Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

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Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Northern Trust Corporation:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Northern Trust Corporation and subsidiaries (the Corporation) as of December 31, 2023 and 2022, the related consolidated statements of income, comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2023, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Corporation as of December 31, 2023 and 2022, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2023, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Corporation’s internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 27, 2024 expressed an unqualified opinion on the effectiveness of the Corporation’s internal control over financial reporting.

Basis for Opinion

These consolidated financial statements are the responsibility of the Corporation’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Corporation in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 95

Assessment of the allowance for credit losses for commercial loans evaluated on a collective basis

As discussed in Notes 1 and 6 to the consolidated financial statements, the Corporation’s allowance for credit losses for commercial loans evaluated on a collective basis (the collective ACL) was $135.4 million of a total allowance for credit losses assigned to loans of $178.7 million as of December 31, 2023. Expected credit losses are measured on a collective basis as long as the financial assets included in the respective pool share similar risk characteristics. The allowance estimation methodology for the collective assessment is based on data representative of the Corporation’s financial asset portfolio from a historical observation period that includes both expansionary and recessionary periods. The estimation methodology and the related qualitative adjustment framework segregate the loan portfolio into segments based on loan and obligor specific factors, including loan type, borrower type, collateral type, loan size, and borrower credit quality. The estimation methodology applies probability of default and loss given default assumptions to the projected exposure at default on a pool basis. For each segment, the probability of default (PD) and loss given default (LGD) are derived for each quarter of the remaining life of each instrument. For the first two years (the reasonable and supportable period), these factors are derived by applying quarterly macroeconomic projections using models developed from historical data on macroeconomic factors and loans with similar factors, including the borrower rating assigned to individual obligors, as applicable. For periods beyond the reasonable and supportable period, the Corporation reverts to its own long-run historical loss experience on a straight-line basis over four quarters. The projected exposure at default for every quarter is based on contractual balance projections as of each quarter-end. Estimating expected lifetime credit losses requires the consideration of the effect of future economic conditions. The Corporation employs multiple scenarios over a reasonable and supportable period to project future conditions. The Corporation determines the probability weights assigned to each scenario at each quarter-end. The quantitative allowance is then reviewed within the qualitative adjustment framework, through which the Corporation applies judgment by assessing internal risk factors, potential limitations in the quantitative methodology, and environmental factors that are not fully contemplated in the forecast to compute adjustments to the quantitative allowance that may impact individual or multiple segments of the loan portfolio.

We identified the assessment of the quantitative component of the collective ACL as a critical audit matter. A high degree of audit effort, including specialized skills and knowledge, and subjective and complex auditor judgment was involved in the assessment of the quantitative component of the collective ACL due to significant measurement uncertainty. Specifically, the assessment encompassed the evaluation of the quantitative component of the collective ACL methodology, including the methods and models used to estimate the PD and LGD and their significant assumptions, the multiple economic forecast scenarios and macroeconomic factors and their respective weightings, and borrower ratings for certain commercial loans. In addition, auditor judgment was required to evaluate the sufficiency of audit evidence obtained.

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and operating effectiveness of certain internal controls related to the critical audit matter. This included controls related to the Corporation’s measurement of the quantitative component of the collective ACL estimate, including controls over:

  • development of the quantitative component of the collective ACL methodology

  • development, calibration and/or performance monitoring of certain PD and LGD models

  • development and approval of the multiple economic forecast scenarios, macroeconomic factors and their respective weightings

  • identification and determination of the significant assumptions used in certain PD and LGD models

  • analysis of the allowance for credit losses for loans results.

We evaluated the Corporation’s process to develop the quantitative component of the collective ACL estimate by testing certain sources of data, factors, and assumptions that the Corporation used, and considered the relevance and reliability of such data, factors and assumptions. In addition, we involved credit risk professionals with specialized skills and knowledge, who assisted in:

  • evaluating the quantitative component of the Corporation’s collective ACL methodology for compliance with U.S. generally accepted accounting principles

  • evaluating judgments made by the Corporation relative to the development, calibration and/or performance monitoring of certain PD and LGD models

  • assessing the conceptual soundness and performance testing of certain PD and LGD models by inspecting model documentation to determine whether the models were suitable for their intended use

96 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION
  • assessing the economic forecast scenarios, the economic input variables and their respective weightings through comparison to publicly available forecasts and the Corporation’s business environment

  • testing individual borrower ratings for a selection of commercial loan relationships by evaluating the financial performance of the borrower, sources of repayment, and any relevant guarantees or underlying collateral.

We also assessed the sufficiency of the audit evidence obtained related to the quantitative component of the collective ACL by evaluating the:

  • cumulative results of the procedures

  • qualitative aspects of the Corporation’s accounting practices

  • potential bias in the accounting estimate

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We have served as the Corporation’s auditor since 2002.

Chicago, Illinois

February 27, 2024

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 97

CONSOLIDATED FINANCIAL STATEMENTS

CONSOLIDATED BALANCE SHEETS

DECEMBER 31,
(In Millions Except Share Information)20232022
ASSETS
Cash and Due from Banks$4,791.5$4,654.2
Federal Reserve and Other Central Bank Deposits34,326.240,030.4
Interest-Bearing Deposits with Banks1,939.01,941.1
Federal Funds Sold—32.0
Securities Purchased under Agreements to Resell784.71,070.3
Debt Securities
Available for Sale (Amortized cost of $23,659.0 and $27,760.0)23,089.826,699.9
Held to Maturity (Fair value of $24,473.0 and $22,879.3)26,221.725,036.1
Trading Account—95.2
Total Debt Securities49,311.551,831.2
Loans
Commercial25,412.821,635.6
Personal22,204.221,257.7
Total Loans (Net of unearned income of $5.9 and $9.0)47,617.042,893.3
Allowance for Credit Losses(192.3)(161.1)
Buildings and Equipment502.2500.5
Client Security Settlement Receivables212.61,698.3
Goodwill702.3691.3
Other Assets10,788.49,855.2
Total Assets$150,783.1$155,036.7
LIABILITIES
Deposits
Demand and Other Noninterest-Bearing$14,246.4$16,582.7
Savings, Money Market and Other Interest-Bearing25,252.131,128.6
Savings Certificates and Other Time4,109.71,981.3
Non U.S. Offices — Noninterest-Bearing8,584.78,757.6
— Interest-Bearing63,971.165,481.9
Total Deposits116,164.0123,932.1
Federal Funds Purchased3,045.41,896.9
Securities Sold Under Agreements to Repurchase784.7567.2
Other Borrowings6,567.87,592.3
Senior Notes2,773.22,724.2
Long-Term Debt4,065.02,066.2
Other Liabilities5,485.14,998.3
Total Liabilities138,885.2143,777.2
STOCKHOLDERS' EQUITY
Preferred Stock, No Par Value; Authorized 10,000,000 shares:
Series D, authorized and outstanding shares of 5,000493.5493.5
Series E, authorized and outstanding shares of 16,000391.4391.4
Common Stock, $1.66 2/3 Par Value; Authorized 560,000,000 shares; Outstanding shares of 205,126,224 and 208,428,309408.6408.6
Additional Paid-In Capital1,009.6983.5
Retained Earnings14,233.813,798.5
Accumulated Other Comprehensive Loss(1,137.9)(1,569.2)
Treasury Stock (40,045,300 and 36,743,215 shares, at cost)(3,501.1)(3,246.8)
Total Stockholders’ Equity11,897.911,259.5
Total Liabilities and Stockholders’ Equity$150,783.1$155,036.7

See accompanying notes to consolidated financial statements on pages 102-171.

98 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

CONSOLIDATED FINANCIAL STATEMENTS

CONSOLIDATED STATEMENTS OF INCOME

FOR THE YEAR ENDED DECEMBER 31,
(In Millions Except Share Information)202320222021
Noninterest Income
Trust, Investment and Other Servicing Fees$4,361.8$4,432.6$4,361.1
Foreign Exchange Trading Income203.9288.6292.6
Treasury Management Fees31.639.344.3
Security Commissions and Trading Income135.0136.2140.2
Other Operating Income228.7191.3243.9
Investment Security Gains (Losses), net(169.5)(214.0)(0.3)
Total Noninterest Income4,791.54,874.05,081.8
Net Interest Income
Interest Income7,325.02,877.71,406.5
Interest Expense5,343.0990.523.8
Net Interest Income1,982.01,887.21,382.7
Provision for (Release of) Credit Losses24.512.0(81.5)
Net Interest Income after Provision for Credit Losses1,957.51,875.21,464.2
Noninterest Expense
Compensation2,321.82,248.02,011.0
Employee Benefits405.2437.4431.4
Outside Services906.5880.3849.4
Equipment and Software945.5838.8736.3
Occupancy232.3219.1208.7
Other Operating Expense472.9359.3299.1
Total Noninterest Expense5,284.24,982.94,535.9
Income before Income Taxes1,464.81,766.32,010.1
Provision for Income Taxes357.5430.3464.8
NET INCOME$1,107.3$1,336.0$1,545.3
Preferred Stock Dividends41.841.841.8
Net Income Applicable to Common Stock$1,065.5$1,294.2$1,503.5
PER COMMON SHARE
Net Income – Basic$5.09$6.16$7.16
– Diluted5.086.147.14
Average Number of Common Shares Outstanding – Basic207,248,094208,309,331208,075,522
– Diluted207,563,746208,867,264208,899,230

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Net Income$1,107.3$1,336.0$1,545.3
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)
Net Unrealized Gains (Losses) on Available for Sale Debt Securities443.7(1,474.7)(534.7)
Net Unrealized Gains (Losses) on Cash Flow Hedges(0.4)3.60.8
Net Foreign Currency Adjustments39.09.410.5
Net Pension and Other Postretirement Benefit Adjustments(51.0)(71.9)59.8
Other Comprehensive Income (Loss)431.3(1,533.6)(463.6)
Comprehensive Income (Loss)$1,538.6$(197.6)$1,081.7

See accompanying notes to consolidated financial statements on pages 102-171.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 99

CONSOLIDATED FINANCIAL STATEMENTS

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

(In Millions Except Per Share Information)PREFERRED STOCKCOMMON STOCKADDITIONAL PAID-IN CAPITALRETAINED EARNINGSACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)TREASURY STOCKTOTAL
Balance at January 1, 2021$884.9$408.6$963.6$12,207.7$428.0$(3,204.5)$11,688.3
Net Income———1,545.3——1,545.3
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)————(463.6)—(463.6)
Dividends Declared:
Common Stock, $2.80 per share———(593.9)——(593.9)
Preferred Stock———(41.8)——(41.8)
Stock Awards and Options Exercised——(24.3)——174.4150.1
Stock Purchased—————(267.6)(267.6)
Balance at December 31, 2021$884.9$408.6$939.3$13,117.3$(35.6)$(3,297.7)$12,016.8
Net Income———1,336.0——1,336.0
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)————(1,533.6)—(1,533.6)
Dividends Declared:
Common Stock, $2.90 per share———(613.0)——(613.0)
Preferred Stock———(41.8)——(41.8)
Stock Awards and Options Exercised——44.2——86.3130.5
Stock Purchased—————(35.4)(35.4)
Balance at December 31, 2022$884.9$408.6$983.5$13,798.5$(1,569.2)$(3,246.8)$11,259.5
Net Income———1,107.3——1,107.3
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)————431.3—431.3
Dividends Declared:
Common Stock, $3.00 per share———(630.2)——(630.2)
Preferred Stock———(41.8)——(41.8)
Stock Awards and Options Exercised——26.1——95.7121.8
Stock Purchased—————(347.5)(347.5)
Excise Tax on Share Repurchases—————(2.5)(2.5)
Balance at December 31, 2023$884.9$408.6$1,009.6$14,233.8$(1,137.9)$(3,501.1)$11,897.9

See accompanying notes to consolidated financial statements on pages 102-171.

100 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

CONSOLIDATED FINANCIAL STATEMENTS

CONSOLIDATED STATEMENTS OF CASH FLOWS

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income$1,107.3$1,336.0$1,545.3
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities
Investment Security (Gains) Losses, net169.51.10.3
Amortization and Accretion of Securities and Unearned Income, net3.059.299.7
Provision for Credit Losses24.512.0(81.5)
Depreciation and Amortization634.6553.6515.6
Change in Accrued Income Taxes(44.4)61.337.2
Pension Plan Contributions(20.4)(24.3)(11.2)
Deferred Income Tax Provision(48.2)(142.7)2.0
Change in Receivables12.057.9(460.9)
Change in Interest Payable85.8172.6(7.8)
Change in Collateral With Derivative Counterparties, net(72.6)639.4(466.5)
Other Operating Activities, net774.5(333.7)183.8
Net Cash Provided by Operating Activities2,625.62,392.41,356.0
CASH FLOWS FROM INVESTING ACTIVITIES
Change in Federal Funds Sold32.0(32.0)—
Change in Securities Purchased under Agreements to Resell285.4(419.0)897.7
Change in Interest-Bearing Deposits with Banks28.5(158.9)2,344.5
Net Change in Federal Reserve and Other Central Bank Deposits6,205.923,483.8(9,970.4)
Purchases of Held to Maturity Debt Securities(32,773.9)(32,830.8)(54,734.9)
Proceeds from the Maturity and Redemption of Held to Maturity Debt Securities32,123.037,667.854,902.6
Purchases of Available for Sale Debt Securities(7,320.2)(4,567.7)(13,896.2)
Proceeds from the Maturity and Sales of Available for Sale Debt Securities11,614.86,513.010,079.0
Change in Loans(4,702.1)(2,441.6)(6,744.7)
Purchases of Buildings and Equipment(116.5)(128.6)(95.5)
Purchases and Development of Computer Software(559.3)(594.9)(419.6)
Change in Client Security Settlement Receivables1,505.5258.0(801.4)
Bank-Owned Life Insurance Policy Premiums—(500.0)—
Other Investing Activities, net(1,539.0)(319.3)(163.7)
Net Cash Provided by (Used in) Investing Activities4,784.125,929.8(18,602.6)
CASH FLOWS FROM FINANCING ACTIVITIES
Change in Deposits(8,478.4)(32,996.9)17,885.5
Change in Federal Funds Purchased1,148.61,896.7(260.0)
Change in Securities Sold under Agreements to Repurchase217.535.3492.1
Change in Short-Term Other Borrowings(1,059.1)3,966.9(426.5)
Proceeds from Long-Term Debt2,000.0——
Proceeds from Senior Notes—1,988.8—
Repayments of Senior Notes—(500.0)(500.0)
Repayment of Floating Rate Capital Debt——(278.8)
Treasury Stock Purchased(347.5)(35.4)(267.6)
Net Proceeds from Stock Options2.33.953.8
Cash Dividends Paid on Common Stock(621.5)(750.2)(583.3)
Cash Dividends Paid on Preferred Stock(41.8)(46.5)(41.8)
Other Financing Activities, net(2.7)—0.1
Net Cash (Used in) Provided by Financing Activities(7,182.6)(26,437.4)16,073.5
Effect of Foreign Currency Exchange Rates on Cash(89.8)(287.4)(159.6)
Change in Cash and Due from Banks137.31,597.4(1,332.7)
Cash and Due from Banks at Beginning of Period4,654.23,056.84,389.5
Cash and Due from Banks at End of Period$4,791.5$4,654.2$3,056.8
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest Paid$5,285.5$822.4$30.8
Income Taxes Paid362.5459.9371.0
Transfers from Loans to OREO0.2—12.9
Transfers from Available for Sale Debt Securities to Held to Maturity Debt Securities—6,623.36,864.1

See accompanying notes to consolidated financial statements on pages 102-171.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 101

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1 – Summary of Significant Accounting Policies

The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (GAAP) and reporting practices prescribed for the banking industry. A description of the more significant accounting policies follows.

A. Basis of Presentation. The consolidated financial statements include the accounts of Northern Trust Corporation (Corporation) and its wholly-owned subsidiary, The Northern Trust Company (Bank), and various other wholly-owned subsidiaries of the Corporation and Bank. Throughout the notes to the consolidated financial statements, the term “Northern Trust” refers to the Corporation and its subsidiaries. Intercompany balances and transactions have been eliminated in consolidation. The consolidated statements of income include results of acquired subsidiaries from the dates of acquisition. Certain prior-year balances have been reclassified consistent with the current year’s presentation.

B. Nature of Operations. The Corporation is a bank holding company that has elected to be a financial holding company under the Bank Holding Company Act of 1956, as amended. The Bank is an Illinois banking corporation headquartered in Chicago and the Corporation’s principal subsidiary. The Corporation conducts business in the United States (U.S.) and internationally through various U.S. and non-U.S. subsidiaries, including the Bank.

Northern Trust generates the majority of its revenue from its two client-focused reporting segments: Asset Servicing and Wealth Management. Asset management and related services are provided to Asset Servicing and Wealth Management clients primarily by the Asset Management business.

Asset Servicing is a leading global provider of asset servicing and related services to corporate and public retirement funds, foundations, endowments, fund managers, insurance companies, sovereign wealth funds, and other institutional investors around the globe. Asset servicing and related services encompass a full range of capabilities including but not limited to: custody; fund administration; investment operations outsourcing; investment management; investment risk and analytical services; employee benefit services; securities lending; foreign exchange; treasury management; brokerage services; transition management services; banking; and cash management. Client relationships are managed through the Bank and the Bank’s and the Corporation’s other subsidiaries, including support from locations in North America, Europe, the Middle East, and the Asia-Pacific region.

Wealth Management focuses on high-net-worth individuals and families, business owners, executives, professionals, retirees, and established privately-held businesses in its target markets. In supporting these targeted segments, Wealth Management provides trust, investment management, custody, and philanthropic services; financial consulting; guardianship and estate administration; family business consulting; family financial education; brokerage services; and private and business banking. Wealth Management also includes Global Family Office, which provides customized services, including but not limited to: investment consulting; global custody; fiduciary; and private banking; family office consulting, and technology solutions, to meet the complex financial and reporting needs of ultra-high-net-worth individuals and family offices across the globe. Wealth Management services are delivered by multidisciplinary teams through a network of offices in 19 U.S. states and Washington, D.C., as well as offices in London, Guernsey, and Abu Dhabi.

C. Use of Estimates in the Preparation of Financial Statements. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions in the application of certain of our significant accounting policies that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expense during the reporting period. Actual results could differ from those estimates.

D. Foreign Currency Remeasurement and Translation. Asset and liability accounts denominated in nonfunctional currencies are remeasured into functional currencies at period-end rates of exchange, except for certain balance sheet items including but not limited to buildings and equipment, goodwill and other intangible assets, which are remeasured at historical exchange rates. Results from remeasurement of asset and liability accounts are reported in Other Operating Income on the consolidated statements of income. Income and expense accounts are remeasured at period-average rates of exchange.

Asset and liability accounts of entities with functional currencies that are not the U.S. dollar are translated at period-end rates of exchange. Income and expense accounts are translated at period-average rates of exchange. Translation adjustments, net of applicable taxes, are reported directly to accumulated other comprehensive income (AOCI), a component of stockholders’ equity.

E. Securities. Available for Sale (AFS) Securities are reported at fair value, with unrealized gains and losses credited or charged, net of the tax effect, to AOCI. Realized gains and losses on AFS securities are determined on a specific identification basis and are reported within Investment Security Gains (Losses), net, on the consolidated statements of

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

income. Interest income is recorded on the accrual basis, adjusted for the amortization of premium and accretion of discount.

Held to Maturity (HTM) Securities consist of debt securities that management intends to, and Northern Trust has the ability to, hold until maturity. Such securities are reported at cost, adjusted for amortization of premium and accretion of discount. Interest income is recorded on the accrual basis adjusted for the amortization of premium and accretion of discount.

Held for Trading Securities are reported at fair value. Realized and unrealized gains and losses on securities held for trading are reported within Security Commissions and Trading Income on the consolidated statements of income.

Nonmarketable Securities primarily consist of Federal Reserve Bank of Chicago and Federal Home Loan Bank stock and community development investments, each of which are recorded in Other Assets on the consolidated balance sheets. Federal Reserve Bank of Chicago and Federal Home Loan Bank stock are reported at cost, which represents redemption value. Community development investments are typically reported at amortized cost. Those community development investments that are designed to generate a return primarily through realization of tax credits and other tax benefits, which are discussed in further detail in Note 28, “Variable Interest Entities,” are amortized over the lives of the related tax credits and other tax benefits.

F. Securities Purchased Under Agreements to Resell and Securities Sold Under Agreements to Repurchase. Securities purchased under agreements to resell and securities sold under agreements to repurchase are accounted for as collateralized financings and recorded at the amounts at which the securities were acquired or sold plus accrued interest. To minimize any potential credit risk associated with these transactions, the fair value of the securities purchased or sold is monitored, limits are set on exposure with counterparties, and the financial condition of counterparties is regularly assessed. It is Northern Trust’s policy to take possession, either directly or via third-party custodians, of securities purchased under agreements to resell. Securities sold under agreements to repurchase are either directly held by, or pledged to the counterparty until the repurchase. Northern Trust nets securities sold under agreements to repurchase against those purchased under agreements to resell when the requirements to net are met.

G. Derivative Financial Instruments. Northern Trust is a party to various derivative financial instruments that are used in the normal course of business to meet the needs of its clients, as part of its trading activity for its own account, and as part of its risk management activities. These instruments generally include foreign exchange contracts, interest rate contracts, total return swap contracts and credit default swap contracts. All derivative financial instruments, whether designated as hedges or not, are recorded at fair value within Other Assets and Other Liabilities on the consolidated balance sheets. Derivative asset and liability positions with the same counterparty are reflected on a net basis on the consolidated balance sheets in cases where legally enforceable master netting arrangements or similar agreements exist. These derivative assets and liabilities are further reduced by cash collateral received from, and deposited with, derivative counterparties. The accounting for changes in the fair value of a derivative on the consolidated statements of income depends on whether or not the contract has been designated as a hedge and qualifies for hedge accounting under GAAP. Derivative financial instruments are recorded within the line item, Other Operating Activities, net, on the consolidated statement of cash flows, except for net investment hedges which are recorded within Other Investing Activities, net.

Changes in the fair value of client-related and trading derivative instruments, which are not designated hedges under GAAP, are recognized currently in either Foreign Exchange Trading Income or Security Commissions and Trading Income on the consolidated statements of income. Changes in the fair value of derivative instruments entered into for risk management purposes but not designated as hedges are recognized currently in Other Operating Income on the consolidated statements of income. Certain derivative instruments used by Northern Trust to manage risk are formally designated and qualify for hedge accounting as fair value, cash flow, or net investment hedges.

Derivatives designated as fair value hedges are used to limit Northern Trust’s exposure to changes in the fair value of assets and liabilities due to movements in interest rates. Changes in the fair value of the derivative instrument and changes in the fair value of the hedged asset or liability attributable to the hedged risk are recognized currently in Interest Income or Interest Expense on the consolidated statements of income. For substantially all fair value hedges, Northern Trust applies the “shortcut” method of accounting, available under GAAP. As a result, changes recorded in the fair value of the hedged item are assumed to equal the offsetting gain or loss on the derivative. For fair value hedges that do not qualify for the “shortcut” method of accounting, Northern Trust utilizes regression analysis in assessing whether these hedging relationships are highly effective at inception and quarterly thereafter.

Derivatives designated as cash flow hedges are used to minimize the variability in cash flows of earning assets or forecasted transactions caused by movements in interest or foreign exchange rates. Changes in the fair value of such derivatives are recognized in AOCI, a component of stockholders’ equity, and there is no change to the accounting for the hedged item. Balances in AOCI are reclassified to earnings when the hedged forecasted transaction impacts earnings, and are reflected in the same income statement line item. Northern Trust applies the “shortcut” method of accounting for cash flow hedges of certain available for sale investment securities. For cash flow hedges of certain other available for sale

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

investment securities, foreign currency denominated investment securities, and forecasted foreign currency denominated revenue and expenditure transactions, Northern Trust closely matches all terms of the hedged item and hedging derivative at inception and on an ongoing basis. For cash flow hedges of available for sale investment securities, to the extent all terms are not perfectly matched, effectiveness is assessed using regression analysis. For cash flow hedges of forecasted foreign currency denominated revenue and expenditure transactions and investment securities, to the extent all terms are not perfectly matched, effectiveness is assessed using the dollar-offset method.

Foreign exchange contracts and qualifying non-derivative instruments designated as net investment hedges are used to minimize Northern Trust’s exposure to variability in the foreign currency translation of net investments in non-U.S. branches and subsidiaries. Changes in the fair value of the hedging instrument are recognized in AOCI consistent with the related translation gains and losses of the hedged net investment. For net investment hedges, all critical terms of the hedged item and the hedging instrument are matched at inception and on an ongoing basis. Amounts recorded in AOCI are reclassified to earnings only upon the sale or liquidation of an investment in a non-U.S. branch or subsidiary.

Fair value, cash flow, and net investment hedges are designated and formally documented as such contemporaneous with the transaction. The formal documentation describes the hedge relationship and identifies the hedging instruments and hedged items. Included in the documentation is a discussion of the risk management objectives and strategies for undertaking such hedges, the nature of the risk being hedged, and a description of the method for assessing hedge effectiveness at inception and on an ongoing basis. For hedges that do not qualify for the “shortcut” or the critical terms match methods of accounting, a formal assessment is performed on a calendar quarter basis to verify that derivatives used in hedging transactions continue to be highly effective in offsetting the changes in fair value or cash flows of the hedged item. Hedge accounting is discontinued if a derivative ceases to be highly effective, matures, is terminated or sold, if a hedged forecasted transaction is no longer expected to occur, or if Northern Trust removes the derivative’s hedge designation. Subsequent gains and losses on these derivatives are included in Foreign Exchange Trading Income or Security Commissions and Trading Income on the consolidated statements of income. For discontinued cash flow hedges, the accumulated gain or loss on the derivative remains in AOCI and is reclassified to earnings in the period in which the previously hedged forecasted transaction impacts earnings or is no longer probable of occurring. For discontinued fair value hedges, the previously hedged asset or liability ceases to be adjusted for changes in its fair value. Previous adjustments to the hedged item are amortized over the remaining life of the hedged item.

H. Loans. Loans are recognized assets that represent a contractual right to receive money either on demand or on fixed or determinable dates. Loans are disaggregated for disclosure purposes by portfolio segment (segment) and by class. Northern Trust has defined its segments as commercial and personal. A class of loans is a subset of a segment, the components of which have similar risk characteristics, measurement attributes, or risk monitoring methods. The classes within the commercial segment have been defined as commercial and institutional, commercial real estate, non-U.S. and other. The classes within the personal segment have been defined as residential real estate, private client and other.

Loan Classification. Loans that are held for investment are reported at the principal amount outstanding, net of unearned income. Loans classified as held for sale are reported at the lower of cost or fair value. Undrawn commitments relating to loans that are not held for sale are recorded in Other Liabilities and are carried at the amount of unamortized fees with an allowance for credit loss liability recognized for any estimated expected losses.

Nonaccrual Loans and Recognition of Income. Interest income on loans is recorded on an accrual basis unless, in the opinion of management, there is a question as to the ability of the debtor to meet the terms of the loan agreement, or interest or principal is more than 90 days contractually past due and the loan is not well-secured and in the process of collection. Loans meeting such criteria are classified as nonaccrual and interest income is recorded on a cash basis. Past due status is based on how long since the contractual due date a principal or interest payment has been past due. For disclosure purposes, loans that are 29 days past due or less are reported as current. At the time a loan is determined to be nonaccrual, interest accrued but not collected is reversed against interest income in the current period. Interest collected on nonaccrual loans is applied to principal unless, in the opinion of management, collectability of principal is not in doubt. Management’s assessment of indicators of loan collectability, and its policies relative to the recognition of interest income, including the suspension and subsequent resumption of income recognition, do not meaningfully vary between the different loan classes. Nonaccrual loans are returned to performing status when factors indicating doubtful collectability no longer exist. Factors considered in returning a loan to performing status are consistent across all classes of loans and, in accordance with regulatory guidance, relate primarily to expected payment performance. A loan is eligible to be returned to performing status when: (i) no principal or interest that is due is unpaid and repayment of the remaining contractual principal and interest is expected or (ii) the loan has otherwise become well-secured (possessing realizable value sufficient to discharge the debt, including accrued interest, in full) and is in the process of collection (through action reasonably expected to result in debt repayment or restoration to a current status in the near future). A loan that has not been brought fully current may be restored to performing status provided there has been a sustained period of repayment performance (generally a minimum of six payment periods) by the borrower in accordance with the contractual terms, and Northern Trust is reasonably assured of repayment within a reasonable period of time. Additionally, a loan that has been formally

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restructured so as to be reasonably assured of repayment and performance according to its modified terms may be returned to accrual status, provided there was a well-documented credit evaluation of the borrower’s financial condition and prospects of repayment under the revised terms, and there has been a sustained period of repayment performance (generally a minimum of six payment periods) under the revised terms.

Loan Modifications to Borrowers Experiencing Financial Difficulty - After the Adoption of Accounting Standards Update No. 2022-02. For borrowers experiencing financial difficulties, Northern Trust may provide payment relief by modifying the terms of the original loan. Loan modifications to borrowers experiencing financial difficulty involve primarily the extensions of term, deferrals of principal and interest, interest rate concessions, and other modifications or a combination thereof. Northern Trust considers payment deferrals of less than 90 days as insignificant, absent any material modifications to other loan terms.

The expected credit loss for modifications to borrowers experiencing financial difficulty is measured based on either the expected future cash flows, the value of collateral, or other factors that may impact the borrower’s ability to pay. When the discounted cash flow method is applied, the expected credit loss reflects the difference between the amortized cost basis and the present value of the expected cash flows and is measured based upon the present value of expected future cash flows, discounted at the post-modification effective interest rate and contractual terms. If a loan’s contractual interest rate varies based on subsequent changes in an independent factor, such as an index or rate, the loan’s effective interest rate is calculated based on the factor as it changes over the life of the loan. Northern Trust elected not to project changes in the factor for purposes of estimating expected future cash flows. If the loan is collateral dependent, the expected loss is measured based on the fair value of the collateral at the reporting date.

If the loan valuation is less than the recorded value of the loan, either an allowance is established or a charge-off is recorded for the difference. The nature and extent of further deterioration in credit quality, including a subsequent default, is considered in the determination of an appropriate level of allowance for credit losses for all loan modifications to borrowers experiencing financial difficulty.

Troubled Debt Restructurings (TDRs) - Prior to the Adoption of Accounting Standards Update No. 2022-02. A loan that was modified as a concession by Northern Trust or a bankruptcy court resulting from the debtor’s financial difficulties was referred to as a troubled debt restructuring (TDR). All TDRs were reported starting in the calendar year of their restructuring. In subsequent years, a TDR may have ceased to be reported if the loan was modified at a market rate and performed according to the modified terms for at least six payment periods. A loan that was modified at a below market rate was returned to accrual status if it satisfied the six-payment-period performance requirement.

The expected credit loss was measured based upon the present value of expected future cash flows, discounted at the effective interest rate based on the original contractual rate. If a loan’s contractual interest rate varied based on subsequent changes in an independent factor, such as an index or rate, the loan’s effective interest rate was calculated based on the factor as it changed over the life of the loan. Northern Trust elected not to project changes in the factor for purposes of estimating expected future cash flows. Further, Northern Trust elected not to adjust the effective interest rate for prepayments. If the loan was collateral dependent, the expected loss was measured based on the fair value of the collateral at the reporting date.

If the loan valuation was less than the recorded value of the loan, either an allowance was established, or a charge-off was recorded, for the difference. Smaller balance (individually less than $1 million) homogeneous loans were collectively evaluated.

All loans with TDR modifications were evaluated for additional expected credit losses. The nature and extent of further deterioration in credit quality, including a subsequent default, was considered in the determination of an appropriate level of allowance for credit losses.

Collateral Dependent Financial Assets. A financial asset is collateral-dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral. Most of Northern Trust’s collateral dependent credit exposure relates to its residential real estate portfolio for which the collateral is usually the underlying real estate property. For collateral dependent financial assets, it is Northern Trust’s policy to reserve or charge-off the difference between the amortized cost basis of the loan and the value of the collateral.

Premium, Discounts, Origination Costs and Fees. Premiums and discounts on loans are recognized as an adjustment of yield using the interest method based on the contractual terms of the loan. Certain direct origination costs and fees are netted, deferred and amortized over the life of the related loan as an adjustment to the loan’s yield.

I. Allowance for Credit Losses. The allowance for credit losses represents management’s best estimate of lifetime expected credit losses related to various financial assets subject to credit risk and off-balance sheet credit exposure.

Northern Trust measures expected credit losses of financial assets with similar risk characteristics on a collective basis. A financial asset is measured individually if it does not share similar risk characteristics with other financial assets and the related allowance is determined through an individual evaluation.

Management’s estimates utilized in establishing an appropriate level of allowance for credit losses are not dependent on any single assumption. In determining an appropriate allowance level, management evaluates numerous variables, many

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of which are interrelated or dependent on other assumptions and estimates, and takes into consideration past events, current conditions and reasonable and supportable forecasts.

Forecasting and Reversion. Estimating expected lifetime credit losses requires the consideration of the effect of future economic conditions. Northern Trust employs multiple scenarios over a reasonable and supportable period (currently two years) to project future conditions. Key variables determined to be relevant for projecting credit losses on the portfolios in scope include macroeconomic factors, such as corporate profits, unemployment, and real estate price indices, as well as financial market factors such as equity prices, volatility, and credit spreads. For periods beyond the reasonable and supportable period, Northern Trust reverts to its own historical loss experiences on a straight-line basis over four quarters.

Allowance for Loans. The allowance estimation methodology for the collective assessment is based on data representative of the Corporation’s financial asset portfolio from a historical observation period that includes both expansionary and recessionary periods. The estimation methodology and the related qualitative adjustment framework segregate the loan portfolio into homogeneous segments based on similar risk characteristics or risk monitoring methods.

Northern Trust utilizes a quantitative probability of default/loss given default approach for the calculation of its credit allowance on a collective basis. For each of the different parameters, specific credit models or qualitative estimation methodologies for the individual loan segments were developed. For each segment, the probability of default and the loss given default are applied to the exposure at default for each projected quarter to determine the quantitative component of the allowance. The quantitative allowance is then reviewed within a qualitative adjustment framework, through which management applies judgment by assessing internal risk factors, potential limitations in the quantitative methodology, and environmental factors that are not fully contemplated in the forecast to compute an adjustment to the quantitative allowance for each segment and class of the loan portfolio.

The allowance related to credit exposures evaluated on an individual basis is determined through evaluations of individual loans, and lending-related commitments that have defaulted, generally those with Borrower Ratings of 8 and 9, that are based on expected future cash flows, the value of collateral, and other factors that may impact the borrowers’ ability to pay. For defaulted loans for which the amount of allowance, if any, is determined based on the value of the underlying collateral, third-party appraisals are typically obtained and utilized by management. These appraisals are generally less than twelve months old and are subject to adjustments to reflect management’s judgment as to the realizable value of the collateral.

Northern Trust analyzes its exposure to credit losses from both on-balance sheet and off-balance sheet activity using a consistent methodology for the quantitative framework as well as the qualitative framework. For purposes of estimating the allowance for credit losses for undrawn loan commitments and standby letters of credit, the exposure at default includes estimated drawdowns of the undrawn commitments based on credit utilization factors, resulting in a proportionate amount of expected credit losses.

Allowance for HTM Securities. HTM debt securities classified as U.S. government, government sponsored agency, and certain securities classified as obligations of states and political subdivisions are considered to be guarantees of the U.S. government or an agency of the U.S. government, and therefore an allowance for credit losses is not estimated for such investments as the expected probability of non-payment of the amortized cost basis is zero.

HTM debt securities classified as “other asset-backed securities” represent pools of underlying receivables from which the cash flows are used to pay the bonds that vary in seniority. Utilizing a qualitative estimation approach, the allowance for other asset-backed securities is assessed by evaluating underlying pool performance based on delinquency rates and available credit support.

HTM debt securities classified as “other” relate to investments purchased by Northern Trust to fulfill its obligations under the Community Reinvestment Act (CRA). Northern Trust fulfills its obligations under the CRA by making qualified investments for purposes of supporting institutions and programs that benefit low-to-moderate income communities within Northern Trust’s market area. The allowance for CRA investments is assessed using a qualitative estimation approach primarily based on internal historical performance experience and default history of the underlying CRA portfolios to determine a quantitative component of the allowance.

The allowance estimation methodology for all other HTM debt securities is developed using a combination of external and internal data. The estimation methodology groups securities with shared characteristics for which the probability of default and the loss given default are applied to the total exposure at default to determine a quantitative component of the allowance.

Allowance for AFS Securities. AFS securities impairment reviews are conducted quarterly to identify and evaluate securities that have indications of possible credit losses. A determination as to whether a security’s decline in market value is related to credit impairment takes into consideration numerous factors and the relative significance of any single factor can vary by security. Factors Northern Trust considers in determining whether impairment is credit related include, but are not limited to, the severity of the impairment; the cause of the impairment; the financial condition and near-term prospects of the issuer; activity in the market of the issuer, which may indicate adverse credit conditions; Northern Trust’s intent regarding the sale of the security as of the balance sheet date; and the likelihood that Northern Trust will not be required to

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sell the security for a period of time sufficient to allow for the recovery of the security’s amortized cost basis. For each security meeting the requirements of Northern Trust’s internal screening process, an extensive review is conducted to determine if a credit loss has occurred that is then based on the best estimate of cash flows to be collected from the security, discounted using the security’s effective interest rate. If the present value of the expected cash flows is found to be less than the current amortized cost of the security, an allowance for credit losses is generally recorded equal to the difference between the two amounts, limited to the amount the amortized cost basis exceeds the fair value of the security.

If management intends to sell, or will more likely than not be required to sell, an AFS security prior to recovery of its amortized cost basis, the security is written down to fair value with unrealized losses recognized in Investment Security Gains (Losses), net on the consolidated statements of income.

Allowance for Other Financial Assets. The allowance for other financial assets covers assets categorized as Due from Banks, Other Central Bank Deposits, Interest-Bearing Deposits with Banks, Federal Funds Sold, and Other Assets. The Other Assets category includes other miscellaneous credit exposures reported in Other Assets on the consolidated balance sheets. The allowance estimation methodology for other financial assets primarily utilizes a similar approach as the one used for the HTM debt securities portfolio. It consists of a combination of externally and internally developed loss data, adjusted for the appropriate contractual term. Northern Trust’s portfolio is composed mostly of institutions within the “1 to 3” internal borrower rating category and is expected to exhibit minimal to modest likelihood of loss.

The portion of the allowance assigned to loans, HTM debt securities, and other financial assets is presented as a contra asset in Allowance for Credit Losses on the consolidated balance sheets. The portion of the allowance assigned to undrawn loan commitments and standby letters of credit is reported in Other Liabilities on the consolidated balance sheets. The allowance for AFS securities is presented parenthetically with the amortized cost basis of AFS securities on the consolidated balance sheets.

Provision for Credit Losses. Provision for Credit Losses on the consolidated statements of income represents the change in the Allowance for Credit Losses on the consolidated balance sheets and is the charge to current period earnings. It represents the amount needed to maintain the Allowance for Credit Losses on the consolidated balance sheets at an appropriate level to absorb lifetime expected credit losses related to financial assets in scope. Actual losses may vary from current estimates and the amount of the Provision for Credit Losses may be either greater than or less than actual net charge-offs.

Contractual Term. Northern Trust estimates expected credit losses over the contractual term of the financial assets adjusted for prepayments, unless prepayments are not relevant to specific portfolios or sub-portfolios. Extension and renewal options are typically not considered since it is not Northern Trust’s practice to enter into arrangements where the borrower has the unconditional option to renew, or a conditional extension option whereby the conditions are beyond Northern Trust’s control.

Accrued Interest. Northern Trust elected not to measure an allowance for credit losses for accrued interest receivables related to its loan and securities portfolios as its policy is to write-off uncollectible accrued interest receivable balances in a timely manner. Accrued interest is written off by reversing interest income during the quarter the financial asset is moved from an accrual to a nonaccrual status.

J. Standby Letters of Credit. Fees on standby letters of credit are recognized in Other Operating Income on the consolidated statements of income using the straight-line method over the lives of the underlying agreements. Northern Trust’s recorded other liability for standby letters of credit, reflecting the obligation it has undertaken, is measured as the amount of unamortized fees on these instruments.

K. Buildings and Equipment. Buildings and equipment owned are carried at original cost less accumulated depreciation. The charge for depreciation is computed using the straight-line method based on the following range of lives: buildings – up to 30 years; equipment – 3 to 10 years; and leasehold improvements – the shorter of the lease term or 15 years.

L. Other Real Estate Owned (OREO). OREO is comprised of commercial and residential real estate properties acquired in partial or total satisfaction of loans. OREO assets are carried at the lower of cost or fair value less estimated costs to sell and are recorded in Other Assets on the consolidated balance sheets. Fair value is typically based on third-party appraisals. Appraisals of OREO properties are updated on an annual basis and are subject to adjustments to reflect management’s judgment as to the realizable value of the properties. Losses identified during the 90-day period after the acquisition of such properties are charged against the Allowance for Credit Losses assigned to Loans. Subsequent write-downs to the carrying value of these assets that may be required and gains or losses realized from asset sales are recorded within Other Operating Expense on the consolidated statements of income.

M. Goodwill and Other Intangible Assets. Goodwill is not subject to amortization. Separately identifiable acquired intangible assets with finite lives are amortized over their estimated useful lives, primarily on a straight-line basis. Purchased software, software licenses, and allowable internal costs, including compensation relating to software developed for internal use, are capitalized. Software is amortized using the straight-line method over the estimated useful lives of the

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assets, generally ranging from 3 to 10 years. Fees paid for the use of software services that do not convey a software license are expensed as incurred.

Goodwill and other intangible assets are reviewed for impairment on an annual basis or more frequently if events or changes in circumstances indicate the carrying amounts may not be recoverable.

N. Trust, Investment and Other Servicing Fees. Trust, Investment and Other Servicing Fees are recorded on an accrual basis, over the period in which the service is provided. Fees are primarily a function of the market value of assets custodied, managed and serviced, transaction volumes, and securities lending volume and spreads, as set forth in the underlying client agreement. This revenue recognition involves the use of estimates and assumptions, including components that are calculated based on estimated asset valuations and transaction volumes.

O. Client Security Settlement Receivables. These receivables result from custody client security sales executed under contractual settlement date accounting that have not yet settled as well as custody client withdrawals from short-term investment funds that settle on the following business day. Northern Trust advances cash to the client on the date of either trade execution or client withdrawal and awaits collection from either the settled trade or short-term investment funds.

P. Income Taxes. Northern Trust follows an asset and liability approach to account for income taxes. The objective is to recognize the amount of taxes payable or refundable for the current year, and to recognize deferred tax assets and liabilities for future tax consequences of temporary differences between the amounts reported in the financial statements and the tax bases of assets and liabilities. The measurement of tax assets and liabilities is based on enacted tax laws and applicable tax rates.

Tax positions taken or expected to be taken on a tax return are evaluated based on their likelihood of being sustained upon examination by tax authorities. Only tax positions that are considered more-likely-than-not to be sustained are recorded on the consolidated financial statements. A valuation allowance is established for deferred tax assets if it is more-likely-than-not that all or a portion will not be realized. Northern Trust recognizes any interest and penalties related to unrecognized tax benefits in the Provision for Income Taxes on the consolidated statements of income.

Q. Cash Flow Statements. Cash and cash equivalents in the cash flow statements have been defined as “Cash and Due from Banks” on the consolidated balance sheets.

R. Pension and Other Postretirement Benefits. Northern Trust records the funded status of its defined benefit pension and other postretirement plans on the consolidated balance sheets. Overfunded pension and postretirement benefits are reported in Other Assets and underfunded pension and postretirement benefits are reported in Other Liabilities on the consolidated balance sheets. Plan assets and benefit obligations are measured annually at December 31, unless specific circumstances require an interim remeasurement. Plan assets are determined based on fair value generally representing observable market prices. The projected benefit obligations are determined based on the present value of projected benefit distributions at an assumed discount rate. Actuarial gains and losses accumulated in AOCI are amortized as a component of net periodic pension cost if they exceed 10% of the greater of the projected benefit obligation or the market-related value of plan assets as of the beginning of the year. Amortization is recognized on a straight-line basis over the expected average remaining service period of the active employees or over the expected remaining lifetime of plan participants for plans that have been previously frozen.

S. Share-Based Compensation Plans. Northern Trust recognizes as expense the grant-date fair value of stock and stock unit awards and other share-based compensation granted to employees as Compensation on the consolidated statements of income. The fair values of stock and stock unit awards, including performance stock unit awards and director awards, are based on the closing price of the Corporation’s stock on the date of grant adjusted for certain awards that do not accrue dividends while vesting.

Compensation expense for share-based award grants with terms that provide for a graded vesting schedule, whereby portions of the award vest in increments over the requisite service period, are recognized on a straight-line basis over the requisite service period for the entire award. Compensation expense for performance stock unit awards are recognized on a straight-line basis over the requisite service period of the award based on expected achievement of the performance condition. Adjustments are made for employees that meet certain eligibility criteria at the grant date or during the requisite service period.

Northern Trust does not include an estimate of future forfeitures in its recognition of share-based compensation expense. Share-based compensation expense is adjusted based on forfeitures as they occur. Dividend equivalents are accrued for performance stock unit awards, most restricted stock unit awards, and director awards not yet vested, and are paid upon vesting. Certain restricted stock units are not entitled to dividend equivalents during the vesting period. Cash flows resulting from the realization of excess tax benefits are classified as operating cash flows on the consolidated statements of cash flows.

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T. Net Income Per Common Share. Basic net income per common share is computed by dividing net income/loss applicable to common stock by the weighted average number of common shares outstanding during each period. Diluted net income per common share is computed by dividing net income applicable to common stock and potential common shares by the aggregate of the weighted average number of common shares outstanding during the period and common share equivalents calculated for stock options outstanding using the treasury stock method. In a period of a net loss, diluted net income per common share is calculated in the same manner as basic net income per common share.

Northern Trust calculates net income applicable to common stock using the two-class method, whereby net income is allocated between common stock and participating securities.

Note 2 – Recent Accounting Pronouncements

On January 1, 2023, Northern Trust adopted Accounting Standards Update (ASU) No. 2022-01, “Derivatives and Hedging (Topic 815): Fair Value Hedging—Portfolio Layer Method” (ASU 2022-01). The amendments in ASU 2022-01 expand the current last-of-layer hedging model from a single-layer method to allow multiple hedged layers of a single closed portfolio. To reflect that expansion, the last-of-layer method is renamed the portfolio layer method. In addition, ASU 2022-01 (1) expands the scope of the portfolio layer method to include non-prepayable assets, (2) specifies eligible hedging instruments in a single-layer hedge, (3) provides additional guidance on the accounting for and disclosure of hedge basis adjustments under the portfolio layer method and (4) specifies how hedge basis adjustments should be considered when determining credit losses for the assets included in the closed portfolio. Upon adoption of ASU 2022-01, there was no impact to Northern Trust’s consolidated balance sheets or consolidated statements of income.

On January 1, 2023, Northern Trust adopted ASU No. 2022-02, “Financial Instruments—Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures” (ASU 2022-02). The amendments in ASU 2022-02 eliminate the accounting guidance for troubled debt restructurings (TDRs) for creditors that have adopted the current expected credit losses accounting standard while enhancing disclosure requirements for certain loan refinancings and restructurings made to borrowers experiencing financial difficulty. In addition, ASU 2022-02 requires that a public business entity disclose current-period gross charge-offs by year of origination for financing receivables and net investment in leases. Upon adoption of ASU 2022-02, there was no significant impact to Northern Trust’s consolidated balance sheets or consolidated statements of income. Please refer to Note 5, “Loans” for further information.

On January 1, 2023, Northern Trust adopted ASU No. 2022-04, “Liabilities—Supplier Finance Programs (Topic 405-50): Disclosure of Supplier Finance Program Obligations” (ASU 2022-04). The amendments in ASU 2022-04 enhance the transparency about the use of supplier finance programs for investors or other allocators of capital. Specifically, ASU 2022-04 requires that a buyer in a supplier finance program disclose sufficient qualitative and quantitative information about the program to allow a user of financial statements to understand the program’s nature, activity during the period, changes from period to period, and potential magnitude. Upon adoption of ASU 2022-04, there was no impact to Northern Trust’s consolidated balance sheets or consolidated statements of income.

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Note 3 – Fair Value Measurements

Fair value under GAAP is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants on the measurement date.

Fair Value Hierarchy. The following describes the hierarchy of valuation inputs (Levels 1, 2, and 3) used to measure fair value and the primary valuation methodologies used by Northern Trust for financial instruments measured at fair value on a recurring basis. Observable inputs reflect market data obtained from sources independent of the reporting entity; unobservable inputs reflect the entity’s own assumptions about how market participants would value an asset or liability based on the best information available. GAAP requires an entity measuring fair value to maximize the use of observable inputs and minimize the use of unobservable inputs and establishes a fair value hierarchy of inputs. Financial instruments are categorized within the hierarchy based on the lowest level input that is significant to their valuation. Northern Trust’s policy is to recognize transfers into and transfers out of fair value levels as of the end of the reporting period in which the transfer occurred. No transfers into or out of Level 3 occurred during the years ended December 31, 2023, or 2022.

Level 1 – Quoted, active market prices for identical assets or liabilities. Northern Trust’s Level 1 assets are comprised primarily of AFS investments in U.S. Treasury securities.

Level 2 – Observable inputs other than Level 1 prices, such as quoted active market prices for similar assets or liabilities, quoted prices for identical or similar assets in inactive markets, and model-derived valuations in which all significant inputs are observable in active markets. Northern Trust’s Level 2 assets include AFS and certain trading account debt securities, the fair values of which are determined predominantly by external pricing vendors. Prices received from vendors are compared to other vendor and third-party prices. If a security price obtained from a pricing vendor is determined to exceed pre-determined tolerance levels that are assigned based on an asset type’s characteristics, the exception is researched and, if the price is not able to be validated, an alternate pricing vendor is utilized, consistent with Northern Trust’s pricing source hierarchy. As of December 31, 2023, Northern Trust’s AFS debt securities portfolio included 929 Level 2 securities with an aggregate market value of $19.5 billion. All 929 debt securities were valued by external pricing vendors. As of December 31, 2022, Northern Trust’s AFS debt securities portfolio included 1,163 Level 2 debt securities with an aggregate market value of $24.0 billion. All 1,163 debt securities were valued by external pricing vendors.

Northern Trust has established processes and procedures to assess the suitability of valuation methodologies used by external pricing vendors, including reviews of valuation techniques and assumptions used for selected securities. On a daily basis, periodic quality control reviews of prices received from vendors are conducted which include comparisons to prices on similar security types received from multiple pricing vendors and to the previous day’s reported prices for each security. Predetermined tolerance level exceptions are researched and may result in additional validation through available market information or the use of an alternate pricing vendor. Quarterly, Northern Trust reviews documentation from third-party pricing vendors regarding the valuation processes and assumptions used in their valuations and assesses whether the fair value levels assigned by Northern Trust to each security classification are appropriate. Annually, valuation inputs used within third-party pricing vendor valuations are reviewed for propriety on a sample basis through a comparison of inputs used to comparable market data, including security classifications that are less actively traded and security classifications comprising significant portions of the portfolio.

Level 2 assets and liabilities also include derivative contracts which are valued internally using widely accepted income-based models that incorporate inputs readily observable in actively quoted markets and reflect the contractual terms of the contracts. Observable inputs include foreign exchange rates and interest rates for foreign exchange contracts; interest rates for interest rate swap contracts and forward contracts; and interest rates and volatility inputs for interest rate option contracts. Northern Trust evaluates the impact of counterparty credit risk and its own credit risk on the valuation of its derivative instruments. Factors considered include the likelihood of default by Northern Trust and its counterparties, the remaining maturities of the instruments, net exposures after giving effect to master netting arrangements or similar agreements, available collateral, and other credit enhancements in determining the appropriate fair value of derivative instruments. The resulting valuation adjustments have not been considered material.

Level 3 – Valuation techniques in which one or more significant inputs are unobservable in the marketplace.

Northern Trust’s Level 3 liabilities consist of swaps that Northern Trust entered into with the purchaser of 1.1 million and 1.0 million shares of Visa Inc. Class B common stock (Visa Class B common shares) previously held by Northern Trust and sold in June 2016 and 2015, respectively. Pursuant to the swaps, Northern Trust retains the risks associated with the ultimate conversion of the Visa Class B common shares into shares of Visa Inc. Class A common stock (Visa Class A common shares), such that the counterparty will be compensated for any dilutive adjustments to the conversion ratio and Northern Trust will be compensated for any anti-dilutive adjustments to the ratio. The swaps also require periodic payments from Northern Trust to the counterparty calculated by reference to the market price of Visa Class A common shares and a fixed rate of interest. The fair value of the swaps is determined using a discounted cash flow methodology. The significant unobservable inputs used in the fair value measurement are Northern Trust’s own assumptions about

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estimated changes in the conversion rate of the Visa Class B common shares into Visa Class A common shares, the date on which such conversion is expected to occur and the estimated growth rate of the Visa Class A common share price. See “Visa Class B Common Shares” under Note 24, “Commitments and Contingent Liabilities,” for further information.

Northern Trust believes its valuation methods for its assets and liabilities carried at fair value are appropriate; however, the use of different methodologies or assumptions, particularly as applied to Level 3 assets and liabilities, could have a material effect on the computation of their estimated fair values.

Management of various businesses and departments of Northern Trust (including Corporate Market Risk, Credit Risk Management, Corporate Finance, Asset Servicing and Wealth Management) reviews valuation methods and models for Level 3 assets and liabilities. Fair value measurements are performed upon acquisitions of an asset or liability. Management of the appropriate business or department reviews assumed inputs, especially when unobservable in the marketplace, in order to substantiate their use in each fair value measurement. When appropriate, management reviews forecasts used in the valuation process in light of other relevant financial projections to understand any variances between current and previous fair value measurements. In certain circumstances, third party information is used to support the fair value measurements. If certain third party information seems inconsistent with consensus views, a review of the information is performed by management of the respective business or department to determine the appropriate fair value of the asset or liability.

The following table presents the fair values of Northern Trust’s Level 3 liabilities as of December 31, 2023 and 2022, as well as the valuation techniques, significant unobservable inputs, and quantitative information used to develop significant unobservable inputs for such liabilities as of such dates.

TABLE 51: LEVEL 3 SIGNIFICANT UNOBSERVABLE INPUTS

DECEMBER 31, 2023
FINANCIAL INSTRUMENTFAIR VALUEVALUATION TECHNIQUEUNOBSERVABLE INPUTSINPUT VALUESWEIGHTED-AVERAGE INPUT VALUES(1)
Swaps Related to Sale of Certain Visa Class B Common Shares$25.4 millionDiscounted Cash FlowConversion Rate1.59x1.59x
Visa Class A Appreciation10.49%10.49%
Expected Duration9-27 months13 months

(1) Weighted average of expected duration based on scenario probability.

DECEMBER 31, 2022
FINANCIAL INSTRUMENTFAIR VALUEVALUATION TECHNIQUEUNOBSERVABLE INPUTSINPUT VALUESWEIGHTED-AVERAGE INPUT VALUES(1)
Swaps Related to Sale of Certain Visa Class B Common Shares$34.8 millionDiscounted Cash FlowConversion Rate1.60x1.60x
Visa Class A Appreciation8.53%8.53%
Expected Duration12-33 months20 months

(1) Weighted average of expected duration based on scenario probability.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 111

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following presents assets and liabilities measured at fair value on a recurring basis as of December 31, 2023 and 2022, segregated by fair value hierarchy level.

TABLE 52: RECURRING BASIS HIERARCHY LEVELING

DECEMBER 31, 2023
(In Millions)LEVEL 1LEVEL 2LEVEL 3NETTINGASSETS/ LIABILITIES AT FAIR VALUE
Debt Securities
Available for Sale
U.S. Government$3,622.2$—$—$—$3,622.2
Obligations of States and Political Subdivisions—295.8——295.8
Government Sponsored Agency—11,553.0——11,553.0
Non-U.S. Government—264.4——264.4
Corporate Debt—279.5——279.5
Covered Bonds—347.1——347.1
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds—2,899.9——2,899.9
Other Asset-Backed—2,962.6——2,962.6
Commercial Mortgage-Backed—865.3——865.3
Total Available for Sale3,622.219,467.6——23,089.8
Other Assets
Money Market Investment95.0———95.0
Derivative Assets
Foreign Exchange Contracts—3,266.7—(2,937.2)329.5
Interest Rate Contracts—301.5—(189.5)112.0
Total Derivative Assets—3,568.2—(3,126.7)441.5
Other Liabilities
Derivative Liabilities
Foreign Exchange Contracts—3,255.2—(2,175.7)1,079.5
Interest Rate Contracts—369.2—(6.0)363.2
Other Financial Derivatives(1)——25.4(23.7)1.7
Total Derivative Liabilities$—$3,624.4$25.4$(2,205.4)$1,444.4

Note: Northern Trust has elected to net derivative assets and liabilities when legally enforceable master netting arrangements or similar agreements exist between Northern Trust and the counterparty. As of December 31, 2023, derivative assets and liabilities shown above also include reductions of $2,093.8 million and $1,172.5 million, respectively, as a result of cash collateral received from and deposited with derivative counterparties.

(1) This line consists of swaps related to the sale of certain Visa Class B common shares.

112 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

DECEMBER 31, 2022
(In Millions)LEVEL 1LEVEL 2LEVEL 3NETTINGASSETS/ LIABILITIES AT FAIR VALUE
Debt Securities
Available for Sale
U.S. Government$2,747.4$—$—$—$2,747.4
Obligations of States and Political Subdivisions—787.6——787.6
Government Sponsored Agency—11,545.2——11,545.2
Non-U.S. Government—360.0——360.0
Corporate Debt—1,747.6——1,747.6
Covered Bonds—388.7——388.7
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds—2,479.4——2,479.4
Other Asset-Backed—5,256.2——5,256.2
Commercial Mortgage Backed—1,387.8——1,387.8
Total Available for Sale2,747.423,952.5——26,699.9
Trading Account95.00.2——95.2
Total Available for Sale and Trading Debt Securities2,842.423,952.7——26,795.1
Other Assets
Derivative Assets
Foreign Exchange Contracts—3,510.1—(2,666.4)843.7
Interest Rate Contracts—222.0—(144.3)77.7
Other Financial Derivatives(1)—0.3——0.3
Total Derivatives Assets—3,732.4—(2,810.7)921.7
Other Liabilities
Derivative Liabilities
Foreign Exchange Contracts—3,187.5—(1,826.7)1,360.8
Interest Rate Contracts—431.8—(5.9)425.9
Other Financial Derivatives(2)——34.8(33.3)1.5
Total Derivative Liabilities$—$3,619.3$34.8$(1,865.9)$1,788.2

Note: Northern Trust has elected to net derivative assets and liabilities when legally enforceable master netting arrangements or similar agreements exist between Northern Trust and the counterparty. As of December 31, 2022, derivative assets and liabilities shown above also include reductions of $1,140.2 million and $195.3 million, respectively, as a result of cash collateral received from and deposited with derivative counterparties.

(1) This line consists of total return swap contracts.

(2) This line consists of swaps related to the sale of certain Visa Class B common shares.

The following table presents the changes in Level 3 liabilities for the years ended December 31, 2023 and 2022.

TABLE 53: CHANGES IN LEVEL 3 LIABILITIES

LEVEL 3 LIABILITIESSWAPS RELATED TO SALE OF CERTAIN VISA CLASS B COMMON SHARES
(In Millions)20232022
Fair Value at January 1$34.8$37.5
Total (Gains) Losses:
Included in Earnings(1)18.922.6
Purchases, Issues, Sales, and Settlements
Settlements(28.3)(25.3)
Fair Value at December 31$25.4$34.8
Unrealized Losses (Gains) Included in Earnings Related to Financial Instruments Held at December 31(1)$15.4$16.6

(1) Gains (losses) are recorded in Other Operating Income on the consolidated statements of income.

Carrying values of assets and liabilities that are not measured at fair value on a recurring basis may be adjusted to fair value in periods subsequent to their initial recognition, for example, to record an impairment of an asset. GAAP requires entities to separately disclose these subsequent fair value measurements and to classify them under the fair value hierarchy.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 113

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Assets measured at fair value on a nonrecurring basis at December 31, 2023 and 2022, all of which were categorized as Level 3 under the fair value hierarchy, were comprised of nonaccrual loans whose values were based on real estate and other available collateral, and of OREO properties.

Fair values of real estate loan collateral were estimated using a market approach typically supported by third-party valuations and property-specific fees and taxes. As of December 31, 2023, the fair values of real estate loan collateral were subject to adjustments to reflect management’s judgment as to realizable value and consisted of discount factors ranging from 0.0% to 20.0% with a weighted average based on fair values of 2.0%. As of December 31, 2022, the fair value of real estate loan collateral consisted of discount factors ranging from 15.0% to 20.0% with a weighted average based on fair values of 17.2%. Other loan collateral, which typically consists of accounts receivable, inventory and equipment, is valued using a market approach adjusted for asset-specific characteristics and in limited instances third-party valuations are used. OREO assets are carried at the lower of cost or fair value less estimated costs to sell, with fair value typically based on third-party appraisals.

Collateral-dependent nonaccrual loans that have been adjusted to fair value totaled $43.3 million and $6.6 million at December 31, 2023 and 2022, respectively.

The following table presents the fair values of Northern Trust’s Level 3 assets that were measured at fair value on a nonrecurring basis as of December 31, 2023 and 2022, as well as the valuation technique, significant unobservable inputs, and quantitative information used to develop the significant unobservable inputs for such assets as of such dates.

TABLE 54: LEVEL 3 NONRECURRING BASIS SIGNIFICANT UNOBSERVABLE INPUTS

DECEMBER 31, 2023
FINANCIAL INSTRUMENTFAIR VALUE(1)VALUATION TECHNIQUEUNOBSERVABLE INPUTSINPUT VALUESWEIGHTED-AVERAGE INPUT VALUES
Loans$43.3 millionMarket ApproachDiscount factor applied to real estate collateral-dependent loans to reflect realizable value0.0%–20.0%2.0%

(1) Includes real estate collateral-dependent loans and other collateral-dependent loans.

DECEMBER 31, 2022
FINANCIAL INSTRUMENTFAIR VALUE(1)VALUATION TECHNIQUEUNOBSERVABLE INPUTSINPUT VALUESWEIGHTED-AVERAGE INPUT VALUES
Loans$6.6 millionMarket ApproachDiscount factor applied to real estate collateral-dependent loans to reflect realizable value15.0%–20.0%17.2%

(1) Includes real estate collateral-dependent loans and other collateral-dependent loans.

114 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following tables presents the book value and estimated fair value, including the fair value hierarchy level, of Northern Trust’s financial instruments that are not measured at fair value on the consolidated balance sheets as of December 31, 2023 and 2022. The following tables exclude those items measured at fair value on a recurring basis.

TABLE 55: FAIR VALUE OF FINANCIAL INSTRUMENTS

DECEMBER 31, 2023
ESTIMATED FAIR VALUE
(In Millions)BOOK VALUETOTAL ESTIMATED FAIR VALUELEVEL 1LEVEL 2LEVEL 3
FINANCIAL ASSETS
Cash and Due from Banks$4,791.5$4,791.5$4,791.5$—$—
Federal Reserve and Other Central Bank Deposits34,326.234,326.2—34,326.2—
Interest-Bearing Deposits with Banks1,939.01,939.0—1,939.0—
Securities Purchased under Agreements to Resell784.7784.7—784.7—
Debt Securities - Held to Maturity26,221.724,473.0—24,473.0—
Loans
Held for Investment47,438.347,598.3——47,598.3
Other Assets1,476.61,458.086.11,371.9—
FINANCIAL LIABILITIES
Deposits116,164.0116,207.6—116,207.6—
Federal Funds Purchased3,045.43,045.4—3,045.4—
Securities Sold Under Agreements to Repurchase784.7784.7—784.7—
Other Borrowings6,567.86,607.4—6,607.4—
Senior Notes2,773.22,798.1—2,798.1—
Long-Term Debt4,065.04,186.8—4,186.8—
Unfunded Commitments178.8178.8—178.8—
Other Liabilities74.974.9——74.9
DECEMBER 31, 2022
ESTIMATED FAIR VALUE
(In Millions)BOOK VALUETOTAL ESTIMATED FAIR VALUELEVEL 1LEVEL 2LEVEL 3
FINANCIAL ASSETS
Cash and Due from Banks$4,654.2$4,654.2$4,654.2$—$—
Federal Reserve and Other Central Bank Deposits40,030.440,030.4—40,030.4—
Interest-Bearing Deposits with Banks1,941.11,941.1—1,941.1—
Federal Funds Sold32.032.0—32.0—
Securities Purchased under Agreements to Resell1,070.31,070.3—1,070.3—
Debt Securities - Held to Maturity25,036.122,879.350.022,829.3—
Loans
Held for Investment42,749.042,636.5——42,636.5
Other Assets1,476.91,460.494.71,365.7—
FINANCIAL LIABILITIES
Deposits(1)123,932.1123,926.9—123,926.9—
Federal Funds Purchased1,896.91,896.9—1,896.9—
Securities Sold Under Agreements to Repurchase567.2567.2—567.2—
Other Borrowings7,592.37,592.8—7,592.8—
Senior Notes2,724.22,729.8—2,729.8—
Long-Term Debt2,066.22,110.7—2,110.7—
Unfunded Commitments218.9218.9—218.9—
Other Liabilities73.273.2——73.2

(1) Northern Trust reclassified its leveling interpretation on client deposits, moving Demand, Noninterest-Bearing, Savings, Money Market and Other Interest-Bearing from Level 1 to Level 2 during 2023, and collapsed client deposits into one row.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 115

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 4 – Securities

Available for Sale Debt Securities. The following tables provide the amortized cost, fair values, and remaining maturities of AFS debt securities.

TABLE 56: RECONCILIATION OF AMORTIZED COST TO FAIR VALUE OF AVAILABLE FOR SALE DEBT SECURITIES

DECEMBER 31, 2023
(In Millions)AMORTIZED COSTGROSS UNREALIZED GAINSGROSS UNREALIZED LOSSESFAIR VALUE
U.S. Government$3,681.5$2.2$61.5$3,622.2
Obligations of States and Political Subdivisions315.8—20.0295.8
Government Sponsored Agency11,744.39.0200.311,553.0
Non-U.S. Government284.8—20.4264.4
Corporate Debt287.50.18.1279.5
Covered Bonds356.8—9.7347.1
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds3,013.80.1114.02,899.9
Other Asset-Backed3,061.01.6100.02,962.6
Commercial Mortgage-Backed913.50.248.4865.3
Total$23,659.0$13.2$582.4$23,089.8
DECEMBER 31, 2022
(In Millions)AMORTIZED COSTGROSS UNREALIZED GAINSGROSS UNREALIZED LOSSESFAIR VALUE
U.S. Government$2,837.7$2.5$92.8$2,747.4
Obligations of States and Political Subdivisions817.8—30.2787.6
Government Sponsored Agency11,892.54.3351.611,545.2
Non-U.S. Government387.6—27.6360.0
Corporate Debt1,774.30.226.91,747.6
Covered Bonds403.10.314.7388.7
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds2,645.80.3166.72,479.4
Other Asset-Backed5,544.3—288.15,256.2
Commercial Mortgage-Backed1,456.90.169.21,387.8
Total$27,760.0$7.7$1,067.8$26,699.9

TABLE 57: REMAINING MATURITY OF AVAILABLE FOR SALE DEBT SECURITIES

DECEMBER 31, 2023ONE YEAR OR LESSONE TO FIVE YEARSFIVE TO TEN YEARSOVER TEN YEARSTOTAL
(In Millions)Amortized CostFair ValueAmortized CostFair ValueAmortized CostFair ValueAmortized CostFair ValueAmortized CostFair Value
U.S. Government$198.3$197.8$3,483.2$3,424.4$—$—$—$—$3,681.5$3,622.2
Obligations of States and Political Subdivisions——113.2106.8202.6189.0——315.8295.8
Government Sponsored Agency2,384.32,357.05,330.25,237.53,327.03,282.8702.8675.711,744.311,553.0
Non-U.S. Government67.966.1216.9198.3————284.8264.4
Corporate Debt105.2103.8182.3175.7————287.5279.5
Covered Bonds90.389.2266.5257.9————356.8347.1
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds280.3277.82,665.82,567.167.755.0——3,013.82,899.9
Other Asset-Backed218.1212.82,724.22,631.1107.8107.810.910.93,061.02,962.6
Commercial Mortgage-Backed41.939.3736.0708.2135.6117.8——913.5865.3
Total$3,386.3$3,343.8$15,718.3$15,307.0$3,840.7$3,752.4$713.7$686.6$23,659.0$23,089.8

Note: Mortgage-backed and asset-backed securities are included in the above table taking into account anticipated future prepayments.

116 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Available for Sale Debt Securities with Unrealized Losses. The following table provides information regarding AFS debt securities with no credit losses reported that had been in a continuous unrealized loss position for less than twelve months and for twelve months or longer as of December 31, 2023 and 2022.

TABLE 58: AVAILABLE FOR SALE DEBT SECURITIES IN UNREALIZED LOSS POSITION WITH NO CREDIT LOSSES REPORTED

AS OF DECEMBER 31, 2023LESS THAN 12 MONTHS12 MONTHS OR LONGERTOTAL
(In Millions)FAIR VALUEUNREALIZED LOSSESFAIR VALUEUNREALIZED LOSSESFAIR VALUEUNREALIZED LOSSES
U.S. Government$—$—$3,364.7$61.5$3,364.7$61.5
Obligations of States and Political Subdivisions87.85.9208.014.1295.820.0
Government Sponsored Agency331.011.59,486.6188.89,817.6200.3
Non-U.S. Government——264.520.4264.520.4
Corporate Debt4.40.1143.02.1147.42.2
Covered Bonds——213.29.7213.29.7
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds——2,477.0105.82,477.0105.8
Other Asset-Backed19.82.01,998.798.02,018.5100.0
Commercial Mortgage-Backed60.04.6776.643.8836.648.4
Total$503.0$24.1$18,932.3$544.2$19,435.3$568.3

Note: Three corporate debt AFS securities with a fair value of $98.4 million and unrealized losses of $5.9 million and one sub-sovereign, supranational and non-U.S. agency bonds AFS security with a fair value of $71.0 million and unrealized loss of $8.2 million have been excluded from the table above as these AFS securities have a $1.2 million allowance for credit losses reported as of December 31, 2023. Refer to the discussion further below and Note 6, “Allowance for Credit Losses” for further information.

AS OF DECEMBER 31, 2022LESS THAN 12 MONTHS12 MONTHS OR LONGERTOTAL
(In Millions)FAIR VALUEUNREALIZED LOSSESFAIR VALUEUNREALIZED LOSSESFAIR VALUEUNREALIZED LOSSES
U.S. Government$1,123.6$64.1$343.1$28.7$1,466.7$92.8
Obligations of States and Political Subdivisions160.016.8120.613.4280.630.2
Government Sponsored Agency7,631.4262.12,737.789.510,369.1351.6
Non-U.S. Government235.417.3124.610.3360.027.6
Corporate Debt427.314.6130.32.8557.617.4
Covered Bonds238.013.542.81.2280.814.7
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds1,305.474.4807.183.22,112.5157.6
Other Asset-Backed3,873.4217.51,247.670.65,121.0288.1
Commercial Mortgage-Backed670.947.4215.621.8886.569.2
Total$15,665.4$727.7$5,769.4$321.5$21,434.8$1,049.2

Note: Three corporate debt AFS securities with a fair value of $93.8 million and unrealized losses of $9.5 million and one sub-sovereign, supranational and non-U.S. agency bonds AFS security with a fair value of $68.3 million and unrealized loss of $9.1 million have been excluded from the table above as these AFS securities have a $1.3 million allowance for credit losses reported as of December 31, 2022. Refer to the discussion further below and Note 6, “Allowance for Credit Losses” for further information.

As of December 31, 2023, 898 AFS debt securities with a combined fair value of $19.4 billion were in an unrealized loss position without an allowance for credit losses, with their unrealized losses totaling $568.3 million. As of December 31, 2023, unrealized losses in AFS debt securities of $200.3 million, $105.8 million, and $100.0 million related to government sponsored agency, sub-sovereign, supranational and non-U.S. agency bonds, and other asset-backed, respectively, which are primarily attributable to lower yields and tighter spreads.

As of December 31, 2022, 1,030 AFS debt securities with a combined fair value of $21.4 billion were in an unrealized loss position without an allowance for credit losses, with their unrealized losses totaling $1.0 billion. As of December 31, 2022, unrealized losses in AFS debt securities of $351.6 million, $288.1 million, and $157.6 million related to government-sponsored agency, other asset-backed, and sub-sovereign, supranational and non-U.S. agency bonds, respectively, which are primarily attributable to changes in market interest rates and credit spreads since their purchase.

AFS debt securities impairment reviews are conducted quarterly to identify and evaluate securities that have indications of possible credit losses. A determination as to whether a security’s decline in market value is related to credit impairment takes into consideration numerous factors and the relative significance of any single factor can vary by security. Factors Northern Trust considers in determining whether impairment is credit-related include, but are not limited to, the severity of the impairment; the cause of the impairment; the financial condition and near-term prospects of the issuer; activity in the market of the issuer, which may indicate adverse credit conditions; Northern Trust’s intent regarding the sale of the security as of the balance sheet date; and the likelihood that Northern Trust will not be required to sell the

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 117

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

security for a period of time sufficient to allow for the recovery of the security’s amortized cost basis. For each security meeting the requirements of Northern Trust’s internal screening process, an extensive review is conducted to determine if a credit loss has occurred.

As of December 31, 2022, the Corporation intended to sell certain AFS debt securities that were in an unrealized loss position. The securities were written down to their fair value of $2.1 billion with a $213.0 million loss recognized in Investment Security Gains (Losses), net on the consolidated statements of income for the period ended December 31, 2022. In January 2023, the securities were subsequently sold, resulting in an incremental $6.9 million gain upon sale. In November 2023, the Corporation sold an additional $3.2 billion of AFS securities with a fair value of $3.0 billion, which resulted in a $176.4 million loss recognized in Investment Securities Gains (Losses), net on the consolidated statements of income for the period ended December 31, 2023.

There was a $1.2 million allowance for credit losses for AFS securities for the year ended December 31, 2023, primarily for corporate debt securities, reflecting a $0.1 million release from December 31, 2022. There was a $1.3 million allowance for credit losses for AFS securities for the year ended December 31, 2022, primarily for corporate debt securities, reflecting an increase of $1.3 million from December 31, 2021. The process for identifying credit losses for AFS securities is based on the best estimate of cash flows to be collected from the security, discounted using the security’s effective interest rate. If the present value of the expected cash flows is found to be less than the current amortized cost of the security, an allowance for credit losses is generally recorded equal to the difference between the two amounts, limited to the amount the amortized cost basis exceeds the fair value of the security. For additional information, please refer to Note 6, “Allowance for Credit Losses.”

Held to Maturity Debt Securities. The following tables provide the amortized cost, fair values and remaining maturities of held to maturity (HTM) debt securities.

TABLE 59: RECONCILIATION OF AMORTIZED COST TO FAIR VALUES OF HELD TO MATURITY DEBT SECURITIES

DECEMBER 31, 2023
(In Millions)AMORTIZED COSTGROSS UNREALIZED GAINSGROSS UNREALIZED LOSSESFAIR VALUE
U.S. Government$—$—$—$—
Obligations of States and Political Subdivisions2,563.90.572.42,492.0
Government Sponsored Agency9,355.32.31,012.48,345.2
Non-U.S. Government4,789.10.290.74,698.6
Corporate Debt646.1—28.2617.9
Covered Bonds2,208.60.3108.32,100.6
Certificates of Deposit585.1—0.7584.4
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds5,245.53.2294.94,953.8
Other Asset-Backed214.20.40.2214.4
Commercial Mortgage-Backed37.6—0.836.8
Other576.3—147.0429.3
Total$26,221.7$6.9$1,755.6$24,473.0
DECEMBER 31, 2022
(In Millions)AMORTIZED COSTGROSS UNREALIZED GAINSGROSS UNREALIZED LOSSESFAIR VALUE
U.S. Government$50.0$—$—$50.0
Obligations of States and Political Subdivisions2,565.3—149.82,415.5
Government Sponsored Agency9,407.7—1,076.08,331.7
Non-U.S. Government3,234.00.1133.83,100.3
Corporate Debt713.3—45.4667.9
Covered Bonds2,530.30.3158.72,371.9
Certificates of Deposit35.9——35.9
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds5,703.31.0436.15,268.2
Other Asset-Backed263.7—1.0262.7
Other532.6—157.4375.2
Total$25,036.1$1.4$2,158.2$22,879.3
118 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

As of December 31, 2023, the $26.2 billion HTM debt securities portfolio had unrealized losses of $1.0 billion and $294.9 million related to government sponsored agency and sub-sovereign, supranational and non-U.S. agency bonds, respectively, which are primarily attributable to lower yields and tighter spreads. As of December 31, 2022, the $25.0 billion HTM debt securities portfolio had unrealized losses of $1.1 billion and $436.1 million related to government-sponsored agency and sub-sovereign, supranational and non-U.S. agency bonds, respectively, which are primarily attributable to changes in overall market interest rates and credit spreads since their purchase.

TABLE 60: REMAINING MATURITY OF HELD TO MATURITY DEBT SECURITIES

DECEMBER 31, 2023ONE YEAR OR LESSONE TO FIVE YEARSFIVE TO TEN YEARSOVER TEN YEARSTOTAL
(In Millions)Amortized CostFair ValueAmortized CostFair ValueAmortized CostFair ValueAmortized CostFair ValueAmortized CostFair Value
U.S. Government$—$—$—$—$—$—$—$—$—$—
Obligations of States and Political Subdivisions45.745.31,100.71,076.81,126.31,090.8291.2279.12,563.92,492.0
Government Sponsored Agency984.3885.43,381.43,037.63,248.62,905.41,741.01,516.89,355.38,345.2
Non-U.S. Government3,376.03,374.31,379.31,294.733.829.6——4,789.14,698.6
Corporate Debt276.8269.5353.7335.215.613.2——646.1617.9
Covered Bonds345.4342.11,623.11,542.5240.1216.0——2,208.62,100.6
Certificates of Deposit585.1584.4——————585.1584.4
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds1,080.81,055.64,159.03,893.65.74.6——5,245.54,953.8
Other Asset-Backed14.714.7102.0102.197.597.6——214.2214.4
Commercial Mortgage-Backed——37.636.8————37.636.8
Other47.846.7319.0287.930.723.5178.871.2576.3429.3
Total$6,756.6$6,618.0$12,455.8$11,607.2$4,798.3$4,380.7$2,211.0$1,867.1$26,221.7$24,473.0

Note: Mortgage-backed and asset-backed securities are included in the above table taking into account anticipated future prepayments.

HTM debt securities consist of securities that management intends to, and Northern Trust has the ability to, hold until maturity. During the year ended December 31, 2022, for capital management purposes, the Corporation transferred government sponsored agency and obligations of states and political subdivisions securities that had a fair value of $6.6 billion from the AFS to HTM classification, all of which were transferred in the third quarter of 2022. Upon transfer of a debt security from the AFS to HTM classification, the amortized cost is reset to fair value. Any net unrealized gain or loss at the date of transfer will remain in AOCI and be amortized into Net Interest Income over the remaining life of the securities using the effective interest method. The amortization of amounts retained in AOCI will offset the effect on interest income of the amortization of the premium or discount resulting from transferring the securities at fair value.

Credit Quality Indicators. The following table provides the amortized cost of HTM debt securities by credit rating.

TABLE 61: AMORTIZED COST OF HELD TO MATURITY DEBT SECURITIES BY CREDIT RATING

AS OF DECEMBER 31, 2023
($ In Millions)AAAAAABBBNOT RATEDTOTAL
U.S. Government$—$—$—$—$—$—
Obligations of States and Political Subdivisions954.71,609.0——0.22,563.9
Government Sponsored Agency9,355.3————9,355.3
Non-U.S. Government813.31,179.62,463.3332.9—4,789.1
Corporate Debt2.1302.6341.4——646.1
Covered Bonds2,208.6————2,208.6
Certificates of Deposit545.9———39.2585.1
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds4,047.91,166.530.01.1—5,245.5
Other Asset-Backed214.2————214.2
Commercial Mortgage-Backed37.6————37.6
Other54.8———521.5576.3
Total$18,234.4$4,257.7$2,834.7$334.0$560.9$26,221.7
Percent of Total70%16%11%1%2%100%
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2022
($ In Millions)AAAAAABBBNOT RATEDTOTAL
U.S. Government$50.0$—$—$—$—$50.0
Obligations of States and Political Subdivisions926.81,638.5———2,565.3
Government Sponsored Agency9,407.7————9,407.7
Non-U.S. Government762.2926.51,223.0322.3—3,234.0
Corporate Debt2.1305.7405.5——713.3
Covered Bonds2,530.3————2,530.3
Certificates of Deposit————35.935.9
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds4,171.31,502.028.91.1—5,703.3
Other Asset-Backed263.7————263.7
Other65.8———466.8532.6
Total$18,179.9$4,372.7$1,657.4$323.4$502.7$25,036.1
Percent of Total73%17%7%1%2%100%

Credit quality indicators are metrics that provide information regarding the relative credit risk of debt securities. Northern Trust maintains a high quality debt securities portfolio, with 97% of the HTM portfolio composed of securities rated A or higher as of both December 31, 2023 and 2022. The remaining HTM debt securities portfolio was composed of 1% rated BBB at both December 31, 2023 and 2022, and 2% not rated by Moody’s, S&P Global, or Fitch Ratings at both December 31, 2023 and 2022. Securities not explicitly rated were grouped where possible under the credit rating of the issuer of the security.

Investment Security Gains and Losses. There was a $176.4 million available for sale debt security loss arising from a repositioning of the portfolio during the fourth quarter of 2023 and a $6.9 million gain upon sale of certain available for sale debt securities in the first quarter of 2023. During the fourth quarter of 2022, losses of $213.0 million were recognized in conjunction with the intent to sell certain AFS debt securities which is included in the tables below. Proceeds of $5.2 billion, $138.7 million and $116.7 million in 2023, 2022 and 2021, respectively, from the sale of debt securities resulted in the following pre-tax Investment Security Gains (Losses), net shown in the following tables.

TABLE 62: INVESTMENT SECURITY GAINS AND LOSSES

DECEMBER 31,
(In Millions)202320222021
Gross Realized Debt Securities Gains$10.5$—$1.4
Gross Realized Debt Securities Losses(180.0)(214.0)(1.7)
Investment Security Gains (Losses), net(1)$(169.5)$(214.0)$(0.3)

(1) $214.0 million of Investment Security Gains (Losses), net includes a $213.0 million loss recognized in 2022 in conjunction with the intent to sell certain AFS debt securities.

TABLE 63: INVESTMENT SECURITY GAINS AND LOSSES BY SECURITY TYPE

DECEMBER 31,
(In Millions)202320222021
U.S. Governments$(29.9)$—$—
Obligations of States and Political Subdivisions9.8(95.8)—
Government Sponsored Agency(73.2)——
Corporate Debt(7.6)(67.3)(0.3)
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds(9.1)——
Other Asset-Backed(58.6)(17.1)—
Commercial Mortgage-Backed(0.9)(33.8)—
Investment Security Gains (Losses), net(1)$(169.5)$(214.0)$(0.3)

(1) $214.0 million of Investment Security Gains (Losses), net includes a $213.0 million loss recognized in 2022 in conjunction with the intent to sell certain AFS debt securities.

120 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 5 – Loans

Amounts outstanding for Loans, by segment and class, are shown in the following table.

TABLE 64: LOANS

DECEMBER 31,
(In Millions)20232022
Commercial
Commercial and Institutional(1)$11,555.3$12,415.0
Commercial Real Estate5,134.24,773.0
Non-U.S.(1)2,778.53,131.1
Other5,944.81,316.5
Total Commercial25,412.821,635.6
Personal
Private Client14,360.014,119.0
Residential Real Estate6,327.16,413.5
Non-U.S.428.8510.0
Other1,088.3215.2
Total Personal22,204.221,257.7
Total Loans$47,617.0$42,893.3

(1) Commercial and institutional and commercial-non-U.S. combined include $4.5 billion and $5.6 billion of private equity capital call finance loans at December 31, 2023 and 2022, respectively.

Residential real estate loans consist of traditional first lien mortgages and equity credit lines that generally require a loan-to-collateral value ratio of 65% to 80% at inception. Northern Trust’s equity credit line products generally have draw periods of up to 10 years and a balloon payment of any outstanding balance is due at maturity. Payments are interest-only with variable interest rates. Northern Trust does not offer equity credit lines that include an option to convert the outstanding balance to an amortizing payment loan. As of December 31, 2023 and 2022, equity credit lines totaled $228.7 million and $248.6 million, respectively. Equity credit lines for which first liens were held by Northern Trust represented 96% and 98% of the total equity credit lines as of December 31, 2023 and 2022, respectively.

Included within the other commercial, non-U.S. commercial, and other personal classes are short duration advances, primarily related to the processing of custodied client investments, totaling $8.4 billion and $2.9 billion at December 31, 2023 and 2022, respectively. The $8.4 billion short duration advances at December 31, 2023 primarily reflected higher levels of year-end trading and settlement activity. Demand deposit overdrafts reclassified as loan balances, primarily in personal-other, totaled $12.1 million and $24.4 million at December 31, 2023 and 2022, respectively. There were no loans classified as held for sale on either December 31, 2023 or December 31, 2022. Loans classified as held for sale are recorded at the lower of cost or fair value. There was a $2.5 million commercial real estate loan sold during the year ended December 31, 2023. There were $11.2 million of loans sold during the year ended December 31, 2022, which were composed of residential real estate and commercial and institutional loans.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Credit Quality Indicators. Credit quality indicators are statistics, measurements or other metrics that provide information regarding the relative credit risk of loans. Northern Trust uses a variety of credit quality indicators to assess the credit risk of loans at the segment, class, and individual credit exposure levels.

As part of its credit process, Northern Trust utilizes an internal borrower risk rating system to support identification, approval, and monitoring of credit risk. Borrower risk ratings are used in credit underwriting and management reporting. Risk ratings are used for ranking the credit risk of borrowers and their probability of default. Each borrower is rated using one of a number of ratings models, which consider both quantitative and qualitative factors. The ratings models vary among classes of loans in order to capture the unique risk characteristics inherent within each particular type of credit exposure. Provided below are the more significant performance indicator attributes considered within Northern Trust’s borrower rating models, by loan class:

  • Commercial and Institutional: leverage, profit margin, liquidity, asset size and capital levels;

  • Commercial Real Estate: debt service coverage, loan-to-value ratio, leasing status and guarantor support;

  • Commercial-Other: leverage, profit margin, liquidity, asset size and capital levels;

  • Non-U.S.: leverage, profit margin, liquidity, return on assets and capital levels;

  • Residential Real Estate: payment history, credit bureau scores and loan-to-value ratio;

  • Private Client: cash-flow-to-debt and net worth ratios, leverage and liquidity; and

  • Personal-Other: cash-flow-to-debt and net worth ratios.

While the criteria vary by model, the objective is for the borrower ratings to be consistent in both the measurement and ranking of risk. Each model is calibrated to a master rating scale to support this consistency. Ratings for borrowers not in default range from “1” for the strongest credits to “7” for the weakest non-defaulted credits. Ratings of “8” or “9” are used for defaulted borrowers. Borrower risk ratings are monitored and are revised when events or circumstances indicate a change is required. Risk ratings are generally validated at least annually.

Loans in the “1 to 3” category are expected to exhibit minimal to modest probabilities of default and are characterized by borrowers having the strongest financial qualities, including above average financial flexibility, cash flows and capital levels. Borrowers assigned these ratings are anticipated to experience very little to moderate financial pressure in adverse down-cycle scenarios. As a result of these characteristics, borrowers within this category exhibit a minimal to modest likelihood of loss. Loans in the “4 to 5” category are expected to exhibit moderate to acceptable probabilities of default and are characterized by borrowers with less financial flexibility than those in the “1 to 3” category. Cash flows and capital levels are generally sufficient to allow for borrowers to meet current requirements, but have fewer financial resources to manage through economic downturns. As a result of these characteristics, borrowers within this category exhibit a moderate likelihood of loss. Loans in the watch list category have elevated credit risk profiles that are monitored through internal watch lists, and consist of credits with borrower ratings of “6 to 9.” These credits, which include all nonaccrual credits, are expected to exhibit probabilities of default, elevated risk of default, or are currently in default. Borrowers associated with these risk profiles that are not currently in default have limited financial flexibility. Cash flows and capital levels range from acceptable to potentially insufficient to meet current requirements, particularly in adverse down cycle scenarios. As a result of these characteristics, borrowers in this category exhibit an elevated to probable likelihood of loss.

Loan segment and class balances as of December 31, 2023 are provided in the following table, segregated by borrower ratings into “1 to 3,” “4 to 5” and “6 to 9” (watch list and nonaccrual status) categories by year of origination at amortized cost basis. Loans that are held for investment are reported at the principal amount outstanding, net of unearned income.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

TABLE 65: CREDIT QUALITY INDICATOR AT AMORTIZED COST BASIS BY ORIGINATION YEAR

DECEMBER 31, 2023TERM LOANSREVOLVING LOANSREVOLVING LOANS CONVERTED TO TERM LOANS
(In Millions)20232022202120202019PRIORTOTAL
Commercial
Commercial and Institutional
Risk Rating:
1 to 3 Category$443.9$534.1$668.3$78.1$137.2$409.9$4,909.8$15.0$7,196.3
4 to 5 Category801.4790.9729.5138.7120.5178.71,332.472.04,164.1
6 to 9 Category13.870.060.812.00.11.734.71.8194.9
Total Commercial and Institutional1,259.11,395.01,458.6228.8257.8590.36,276.988.811,555.3
Commercial Real Estate (CRE)
Risk Rating:
1 to 3 Category403.6389.9159.123.937.844.851.0—1,110.1
4 to 5 Category1,513.51,208.8521.0218.4252.896.0136.37.93,954.7
6 to 9 Category16.1—30.5—8.214.6——69.4
Total CRE1,933.21,598.7710.6242.3298.8155.4187.37.95,134.2
CRE Gross Charge-offs(0.7)(4.4)——————(5.1)
Non-U.S.
Risk Rating:
1 to 3 Category487.9—43.265.234.23.3760.0—1,393.8
4 to 5 Category974.70.8———150.0243.4—1,368.9
6 to 9 Category1.514.3——————15.8
Total Non-U.S.1,464.115.143.265.234.2153.31,003.4—2,778.5
Other
Risk Rating:
1 to 3 Category4,313.2———————4,313.2
4 to 5 Category1,631.6———————1,631.6
Total Other5,944.8———————5,944.8
Other Gross Charge-offs(0.6)———————(0.6)
Total Commercial10,601.23,008.82,212.4536.3590.8899.07,467.696.725,412.8
Commercial Gross Charge-offs(1.3)(4.4)——————(5.7)
Personal
Private Client
Risk Rating:
1 to 3 Category504.7140.852.367.58.7134.75,320.9168.16,397.7
4 to 5 Category290.1488.2655.1100.9158.844.75,721.5447.87,907.1
6 to 9 Category23.60.3———18.313.0—55.2
Total Private Client818.4629.3707.4168.4167.5197.711,055.4615.914,360.0
Residential Real Estate (RRE)
Risk Rating:
1 to 3 Category278.7464.0500.6373.3142.4722.4219.8—2,701.2
4 to 5 Category191.6694.9717.4686.7290.0805.3170.3—3,556.2
6 to 9 Category—10.9—0.71.643.612.9—69.7
Total RRE470.31,169.81,218.01,060.7434.01,571.3403.0—6,327.1
RRE Gross Charge-offs(0.8)————(1.0)——(1.8)
Non-U.S.
Risk Rating:
1 to 3 Category15.5—0.6——4.671.4—92.1
4 to 5 Category12.716.039.2—16.48.9236.17.4336.7
Total Non-U.S.28.216.039.8—16.413.5307.57.4428.8
Other
Risk Rating:
1 to 3 Category461.7———————461.7
4 to 5 Category626.6———————626.6
Total Other1,088.3———————1,088.3
Total Personal2,405.21,815.11,965.21,229.1617.91,782.511,765.9623.322,204.2
Personal Gross Charge-offs(0.8)————(1.0)——(1.8)
Total Loans$13,006.4$4,823.9$4,177.6$1,765.4$1,208.7$2,681.5$19,233.5$720.0$47,617.0
Total Loans Gross Charge-offs$(2.1)$(4.4)$—$—$—$(1.0)$—$—$(7.5)
2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 123

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

December 31, 2022TERM LOANSREVOLVING LOANSREVOLVING LOANS CONVERTED TO TERM LOANS
(In Millions)20222021202020192018PRIORTOTAL
Commercial
Commercial and Institutional
Risk Rating:
1 to 3 Category$753.3$1,087.5$209.8$159.3$45.9$511.3$6,032.8$17.7$8,817.6
4 to 5 Category744.1740.6300.8191.1151.4174.71,102.332.93,437.9
6 to 9 Category50.830.5—13.7——64.5—159.5
Total Commercial and Institutional1,548.21,858.6510.6364.1197.3686.07,199.650.612,415.0
CRE
Risk Rating:
1 to 3 Category318.7227.4123.6123.539.839.1113.43.0988.5
4 to 5 Category968.51,040.0637.8447.3153.0256.9181.517.53,702.5
6 to 9 Category7.722.7—49.1——2.5—82.0
Total CRE1,294.91,290.1761.4619.9192.8296.0297.420.54,773.0
Non-U.S.
Risk Rating:
1 to 3 Category991.946.2109.614.8—6.51,158.3—2,327.3
4 to 5 Category459.0————214.989.51.8765.2
6 to 9 Category0.1——23.1——15.4—38.6
Total Non-U.S.1,451.046.2109.637.9—221.41,263.21.83,131.1
Other
Risk Rating:
1 to 3 Category993.9———————993.9
4 to 5 Category322.6———————322.6
Total Other1,316.5———————1,316.5
Total Commercial5,610.63,194.91,381.61,021.9390.11,203.48,760.272.921,635.6
Personal
Private Client
Risk Rating:
1 to 3 Category395.5159.950.5313.613.418.55,352.528.26,332.1
4 to 5 Category430.3755.1192.4191.338.7160.05,728.6267.27,763.6
6 to 9 Category0.9—0.1—18.6—3.7—23.3
Total Private Client826.7915.0243.0504.970.7178.511,084.8295.414,119.0
RRE
Risk Rating:
1 to 3 Category871.6666.7567.7168.1102.9750.8128.47.93,264.1
4 to 5 Category354.3656.7597.6290.0170.9838.2180.41.03,089.1
6 to 9 Category—6.81.51.13.735.911.3—60.3
Total RRE1,225.91,330.21,166.8459.2277.51,624.9320.18.96,413.5
Non-U.S.
Risk Rating:
1 to 3 Category3.03.7——4.62.3124.6—138.2
4 to 5 Category24.240.3—21.33.22.9272.07.8371.7
6 to 9 Category—————0.1——0.1
Total Non-U.S.27.244.0—21.37.85.3396.67.8510.0
Other
Risk Rating:
1 to 3 Category190.8———————190.8
4 to 5 Category24.4———————24.4
Total Other215.2———————215.2
Total Personal2,295.02,289.21,409.8985.4356.01,808.711,801.5312.121,257.7
Total Loans$7,905.6$5,484.1$2,791.4$2,007.3$746.1$3,012.1$20,561.7$385.0$42,893.3

Past Due Status. Past due status is based on the length of time from the contractual due date a principal or interest payment has been past due. For disclosure purposes, loans that are 29 days past due or less are reported as current. The following table provides balances and delinquency status of accrual and nonaccrual loans by segment and class, as well as the other real estate owned and nonaccrual asset balances, as of December 31, 2023 and 2022.

124 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

TABLE 66: DELINQUENCY STATUS

ACCRUALNONACCRUAL WITH NO ALLOWANCE
(In Millions)CURRENT30 – 59 DAYS PAST DUE60 – 89 DAYS PAST DUE90 DAYS OR MORE PAST DUETOTAL ACCRUALNONACCRUALTOTAL LOANS
December 31, 2023
Commercial
Commercial and Institutional$11,374.6$163.7$0.7$—$11,539.0$16.3$11,555.3$4.1
Commercial Real Estate5,123.74.46.1—5,134.2—5,134.2—
Non-U.S.2,778.5———2,778.5—2,778.5—
Other5,944.8———5,944.8—5,944.8—
Total Commercial25,221.6168.16.8—25,396.516.325,412.84.1
Personal
Private Client14,240.063.924.811.014,339.720.314,360.018.3
Residential Real Estate6,283.07.50.59.16,300.127.06,327.127.0
Non-U.S.428.2—0.6—428.8—428.8—
Other1,088.3———1,088.3—1,088.3—
Total Personal22,039.571.425.920.122,156.947.322,204.245.3
Total Loans$47,261.1$239.5$32.7$20.1$47,553.4$63.6$47,617.0$49.4
Other Real Estate Owned$1.5
Total Nonaccrual Assets$65.1
ACCRUALNONACCRUAL WITH NO ALLOWANCE
(In Millions)CURRENT30 – 59 DAYS PAST DUE60 – 89 DAYS PAST DUE90 DAYS OR MORE PAST DUETOTAL ACCRUALNONACCRUALTOTAL LOANS
December 31, 2022
Commercial
Commercial and Institutional$12,353.7$40.2$3.0$0.7$12,397.6$17.4$12,415.0$4.4
Commercial Real Estate4,761.51.3——4,762.810.24,773.06.2
Non-U.S.3,131.1———3,131.1—3,131.1—
Other1,316.5———1,316.5—1,316.5—
Total Commercial21,562.841.53.00.721,608.027.621,635.610.6
Personal
Private Client13,843.5192.329.953.314,119.0—14,119.0—
Residential Real Estate6,373.29.612.30.16,395.218.36,413.518.3
Non-U.S509.9——0.1510.0—510.0—
Other215.2———215.2—215.2—
Total Personal20,941.8201.942.253.521,239.418.321,257.718.3
Total Loans$42,504.6$243.4$45.2$54.2$42,847.4$45.9$42,893.3$28.9
Other Real Estate Owned$—
Total Nonaccrual Assets$45.9

Interest income that would have been recorded for nonaccrual loans and leases in accordance with their original terms was $3.4 million in 2023, $4.1 million in 2022, and $4.6 million in 2021.

Northern Trust may obtain physical possession of real estate via foreclosure on an in-substance repossession. As of December 31, 2023 and 2022, Northern Trust held foreclosed real estate properties with an immaterial carrying value for both years as a result of obtaining physical possession. In addition, as of December 31, 2023 and 2022, Northern Trust had loans with a carrying value of $3.5 million and $1.1 million, respectively, for which formal foreclosure proceedings were in process.

Loan Modifications to Borrowers Experiencing Financial Difficulty (After the Adoption of Accounting Standards Update No. 2022-02)

The following table shows the amortized cost basis of loan modifications provided to financially distressed borrowers that impacted the respective cash flows of the underlying loans as of December 31, 2023, disaggregated by relevant class of financing receivable and type of modification provided.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

TABLE 67: LOAN MODIFICATIONS MADE TO BORROWERS EXPERIENCING FINANCIAL DIFFICULTY

YEAR ENDED DECEMBER 31, 2023
($ In Millions)LOAN MODIFICATION DETAILAMORTIZED COST BASIS% OF TOTAL SEGMENT
Commercial(1)
Commercial and InstitutionalTerm extension$16.70.14%
Commercial Real EstatePrincipal and/or interest deferral——
Commercial Real EstateCombination of principal and/or interest deferral and term extension——
Total Commercial$16.70.07%
Personal(1)
Private ClientTerm extension$——%
Private ClientPrincipal and/or interest deferral18.30.13
Residential Real EstatePrincipal and/or interest deferral1.00.02
Residential Real EstateInterest rate concession——
Residential Real EstateCombination of principal and/or interest deferral and term extension4.70.07
Total Personal$24.00.11%
Total Loans$40.70.09%

(1) Included are financially distressed modifications for which the respective loans had no amortized cost basis as of December 31, 2023 due to pay-downs or charge-offs.

The following table describes the financial effect of the modifications made to borrowers experiencing financial difficulty.

TABLE 68: FINANCIAL EFFECT OF MODIFICATIONS MADE TO BORROWERS EXPERIENCING FINANCIAL DIFFICULTY

FINANCIAL EFFECT
PRINCIPAL AND INTEREST DEFERRAL
Commercial
Commercial Real EstateNorthern Trust provided a weighted average of 6 months payment deferrals to borrowers for total deferred principal and interest of $32.5 million.
Personal
Residential Real EstateNorthern Trust provided a weighted average of 14 months payment deferrals to borrowers for immaterial principal and interest deferral amounts.
Private ClientNorthern Trust provided payment deferrals to borrowers until collateral sale is executed for total principal and interest of $18.9 million.
TERM EXTENSION
Commercial
Commercial and InstitutionalNorthern Trust provided weighted average term extension of 12 months.
Commercial Real EstateNorthern Trust provided weighted average term extension of 6 months.
Personal
Residential Real EstateNorthern Trust provided weighted average term extension of 9 months.
Private ClientNorthern Trust provided weighted average term extension of 60 months.
INTEREST RATE CONCESSION
Personal
Residential Real EstateNorthern Trust provided a 2% reduction in the weighted average contractual interest rates.

The effectiveness of Northern Trust’s modification efforts is measured by the loans’ respective past-due status under the modified terms as of the end of the period. Of the loans that were modified since the adoption of ASU 2022-02 as of January 1, 2023, and were not performing in accordance with their modified terms and considered past due for purposes of these disclosures as of December 31, 2023, were $4.7 million 30-89 days past due and $16.2 million 90 days and greater past due. As of December 31, 2023, Northern Trust charged-off $2.0 million related to modifications to borrowers experiencing financial difficulty that had been processed since the adoption of ASU 2022-02.

There were no undrawn loan commitments or standby letters of credit issued to financially distressed borrowers for which Northern Trust had modified the payment terms of the loans as of December 31, 2023.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Troubled Debt Restructurings (Prior to the Adoption of Accounting Standard Update No. 2022-02)

Prior to January 1, 2023, a loan that was modified as a concession by Northern Trust or a bankruptcy court resulting from the debtor’s financial difficulties was referred to as a troubled debt restructuring (TDR). All TDRs were reported starting in the calendar year of their restructuring. In subsequent years, a TDR may cease being reported if the loan was modified at a market rate and performed according to the modified terms for at least six payment periods. A loan that was modified at a below market rate returned to accrual status if it satisfied the six-payment-period performance requirement.

The expected credit loss was measured based upon the present value of expected future cash flows, discounted at the effective interest rate based on the original contractual rate. If a loan’s contractual interest rate varied based on subsequent changes in an independent factor, such as an index or rate, the loan’s effective interest rate was calculated based on the factor as it changed over the life of the loan. Northern Trust elected not to project changes in the factor for purposes of estimating expected future cash flows. Further, Northern Trust elected not to adjust the effective interest rate for prepayments. If the loan was collateral dependent, the expected loss was measured based on the fair value of the collateral at the reporting date. If the loan valuation was less than the recorded value of the loan, either an allowance was established or a charge-off was recorded for the difference. Smaller balance (individually less than $1 million) homogeneous loans were collectively evaluated. Northern Trust’s accounting policies for material nonaccrual loans was consistent across all classes of loans.

All loans with TDR modifications were evaluated for additional expected credit losses. The nature and extent of further deterioration in credit quality, including a subsequent default, was considered in the determination of an appropriate level of allowance for credit losses.

Included within nonaccrual loans were $35.3 million of nonaccrual TDRs, and $39.7 million of accrual TDRs as of December 31, 2022. There were $0.2 million of aggregate undrawn loan commitments and standby letters of credit at December 31, 2022, issued to borrowers with TDR modifications of loans.

TDR modifications involved extensions of term, deferrals of principal, interest rate concessions, and other modifications. Other modifications typically reflected other nonstandard terms which Northern Trust would not offer in non-troubled situations.

The following table provides, by segment and class, the number of TDR modifications of loans entered into during the year ended December 31, 2022, and the recorded investments and unpaid principal balances as of December 31, 2022.

TABLE 69: TROUBLED DEBT RESTRUCTURINGS

($ In Millions)LOAN MODIFICATION DETAILNUMBER OF LOANSRECORDED INVESTMENTUNPAID PRINCIPAL BALANCE
December 31, 2022
Commercial
Commercial and InstitutionalInterest rate concession, extension of term, and other modification2$0.6$0.6
Commercial Real EstateInterest rate concession and other modification131.632.5
Total Commercial332.233.1
Personal
Residential Real EstateInterest rate concession, deferrals of principal, extension of term, and other modification30.20.2
Private ClientInterest rate concession and extension of term10.40.4
Total Personal40.60.6
Total Loans7$32.8$33.7

Note: Period-end balances reflect all paydowns and charge-offs during the year.

There were no loan TDR modifications during the previous twelve-month period which subsequently had a payment default during the year ended December 31, 2022.

Note 6 – Allowance for Credit Losses

Allowance and Provision for Credit Losses. The allowance for credit losses—which represents management’s best estimate of lifetime expected credit losses related to various portfolios subject to credit risk, off-balance sheet credit exposures, and specific borrower relationships—is determined by management through a disciplined credit review process. Northern Trust measures expected credit losses of financial assets with similar risk characteristics on a collective basis. A financial asset is measured individually if it does not share similar risk characteristics with other financial assets and the related allowance is determined through an individual evaluation.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 127

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Management’s estimates utilized in establishing an appropriate level of allowance for credit losses are not dependent on any single assumption. In determining an appropriate allowance level, management evaluates numerous variables and takes into consideration past events, current conditions, and reasonable and supportable forecasts. The primary forecast provides for continued slow, but steady, economic growth, with inflation, unemployment and interest rates gradually returning to their longer-run norms. An alternative scenario is also considered, which reflects a recession that incorporates the experiences of a wider set of historical economic cycles.

The results of the credit reserve estimation methodology are reviewed quarterly by Northern Trust’s Credit Loss Reserve Committee, which receives input from Financial Risk Management, Treasury, Corporate Finance, the Economic Research Department, and each of Northern Trust’s reporting business units. The Credit Loss Reserve Committee determines the probability weights applied to each forecast approved by Northern Trust’s Macroeconomic Scenario Development Committee, and also reviews and approves qualitative adjustments to the collective allowance in line with Northern Trust’s qualitative adjustment framework.

The following table provides information regarding changes in the total allowance for credit losses.

TABLE 70: CHANGES IN THE ALLOWANCE FOR CREDIT LOSSES

2023
(In Millions)LOANSUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDITHELD TO MATURITY DEBT SECURITIESOTHER FINANCIAL ASSETSTOTAL
Balance at Beginning of Period$144.3$38.5$16.0$0.8$199.6
Charge-Offs(7.5)—(1.2)—(8.7)
Recoveries3.7———3.7
Net Recoveries (Charge-Offs)(3.8)—(1.2)—(5.0)
Provision for (Release of) Credit Losses(1)38.2(11.6)(2.1)0.124.6
Balance at End of Period$178.7$26.9$12.7$0.9$219.2

(1) The table excludes a release of credit reserves of $0.1 million for the year ended December 31, 2023 for AFS debt securities. See further detail in Note 4, “Securities.”

2022
(In Millions)LOANSUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDITHELD TO MATURITY DEBT SECURITIESOTHER FINANCIAL ASSETSTOTAL
Balance at Beginning of Period$138.4$34.1$11.2$1.0$184.7
Charge-Offs(6.0)———(6.0)
Recoveries10.2———10.2
Net Recoveries (Charge-Offs)4.2———4.2
Provision for (Release of) Credit Losses(1)1.74.44.8(0.2)10.7
Balance at End of Period$144.3$38.5$16.0$0.8$199.6

(1) The table excludes a provision for credit losses of $1.3 million for the year ended December 31, 2022 for AFS debt securities. See further detail in Note 4, “Securities.”

2021
(In Millions)LOANS AND LEASESUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDITHELD TO MATURITY DEBT SECURITIESOTHER FINANCIAL ASSETSTOTAL
Balance at Beginning of Period190.761.17.30.8259.9
Charge-Offs(0.7)———(0.7)
Recoveries7.0———7.0
Net Recoveries (Charge-Offs)6.3———6.3
Provision for (Release of) Credit Losses(58.6)(27.0)3.90.2(81.5)
Balance at End of Period$138.4$34.1$11.2$1.0$184.7
128 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Provision for Credit Losses, excluding the release of credit reserves for available for sale debt securities of $0.1 million, was a provision of $24.6 million for the year ended December 31, 2023, as compared to a $10.7 million Provision for Credit Losses, excluding the provision for available for sale debt securities of $1.3 million, for the year ended December 31, 2022. The provision for loans was primarily due to an increase in the reserve evaluated on a collective basis, which relates to pooled financial assets sharing similar risk characteristics. The increase was primarily seen in the commercial real estate portfolio, driven by an increase in the size and duration of the portfolio, weaker economic projections for the industry, methodology updates, and credit quality deterioration on a small number of loans during the year ended December 31, 2023. The release of credit reserves in undrawn loan commitments and letters of credit during the year ended December 31, 2023 is primarily in the commercial and institutional portfolio, reflecting a combination of credit quality improvements, an improved macroeconomic outlook for that segment, and methodology updates. There were net charge-offs of $5.0 million during the year ended December 31, 2023, as compared to net recoveries of $4.2 million for the year ended December 31, 2022. For further detail, please see the Allowance for the Loan Portfolio and the Allowance for Held to Maturity Debt Securities Portfolio sections below.

For credit exposure and the associated allowance related to fee receivables, please refer to Note 16, “Revenue from Contracts with Clients.” For information related to the allowance for AFS debt securities, please refer to Note 4, “Securities.” For the allowance pertaining to all other financial assets recognized at amortized cost, which include Due from Banks, Other Central Bank Deposits, Interest Bearing Deposits with Banks, and Other Assets, please refer to the Allowance for Other Financial Assets section within this footnote.

Allowance for the Loan Portfolio. The following table provides information regarding changes in the total allowance for credit losses related to loans, including undrawn loan commitments and standby letters of credit, by segment.

TABLE 71: CHANGES IN THE ALLOWANCE FOR CREDIT LOSSES RELATED TO LOANS

2023
LOANSUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDIT
(In Millions)COMMERCIALPERSONALTOTALCOMMERCIALPERSONALTOTAL
Balance at Beginning of Period$116.2$28.1$144.3$36.3$2.2$38.5
Charge-Offs(5.7)(1.8)(7.5)———
Recoveries0.23.53.7———
Net Recoveries (Charge-Offs)(5.5)1.7(3.8)———
Provision for (Release of) Credit Losses36.12.138.2(11.4)(0.2)(11.6)
Balance at End of Period$146.8$31.9$178.7$24.9$2.0$26.9
2022
LOANSUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDIT
(In Millions)COMMERCIALPERSONALTOTALCOMMERCIALPERSONALTOTAL
Balance at Beginning of Period$105.6$32.8$138.4$31.4$2.7$34.1
Charge-Offs(5.3)(0.7)(6.0)———
Recoveries2.77.510.2———
Net Recoveries (Charge-Offs)(2.6)6.84.2———
Provision for (Release of) Credit Losses13.2(11.5)1.74.9(0.5)4.4
Balance at End of Period$116.2$28.1$144.3$36.3$2.2$38.5
2021
LOANS AND LEASESUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDIT
(In Millions)COMMERCIALPERSONALTOTALCOMMERCIALPERSONALTOTAL
Balance at Beginning of Period$142.2$48.5$190.7$57.6$3.5$61.1
Charge-Offs(0.3)(0.4)(0.7)———
Recoveries0.96.17.0———
Net Recoveries (Charge-Offs)0.65.76.3———
Provision for (Release of) Credit Losses(37.2)(21.4)(58.6)(26.2)(0.8)(27.0)
Balance at End of Period$105.6$32.8$138.4$31.4$2.7$34.1
2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 129

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table provides information regarding the recorded investments in loans and the allowance for credit losses for loans and undrawn loan commitments and standby letters of credit by segment as of December 31, 2023 and 2022.

TABLE 72: RECORDED INVESTMENTS IN LOANS

DECEMBER 31, 2023DECEMBER 31, 2022
(In Millions)COMMERCIALPERSONALTOTALCOMMERCIALPERSONALTOTAL
Loans
Evaluated on an Individual Basis$33.7$62.6$96.3$63.0$46.1$109.1
Evaluated on a Collective Basis25,379.122,141.647,520.721,572.621,211.642,784.2
Total Loans25,412.822,204.247,617.021,635.621,257.742,893.3
Allowance for Credit Losses on Loans
Evaluated on an Individual Basis11.42.013.410.4—10.4
Evaluated on a Collective Basis135.429.9165.3105.828.1133.9
Allowance Assigned to Loans146.831.9178.7116.228.1144.3
Allowance for Undrawn Loan Commitments and Standby Letters of Credit
Evaluated on an Individual Basis——————
Evaluated on a Collective Basis24.92.026.936.32.238.5
Allowance Assigned to Undrawn Loan Commitments and Standby Letters of Credit24.92.026.936.32.238.5
Total Allowance Assigned to Loans and Undrawn Loan Commitments and Standby Letters of Credit$171.7$33.9$205.6$152.5$30.3$182.8

Allowance for Held to Maturity Debt Securities Portfolio. The following table provides information regarding changes in the total allowance for credit losses for HTM debt securities.

TABLE 73: CHANGES IN THE ALLOWANCE FOR CREDIT LOSSES RELATED TO HELD TO MATURITY DEBT SECURITIES

2023
(In Millions)CORPORATE DEBTNON-U.S. GOVERNMENTSUB-SOVEREIGN, SUPRANATIONAL, AND NON-U.S. AGENCY BONDSOBLIGATIONS OF STATES AND POLITICAL SUBDIVISIONS**(1)**COVERED BONDSOTHERTOTAL
Balance at Beginning of Period$1.9$3.6$4.0$1.5$0.1$4.9$16.0
Charge-Offs—————(1.2)(1.2)
Recoveries———————
Net Recoveries (Charge-Offs)—————(1.2)(1.2)
Provision for (Release of) Credit Losses(1.0)(0.1)(1.8)(0.3)—1.1(2.1)
Balance at End of Period$0.9$3.5$2.2$1.2$0.1$4.8$12.7

(1) The allowance for Obligations of States and Political Subdivisions is related to (non pre-refunded) municipal securities that do not fall under Northern Trust’s zero-loss assumption.

2022
(In Millions)CORPORATE DEBTNON-U.S. GOVERNMENTSUB-SOVEREIGN, SUPRANATIONAL, AND NON-U.S. AGENCY BONDSOBLIGATIONS OF STATES AND POLITICAL SUBDIVISIONS(1)COVERED BONDSOTHERTOTAL
Balance at Beginning of Period$1.4$1.9$3.0$—$0.1$4.8$11.2
Provision for Credit Losses0.51.71.01.5—0.14.8
Balance at End of Period$1.9$3.6$4.0$1.5$0.1$4.9$16.0

(1) The allowance for Obligations of States and Political Subdivisions is related to (non pre-refunded) municipal securities that do not fall under Northern Trust’s zero-loss assumption.

2021
(In Millions)CORPORATE DEBTNON-U.S. GOVERNMENTSUB-SOVEREIGN, SUPRANATIONAL, AND NON-U.S. AGENCY BONDSOBLIGATIONS OF STATES AND POLITICAL SUBDIVISIONSCOVERED BONDSOTHERTOTAL
Balance at Beginning of Period$0.8$0.2$1.2$—$0.1$5.0$7.3
Provision for Credit Losses0.61.71.8——(0.2)3.9
Balance at End of Period$1.4$1.9$3.0$—$0.1$4.8$11.2

Allowance for Other Financial Assets. The allowance for Other Financial Assets consists of the allowance for Due from Banks, Other Central Bank Deposits, Interest Bearing Deposits with Banks, and Other Assets. Northern Trust’s portfolio is composed mostly of institutions within the “1 to 3” internal borrower rating category and is expected to exhibit minimal to

130 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

modest likelihood of loss. The Allowance for Credit Losses related to Other Financial Assets was $0.9 million and $0.8 million as of December 31, 2023 and 2022, respectively.

Accrued Interest. Accrued interest balances are reported within Other Assets on the consolidated balance sheets. Northern Trust elected not to measure an allowance for credit losses for accrued interest receivables related to its loan and securities portfolios as its policy is to write-off uncollectible accrued interest receivable balances in a timely manner. Accrued interest is written off by reversing interest income during the period the financial asset is moved from an accrual to a nonaccrual status.

The following table provides the amount of accrued interest excluded from the amortized cost basis of the following portfolios.

TABLE 74: ACCRUED INTEREST

(In Millions)DECEMBER 31, 2023DECEMBER 31, 2022
Loans$241.7$203.1
Debt Securities
Held to Maturity72.063.2
Available for Sale129.2147.1
Other Financial Assets86.043.8
Total$528.9$457.2

Accrued interest in 2023 increased compared to 2022, primarily due to higher interest rates. The amount of accrued interest reversed through interest income for loans and securities was immaterial during the years ended 2023 and 2022.

Note 7 – Concentrations of Credit Risk

Concentrations of credit risk exist if a number of borrowers or other counterparties are engaged in similar activities and have similar economic characteristics that would cause their ability to meet contractual obligations to be similarly affected by changes in economic or other conditions. The fact that a credit exposure falls into one of these groups does not necessarily indicate that the credit has a higher than normal degree of credit risk. These groups are: banks and bank holding companies, residential real estate, and commercial real estate.

Banks and Bank Holding Companies. At December 31, 2023, on-balance sheet credit risk to banks and bank holding companies, both U.S. and non-U.S., consisted primarily of Interest-Bearing Deposits with Banks of $1.9 billion, demand balances maintained at correspondent banks of $4.7 billion and Securities Purchased under Agreements to Resell of $0.8 billion. At December 31, 2022, on-balance sheet credit risk to banks and bank holding companies, both U.S. and non-U.S., consisted primarily of Interest-Bearing Deposits with Banks of $1.9 billion, demand balances maintained at correspondent banks of $4.6 billion, and Securities Purchased under Agreements to Resell of $1.1 billion. Credit risk associated with U.S. and non-U.S. banks and bank holding companies deemed to be counterparties by Credit Risk Management is managed by the Capital Markets Credit Committee. Credit limits are established through a review process that includes an internally-prepared financial analysis, use of an internal risk rating system and consideration of external ratings from rating agencies. Northern Trust places deposits with banks that have strong internal and external credit ratings and the average life to maturity of deposits with banks is maintained on a short-term basis in order to respond quickly to changing credit conditions.

Residential Real Estate. Residential real estate loans totaled $6.3 billion at December 31, 2023 and $6.4 billion at December 31, 2022, representing 14% and 16%, respectively, of total U.S. loans. Residential real estate loans consist of traditional first lien mortgages and equity credit lines, which generally require a loan-to-collateral value ratio of 65% to 80% at inception. Revaluations of supporting collateral are obtained upon refinancing or default or when otherwise considered warranted. Collateral revaluations for mortgages are performed by independent third parties. Legally binding undrawn commitments to extend residential real estate credit, which are primarily equity credit lines, totaled $804.2 million and $783.4 million at December 31, 2023 and 2022, respectively. The table below provides additional detail regarding residential real estate loans by geographic region.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 131

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

TABLE 75: RESIDENTIAL REAL ESTATE LOANS BY GEOGRAPHIC REGION

DECEMBER 31,
(In Millions)20232022
Residential Real Estate by geographic region:
Florida$1,648.1$1,603.2
California1,463.81,508.1
Illinois640.3686.9
New York505.4498.7
Colorado344.1364.2
Texas318.7312.4
All other(1)1,406.71,440.0
Total Residential Real Estate$6,327.1$6,413.5

(1) The remainder is distributed throughout the other geographic regions within the U.S. served by Northern Trust.

Commercial Real Estate. In managing its credit exposure, management has defined a commercial real estate loan as one where: (1) the borrower’s principal business activity is the acquisition or the development of real estate for commercial purposes; (2) the principal collateral is real estate held for commercial purposes, and loan repayment is expected to flow from the operation of the property; or (3) the loan repayment is expected to flow from the sale or refinance of real estate as a normal and ongoing part of the business. Unsecured lines of credit to firms or individuals engaged in commercial real estate endeavors are included without regard to the use of loan proceeds. The commercial real estate portfolio consists of commercial mortgages and construction, acquisition and development loans extended primarily to experienced investors well known to Northern Trust. Underwriting standards generally reflect conservative loan-to-value ratios and debt service coverage requirements. Recourse to borrowers through guarantees is also generally required. Commercial mortgage financing is provided for the acquisition or refinancing of income-producing properties. Cash flows from the properties generally are sufficient to amortize the loan. These loans are primarily located in the California, Illinois, Florida, Texas, and New York markets. Construction, acquisition and development loans provide financing for commercial real estate prior to rental income stabilization. The intent is generally that the borrower will sell the project or refinance the loan through a commercial mortgage with Northern Trust or another financial institution upon completion. At December 31, 2023, legally binding commitments to extend credit and standby letters of credit to commercial real estate borrowers totaled $413.0 million and $82.1 million, respectively. At December 31, 2022, legally binding commitments to extend credit and standby letters of credit to commercial real estate borrowers totaled $449.3 million and $69.7 million, respectively.

The table below provides additional detail regarding commercial real estate loan types.

TABLE 76: COMMERCIAL REAL ESTATE LOANS

DECEMBER 31,
(In Millions)20232022
Commercial Mortgages
Office$1,035.1$1,054.0
Apartment/ Multi-family1,633.91,392.7
Retail620.9572.2
Industrial/ Warehouse687.1596.2
Other575.3548.0
Total Commercial Mortgages4,552.34,163.1
Construction, Acquisition and Development Loans581.9609.9
Total Commercial Real Estate Loans$5,134.2$4,773.0
132 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 8 – Buildings and Equipment

A summary of Buildings and Equipment is presented in the following table.

TABLE 77: BUILDINGS AND EQUIPMENT

DECEMBER 31, 2023
(In Millions)ORIGINAL COSTACCUMULATED DEPRECIATIONNET BOOK VALUE
Land and Improvements$11.5$0.3$11.2
Buildings253.1141.4111.7
Equipment536.5337.5199.0
Leasehold Improvements530.0349.7180.3
Total Buildings and Equipment$1,331.1$828.9$502.2
DECEMBER 31, 2022
(In Millions)ORIGINAL COSTACCUMULATED DEPRECIATIONNET BOOK VALUE
Land and Improvements$11.5$0.3$11.2
Buildings224.7137.787.0
Equipment499.7281.9217.8
Leasehold Improvements514.1329.6184.5
Total Buildings and Equipment$1,250.0$749.5$500.5

The charge for depreciation amounted to $115.9 million in 2023, $110.1 million in 2022, and $110.8 million in 2021 on the consolidated statements of income.

Note 9 – Lease Commitments

As of December 31, 2023, Northern Trust was obligated under a number of non-cancelable operating leases, primarily for real estate. Certain leases contain rent escalation clauses based on market indices, renewal option clauses calling for increased rentals, and rental payments based on usage. There are no restrictions imposed by any lease agreement regarding the payment of dividends, debt financing or Northern Trust entering into further lease agreements.

The components of lease costs for the years ended December 31, 2023 and 2022 were as follows.

TABLE 78: LEASE COST COMPONENTS

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)20232022
Operating Lease Cost$109.2$104.5
Variable Lease Cost (1)54.782.2
Sublease Income(2.7)(2.9)
Total Lease Cost$161.2$183.8

(1) Variable Lease Cost includes rental payments based on usage, common-area maintenance costs and property taxes.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 133

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table presents a maturity analysis of lease liabilities as of December 31, 2023.

TABLE 79: MATURITY OF LEASE LIABILITIES

(In Millions)MATURITY OF LEASE LIABILITIES
2024$93.2
2025100.3
202685.5
202784.9
202872.8
Later Years393.5
Total Lease Payments830.2
Less: Imputed Interest(137.4)
Present Value of Lease Liabilities$692.8

As of December 31, 2023, there were no commitments for operating leases in addition to the above that have not yet commenced.

Northern Trust uses its incremental borrowing rate to determine the present value of lease payments for operating leases. Operating lease right-of-use (ROU) assets and lease liabilities may include options to extend or terminate the lease only when it is reasonably certain that Northern Trust will exercise that option. Northern Trust elects not to separate lease and non-lease components of a contract for its real estate leases. The location and amount of ROU assets and lease liabilities recorded on the consolidated balance sheets as of December 31, 2023 and 2022 are presented in the following table.

TABLE 80: LOCATION AND AMOUNT OF LEASE ASSETS AND LIABILITIES

(In Millions)LOCATION OF LEASE ASSETS AND LEASE LIABILITIES ON THE BALANCE SHEETDECEMBER 31, 2023DECEMBER 31, 2022
Assets
Operating Lease Right-of-Use AssetOther Assets$522.8$484.8
Liabilities
Operating Lease LiabilityOther Liabilities$692.8$626.2

The weighted-average remaining lease term and weighted-average discount rate applied to leases as of December 31, 2023 and 2022 were as follows:

TABLE 81: WEIGHTED-AVERAGE REMAINING LEASE TERM AND DISCOUNT RATE

DECEMBER 31, 2023DECEMBER 31, 2022
Operating Leases
Weighted-Average Remaining Lease Term10.1 years9.3 years
Weighted-Average Discount Rate3.3%3.0%

The following table provides supplemental cash flow information related to leases for the years ended December 31, 2023 and 2022.

TABLE 82: SUPPLEMENTAL CASH FLOW INFORMATION

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)20232022
Supplemental cash flow information
Cash paid for amounts included in the measurement of lease liabilities - operating cash flows$91.4$70.3
Supplemental non-cash information
Right-of-use assets obtained in exchange for new operating lease liabilities$122.6$61.0
134 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 10 – Goodwill and Other Intangibles

Goodwill. Changes by reporting segment in the carrying amount of Goodwill for the years ended December 31, 2023 and 2022, including the effect of foreign exchange rates on non-U.S.-dollar denominated balances, were as follows.

TABLE 83: GOODWILL

(In Millions)ASSET SERVICINGWEALTH MANAGEMENTTOTAL
Balance at December 31, 2021$625.7$80.5$706.2
Foreign Exchange Rates(14.7)(0.2)(14.9)
Balance at December 31, 2022$611.0$80.3$691.3
Foreign Exchange Rates10.90.111.0
Balance at December 31, 2023$621.9$80.4$702.3

The goodwill impairment test is performed at least annually at the reporting-unit level. The Corporation has determined its reporting units for this purpose to be Asset Servicing and Wealth Management. Goodwill was tested for impairment during the fourth quarter of 2023 using a quantitative assessment in which the estimated fair values of the reporting units are compared to their carrying values. Impairment is deemed to exist if the carrying value of a reporting unit exceeds its estimated fair value. Based upon the quantitative assessments, there were no impairments to goodwill in 2023.

Other Intangible Assets Subject to Amortization. The gross carrying amount and accumulated amortization of other intangible assets subject to amortization as of December 31, 2023 and 2022 were as follows.

TABLE 84: OTHER INTANGIBLE ASSETS

DECEMBER 31,
(In Millions)20232022
Gross Carrying Amount$135.0$197.9
Less: Accumulated Amortization63.4120.3
Net Book Value$71.6$77.6

Other intangible assets consist primarily of the value of acquired client relationships and are included in Other Assets on the consolidated balance sheets. Amortization expense related to other intangible assets was $9.3 million, $9.3 million, and $14.8 million for the years ended December 31, 2023, 2022, and 2021, respectively. Amortization for the years 2024, 2025, 2026, 2027, and 2028 is estimated to be $9.5 million, $8.9 million, $8.5 million, $8.3 million, and $7.7 million, respectively.

Capitalized Software. The gross carrying amount and accumulated amortization of capitalized software as of December 31, 2023 and 2022 were as follows.

TABLE 85: CAPITALIZED SOFTWARE

DECEMBER 31,
(In Millions)20232022
Gross Carrying Amount$3,781.7$3,479.3
Less: Accumulated Amortization1,754.21,517.4
Net Book Value$2,027.5$1,961.9

Capitalized software, which is included in Other Assets on the consolidated balance sheets, consists primarily of purchased software, software licenses, and allowable internal costs, including compensation relating to software developed for internal use. Fees paid for the use of software licenses that are not hosted by Northern Trust are expensed as incurred. Amortization expense, which is included in Equipment and Software on the consolidated statements of income, totaled $509.4 million in 2023, $434.2 million in 2022, and $390.1 million in 2021.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 135

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 11 – Deposits

The following table provides the scheduled maturity of total time deposits in denominations of $250,000 or greater at December 31, 2023.

TABLE 86: REMAINING MATURITY OF TIME DEPOSITS $250,000 OR MORE

DECEMBER 31, 2023
U.S. OFFICENON-U.S. OFFICES
(In Millions)CERTIFICATES OF DEPOSITOTHER TIMETOTAL
1 Year or Less$3,394.0$2,580.1$5,974.1
Over 1 Year to 2 Years39.3—39.3
Over 2 Years to 3 Years6.7—6.7
Over 3 Years to 4 Years2.1—2.1
Over 4 Years to 5 Years9.9—9.9
Over 5 Years———
Total$3,452.0$2,580.1$6,032.1

As of December 31, 2022, there were $3,721.8 million of time deposits in denominations of $250,000 or greater, of which $1,697.6 million were Certificates of Deposit and $2,024.2 million were non-U.S.

Note 12 – Senior Notes and Long-Term Debt

Senior Notes. A summary of Senior Notes outstanding at December 31, 2023 and 2022 is presented in the following table.

TABLE 87: SENIOR NOTES

DECEMBER 31,
($ In Millions)RATE20232022
Corporation-Senior Notes
Fixed Rate Due May 2027(1)4.00%$997.6$995.0
Fixed Rate Due Aug. 2028(2)(3)3.65483.3476.6
Fixed Rate Due May 2029(2)(3)3.15469.1460.3
Fixed Rate Due May 2030(2)(3)1.95823.2792.3
Total Senior Notes$2,773.2$2,724.2

(1) Redeemable within one month of maturity.

(2) Redeemable within three months of maturity.

(3) Interest rate swap contracts were entered into to modify the interest expense from fixed rates to floating rates. The swaps are recorded as fair value hedges and (decreases) increases in the carrying values of senior notes outstanding of $(219.1) million and $(264.7) million were recorded as of December 31, 2023 and 2022, respectively. See further detail in Note 25, “Derivative Financial Instruments.”

136 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Long-Term Debt. A summary of Long-Term Debt, defined as debt with original maturities of one year or more, outstanding at December 31, 2023 and 2022 is presented in the following table. We do not reclassify long-term debt to short-term borrowings within a year of maturity.

TABLE 88: LONG-TERM DEBT

DECEMBER 31,
($ In Millions)RATE20232022
Corporation-Subordinated Debt
Fixed Rate Notes due October 2025(1)(2)3.950%$720.3$720.1
Fixed-to-Floating Rate Notes due May 2032(3)3.375349.7349.7
Fixed Rate Notes due November 2032(4)6.125995.0996.4
Total Corporation-Subordinated Debt$2,065.0$2,066.2
Federal Home Loan Bank (FHLB) Advances
FHLB Fixed Rate Advance due December 20255.13%$30.0$—
FHLB Fixed Rate Advance due December 20255.18570.0—
FHLB Fixed Rate Advance due March 20265.13600.0—
FHLB Fixed Rate Advance due June 20265.09800.0—
Total FHLB Advances$2,000.0$—
Total Long-Term Debt$4,065.0$2,066.2
Long-Term Debt Qualifying as Risk-Based Capital$1,490.8$1,648.5

(1) Not redeemable prior to maturity.

(2) Interest rate swap contracts were entered into to modify the interest expense from fixed rates to floating rates. The swaps are recorded as fair value hedges and (decreases) increases in the carrying values of the subordinated notes outstanding of $(29.3) million were recorded as of December 31, 2022. See further detail in Note 25, “Derivative Financial Instruments.” There were no swaps as of December 31, 2023 as the fair value hedge was discontinued.

(3) The subordinated notes will bear interest from the date they were issued to, but excluding, May 8, 2027, at an annual rate of 3.375%, payable semi-annually in arrears. Effective February 27, 2023, the Board of Governors of the Federal Reserve adopted a final rule to implement the Adjustable Interest Rate (LIBOR) Act (the “LIBOR Act”). The final rule establishes benchmark replacements for contracts governed by U.S. law that reference certain tenors of U.S. dollar LIBOR after June 30, 2023. Pursuant to the final rule, three-month LIBOR will be replaced by the three-month CME Term SOFR Reference Rate, as administered by CME Group Benchmark Administration, Ltd. (“three-month CME Term SOFR”) plus the statutory spread adjustment of 0.26161% as set forth in the final rule. As a result, from, and including, May 8, 2027, the subordinated notes will bear interest at an annual rate equal to three-month CME Term SOFR plus 0.26161% plus 1.131%, payable quarterly in arrears. The subordinated notes are unsecured and may be redeemed, in whole but not in part, on, and only on, May 8, 2027, at a redemption price equal to 100% of the principal amount of the subordinated notes to be redeemed, plus accrued and unpaid interest, if any, up to but excluding the redemption date.

(4) Redeemable within three months of maturity.

Note 13 – Stockholders’ Equity

Preferred Stock. The Corporation is authorized to issue 10 million shares of preferred stock without par value. The Board of Directors is authorized to fix the particular designations, preferences and relative, participating, optional and other special rights and qualifications, limitations or restrictions for each series of preferred stock issued.

As of December 31, 2023, 5,000 shares of Series D Non-Cumulative Perpetual Preferred Stock (“Series D Preferred Stock”) and 16,000 shares of Series E Non-Cumulative Perpetual Preferred Stock (“Series E Preferred Stock”) were outstanding.

Series D Preferred Stock. As of December 31, 2023, the Corporation had issued and outstanding 500,000 depositary shares, each representing a 1/100th ownership interest in a share of Series D Preferred Stock, issued in August 2016. Equity related to Series D Preferred Stock as of December 31, 2023 and 2022 was $493.5 million. Shares of the Series D Preferred Stock have no par value and a liquidation preference of $100,000 per share (equivalent to $1,000 per depositary share).

Dividends on the Series D Preferred Stock, which are not mandatory, accrue and are payable on the liquidation preference amount, on a non-cumulative basis, at a rate per annum equal to (i) 4.60% from the original issue date of the Series D Preferred Stock to but excluding October 1, 2026; and (ii) a floating rate equal to three-month CME Term SOFR, plus a statutory spread adjustment of 0.26161% (as set forth in the final rule to implement the LIBOR Act) plus 3.202% from and including October 1, 2026. Fixed rate dividends are payable in arrears on the first day of April and October of each year, through and including October 1, 2026, and floating rate dividends will be payable in arrears on the first day of January, April, July and October of each year, commencing on January 1, 2027.

The Series D Preferred Stock has no maturity date and is redeemable at the Corporation’s option in whole, or in part, on any dividend payment date on or after October 1, 2026. The Series D Preferred Stock is redeemable at the Corporation’s option in whole, but not in part, including prior to October 1, 2026, within 90 days of a regulatory capital treatment event, as described in the Series D Preferred Stock Certificate of Designation.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 137

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Shares of the Series D Preferred Stock rank senior to the Corporation’s common stock, and will rank at least equally with any other series of preferred stock it may issue (except for any senior series that may be issued with the requisite consent of the holders of the Series D Preferred Stock) and all other parity stock, with respect to the payment of dividends and distributions upon liquidation, dissolution or winding up.

Series E Preferred Stock. As of December 31, 2023, the Corporation had issued and outstanding 16 million depositary shares, each representing 1/1,000th ownership interest in a share of Series E Preferred Stock, issued in November 2019. Equity related to Series E Preferred Stock as of December 31, 2023 and 2022 was $391.4 million. Shares of the Series E Preferred Stock have no par value and a liquidation preference of $25,000 per share (equivalent to $25 per depositary share).

Dividends on the Series E Preferred Stock, which are not mandatory, accrue and are payable on the liquidation preference amount, on a non-cumulative basis, quarterly in arrears on the first day of January, April, July and October of each year, at a rate per annum equal to 4.70%. On October 17, 2023, the Corporation declared a cash dividend of $293.75 per share of Series E Preferred Stock payable on January 1, 2024, to stockholders of record as of December 15, 2023.

The Series E Preferred Stock has no maturity date and is redeemable at the Corporation’s option in whole, or in part, on any dividend payment date on or after January 1, 2025. The Series E Preferred Stock is redeemable at the Corporation’s option in whole, but not in part, including prior to January 1, 2025, within 90 days of a regulatory capital treatment event, as described in the Series E Preferred Stock Certificate of Designation.

Shares of the Series E Preferred Stock rank senior to the Corporation’s common stock, and will rank at least equally with any other series of preferred stock it may issue (except for any senior series that may be issued with the requisite consent of the holders of the Series E Preferred Stock) and all other parity stock, with respect to the payment of dividends and distributions upon liquidation, dissolution or winding up.

Common Stock. The Corporation’s current stock repurchase authorization to repurchase up to 25.0 million shares was approved by the Board of Directors in October 2021. Shares are repurchased by the Corporation to, among other things, manage the Corporation’s capital levels. Repurchased shares are used for general purposes, including the issuance of shares under stock option and other incentive plans. The repurchase authorization approved by the Board of Directors has no expiration date. During the year ended December 31, 2023, the Corporation repurchased 4,384,678 shares of common stock, including 378,130 shares withheld to satisfy tax withholding obligations related to share-based compensation, at a total cost of $347.5 million. During the year ended December 31, 2022, the Corporation repurchased 311,536 shares of common stock, all of which were shares withheld to satisfy tax withholding obligations related to share-based compensation, at a total cost of $35.4 million. During the year ended December 31, 2021, the Corporation repurchased 2,527,544 shares of common stock, including 394,326 shares withheld to satisfy tax withholding obligations related to share-based compensation, at a total cost of $267.6 million. The 2021 purchase was made pursuant to the repurchase program authorized by the Board of Directors in July 2018.

The average price paid per share for common stock repurchased in 2023, 2022, and 2021 was $79.26, $113.70, and $105.90, respectively.

An analysis of changes in the number of shares of common stock outstanding follows:

TABLE 89: SHARES OF COMMON STOCK

202320222021
Balance at January 1208,428,309207,761,875208,289,178
Incentive Plan and Awards1,040,450914,4041,162,484
Stock Options Exercised42,14363,566837,757
Treasury Stock Purchased(4,384,678)(311,536)(2,527,544)
Balance at December 31205,126,224208,428,309207,761,875
138 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 14 – Accumulated Other Comprehensive Income (Loss)

The following tables summarize the components of Accumulated Other Comprehensive Income (Loss) (AOCI) at December 31, 2023, 2022, and 2021, and changes during the years then ended.

TABLE 90: SUMMARY OF CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

(In Millions)NET UNREALIZED GAINS (LOSSES) ON AVAILABLE FOR SALE DEBT SECURITIES(1)NET UNREALIZED (LOSSES) GAINS ON CASH FLOW HEDGESNET FOREIGN CURRENCY ADJUSTMENTNET PENSION AND OTHER POSTRETIREMENT BENEFIT ADJUSTMENTSTOTAL
Balance at December 31, 2020$641.8$(3.2)$144.7$(355.3)$428.0
Net Change(534.7)0.810.559.8(463.6)
Balance at December 31, 2021$107.1$(2.4)$155.2$(295.5)$(35.6)
Net Change(1,474.7)3.69.4(71.9)(1,533.6)
Balance at December 31, 2022$(1,367.6)$1.2$164.6$(367.4)$(1,569.2)
Net Change443.7(0.4)39.0(51.0)431.3
Balance at December 31, 2023$(923.9)$0.8$203.6$(418.4)$(1,137.9)

(1) Includes net unrealized gains (losses) on debt securities transferred from AFS to HTM. Refer to Note 4, “Securities” for further information.

TABLE 91: DETAILS OF CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

FOR THE YEAR ENDED DECEMBER 31,202320222021
(In Millions)PRE-TAXTAXAFTER TAXPRE-TAXTAXAFTER TAXPRE-TAXTAXAFTER TAX
Unrealized Gains (Losses) on Available for Sale Debt Securities
Unrealized Gains (Losses) on Available for Sale Debt Securities$319.4$(81.1)$238.3$(2,263.8)$580.2$(1,683.6)$(685.0)$177.5$(507.5)
Reclassification Adjustments for Losses (Gains) Included in Net Income:
Interest Income on Debt Securities(1)105.6(26.7)78.965.1(16.4)48.7(36.6)9.2(27.4)
Net Losses on Debt Securities(2)169.5(43.0)126.5214.0(53.8)160.20.3(0.1)0.2
Net Change$594.5$(150.8)$443.7$(1,984.7)$510.0$(1,474.7)$(721.3)$186.6$(534.7)
Unrealized (Losses) Gains on Cash Flow Hedges
Foreign Exchange Contracts$36.3$(9.2)$27.1$1.0$(0.3)$0.7$5.6$(1.4)$4.2
Reclassification Adjustment for (Gains) Losses Included in Net Income(3)(36.8)9.3(27.5)3.7(0.8)2.9(4.5)1.1(3.4)
Net Change$(0.5)$0.1$(0.4)$4.7$(1.1)$3.6$1.1$(0.3)$0.8
Foreign Currency Adjustments
Foreign Currency Translation Adjustments$100.8$(1.6)$99.2$(200.1)$3.0$(197.1)$(133.8)$4.1$(129.7)
Long-Term Intra-Entity Foreign Currency Transaction (Losses) Gains(0.9)0.2(0.7)(2.6)0.7(1.9)0.6(0.1)0.5
Net Investment Hedge Gains (Losses)(77.4)17.9(59.5)278.7(70.3)208.4186.6(46.9)139.7
Net Change$22.5$16.5$39.0$76.0$(66.6)$9.4$53.4$(42.9)$10.5
Pension and Other Postretirement Benefit Adjustments
Net Actuarial (Losses) Gains$(71.4)$15.7$(55.7)$(163.9)$44.7$(119.2)$7.9$0.2$8.1
Reclassification Adjustment for Losses (Gains) Included in Net Income(4)
Amortization of Net Actuarial Loss6.4(1.7)4.719.1(4.7)14.441.4(10.3)31.1
Amortization of Prior Service Cost (Credit)———(1.0)0.3(0.7)(1.0)0.3(0.7)
Settlement Loss———44.9(11.3)33.628.3(7.0)21.3
Net Change$(65.0)$14.0$(51.0)$(100.9)$29.0$(71.9)$76.6$(16.8)$59.8
Total Net Change$551.5$(120.2)$431.3$(2,004.9)$471.3$(1,533.6)$(590.2)$126.6$(463.6)

(1) The before-tax reclassification adjustment is related to the unrealized gains (losses) amortization on AFS debt securities that were transferred to HTM debt securities during the second quarter of 2021 and third quarter of 2022. Refer to Note 4, “Securities” for further information.

(2) The net losses on AFS debt securities before-tax reclassification adjustment is recorded in Investment Security Gains (Losses), net on the consolidated statements of income. Refer to Note 4, “Securities” for further information.

(3) See Note 25, "Derivative Financial Instruments" for the location of the reclassification adjustment related to cash flow hedges.

(4) The pension and other postretirement benefit before-tax reclassification adjustment is recorded in Employee Benefits expense on the consolidated statements of income.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 139

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 15 – Net Income per Common Share

The computations of net income per common share are presented in the following table.

TABLE 92: NET INCOME PER COMMON SHARE

FOR THE YEAR ENDED DECEMBER 31,
($ In Millions Except Per Common Share Information)202320222021
BASIC NET INCOME PER COMMON SHARE
Average Number of Common Shares Outstanding207,248,094208,309,331208,075,522
Net Income$1,107.3$1,336.0$1,545.3
Less: Dividends on Preferred Stock41.841.841.8
Net Income Applicable to Common Stock1,065.51,294.21,503.5
Less: Earnings Allocated to Participating Securities11.611.812.9
Earnings Allocated to Common Shares Outstanding$1,053.9$1,282.4$1,490.6
Basic Net Income Per Common Share5.096.167.16
DILUTED NET INCOME PER COMMON SHARE
Average Number of Common Shares Outstanding207,248,094208,309,331208,075,522
Plus Dilutive Effect of Share-based Compensation315,652557,933823,708
Average Common and Potential Common Shares207,563,746208,867,264208,899,230
Earnings Allocated to Common and Potential Common Shares$1,053.9$1,282.4$1,490.6
Diluted Net Income Per Common Share5.086.147.14

Note: Common stock equivalents of 0.1 million for the year ended December 31, 2023, were not included in the computation of diluted net income per common share because their inclusion would have been antidilutive. For the years ended December 31, 2022 and 2021, respectively, there were de minimis and no common stock equivalents excluded in the computation of diluted net income per share.

Note 16 – Revenue from Contracts with Clients

Trust, Investment, and Other Servicing Fees. Custody and Fund Administration income is comprised of revenues received from our core asset servicing business for providing custody, fund administration, and middle-office-related services, primarily to Asset Servicing clients. Investment Management and Advisory income contains revenue received from providing asset management and related services to Wealth Management and Asset Servicing clients and to Northern Trust sponsored funds. Securities Lending income represents revenues generated from securities lending arrangements that Northern Trust enters into as agent, mainly with Asset Servicing clients. Other income largely consists of revenues received from providing employee benefit, investment risk and analytic and other services to Asset Servicing and Wealth Management clients.

Other Noninterest Income. Treasury Management income represents revenues received from providing cash and liquidity management services to Asset Servicing and Wealth Management clients. The portion of Security Commissions and Trading Income that relates to revenue from contracts with clients is primarily comprised of commissions earned from providing securities brokerage services to Wealth Management and Asset Servicing clients. The portion of Other Operating Income that relates to revenue from contracts with clients is mainly comprised of service fees for banking-related services provided to Wealth Management and Asset Servicing clients.

Performance Obligations. Clients are typically charged monthly or quarterly in arrears based on the fee arrangement agreed to with each client; payment terms will vary depending on the client and services offered.

Substantially all revenues generated from contracts with clients for asset servicing, asset management, securities lending, treasury management and banking-related services are recognized on an accrual basis, over the period in which services are provided. The nature of Northern Trust’s performance obligations is to provide a series of distinct services in which the customer simultaneously receives and consumes the benefits of the promised services as they are performed. Fee arrangements are mainly comprised of variable amounts based on market value of client assets managed and serviced, transaction volumes, number of accounts, and securities lending volume and spreads. Revenue is recognized using the output method in an amount that reflects the consideration to which Northern Trust expects to be entitled in exchange for providing each month or quarter of service. For contracts with multiple performance obligations, revenue is allocated to each performance obligation based on the price agreed to with the client, representing its relative standalone selling price.

Security brokerage revenue is primarily represented by securities commissions received in exchange for providing trade execution related services. Control is transferred at a point in time, on the trade date of the transaction, and fees are typically variable based on transaction volumes and security types.

140 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Northern Trust’s contracts with its clients are typically open-ended arrangements and are therefore considered to have an original duration of less than one year. Northern Trust has elected the practical expedient to not disclose the value of remaining performance obligations for contracts with an original expected duration of one year or less.

The following table presents revenues disaggregated by major revenue source.

TABLE 93: REVENUE DISAGGREGATION

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Noninterest Income
Trust, Investment and Other Servicing Fees
Custody and Fund Administration$1,805.3$1,816.0$1,917.5
Investment Management and Advisory2,232.32,299.12,140.0
Securities Lending83.981.676.9
Other240.3235.9226.7
Total Trust, Investment and Other Servicing Fees$4,361.8$4,432.6$4,361.1
Other Noninterest Income
Foreign Exchange Trading Income$203.9$288.6$292.6
Treasury Management Fees31.639.344.3
Security Commissions and Trading Income135.0136.2140.2
Other Operating Income228.7191.3243.9
Investment Security Gains (Losses), net(169.5)(214.0)(0.3)
Total Other Noninterest Income$429.7$441.4$720.7
Total Noninterest Income$4,791.5$4,874.0$5,081.8

On the consolidated statements of income, Trust, Investment and Other Servicing Fees and Treasury Management Fees represent revenue from contracts with clients. For the year ended December 31, 2023, revenue from contracts with clients also includes $115.9 million of the $135.0 million total Security Commissions and Trading Income and $38.9 million of the $228.7 million total Other Operating Income. For the year ended December 31, 2022, revenue from contracts with clients also includes $116.8 million of the $136.2 million total Security Commissions and Trading Income and $37.2 million of the $191.3 million total Other Operating Income. For the year ended December 31, 2021, revenue from contracts with clients also includes $112.1 million of the $140.2 million total Security Commissions and Trading Income and $53.9 million of the $243.9 million total Other Operating Income.

Receivables Balances. The following table represents receivables balances from contracts with clients, which are included in Other Assets on the consolidated balance sheets, at December 31, 2023 and 2022.

TABLE 94: CLIENT RECEIVABLES

DECEMBER 31,
(In Millions)20232022
Trust Fees Receivable, net(1)$863.5$882.5
Other64.955.4
Total Client Receivables$928.4$937.9

*(1)*Trust Fees Receivable is net of a $15.9 million and $13.5 million fee receivable allowance as of December 31, 2023 and 2022, respectively.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 141

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 17 – Net Interest Income

The components of Net Interest Income were as follows.

TABLE 95: NET INTEREST INCOME

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Interest Income
Federal Reserve and Other Central Bank Deposits$1,462.3$472.0$11.3
Interest-Bearing Due from and Deposits with Banks(1)130.146.69.1
Federal Funds Sold0.30.1—
Securities Purchased under Agreements to Resell1,585.2103.73.5
Securities – Taxable1,534.4899.9658.8
– Nontaxable(2)1.31.31.5
Loans and Leases2,551.11,344.3713.5
Other Interest-Earning Assets(3)60.39.88.8
Total Interest Income$7,325.0$2,877.7$1,406.5
Interest Expense
Deposits$2,685.3$602.8$(61.3)
Federal Funds Purchased256.934.1(0.4)
Securities Sold under Agreements to Repurchase1,541.190.70.2
Other Borrowings542.5126.214.2
Senior Notes170.092.748.3
Long-Term Debt147.244.021.1
Floating Rate Capital Debt——1.7
Total Interest Expense$5,343.0$990.5$23.8
Net Interest Income$1,982.0$1,887.2$1,382.7

(1) Interest-Bearing Due from and Deposits with Banks includes the interest-bearing component of Cash and Due from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.

(2) Non-taxable Securities represent securities that are exempt from U.S. federal income taxes.

(3) Other Interest-Earning Assets include certain community development investments, collateral deposits with certain securities depositories and clearing houses, Federal Home Loan Bank and Federal Reserve stock, and money market investments which are classified in Other Assets on the consolidated balance sheets.

Note 18 – Other Operating Income

The components of Other Operating Income were as follows.

TABLE 96: OTHER OPERATING INCOME

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Loan Service Fees$83.1$71.5$66.6
Banking Service Fees53.049.850.9
Bank Owned Life Insurance69.561.048.5
Other Income(1)23.19.077.9
Total Other Operating Income$228.7$191.3$243.9

(1) Other Income includes the mark-to-market gain or loss on derivative swap activity primarily related to the sale of certain Visa Class B common shares.

142 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 19 – Other Operating Expense

The components of Other Operating Expense were as follows.

TABLE 97: OTHER OPERATING EXPENSE

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Business Promotion$74.8$76.7$65.5
Staff Related35.034.633.9
FDIC Insurance Premiums(1)112.017.814.6
Charitable Contributions15.619.418.0
Other Expenses235.5210.8167.1
Total Other Operating Expense$472.9$359.3$299.1

(1) FDIC Insurance Premiums include the $84.6 million FDIC special assessment for the year ended December 31, 2023. This line also reflects an initial base deposit insurance assessment rate increase which began in the first quarterly assessment period of 2023.

In November 2023, the FDIC issued a final rule to implement a special assessment to recoup losses to the Deposit Insurance Fund associated with bank failures in the first half of 2023. Under the final rule, the assessment base for the special assessment is equal to an insured depository institution’s estimated uninsured domestic office deposits reported as of December 31, 2022, adjusted to exclude the first $5 billion of uninsured domestic office deposits. The final rule provides that the FDIC will collect the special assessment at a quarterly rate of 3.36 basis points over eight quarterly assessment periods, subject to change depending on any adjustments to the loss estimate, mergers, failures, or amendments to reported estimates of uninsured deposits. In conjunction with the special assessment, $84.6 million was recognized as an accrued liability and related expense in the fourth quarter of 2023. The final rule becomes effective on April 1, 2024, and the first collection, including any adjustments as described above, will be reflected on the invoice for the first quarterly assessment period of 2024, with the first payment due on June 28, 2024.

Note 20 – Income Taxes

The following table reconciles the statutory federal tax rate with the effective tax rate for the periods presented below.

TABLE 98: INCOME TAXES

FOR THE YEAR ENDED DECEMBER 31,
202320222021
Statutory Federal Tax Rate21.0%21.0%21.0%
State Taxes, net3.43.33.4
Foreign Tax Rate Differential0.60.10.1
Excess Tax Benefit Related to Share-Based Compensation(0.1)(0.2)(0.4)
Tax Credits(2.7)(2.0)(1.6)
Tax Exempt Income(1.4)(0.9)(0.6)
Valuation Allowance1.81.50.6
Other, net1.81.60.6
Effective Tax Rate24.4%24.4%23.1%

Income tax expense for the year ended December 31, 2023, 2022, and 2021 was $357.5 million, $430.3 million, and $464.8 million, representing an effective tax rate of 24.4%, 24.4%, and 23.1% respectively.

For the year ended December 31, 2022, the increase in the effective tax rate was primarily driven by a higher net impact from international operations, including limitations on the U.S. foreign tax credit and reserves for uncertain tax positions, partially offset by increased tax benefits from tax-credit investments and tax-exempt income.

For the year ended December 31, 2021, the decrease in the effective tax rate was primarily driven by the lower net tax impact from international operations and $26.8 million of prior-year tax expense related to the reversal of tax benefits previously recognized through earnings.

The Corporation files income tax returns in the U.S. federal, various state, and foreign jurisdictions. The Corporation is no longer subject to income tax examinations by U.S. federal authorities before 2015, U.S. state or local tax authorities for years before 2011, or non-U.S. tax authorities for years before 2014.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 143

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Included in Other Liabilities on the consolidated balance sheets at December 31, 2023 and 2022 were $60.7 million and $40.7 million of unrecognized tax benefits, respectively. If recognized, the amounts would reduce 2023 and 2022 income tax expense by $54.4 million and $37.4 million, respectively. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows.

TABLE 99: UNRECOGNIZED TAX BENEFITS

(In Millions)202320222021
Balance at January 1$40.7$25.3$22.4
Additions for Tax Positions Taken in the Current Year2.11.71.2
Additions for Tax Positions Taken in Prior Years24.013.74.2
Reductions for Tax Positions Taken in Prior Years(5.1)—(2.5)
Reductions Resulting from Expiration of Statutes(1.0)——
Balance at December 31$60.7$40.7$25.3

It is possible that changes in the amount of unrecognized tax benefits could occur in the next 12 months due to changes in judgment related to recognition or measurement, settlements with taxing authorities, or expiration of statute of limitations. Management does not believe that future changes, if any, would have a material effect on the consolidated financial position or liquidity of Northern Trust, although they could have a material effect on operating results for a particular period.

A provision for interest and penalties of $0.2 million, net of tax, was included in the Provision for Income Taxes for the year ended December 31, 2023. This compares to a provision for interest and penalties of $11.1 million, net of tax, and a benefit of $0.4 million, net of tax, for the year ended December 31, 2022 and 2021, respectively. As of December 31, 2023 and 2022, the liability for the potential payment of interest and penalties totaled $22.7 million and $22.2 million, net of tax, respectively.

The components of the consolidated Provision for Income Taxes for each of the three years ended December 31 are as follows.

TABLE 100: PROVISION FOR INCOME TAXES

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Current Tax Provision:
Federal$250.5$357.7$241.5
State63.284.774.0
Non-U.S.92.0130.6147.3
Total$405.7$573.0$462.8
Deferred Tax Provision:
Federal$(54.0)$(126.0)$(11.7)
State(1.4)(10.7)12.0
Non-U.S.7.2(6.0)1.7
Total$(48.2)$(142.7)$2.0
Provision for Income Taxes$357.5$430.3$464.8

In addition to the amounts shown above, tax charges (benefits) have been recorded directly to Stockholders’ Equity for the following. For further detail, refer to Note 14, “Accumulated Other Comprehensive Income (Loss).”

TABLE 101: TAX CHARGES (BENEFITS) RECORDED DIRECTLY TO STOCKHOLDERS’ EQUITY

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Tax Effect of Other Comprehensive Income$120.2$(471.3)$(126.6)
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Deferred taxes result from temporary differences between the amounts reported on the consolidated financial statements and the tax bases of assets and liabilities. Deferred tax assets and liabilities have been computed as follows.

TABLE 102: DEFERRED TAX ASSETS AND LIABILITIES

DECEMBER 31,
(In Millions)20232022
Deferred Tax Liabilities:
Software Development394.9354.7
Depreciation and Amortization23.9122.6
Compensation and Benefits—5.2
State Taxes, net46.858.3
Other Liabilities53.442.1
Gross Deferred Tax Liabilities519.0582.9
Deferred Tax Assets:
Allowance for Credit Losses46.241.8
Unrealized Losses on Securities, net244.6427.3
Compensation and Benefits70.2—
Tax Credit and Loss Carryforwards121.295.3
Other Assets116.0143.7
Gross Deferred Tax Assets598.2708.1
Valuation Reserve(121.2)(95.3)
Deferred Tax Assets, net of Valuation Reserve477.0612.8
Net Deferred Tax Assets (Liabilities)$(42.0)$29.9

The Corporation generated a foreign tax credit carryforward during the years ended December 31, 2023 and 2022, expiring in 2033 and 2032, respectively. A cumulative valuation allowance related to the credit carryforward of $120.7 million and $94.9 million was recorded at December 31, 2023 and 2022, respectively, as management believes the foreign tax credit carryforwards will not be fully realized.

Northern Trust had various state net operating loss carryforwards as of December 31, 2023 and 2022. The income tax benefits associated with these loss carryforwards were approximately $0.4 million and $0.4 million as of December 31, 2023 and 2022, respectively. A valuation allowance related to the loss carryforwards of $0.4 million and $0.4 million was recorded at December 31, 2023 and 2022, respectively, as management believes the net operating losses will not be fully realized.

Note 21 – Employee Benefits

The Corporation and certain of its subsidiaries provide various benefit programs, including defined benefit pension and defined contribution plans. A description of each major plan and related disclosures are provided below.

Pension. A noncontributory qualified defined benefit pension plan covers substantially all U.S. employees of Northern Trust. Employees of certain European subsidiaries retain benefits in local defined benefit plans, although those plans are closed to new participants and to future benefit accruals. Employees continue to accrue benefits under the Swiss pension plan, which is accounted for as a defined benefit plan under U.S. GAAP.

Northern Trust also maintains a noncontributory supplemental pension plan for participants whose retirement benefits under the U.S. Qualified Plan are expected to exceed the limits imposed by federal tax law. Northern Trust has a nonqualified trust, referred to as a “Rabbi” Trust, used to hold assets designated for the funding of benefits in excess of those permitted in certain of its qualified retirement plans. This arrangement offers participants a degree of assurance for payment of benefits in excess of those permitted in the related qualified plans. As the “Rabbi” Trust assets remain subject to the claims of creditors and are not the property of the employees, they are accounted for as corporate assets and are included in Other Assets on the consolidated balance sheets. Total assets in the “Rabbi” Trust related to the nonqualified pension plan at December 31, 2023 and 2022 amounted to $90.3 million and $92.3 million, respectively. Contributions of $16.5 million and $20.7 million were made to the “Rabbi” Trust in 2023 and 2022, respectively.

The following tables set forth the status, amounts included in AOCI, and net periodic pension expense of the U.S. Qualified Plan, Non-U.S. Pension Plans, and U.S. Non-Qualified Plan. Prior service credits for the U.S. Qualified Plan were amortized on a straight-line basis over 11 years and were amortized in full as of December 31, 2022. Prior service

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costs for the U.S. Non-Qualified Plan were amortized on a straight-line basis over 10 years and were amortized in full as of December 31, 2021.

TABLE 103: EMPLOYEE BENEFIT PLAN STATUS

U.S. QUALIFIED PLANNON-U.S. PENSION PLANSU.S. NON-QUALIFIED PLAN
($ In Millions)202320222023202220232022
Accumulated Benefit Obligation$1,015.6$963.3$143.7$126.2$94.1$97.4
Projected Benefit Obligation$1,151.7$1,077.7$148.6$129.0$109.2$113.6
Plan Assets at Fair Value1,200.81,176.8148.7134.5——
Funded Status at December 31$49.1$99.1$0.1$5.5$(109.2)$(113.6)
Weighted-Average Assumptions:
Discount Rates5.03%5.22%3.12%3.76%4.95%5.15%
Rate of Increase in Compensation Level5.565.561.751.755.565.56
Expected Long-Term Rate of Return on Assets7.257.253.903.99N/AN/A

TABLE 104: AMOUNTS INCLUDED IN ACCUMULATED OTHER COMPREHENSIVE INCOME

U.S. QUALIFIED PLANNON-U.S. PENSION PLANSU.S. NON-QUALIFIED PLAN
(In Millions)202320222023202220232022
Net Actuarial Loss$467.7$418.3$34.4$24.3$62.3$59.2
Prior Service (Credit) Cost———0.2——
Gross Amount in Accumulated Other Comprehensive Income467.7418.334.424.562.359.2
Income Tax Effect117.7105.15.14.915.614.8
Net Amount in Accumulated Other Comprehensive Income$350.0$313.2$29.3$19.6$46.7$44.4

TABLE 105: NET PERIODIC PENSION EXPENSE

U.S. QUALIFIED PLAN(1)NON-U.S. PENSION PLANSU.S. NON-QUALIFIED PLAN
($ In Millions)202320222021202320222021202320222021
Service Cost$46.0$48.0$52.3$1.6$1.7$2.2$4.8$5.6$5.3
Interest Cost53.946.340.44.82.52.25.33.93.7
Expected Return on Plan Assets(100.9)(85.7)(79.0)(6.7)(3.2)(3.2)———
Amortization:
Net Actuarial Loss1.511.432.4(0.4)0.61.05.37.48.2
Prior Service (Credit) Cost—(0.1)(0.4)——0.2——0.1
Net Periodic Pension Expense$0.5$19.9$45.7$(0.7)$1.6$2.4$15.4$16.9$17.3
Settlement Expense—44.127.9—0.80.4———
Total Pension Expense$0.5$64.0$73.6$(0.7)$2.4$2.8$15.4$16.9$17.3
Weighted-Average Assumptions:
Discount Rates5.22%3.03%4.81%2.75%3.05%3.76%1.34%0.93%5.15%2.80%2.45%
5.49%5.22%3.06%3.03%
Rate of Increase in Compensation Level5.564.974.971.751.501.505.564.974.97
Expected Long-Term Rate of Return on Assets7.255.256.005.255.003.991.791.28N/AN/AN/A
6.50

(1) In determining the pension expense for the U.S. Qualified Plan for 2022, Northern Trust utilized a discount rate of 3.03% as of December 31, 2021, 4.81% as of June 30, 2022, 5.49% as of September 30, 2022, and 5.22% as of December 31, 2022 and the expected long-term rate of return was 5.25% as of December 31, 2021, 6.00% as of June 30, 2022, and 6.50% as of September 30, 2022.

In determining the pension expense for the U.S. Qualified Plan for 2021, Northern Trust utilized a discount rate of 2.75% as of December 31, 2020, 3.05% as of June 30, 2021, 3.06% as of September 30, 2021, and 3.03% as of December 31, 2021 and the expected long-term rate of return was 5.25% as of both December 31, 2020 and June 30, 2021, and 5.00% as of September 31, 2021.

Northern Trust’s U.S. Qualified Plan provides participants the option to select lump-sum benefit payments upon retirement and termination of service. In the second quarter of both 2022 and 2021, it became probable that total lump-sum payments

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during each year would exceed the settlement threshold of the sum of annual service and interest cost. Therefore, Northern Trust recognized settlement charges related to its U.S. Qualified Plan in the second, third, and fourth quarter of both 2022 and 2021, which required interim remeasurements of the U.S. Qualified Plan as of each respective quarter-end. The settlement charge represents the pro rata amount of the net loss in AOCI that is charged to income based on the proportion of the Projected Benefit Obligation settled to the total Projected Benefit Obligation and amounted to a total of $44.1 million and $27.9 million in 2022 and 2021, respectively.

The components of net periodic pension expense are included in Employee Benefits expense on the consolidated statements of income.

TABLE 106: CHANGE IN PROJECTED BENEFIT OBLIGATION

U.S. QUALIFIED PLANNON-U.S. PENSION PLANSU.S. NON-QUALIFIED PLAN
(In Millions)202320222023202220232022
Beginning Balance$1,077.7$1,401.3$129.0$210.1$113.6$147.7
Service Cost46.048.01.61.74.85.6
Interest Cost53.946.34.82.55.33.9
Employee Contributions——0.80.7——
Plan Amendment——(0.2)(0.3)——
Actuarial Loss (Gain)36.8(281.2)8.1(64.3)8.4(20.0)
Settlements—(125.0)—(0.9)——
Benefits Paid(62.7)(11.7)(4.1)(4.6)(22.9)(23.6)
Foreign Exchange Rate Changes——8.6(15.9)——
Ending Balance$1,151.7$1,077.7$148.6$129.0$109.2$113.6

Actuarial losses of $53.3 million in 2023 were primarily caused by decreases in discount rates, while actuarial gains of $365.5 million in 2022 were primarily caused by substantial increases in discount rates.

TABLE 107: ESTIMATED FUTURE BENEFIT PAYMENTS

(In Millions)U.S. QUALIFIED PLANNON-U.S.PENSION PLANSU.S. NON-QUALIFIED PLAN
2024$95.7$6.2$15.8
202599.64.716.1
202698.95.513.4
2027101.26.511.2
202898.66.811.2
2029-2033487.635.349.8

TABLE 108: CHANGE IN PLAN ASSETS

U.S. QUALIFIED PLANNON-U.S PENSION PLANS
(In Millions)2023202220232022
Fair Value of Assets at Beginning of Period$1,176.8$1,708.9$134.5$198.7
Actual Return on Assets86.8(395.4)5.0(46.9)
Employer Contributions——3.93.6
Employee Contributions——0.80.7
Settlements—(125.0)—(0.9)
Benefits Paid(62.8)(11.7)(4.1)(4.6)
Foreign Exchange Rate Changes——8.6(16.1)
Fair Value of Assets at End of Period$1,200.8$1,176.8$148.7$134.5

The minimum required and maximum deductible contributions for the U.S. Qualified Plan in 2024 are estimated to be zero and $420.0 million, respectively. The remaining 2024 maximum deductible contribution, after considering a cash contribution of $200.0 million made to the U.S. Qualified Plan during January 2024, is estimated at $220.0 million.

The investment strategy employed for Northern Trust’s U.S. Qualified Plan utilizes a dynamic glide path based on a set of pre-approved asset allocations to return-seeking and liability-hedging assets that vary in accordance with the U.S. Qualified Plan’s projected benefit obligation funded ratio. In general, as the U.S. Qualified Plan’s projected benefit

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obligation funded ratio increases beyond an established threshold, the U.S. Qualified Plan’s allocation to liability-hedging assets will increase while the allocation to return-seeking assets will decrease. Conversely, a decrease in the U.S. Qualified Plan’s projected benefit obligation funded ratio beyond an established threshold will generally result in a decrease in the U.S. Qualified Plan’s allocation to liability-hedging assets and increase in the allocation to return-seeking assets. Liability-hedging assets include U.S. long credit bonds, U.S. long government bonds, and a custom completion strategy used to hedge more closely the liability duration of projected plan benefits with bond duration across all durations. Return-seeking assets include: U.S. equity, international developed equity, emerging markets equity, real estate, high yield bonds, global listed infrastructure, emerging market debt, private equity and hedge funds. During 2022, the funded ratio fell below the threshold and in early 2023 the asset allocation of the U.S. Qualified Plan was adjusted to a stage of the glide path which allows for a greater component of return-seeking assets.

Northern Trust utilizes an asset/liability methodology to determine the investment policies that will best meet its short and long-term objectives. The process is performed by modeling current and alternative strategies for asset allocation, funding policy and actuarial methods and assumptions. The financial modeling uses projections of expected capital market returns and expected volatility of those returns to determine alternative asset mixes having the greatest probability of meeting the U.S. Qualified Plan’s investment objectives. Risk tolerance is established through careful consideration of the U.S. Qualified Plan liabilities, funded status, and corporate financial condition. The intent of this strategy is to protect the U.S. Qualified Plan’s funded status and generate returns, which in combination with voluntary contributions are expected to outpace the U.S. Qualified Plan’s liability growth over the long run.

As of December 31, 2023, the target allocation of the U.S. Qualified Plan assets consisted of 45% U.S. long credit bonds, 20% global equities (developed and emerging markets), 10% custom completion, 5% private equity, 5% high yield bonds, 4% emerging market debt, 4% global listed infrastructure, 4% private real estate, and 3% hedge funds.

Global equity investments include common stocks that are listed on an exchange and investments in commingled funds that invest primarily in publicly traded equities. Equity investments are diversified across country, region, investment style and market capitalization. Fixed income securities held include U.S. treasury securities, corporate bonds, and investments in commingled funds that invest in a diversified blend of longer duration fixed income securities; the custom completion strategy uses U.S. treasury securities and interest rate futures (or similar instruments) to align more closely with the target hedge ratio across maturities. Diversifying investments, including private equity, hedge funds, private real estate, emerging market debt, high yield bonds, and global listed infrastructure, are used judiciously to enhance long-term returns while improving portfolio diversification. Private equity assets consist primarily of investments in limited partnerships that invest in individual companies in the form of non-public equity or non-public debt positions. Direct or co-investment in non-public stock by the U.S. Qualified Plan is prohibited. The U.S. Qualified Plan’s private equity investments are limited to 20% of each of the total limited partnership or fund of funds and the maximum allowable loss cannot exceed the commitment amount. The U.S. Qualified Plan invests in one hedge fund of funds, which invests, either directly or indirectly, in diversified portfolios of funds or other pooled investment vehicles.

Investments in private real estate, high yield bonds, emerging market debt, and global listed infrastructure are designed to provide income and added diversification.

Derivatives may be used, depending on the nature of the asset class to which they relate, to gain market exposure in an efficient and timely manner, to hedge foreign currency exposure or interest rate risk, or to alter the duration of a portfolio. There were four derivatives held by the U.S. Qualified Plan at both December 31, 2023 and 2022.

Investment risk is measured and monitored on an ongoing basis through monthly liability measurements, periodic asset/liability studies, and quarterly investment portfolio reviews. Standards used to evaluate the U.S. Qualified Plan’s investment manager performance include, but are not limited to, the achievement of objectives, operation within guidelines and policy, and comparison against a benchmark. In addition, each manager of the investment funds held by the U.S. Qualified Plan is ranked against a universe of peers and compared to a benchmark. Total U.S. Qualified Plan performance analysis includes an analysis of the market environment, asset allocation impact on performance, risk and return relative to other ERISA plans, and manager impacts upon U.S. Qualified Plan performance.

The following describes the hierarchy of inputs used to measure fair value and the primary valuation methodologies used by Northern Trust for the U.S. Qualified Plan assets measured at fair value.

Level 1 – Quoted, active market prices for identical assets or liabilities. The U.S. Qualified Plan’s Level 1 assets are comprised primarily of mutual funds and domestic common stocks. The U.S. Qualified Plan’s Level 1 investments that are exchange traded are valued at the closing price reported by the respective exchanges on the day of valuation.

Level 2 – Observable inputs other than Level 1 prices, such as quoted active market prices for similar assets or liabilities, quoted prices for identical or similar assets in inactive markets, and model-derived valuations in which all significant inputs are observable in active markets. The U.S. Qualified Plan’s Level 2 assets are comprised of collective trust funds, corporate bonds, government obligations, and municipal and provincial bonds. The investments in collective trust funds fair values are calculated on a scheduled basis using the closing market prices and accruals of securities in the

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

funds (total value of the funds) divided by the number of fund shares currently issued and outstanding. Redemptions of the collective trust funds occur by contract at the respective fund’s redemption date net asset value (NAV).

Level 3 – Valuation techniques in which one or more significant inputs are unobservable in the marketplace. The U.S. Qualified Plan did not hold Level 3 assets as of December 31, 2023 and 2022.

Assets valued at fair value using NAV per share - The U.S. Qualified Plan’s assets valued at fair value using NAV per share include investments in private equity funds and a hedge fund, which invest in underlying groups of investment funds or other pooled investment vehicles that are selected by the respective funds’ investment managers. The investment funds and the underlying investments held by these investment funds are valued at fair value. In determining the fair value of the underlying investments of each fund, the fund’s investment manager or general partner takes into account the estimated value reported by the underlying funds as well as any other considerations that may, in their judgment, increase or decrease such estimated value. The investments in the private equity funds and a hedge fund are considered to be long-term investments. There are no capital withdrawal options related to the investments in the private equity funds. However, capital is periodically distributed as underlying investments are sold. It is estimated that the current private equity investments would be liquidated over 1 to 15 years, depending on the vintage year of a particular fund. With sixty days advance notice, the Plan’s investment in the hedge fund can be withdrawn at the next calendar quarter end.

The U.S. Qualified Plan’s assets valued at fair value using NAV per share also include investments in real estate funds, which invest in real estate assets. The investment in properties by the real estate funds are carried at fair value, which is estimated based on the price that would be received to sell an asset in an orderly transaction between marketplace participants at the measurement date. The valuation plan for each real estate investment is subject to review on an annual basis which is based on either an external appraisal from appraisal firms or internal valuations prepared by the real estate fund’s investment advisor. The Plan’s investment in real estate funds are considered to be long-term investments and, with forty-five days advance notice, can be withdrawn at the next calendar quarter end to the extent the real estate funds have liquid assets.

As investments in the private equity funds, hedge fund, and real estate fund are valued at fair value using NAV per share, they are not required to be categorized within the fair value hierarchy.

While Northern Trust believes its valuation methods for U.S. Qualified Plan assets are appropriate and consistent with other market participants, the use of different methodologies or assumptions could have a material effect on the computation of the estimated fair values.

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The following table presents the fair values of Northern Trust’s U.S. Qualified Plan assets, by major asset category, and their level within the fair value hierarchy defined by GAAP as of December 31, 2023 and 2022.

TABLE 109: FAIR VALUE OF U.S. QUALIFIED PLAN ASSETS

DECEMBER 31, 2023
(In Millions)LEVEL 1LEVEL 2LEVEL 3TOTAL
Domestic Common Stock$16.6$—$—$16.6
Foreign Common Stock0.3——0.3
Domestic Corporate Bonds—218.2—218.2
Foreign Corporate Bonds—33.6—33.6
U.S. Government Obligations—87.5—87.5
Non-U.S. Government Obligations—14.0—14.0
Domestic Municipal and Provincial Bonds—17.2—17.2
Foreign Municipal and Provincial Bonds—0.3—0.3
Collective Trust Funds—571.5—571.5
Mutual Funds80.3——80.3
Cash and Other(1)(3.4)——(3.4)
Total Assets at Fair Value in the Fair Value Hierarchy$93.8$942.3$—$1,036.1
Assets Valued at NAV per share
Northern Trust Private Equity Funds45.6
Northern Trust Hedge Fund36.2
Real Estate Funds82.9
Total Assets at Fair Value$1,200.8

(1) Negative balance in Cash and Other as of December 31, 2023 primarily relates to the timing of transfers between cash accounts and short-term investment funds presented in Collective Trust Funds.

DECEMBER 31, 2022
(In Millions)LEVEL 1LEVEL 2LEVEL 3TOTAL
Domestic Common Stock$14.7$—$—$14.7
Foreign Common Stock0.5——0.5
Domestic Corporate Bonds—263.6—263.6
Foreign Corporate Bonds—39.6—39.6
U.S. Government Obligations—77.5—77.5
Non-U.S. Government Obligations—13.8—13.8
Domestic Municipal and Provincial Bonds—16.8—16.8
Foreign Municipal and Provincial Bonds—0.2—0.2
Collective Trust Funds—522.3—522.3
Mutual Funds61.4——61.4
Cash and Other(1)(1.1)——(1.1)
Total Assets at Fair Value in the Fair Value Hierarchy$75.5$933.8$—$1,009.3
Assets Valued at NAV per share
Northern Trust Private Equity Funds33.2
Northern Trust Hedge Fund35.2
Real Estate Funds99.1
Total Assets at Fair Value$1,176.8

(1) Negative balance in Cash and Other as of December 31, 2022 primarily relates to due to broker for securities purchased.

A building block approach is employed for Northern Trust’s U.S. Qualified Plan in determining the long-term rate of return for plan assets. Historical markets and long-term historical relationships between equities, fixed income and other asset classes are studied using the widely accepted capital market principle that assets with higher volatility generate a greater return over the long-run. Current market factors such as inflation expectations and interest rates are evaluated before long-term capital market assumptions are determined. The long-term portfolio rate of return is established with consideration given to diversification and rebalancing. The rate is reviewed against peer data and historical returns to verify the return is reasonable and appropriate. Based on this approach and the U.S. Qualified Plan’s target asset allocation, the expected long-term rate of return on assets as of the U.S. Qualified Plan’s December 31, 2023 measurement date was set at 7.25%.

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Defined Contribution Plans. The Corporation and its subsidiaries maintain various defined contribution plans covering substantially all employees. The Corporation’s contribution to the U.S. plan and to certain European-based plans includes a matching component. The expense associated with defined contribution plans is charged to Employee Benefits expense on the consolidated statements of income and totaled $72.4 million in 2023, $67.2 million in 2022, and $65.3 million in 2021.

Note 22 – Share-Based Compensation Plans

Northern Trust recognizes expense for the grant-date fair value of share-based compensation granted to employees and non-employee directors.

Total compensation expense for share-based payment arrangements to employees and the associated tax impacts were as follows for the periods presented.

TABLE 110: TOTAL COMPENSATION EXPENSE FOR SHARE-BASED PAYMENT ARRANGEMENTS TO EMPLOYEES

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Restricted Stock Unit Awards$95.7$96.4$78.2
Performance Stock Units22.528.817.3
Total Share-Based Compensation Expense$118.2$125.2$95.5
Tax Benefits Recognized$29.9$31.4$24.0

As of December 31, 2023, there was $96.0 million of unrecognized compensation cost related to unvested share-based compensation arrangements granted under the Corporation’s share-based compensation plans. That cost is expected to be recognized as expense over a weighted-average period of approximately 3 years.

The Northern Trust Corporation 2017 Long-Term Incentive Plan (2017 Plan) is administered by the Human Capital and Compensation Committee (Committee) of the Board of Directors. All employees of the Corporation and its subsidiaries and all directors of the Corporation are eligible to receive awards under the 2017 Plan. The 2017 Plan provides for the grant of non-qualified and incentive stock options; tandem and free-standing stock appreciation rights; stock awards in the form of restricted stock, restricted stock units and other stock awards; and performance awards.

Restricted stock unit and performance stock unit grants continue to vest in accordance with the original terms of the award if the applicable employee retires after satisfying applicable age and service requirements.

Grants are outstanding under the 2017 Plan, the Northern Trust Corporation 2012 Stock Plan (2012 Plan), and the Amended and Restated Northern Trust Corporation 2002 Stock Plan (2002 Plan). The 2017 Plan was approved by stockholders in April 2017. Upon approval of the 2017 Plan, no additional shares have been or will be granted under the 2012 Plan or 2002 Plan. The total number of shares of the Corporation’s common stock authorized for issuance under the 2017 Plan is 20,000,000 plus shares forfeited under the 2012 Plan and 2002 Plan. As of December 31, 2023, shares available for future grant under the 2017 Plan, including shares forfeited under the 2012 Plan and 2002 Plan, totaled 13,718,608.

The following describes Northern Trust’s share-based payment arrangements and applies to awards under the 2017 Plan, 2012 Plan and the 2002 Plan, as applicable.

Stock Options. Stock options consist of options to purchase common stock at prices not less than 100% of the fair value thereof on the date the options are granted. Options have a maximum 10 years life and generally vest and become exercisable in 1 year to 4 years after the date of grant. All options terminate at such time as determined by the Committee and as provided in the terms and conditions of the respective option grants. There were no options granted during the years ended December 31, 2023, 2022, and 2021.

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The following table provides information about stock options granted, vested, and exercised in the years ended December 31, 2023, 2022, and 2021.

TABLE 111: STOCK OPTIONS GRANTED, VESTED, AND EXERCISED

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Grant-Date Fair Value of Stock Options Vested$—$—$2.2
Stock Options Exercised
Intrinsic Value as of Exercise Date1.63.641.3
Cash Received2.33.953.8
Tax Deduction Benefits Realized1.63.541.3

A summary of the status of stock options at December 31, 2023, and changes during the year then ended, are presented in the following table.

TABLE 112: STATUS OF STOCK OPTIONS AND CHANGES

($ In Millions Except Per Share Information)SHARESWEIGHTED AVERAGE EXERCISE PRICE PER SHAREWEIGHTED AVERAGE REMAINING CONTRACTUAL TERM (YEARS)AGGREGATE INTRINSIC VALUE
Options Outstanding, December 31, 2022441,547$72.58
Granted——
Exercised(42,143)54.87
Forfeited, Expired or Cancelled——
Options Outstanding, December 31, 2023399,404$74.451.9$4.7
Options Exercisable, December 31, 2023399,404$74.451.9$4.7

Restricted Stock Unit Awards. Restricted stock units may be granted to participants and entitles them to receive a payment in the Corporation’s common stock or cash and such other terms and conditions as the Committee deems appropriate. Each restricted stock unit provides the recipient the opportunity to receive one share of stock for each stock unit that vests. The restricted stock units granted in 2023 predominately vest at a rate equal to 25% per year for four years on the first day of the month following the month in which the grant date falls. Restricted stock unit grants totaled 1,166,376, 1,061,573, and 846,433, with weighted average grant-date fair values of $91.56, $110.99, and $99.31 per share, for the years ended December 31, 2023, 2022, and 2021, respectively. The total fair value of restricted stock units vested during the years ended December 31, 2023, 2022, and 2021, was $85.9 million, $75.6 million, and $89.4 million, respectively.

A summary of the status of outstanding restricted stock unit awards at December 31, 2023, and changes during the year then ended, is presented in the following table.

TABLE 113: OUTSTANDING RESTRICTED STOCK UNIT AWARDS

($ In Millions)NUMBERAGGREGATE INTRINSIC VALUE
Restricted Stock Unit Awards Outstanding, December 31, 20222,243,183$198.5
Granted1,166,376
Distributed(847,281)
Forfeited or Cancelled(62,220)
Restricted Stock Unit Awards Outstanding, December 31, 20232,500,058$211.0
Units Convertible, December 31, 202318,887$1.6
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The following is a summary of nonvested restricted stock unit awards at December 31, 2023, and changes during the year then ended.

TABLE 114: NONVESTED RESTRICTED STOCK UNIT AWARDS

NONVESTED RESTRICTED STOCK UNITSNUMBERWEIGHTED AVERAGE GRANT- DATE FAIR VALUE PER UNITWEIGHTED AVERAGE REMAINING VESTING TERM (YEARS)
Nonvested at December 31, 20222,223,657$103.412.4
Granted1,166,37691.56
Vested(846,642)101.38
Forfeited or Cancelled(62,220)99.66
Nonvested at December 31, 20232,481,171$98.622.4

Performance Stock Units. Each performance stock unit provides the recipient the opportunity to receive one share of the Corporation’s common stock for each stock unit based on the attainment of certain performance criteria over a three-year period. For performance stock unit awards granted in 2021, 2022 and 2023, the number of units that will vest are subject to the attainment of specified performance targets that are a function of average return on equity goals and average return on equity performance relative to that of a performance peer group, each measured over a three-year period. For performance stock units outstanding as of December 31, 2023, the number of performance stock units that will vest ranges from 0% to 150% of the original award granted based on the achievement of both absolute and relative return on equity goals over a three-year period compared to performance targets. Distribution of the shares is then made after vesting.

Performance stock unit grants totaled 219,314, 211,906, and 204,539 for the years ended December 31, 2023, 2022, and 2021, respectively, with weighted average grant-date fair values of $93.97, $113.64, and $97.77. Performance stock units outstanding at target level performance totaled 613,450, 607,892, and 622,817 at December 31, 2023, 2022, and 2021, respectively. Performance stock units had aggregate intrinsic values of $51.8 million, $53.8 million, and $74.5 million, and weighted average remaining vesting terms of 1.0 year each at December 31, 2023, 2022, and 2021, respectively.

Non-employee Director Stock Awards. Stock units with total values of $1.6 million (20,405 units), $1.6 million (14,773 units), and $1.5 million (13,968 units) were granted to non-employee directors in 2023, 2022, and 2021, respectively, which vest or vested on the date of the annual meeting of the Corporation’s stockholders in the following years. Total expense recognized on these grants was $1.7 million, $1.7 million, and $1.6 million in 2023, 2022, and 2021, respectively. Stock units granted to non-employee directors do not have voting rights. Each stock unit entitles a director to one share of common stock at vesting, unless a director elects to defer receipt of the shares. Directors may elect to defer the payment of their annual stock unit grant and cash-based compensation until termination of services as director. Deferred cash compensation is converted into stock units representing shares of common stock of the Corporation. Distributions of deferred stock units are made in stock. For compensation deferred prior to January 1, 2018, distributions of the stock unit accounts that relate to cash-based compensation are made in cash based on the fair value of the stock units at the time of distribution. For compensation deferred on or after January 1, 2018, distributions of the stock unit accounts that relate to cash-based compensation are made in stock.

Note 23 – Cash-Based Compensation Plans

Various incentive plans provide for cash incentives and bonuses to selected employees based upon accomplishment of corporate net income objectives, goals of the reporting segments and support functions, and individual performance. The provision for awards under these plans is charged to Compensation expense and totaled $358.7 million in 2023, $392.7 million in 2022, and $377.1 million in 2021.

Note 24 – Commitments and Contingent Liabilities

Off-Balance Sheet Financial Instruments, Guarantees and Other Commitments. Northern Trust, in the normal course of business, enters into various types of commitments and issues letters of credit to meet the liquidity and credit enhancement needs of its clients. The contractual amounts of these instruments represent the maximum potential credit exposure should the instrument be fully drawn upon and the client default. To control the credit risk associated with entering into commitments and issuing letters of credit, Northern Trust subjects such activities to the same credit quality and monitoring controls as its lending activities. Northern Trust does not believe the total contractual amount of these instruments to be representative of its future credit exposure or funding requirements.

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The following table provides details of Northern Trust's off-balance sheet financial instruments as of December 31, 2023 and 2022.

TABLE 115: SUMMARY OF OFF-BALANCE SHEET FINANCIAL INSTRUMENTS

DECEMBER 31,
20232022
(In Millions)ONE YEAR AND LESSOVER ONE YEARTOTALONE YEAR AND LESSOVER ONE YEARTOTAL
Undrawn Commitments(1)$11,849.5$18,909.6$30,759.1$13,639.2$17,321.4$30,960.6
Standby Letters of Credit and Financial Guarantees(2)(3)85,752.0639.086,391.017,553.0409.917,962.9
Commercial Letters of Credit29.21.330.525.41.326.7
Securities Lent with Indemnification140,539.1—140,539.1130,311.0—130,311.0
Unsettled Reverse Repurchase Agreements27,667.7—27,667.7496.8—496.8
Total Off-Balance Sheet Financial Instruments$265,837.5$19,549.9$285,387.4$162,025.4$17,732.6$179,758.0

(1) These amounts exclude $222.2 million and $266.6 million of commitments participated to others at December 31, 2023 and 2022, respectively.

(2) These amounts include $39.1 million and $35.1 million of standby letters of credit secured by cash deposits or participated to others as of December 31, 2023 and 2022, respectively.

(3) This amount includes a $84.6 billion guarantee to the Fixed Income Clearing Corporation (FICC) under the sponsored member program, without taking into consideration the related collateral, as of December 31, 2023. As of December 31, 2022, there was a $16.3 billion guarantee to the FICC; Northern Trust became a sponsored member during the third quarter of 2021.

Undrawn Commitments generally have fixed expiration dates or other termination clauses. Since a significant portion of the commitments are expected to expire without being drawn upon, the total commitment amount does not necessarily represent future loans or liquidity requirements.

Standby Letters of Credit obligate Northern Trust to meet certain financial obligations of its clients, if, under the contractual terms of the agreement, the clients are unable to do so. These instruments are primarily issued to support public and private financial commitments, including commercial paper, bond financing, initial margin requirements on futures exchanges, and similar transactions. Northern Trust is obligated to meet the entire financial obligation of these agreements and in certain cases is able to recover the amounts paid through recourse against collateral received or other participants. Since the vast majority of the standby letters of credit are never drawn, the total standby letters of credit amount does not necessarily represent future loans or liquidity requirements.

Financial Guarantees are issued by Northern Trust to guarantee the performance of a client to a third party under certain arrangements.

Commercial Letters of Credit are instruments issued by Northern Trust on behalf of its clients that authorize a third party (the beneficiary) to draw drafts up to a stipulated amount under the specified terms and conditions of the agreement and other similar instruments. Commercial letters of credit are issued primarily to facilitate international trade.

Securities Lent with Indemnification involves Northern Trust lending securities owned by clients to borrowers who are reviewed and approved by the Northern Trust Capital Markets Credit Committee, as part of its securities custody activities and at the direction of its clients. In connection with these activities, Northern Trust has issued indemnifications to certain clients against certain losses that are a direct result of a borrower’s failure to return securities when due, should the value of such securities exceed the value of the collateral required to be posted. Borrowers are required to fully collateralize securities received with cash or marketable securities. As securities are loaned, collateral is maintained at a minimum of 100% of the fair value of the securities plus accrued interest. The collateral is revalued on a daily basis. The amount of securities loaned subject to indemnification as of December 31, 2023 and December 31, 2022, was $140.5 billion and $130.3 billion, respectively. Because of the credit quality of the borrowers and the requirement to fully collateralize securities borrowed, management believes that the exposure to credit loss from this activity is not significant and no liability was recorded at December 31, 2023, or 2022 related to these indemnifications.

Unsettled Repurchase and Reverse Repurchase Agreements**.** Northern Trust enters into repurchase agreements and reverse repurchase agreements which may settle at a future date. In repurchase agreements, Northern Trust receives cash from and provides securities as collateral to a counterparty. In reverse repurchase agreements, Northern Trust advances cash to and receives securities as collateral from a counterparty. These transactions are recorded on the consolidated balance sheets on the settlement date. As of December 31, 2023, and 2022, there were $27.7 billion and $496.8 million of unsettled reverse repurchase agreements, and no unsettled repurchase agreements, respectively.

Sponsored Member Program. Northern Trust is an approved Government Securities Division (GSD) netting and sponsoring member in the Fixed Income Clearing Corporation (FICC) sponsored member program, through which Northern Trust submits eligible repurchase and reverse repurchase transactions in U.S. government securities between Northern Trust and its sponsored member clients for novation and clearing. Northern Trust may sponsor clients to clear

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their eligible repurchase transactions with the FICC. As a sponsoring member, Northern Trust guarantees to the FICC the prompt and full payment and performance of its sponsored member clients’ respective obligations under the FICC GSD’s rules. To mitigate Northern Trust’s credit exposure under this guarantee, Northern Trust obtains a security interest in its sponsored member clients’ collateral. Please refer to Note 27, “Offsetting of Assets and Liabilities” for additional information on Northern Trust’s repurchase and reverse repurchase agreements.

Clearing and Settlement Organizations. The Bank is a participating member of various cash, securities and foreign exchange clearing and settlement organizations. It participates in these organizations on behalf of its clients and on its own behalf as a result of its own activities. A wide variety of cash and securities transactions are settled through these organizations, including those involving U.S. Treasuries, obligations of states and political subdivisions, asset-backed securities, commercial paper, dollar placements, and securities issued by the Government National Mortgage Association.

Certain of these industry clearing and settlement exchanges require their members to guarantee their obligations and liabilities and/or to provide liquidity support in the event other members do not honor their obligations as stipulated in each clearing organization’s membership agreement. Exposure related to these agreements varies, primarily as a result of fluctuations in the volume of transactions cleared through the organizations. At December 31, 2023 and 2022, Northern Trust has not recorded any material liabilities under these arrangements as Northern Trust believes the likelihood that a clearing or settlement exchange (of which Northern Trust is a member) would become insolvent is remote. Controls related to these clearing transactions are closely monitored by management to protect the assets of Northern Trust and its clients.

Legal Proceedings. In the normal course of business, the Corporation and its subsidiaries are routinely defendants in or parties to pending and threatened legal actions, and are subject to regulatory examinations, information-gathering requests, investigations, and proceedings, both formal and informal. In certain legal actions, claims for substantial monetary damages are asserted. In regulatory matters, claims for disgorgement, restitution, penalties and/or other remedial actions or sanctions may be sought.

Based on current knowledge, after consultation with legal counsel and after taking into account current accruals, management does not believe that losses, fines or penalties, if any, arising from pending litigation or threatened legal actions or regulatory matters either individually or in the aggregate, after giving effect to applicable reserves and insurance coverage will have a material adverse effect on the consolidated financial position or liquidity of the Corporation, although such matters could have a material adverse effect on the Corporation’s operating results for a particular period.

Under GAAP, (i) an event is “probable” if the “future event or events are likely to occur”; (ii) an event is “reasonably possible” if “the chance of the future event or events occurring is more than remote but less than likely”; and (iii) an event is “remote” if “the chance of the future event or events occurring is slight.”

The outcome of litigation and regulatory matters is inherently difficult to predict and/or the range of loss often cannot be reasonably estimated, particularly for matters that (i) will be decided by a jury, (ii) are in early stages, (iii) involve uncertainty as to the likelihood of a class being certified or the ultimate size of the class, (iv) are subject to appeals or motions, (v) involve significant factual issues to be resolved, including with respect to the amount of damages, (vi) do not specify the amount of damages sought or (vii) seek very large damages based on novel and complex damage and liability legal theories. Accordingly, the Corporation cannot reasonably estimate the eventual outcome of these pending matters, the timing of their ultimate resolution or what the eventual loss, fines or penalties, if any, related to each pending matter will be.

In accordance with applicable accounting guidance, the Corporation records accruals for litigation and regulatory matters when those matters present loss contingencies that are both probable and reasonably estimable. When loss contingencies are not both probable and reasonably estimable, the Corporation does not record accruals. No material accruals have been recorded for pending litigation or threatened legal actions or regulatory matters.

For a limited number of matters for which a loss is reasonably possible in future periods, whether in excess of an accrued liability or where there is no accrued liability, the Corporation is able to estimate a range of possible loss. As of December 31, 2023, the Corporation has estimated the range of reasonably possible loss for these matters to be from zero to approximately $25 million in the aggregate. The Corporation’s estimate with respect to the aggregate range of reasonably possible loss is based upon currently available information and is subject to significant judgment and a variety of assumptions and known and unknown uncertainties. The matters underlying the estimated range will change from time to time, and actual results may vary significantly from the current estimate.

In certain other pending matters, there may be a range of reasonably possible loss (including reasonably possible loss in excess of amounts accrued) that cannot be reasonably estimated for the reasons described above. Such matters are not included in the estimated range of reasonably possible loss discussed above.

In 2015, Northern Trust Fiduciary Services (Guernsey) Limited (NTFS), an indirect subsidiary of the Corporation, was charged by a French investigating magistrate judge with complicity in estate tax fraud in connection with the administration of two trusts for which it serves as trustee. Charges also were brought against a number of other persons and

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

entities related to this matter. In 2017, a French court found no estate tax fraud had occurred and NTFS and all other persons and entities charged were acquitted. The Public Prosecutor’s Office of France appealed the court decision and in June 2018 a French appellate court issued its opinion on the matter, acquitting all persons and entities charged, including NTFS. In January 2021, the Cour de Cassation, the highest court in France, reversed the June 2018 appellate court ruling, requiring a re-trial at the appellate court level. This re-trial concluded in October 2023 and the appellate court is expected to render its verdict in March 2024. As trustee, NTFS provided no tax advice and had no involvement in the preparation or filing of the challenged estate tax filings.

Visa Class B Common Shares. Northern Trust, as a member of Visa U.S.A. Inc. (Visa U.S.A.) and in connection with the 2007 restructuring of Visa U.S.A. and its affiliates and the 2008 initial public offering of Visa Inc. (Visa), received certain Visa Class B common shares. The Visa Class B common shares are subject to certain transfer restrictions until the final resolution of certain litigation related to interchange fees involving Visa (the covered litigation), at which time the shares are convertible into Visa Class A common shares based on a conversion rate dependent upon the ultimate cost of resolving the covered litigation. Since 2018, Visa has deposited an additional $2.8 billion into an escrow account previously established with respect to the covered litigation. As a result of the additional contributions to the escrow account, the rate at which Visa Class B common shares will convert into Visa Class A common shares was reduced to 1.5875 as of December 31, 2023.

In September 2018, Visa reached a proposed class settlement agreement covering damage claims but not injunctive relief claims regarding the covered litigation. In December 2019, the district court granted final approval for the proposed class settlement agreement. In March 2023, the Second Circuit Court of Appeals affirmed the district court’s approval of the class settlement agreement. Certain merchants have opted out of the class settlement and are pursuing claims separately. The ultimate resolution of the covered litigation, the timing for removal of the selling restrictions on the Visa Class B common shares and the rate at which such shares will ultimately convert into Visa Class A common shares are uncertain.

On January 29, 2024, Visa filed a registration statement under the Securities Act of 1933 with the SEC. This registration statement has not yet become effective. If Visa commences the exchange offer contemplated by the registration statement, Visa Class B shareholders would have the option to tender some or all of their Class B shares and in return receive shares of a newly issued series of Visa Class B common shares with a value equal to half the value of the tendered shares and Visa Class C common shares with value equal to the other half of the tendered shares. The newly issued series of Visa Class B common shares would be subject to the same transfer and convertibility restrictions as the currently outstanding Visa Class B common shares. One third of the Visa Class C common shares received would be transferable within the first 45 days following the potential exchange, up to two-thirds would be transferable within the first 90 days, and all such shares would be transferable after 90 days. The Visa Class C common shares will automatically be converted at the then applicable conversion rate into shares of Visa Class A common stock if transferred to a person other than a Visa member or an affiliate of a Visa member. After the initial exchange offer, Visa could, at its discretion, conduct up to three successive potential exchange offers, in each case, if more than 12 months have passed since the previous exchange offer and after a further 50% reduction of interchange fees at issue in the unresolved claims for damages in the covered litigation.

In June 2016 and 2015, Northern Trust recorded a $123.1 million and $99.9 million net gain on the sale of 1.1 million and 1.0 million of its Visa Class B common shares, respectively. These sales do not affect Northern Trust’s risk related to the impact of the covered litigation on the rate at which such shares will ultimately convert into Visa Class A common shares. Northern Trust continued to hold approximately 4.1 million Visa Class B common shares, which are recorded at their original cost basis of zero, as of both December 31, 2023 and 2022.

Note 25 – Derivative Financial Instruments

Northern Trust is a party to various derivative financial instruments that are used in the normal course of business to meet the needs of its clients, as part of its trading activity for its own account; and as part of its risk management activities. These instruments may include foreign exchange contracts, interest rate contracts, total return swap contracts, and swaps related to the sale of certain Visa Class B common shares. Please refer to Note 1, “Summary of Significant Accounting Policies” for the significant accounting policies for derivative financial instruments.

Foreign exchange contracts are agreements to exchange specific amounts of currencies at a future date, at a specified rate of exchange. Foreign exchange contracts are entered into primarily to meet the foreign exchange needs of clients. Foreign exchange contracts are also used for trading and risk management purposes. For risk management purposes, Northern Trust uses foreign exchange contracts to reduce its exposure to changes in foreign exchange rates relating to certain forecasted non-functional-currency-denominated revenue and expenditure transactions, foreign-currency- denominated assets and liabilities, including debt securities and net investments in non-U.S. affiliates.

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Interest rate contracts include swap and option contracts. Interest rate swap contracts involve the exchange of fixed and floating rate interest payment obligations without the exchange of the underlying principal amounts. Northern Trust enters into interest rate swap contracts with its clients and also may utilize such contracts to reduce or eliminate the exposure to changes in the cash flows or fair value of hedged assets or liabilities due to changes in interest rates. Interest rate option contracts may include caps, floors, collars and swaptions, and provide for the transfer or reduction of interest rate risk, typically in exchange for a fee. Northern Trust enters into option contracts primarily as a seller of interest rate protection to clients. Northern Trust receives a fee at the outset of the agreement for the assumption of the risk of an unfavorable change in interest rates. This assumed interest rate risk is then mitigated by entering into an offsetting position with an outside counterparty. Northern Trust may also purchase or enter into option contracts for risk management purposes including to reduce the exposure to changes in the cash flows of hedged assets due to changes in interest rates.

The following table shows the notional and fair values of all derivative financial instruments as of December 31, 2023

and 2022.

TABLE 116: NOTIONAL AND FAIR VALUES OF DERIVATIVE FINANCIAL INSTRUMENTS

DECEMBER 31, 2023DECEMBER 31, 2022
FAIR VALUEFAIR VALUE
(In Millions)NOTIONAL VALUEASSET**(1)**LIABILITY**(2)**NOTIONAL VALUEASSET(1)LIABILITY(2)
Derivatives Designated as Hedging under GAAP
Interest Rate Contracts
Fair Value Hedges$7,042.7$94.7$71.0$4,622.0$58.5$32.7
Foreign Exchange Contracts
Cash Flow Hedges1,453.615.042.2150.97.45.7
Net Investment Hedges4,077.413.331.93,765.0283.512.7
Total Derivatives Designated as Hedging under GAAP$12,573.7$123.0$145.1$8,537.9$349.4$51.1
Derivatives Not Designated as Hedging under GAAP
Non-Designated Risk Management Derivatives
Foreign Exchange Contracts$20.7$—$0.1$55.9$0.1$0.1
Other Financial Derivatives(3)867.9—25.4717.70.334.8
Total Non-Designated Risk Management Derivatives$888.6$—$25.5$773.6$0.4$34.9
Client-Related and Trading Derivatives
Foreign Exchange Contracts$313,336.9$3,238.4$3,181.0$288,994.6$3,219.1$3,169.0
Interest Rate Contracts13,584.1206.8298.212,378.2163.5399.1
Total Client-Related and Trading Derivatives$326,921.0$3,445.2$3,479.2$301,372.8$3,382.6$3,568.1
Total Derivatives Not Designated as Hedging under GAAP$327,809.6$3,445.2$3,504.7$302,146.4$3,383.0$3,603.0
Total Gross Derivatives$340,383.3$3,568.2$3,649.8$310,684.3$3,732.4$3,654.1
Less: Netting(4)3,126.72,205.42,810.71,865.9
Total Derivative Financial Instruments$441.5$1,444.4$921.7$1,788.2

(1) Derivative assets are reported in Other Assets on the consolidated balance sheets.

(2) Derivative liabilities are reported in Other Liabilities on the consolidated balance sheets.

(3) This line includes swaps related to sales of certain Visa Class B common shares and total return swap contracts.

(4) See further detail in Note 27, "Offsetting of Assets and Liabilities."

Notional amounts of derivative financial instruments do not represent credit risk, and are not recorded on the consolidated balance sheets. They are used merely to express the volume of this activity. Northern Trust’s credit-related risk of loss is limited to the positive fair value of the derivative instrument, net of any collateral received, which is significantly less than the notional amount.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Hedging Derivative Instruments Designated under GAAP. Northern Trust uses derivative instruments to hedge its exposure to foreign currency, interest rate, and equity price. Certain hedging relationships are formally designated and qualify for hedge accounting under GAAP as fair value, cash flow or net investment hedges. Other derivatives that are entered into for risk management purposes as economic hedges are not formally designated as hedges and changes in fair value are recognized currently in Other Operating Income within the consolidated statements of income (see below section “Derivative Instruments Not Designated as Hedging under GAAP”).

Fair Value Hedges. Derivatives are designated as fair value hedges to limit Northern Trust’s exposure to changes in the fair value of assets and liabilities due to movements in interest rates.

Cash Flow Hedges. Derivatives are also designated as cash flow hedges in order to minimize the variability in cash flows of earning assets or forecasted transactions caused by movements in interest or foreign exchange rates.

There were no material gains or losses reclassified into earnings during the years ended December 31, 2023, 2022, and 2021 as a result of the discontinuance of cash flow hedges of forecasted transactions that were no longer probable of occurring. It is estimated that net losses of $27.3 million will be reclassified into Net Income within the next twelve months relating to cash flow hedges of foreign-currency-denominated debt securities. As of December 31, 2023, 4 months was the maximum length of time over which the exposure to variability in future cash flows of forecasted foreign-currency-denominated debt securities was being hedged.

The following table provides fair value and cash flow hedge derivative gains and losses recognized in income during the years ended December 31, 2023, 2022 and 2021.

TABLE 117: LOCATION AND AMOUNT OF FAIR VALUE AND CASH FLOW HEDGE DERIVATIVE GAINS AND LOSSES RECORDED IN INCOME

(In Millions)INTEREST INCOMEINTEREST EXPENSEOTHER OPERATING INCOME
For the Year Ended December 31,202320222021202320222021202320222021
Total amounts on the consolidated statements of income$7,325.0$2,877.7$1,406.5$5,343.0$990.5$23.8$228.7$191.3$243.9
Gains (Losses) on fair value hedges recognized on
Interest Rate Contracts
Recognized on derivatives(132.6)82.839.174.9(373.4)(161.6)———
Recognized on hedged items132.6(82.8)(39.1)(74.9)373.4161.6———
Amounts related to interest settlements on derivatives47.1(4.4)(16.2)(86.5)24.157.1———
Total gains (losses) recognized on fair value hedges$47.1$(4.4)$(16.2)$(86.5)$24.1$57.1$—$—$—
Gains (Losses) on cash flow hedges recognized on
Foreign Exchange Contracts
Net gains (losses) reclassified from AOCI to net income$34.9$0.6$10.5$—$—$—$1.9$(4.3)$(6.0)
Total gains (losses) reclassified from AOCI to net income on cash flow hedges$34.9$0.6$10.5$—$—$—$1.9$(4.3)$(6.0)
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The following table provides the impact of fair value hedge accounting on the carrying value of the designated hedged items, which includes hedged items no longer designated.

TABLE 118: HEDGED ITEMS IN FAIR VALUE HEDGES

DECEMBER 31, 2023DECEMBER 31, 2022
(In Millions)CARRYING VALUE OF THE HEDGED ITEMSCUMULATIVE HEDGE ACCOUNTING BASIS ADJUSTMENT**(1)(3)**CARRYING VALUE OF THE HEDGED ITEMSCUMULATIVE HEDGE ACCOUNTING BASIS ADJUSTMENT(2)(3)
Available for Sale Debt Securities(4)$5,048.8$77.5$1,820.8$(60.2)
Senior Notes and Long-Term Subordinated Debt2,495.9(248.7)2,746.2(294.0)

(1) The cumulative hedge accounting basis adjustment includes $2.2 million related to discontinued hedging relationships of AFS debt securities and $29.6 million related to discontinued hedging relationships in the cumulative hedge accounting basis adjustment of senior notes and long-term debt as of December 31, 2023.

(2) The cumulative hedge accounting basis adjustment includes $7.3 million related to discontinued hedging relationships of AFS debt securities as of December 31, 2022. There were no amounts related to discontinued hedging relationships in the cumulative hedge accounting basis adjustment of senior notes and long-term debt as of December 31, 2022.

(3) Positive (negative) amounts related to AFS securities represent cumulative fair value hedge basis adjustments that will reduce (increase) net interest income in future periods. Positive (negative) amounts related to Senior Notes and Long-Term Subordinated Debt represent cumulative fair value hedge basis adjustments that will increase (reduce) net interest income in future periods.

(4) Carrying value represents amortized cost.

Net Investment Hedges. Certain foreign exchange contracts are designated as net investment hedges to minimize Northern Trust’s exposure to variability in the foreign currency translation of net investments in non-U.S. branches and subsidiaries. Net investment hedge losses of $77.4 million and net investment hedge gains of $278.7 million were recognized in AOCI related to foreign exchange contracts for the years ended December 31, 2023 and 2022, respectively.

Derivative Instruments Not Designated as Hedging under GAAP. Northern Trust’s derivative instruments that are not designated as hedging under GAAP include derivatives for purposes of client-related and trading activities, as well as other risk management purposes. These activities consist principally of providing foreign exchange services to clients in connection with Northern Trust’s global custody business. However, in the normal course of business, Northern Trust also engages in trading of currencies for its own account.

Non-designated risk management derivatives include foreign exchange contracts entered into to manage the foreign currency risk of non-U.S.-dollar-denominated assets and liabilities, the net investment in certain non-U.S. affiliates, commercial loans, and forecasted foreign-currency-denominated transactions. Swaps related to sales of certain Visa Class B common shares were entered into pursuant to which Northern Trust retains the risks associated with the ultimate conversion of the Visa Class B common shares into Visa Class A common shares. Total return swaps are entered into to manage the equity price risk associated with certain investments.

Changes in the fair value of derivative instruments not designated as hedges under GAAP are recognized currently in income. The following table provides the location and amount of gains and losses recorded on the consolidated statements of income for the years ended December 31, 2023, 2022, and 2021 for derivative instruments not designated as hedges under GAAP.

TABLE 119: LOCATION AND AMOUNT OF GAINS AND LOSSES RECORDED IN INCOME FOR DERIVATIVES NOT DESIGNATED AS HEDGING UNDER GAAP

(In Millions)DERIVATIVE GAINS (LOSSES) LOCATION RECOGNIZED IN INCOMEAMOUNT OF DERIVATIVE GAINS (LOSSES) RECOGNIZED IN INCOME
202320222021
Non-designated risk management derivatives
Foreign Exchange ContractsOther Operating Income$1.8$(3.1)$1.2
Other Financial Derivatives(1)Other Operating Income(21.2)(22.2)(21.3)
Gains (Losses) from non-designated risk management derivatives$(19.4)$(25.3)$(20.1)
Client-related and trading derivatives
Foreign Exchange ContractsForeign Exchange Trading Income$203.9$288.6$292.6
Interest Rate ContractsSecurity Commissions and Trading Income8.99.615.7
Gains (Losses) from client-related and trading derivatives$212.8$298.2$308.3
Total gains (losses) from derivatives not designated as hedging under GAAP$193.4$272.9$288.2

(1) This line includes swaps related to the sale of certain Visa Class B common shares and total return swap contracts.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 159

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 26 – Securities Purchased Under Agreements to Resell and Securities Sold Under Agreements to Repurchase

Securities purchased under agreements to resell and securities sold under agreements to repurchase are accounted for as collateralized financings and recorded at the amounts at which the securities were acquired or sold plus accrued interest. To minimize any potential credit risk associated with these transactions, the fair value of the securities purchased or sold is monitored, limits are set on exposure with counterparties, and the financial condition of counterparties is regularly assessed. It is Northern Trust’s policy to take possession, either directly or via third-party custodians, of securities purchased under agreements to resell. Securities sold under agreements to repurchase are either directly held by, or pledged to the counterparty until the repurchase. Northern Trust nets securities sold under repurchase agreements against those purchased under resale agreements when there is a legally enforceable master netting arrangement and the other conditions to net are met.

The following tables summarize information related to Securities Purchased under Agreements to Resell and Securities Sold under Agreements to Repurchase.

TABLE 120: SECURITIES PURCHASED UNDER AGREEMENTS TO RESELL

($ In Millions)20232022
Balance at December 31$784.7$1,070.3
Average Balance During the Year950.91,071.2
Average Interest Rate Earned During the Year166.71%9.68%
Maximum Month-End Balance During the Year$1,326.2$1,320.8

Note: The table above includes the impact of balance sheet netting of approximately $29.1 billion and $3.6 billion in 2023 and 2022, respectively.

TABLE 121: SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE

($ In Millions)20232022
Balance at December 31$784.7$567.2
Average Balance During the Year401.5433.6
Average Interest Rate Paid During the Year383.84%20.94%
Maximum Month-End Balance During the Year$988.1$869.0

Note: The table above includes the impact of balance sheet netting of approximately $29.1 billion and $3.6 billion in 2023 and 2022, respectively.

TABLE 122: REPURCHASE AGREEMENTS ACCOUNTED FOR AS SECURED BORROWINGS

REMAINING CONTRACTUAL MATURITY OF THE AGREEMENTS
OVERNIGHT AND CONTINUOUS
(In Millions)December 31, 2023December 31, 2022
U.S. Treasury and Agency Securities$784.7$567.2
Total Borrowings784.7567.2
Net Amount of Recognized Liabilities for Repurchase Agreements in Note 27784.7567.2
160 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 27 – Offsetting of Assets and Liabilities

The following table provides information regarding the offsetting of derivative assets and of securities purchased under agreements to resell within the consolidated balance sheets as of December 31, 2023 and 2022.

TABLE 123: OFFSETTING OF DERIVATIVE ASSETS AND SECURITIES PURCHASED UNDER AGREEMENTS TO RESELL

DECEMBER 31, 2023
(In Millions)GROSS RECOGNIZED ASSETSGROSS AMOUNTS OFFSET IN THE BALANCE SHEET**(3)**NET AMOUNTS PRESENTED IN THE BALANCE SHEETGROSS AMOUNTS NOT OFFSET IN THE BALANCE SHEET**(4)**NET AMOUNT**(5)**
Derivative Assets(1)
Foreign Exchange Contracts Over the Counter (OTC)$3,006.3$2,937.2$69.1$12.2$56.9
Interest Rate Swaps OTC301.4189.5111.9—111.9
Interest Rate Swaps Exchange Cleared0.1—0.1—0.1
Total Derivatives Subject to a Master Netting Arrangement3,307.83,126.7181.112.2168.9
Total Derivatives Not Subject to a Master Netting Arrangement260.4—260.4—260.4
Total Derivatives3,568.23,126.7441.512.2429.3
Securities Purchased under Agreements to Resell(2)$62,860.2$62,075.5$784.7$—$784.7
DECEMBER 31, 2022
(In Millions)GROSS RECOGNIZED ASSETSGROSS AMOUNTS OFFSET IN THE BALANCE SHEET(3)NET AMOUNTS PRESENTED IN THE BALANCE SHEETGROSS AMOUNTS NOT OFFSET IN THE BALANCE SHEET(4)NET AMOUNT(5)
Derivative Assets(1)
Foreign Exchange Contracts OTC$2,928.9$2,666.4$262.5$5.0$257.5
Interest Rate Swaps OTC217.6144.373.3—73.3
Interest Rate Swaps Exchange Cleared4.4—4.4—4.4
Other Financial Derivatives0.3—0.3—0.3
Total Derivatives Subject to a Master Netting Arrangement3,151.22,810.7340.55.0335.5
Total Derivatives Not Subject to a Master Netting Arrangement581.2—581.2—581.2
Total Derivatives3,732.42,810.7921.75.0916.7
Securities Purchased under Agreements to Resell(2)$12,494.2$11,423.9$1,070.3$1,070.3$—

(1) Derivative assets are reported in Other Assets on the consolidated balance sheets. Other Assets (excluding derivative assets) totaled $10.3 billion and $8.9 billion as of December 31, 2023 and 2022, respectively.

(2) Offsetting of Securities Purchased under Agreements to Resell primarily relates to our involvement in the FICC.

(3) Including cash collateral received from counterparties.

(4) Including financial assets accepted as collateral which are received from counterparties.

(5) Northern Trust did not possess any cash collateral that was not offset on the consolidated balance sheets that could have been used to offset the net amounts presented on the consolidated balance sheets as of December 31, 2023 and 2022.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 161

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table provides information regarding the offsetting of derivative liabilities and of securities sold under agreements to repurchase within the consolidated balance sheets as of December 31, 2023 and 2022.

TABLE 124: OFFSETTING OF DERIVATIVE LIABILITIES AND SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE

DECEMBER 31, 2023
(In Millions)GROSS RECOGNIZED LIABILITIESGROSS AMOUNTS OFFSET IN THE BALANCE SHEET**(3)**NET AMOUNTS PRESENTED IN THE BALANCE SHEETGROSS AMOUNTS NOT OFFSET IN THE BALANCE SHEET**(4)**NET AMOUNT**(5)**
Derivative Liabilities(1)
Foreign Exchange Contracts OTC$2,411.7$2,175.7$236.0$—$236.0
Interest Rate Swaps OTC368.36.0362.3—362.3
Interest Rate Swaps Exchange Cleared0.9—0.9—0.9
Other Financial Derivatives25.423.71.7—1.7
Total Derivatives Subject to a Master Netting Arrangement2,806.32,205.4600.9—600.9
Total Derivatives Not Subject to a Master Netting Arrangement843.5—843.5—843.5
Total Derivatives3,649.82,205.41,444.4—1,444.4
Securities Sold under Agreements to Repurchase(2)$62,860.2$62,075.5$784.7$784.7$—
DECEMBER 31, 2022
(In Millions)GROSS RECOGNIZED LIABILITIESGROSS AMOUNTS OFFSET IN THE BALANCE SHEET(3)NET AMOUNTS PRESENTED IN THE BALANCE SHEETGROSS AMOUNTS NOT OFFSET IN THE BALANCE SHEET(4)NET AMOUNT(5)
Derivative Liabilities(1)
Foreign Exchange Contracts OTC$2,082.3$1,826.7$255.6$—$255.6
Interest Rate Swaps OTC426.55.9420.6—420.6
Interest Rate Swaps Exchange Cleared5.3—5.3—5.3
Other Financial Derivatives34.833.31.5—1.5
Total Derivatives Subject to a Master Netting Arrangement2,548.91,865.9683.0—683.0
Total Derivatives Not Subject to a Master Netting Arrangement1,105.2—1,105.2—1,105.2
Total Derivatives3,654.11,865.91,788.2—1,788.2
Securities Sold under Agreements to Repurchase(2)$11,991.1$11,423.9$567.2$567.2$—

(1) Derivative liabilities are reported in Other Liabilities on the consolidated balance sheets. Other Liabilities (excluding derivative liabilities) totaled $4.0 billion and $3.2 billion as of December 31, 2023 and 2022, respectively.

(2) Offsetting of Securities Sold under Agreements to Repurchase primarily relates to our involvement in the FICC.

(3) Including cash collateral deposited with counterparties.

(4) Including financial assets accepted as collateral which are deposited with counterparties.

(5) Northern Trust did not place any cash collateral with counterparties that was not offset on the consolidated balance sheets that could have been used to offset the net amounts presented on the consolidated balance sheets as of December 31, 2023 and 2022.

All of Northern Trust’s securities sold under agreements to repurchase (repurchase agreements) and securities purchased under agreements to resell (reverse repurchase agreements) involve the transfer of financial assets in exchange for cash subject to a right and obligation to repurchase those assets for an agreed upon amount. In the event of a repurchase failure, the cash or financial assets are available for offset. All of Northern Trust’s repurchase agreements and reverse repurchase agreements are subject to a master netting arrangement, which sets forth the rights and obligations for repurchase and offset. Under the master netting arrangement, Northern Trust is entitled to set off receivables from and collateral placed with a single counterparty against obligations owed to that counterparty. In addition, collateral held by Northern Trust can be offset against receivables from that counterparty. Northern Trust has elected to net securities sold under repurchase agreements against those purchased under resale agreements when the GAAP requirements to net are met.

Derivative asset and liability positions with a single counterparty can be offset against each other in cases where legally enforceable master netting arrangements or similar agreements exist. Derivative assets and liabilities can be further offset by cash collateral received from, and deposited with, the transacting counterparty. The basis for this view is that, upon termination of transactions subject to a master netting arrangement or similar agreement, the individual derivative receivables do not represent resources to which general creditors have rights and individual derivative payables do not represent claims that are equivalent to the claims of general creditors. Northern Trust has elected to net derivative assets

162 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

and liabilities when legally enforceable master netting arrangements or similar agreements exist between Northern Trust and the counterparty.

Credit risk associated with derivative instruments relates to the failure of the counterparty and the failure of Northern Trust to pay based on the contractual terms of the agreement, and is generally limited to the unrealized fair value gains and losses on these instruments, net of any collateral received or deposited. The amount of credit risk will increase or decrease during the lives of the instruments as interest rates, foreign exchange rates, or equity prices fluctuate. Northern Trust’s risk is controlled by limiting such activity to an approved list of counterparties and by subjecting such activity to the same credit and quality controls as are followed in lending and investment activities. Credit support annexes and other similar agreements are currently in place with a number of Northern Trust’s counterparties which mitigate the aforementioned credit risk associated with derivative activity conducted with those counterparties by requiring that significant net unrealized fair value gains be supported by collateral placed with Northern Trust.

Additional cash collateral received from and deposited with derivative counterparties totaling $373.1 million and $21.3 million, respectively, as of December 31, 2023, and $131.8 million and $26.3 million, respectively, as of December 31, 2022, was not offset against derivative assets and liabilities on the consolidated balance sheets as the amounts exceeded the net derivative positions with those counterparties.

Certain master netting arrangements Northern Trust enters into with derivative counterparties contain credit risk-related contingent features in which the counterparty has the option to declare Northern Trust in default and accelerate cash settlement of net derivative liabilities with the counterparty in the event Northern Trust’s credit rating falls below specified levels. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position was $1.2 billion and $190.9 million at December 31, 2023 and 2022, respectively. Cash collateral amounts deposited with derivative counterparties on those dates included $1.1 billion and $55.1 million, respectively, posted against these liabilities, resulting in a net maximum amount of termination payments that could have been required at December 31, 2023 and 2022 of $52.2 million and $135.8 million, respectively. Accelerated settlement of these liabilities would not have a material effect on the consolidated financial position or liquidity of Northern Trust.

Note 28 – Variable Interest Entities

Northern Trust is involved with various entities in the normal course of business that are deemed to be variable interest entities (VIEs). VIEs are defined within GAAP as entities which either (1) lack sufficient equity at risk to permit the entity to finance its activities without additional subordinated financial support, (2) have equity investors that lack attributes typical of an equity investor, such as the ability to make significant decisions through voting rights affecting the entity’s operations, or the obligation to absorb expected losses or the right to receive residual returns of the entity, or (3) are structured with voting rights that are disproportionate to the equity investor’s obligation to absorb losses or right to receive returns, and substantially all of the activities are conducted on behalf of the holder of the equity investment at risk with disproportionately few voting rights. Investors that finance a VIE through debt or equity interests are variable interest holders in the entity and the variable interest holder, if any, that has both the power to direct the activities that most significantly impact the entity’s economic performance and, through its variable interest, the obligation to absorb losses or the right to receive returns that could potentially be significant to the entity is deemed to be the VIE’s primary beneficiary and is required to consolidate the VIE.

Tax credit structures. Northern Trust holds tax-advantaged investments in unconsolidated entities that own and operate affordable housing and other community development projects. These entities, which are limited partnerships and similar entities, are primarily VIEs and are designed to generate a return primarily through the realization of tax credits and other tax benefits, such as tax deductions from operating losses of the investments. Northern Trust invests as a limited partner/investor member and lacks both the power to direct the entities’ most significant activities and the obligation to absorb losses or right to receive benefits that could potentially be significant to the entities. Northern Trust is not required to consolidate these entities as it does not have a controlling financial interest and thus is not the primary beneficiary.

Northern Trust’s maximum exposure to loss as a result of its involvement with these entities is limited to the carrying amounts of its investments, including any undrawn commitments. Northern Trust’s funding requirements are limited to its invested capital and undrawn commitments for future equity contributions. Northern Trust has no exposure to loss from liquidity arrangements and no obligation to purchase assets of these entities.

Northern Trust’s investments in these unconsolidated entities and related unfunded commitments are reported in Other Assets and Other Liabilities, respectively, on the consolidated balance sheets.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 163

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

TABLE 125: SUMMARY OF UNCONSOLIDATED TAX CREDIT STRUCTURES

(In Millions)DECEMBER 31, 2023DECEMBER 31, 2022
Investment Carrying Amount
Affordable Housing$622.8$635.9
Other Community Development266.3268.4
Total Investment Carrying Amount(1)$889.1$904.3
Unfunded Commitments
Affordable Housing$178.8$218.9
Other Community Development——
Total Unfunded Commitments(2)$178.8$218.9

(1) As of December 31, 2023 and December 31, 2022, $857.0 million and $867.2 million are VIEs, respectively.

(2) As of December 31, 2023 and December 31, 2022, $172.0 million and $210.1 million relate to undrawn commitments on VIEs, respectively.

Tax credits and other tax benefits attributable to unconsolidated tax credit structures totaled $113.9 million and $99.1 million, respectively, as of December 31, 2023 and 2022 and are reported in Provision for Income Taxes on the consolidated statements of income.

Investment funds. Northern Trust acts as asset manager for various funds in which clients of Northern Trust are investors. As an asset manager of funds, Northern Trust earns a competitively priced fee that is based on assets managed and varies with each fund’s investment objective. Based on its analysis, Northern Trust has determined that it is not the primary beneficiary of these VIEs under GAAP.

Some of the funds for which Northern Trust acts as asset manager comply or operate in accordance with requirements that are similar to those in Rule 2a-7 of the Investment Company Act of 1940 for registered money market funds and therefore the funds are exempt from the consolidation requirements in ASC 810-10. Northern Trust voluntarily waived $8.8 million and $64.2 million of money market fund fees for the years ended December 31, 2023, and December 31, 2022, respectively, related to certain competitive factors. Northern Trust does not have any contractual obligations to provide financial support to the funds. Any potential future support of the funds will be at the discretion of Northern Trust after an evaluation of the specific facts and circumstances.

Periodically, Northern Trust makes seed capital investments to certain funds. As of December 31, 2023, Northern Trust had no seed capital investments and no unfunded commitments related to seed capital investments. As of December 31, 2022, Northern Trust had $19.9 million of such investments valued using net asset value per share and included in Other Assets and had no unfunded commitments related to seed capital investments.

Note 29 – Pledged Assets, Accepted Collateral and Restricted Assets

Pledged Assets. For our liquidity management strategy, we may pledge loans and/or securities to various financial market utilities to allow for client payment, clearing and settlement processing as part of our custody services. We may pledge loans or securities to Central Banks, Federal Home Loan Bank (FHLB) of Chicago and third parties for various purposes, for example: securing public and trust deposits, repurchase agreements, borrowings and derivative contracts.

For the year ended December 31, 2023 and 2022, respectively, $1.1 billion and $453.9 million of collateral we pledge, related to loans and/or securities, is eligible to be repledged or sold by the secured party. The following table presents the carrying value of Northern Trust’s pledged assets by type.

TABLE 126: TYPE OF PLEDGED ASSETS

FOR THE YEAR ENDED DECEMBER 31,
(In Billions)20232022
Debt Securities(1)$33.0$31.4
Loans(2)10.311.8
Total Pledged Assets$43.3$43.2

(1) Debt securities are comprised of held to maturity and available for sale securities.

(2) Loans pledged at the FHLB of Chicago and the Federal Reserve Bank of Chicago.

164 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Accepted Collateral. Northern Trust accepts financial assets as collateral that it may, in some instances, be permitted to repledge or sell. The collateral is generally obtained under certain reverse repurchase agreements and derivative contracts. The following table presents the fair value of securities accepted as collateral.

TABLE 127: ACCEPTED COLLATERAL

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)20232022
Collateral that may be repledged or sold
Reverse repurchase agreements(1)$62,767.8$12,119.4
Derivative contracts12.25.0
Collateral that may not be repledged or sold
Reverse repurchase agreements—450.0
Total Collateral Accepted$62,780.0$12,574.4

(1) The fair value of securities collateral that was repledged or sold totaled $62.0 billion and $11.5 billion at December 31, 2023 and 2022, respectively. This primarily includes collateral accepted as related to the sponsored member program. Refer to Note 24, “Commitments and Contingent Liabilities” and Note 27, “Offsetting of Assets and Liabilities” for further information.

Restricted Assets. Certain cash may be restricted in terms of usage or withdrawal. As a result of the continuing military conflict involving Ukraine and the Russian Federation and related sanctions and legal restrictions in place, cash balances denominated in Russian rubles received for the benefit of certain clients in our Asset Servicing business are subject to distribution restrictions. As of December 31, 2023 and 2022, these balances totaled $722.2 million and $330.4 million, respectively, and are reported in Cash and Due from Banks on the consolidated balance sheet.

At December 31, 2023 and 2022, Northern Trust held cash of $575.2 million and $574.2 million, respectively, to meet non-U.S. reserve requirements. As a result of the economic environment arising from the COVID-19 pandemic, the Federal Reserve reduced the U.S. reserve requirement to zero percent on March 26, 2020. There were no average deposits required to meet Federal Reserve Bank reserve requirements at December 31, 2023 and 2022.

Note 30 – Restrictions on Subsidiary Dividends and Loans or Advances

Various federal and state statutory provisions limit the amount of dividends the Bank can pay to the Corporation without regulatory approval. Approval of the Federal Reserve Board is required for payment of any dividend by a state-chartered bank that is a member of the Federal Reserve System if the total of all dividends declared by the bank in any calendar year would exceed the total of its retained net income (as defined by regulatory agencies) for that year combined with its retained net income for the preceding two years. In addition, a state member bank may not pay a dividend in an amount greater than its “undivided profits,” as defined, without regulatory and stockholder approval.

Under Illinois law, an Illinois state bank, prior to paying a dividend, must carry over to surplus at least one-tenth of its net profits since the date of the declaration of the last preceding dividend, until the bank’s surplus is equal to its capital. In addition, an Illinois state bank may not pay any dividend in an amount greater than its net profits then on hand, after deduction of losses and bad debts (defined as debts due to a state bank on which interest is past due and unpaid for a period of six months or more, unless the same are well secured and in the process of collection).

The Bank is also prohibited under federal law from paying any dividends if the Bank is undercapitalized or if the payment of the dividends would cause the Bank to become undercapitalized. In addition, the federal regulatory agencies are authorized to prohibit a bank or bank holding company from engaging in an unsafe or unsound banking practice. The payment of dividends could, depending on the financial condition of the Bank, be deemed to constitute an unsafe or unsound practice. The Dodd-Frank Act and Basel III impose additional restrictions on the ability of banking institutions to pay dividends (e.g., the Corporation may pay dividends only in accordance with the capital plan rules and capital adequacy standards of the Federal Reserve). Our Bank subsidiary could have declared additional dividends of approximately $1.5 billion at December 31, 2023, without obtaining prior regulatory approval.

Under federal law, financial transactions by the Bank, the Corporation’s insured banking subsidiary, with the Corporation and its affiliates that are in the form of loans or extensions of credit, investments, guarantees, derivative transactions, repurchase agreements, securities lending transactions or purchases of assets, are restricted. These transactions must be on terms and conditions that are, or in good faith would be, offered to non-affiliated companies (i.e. on terms not less favorable to the Bank than market terms). Further, extensions of credit must be secured fully with qualifying collateral and are limited to 10% of the Bank’s capital and surplus for transactions with a single affiliate and to 20% of the Bank’s capital and surplus with all affiliates. Other state and federal laws may limit the transfer of funds by the Corporation’s banking subsidiaries to the Corporation and certain of its affiliates.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 165

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 31 – Reporting Segments and Related Information

Segment Information. Northern Trust is organized around its two client-focused reporting segments: Asset Servicing and Wealth Management. Asset management and related services are provided to Asset Servicing and Wealth Management clients primarily by the Asset Management business. The revenue and expenses of Asset Management and certain other support functions are allocated fully to Asset Servicing and Wealth Management.

Reporting segment financial information, presented on an internal management-reporting basis, is determined by accounting systems used to allocate revenue and expense to each segment, and incorporates processes for allocating assets, liabilities, equity and the applicable interest income and expense utilizing a funds transfer pricing (FTP) methodology. Under the methodology, assets and liabilities receive a funding charge or credit that considers interest rate risk, liquidity risk, and other product characteristics on an instrument level. Additionally, segment information is presented on a fully taxable equivalent (FTE) basis as management believes an FTE presentation provides a clearer indication of net interest income. The adjustment to an FTE basis has no impact on Net Income.

Equity is allocated to the reporting segments based on a variety of factors including, but not limited to, risk, regulatory considerations, and internal metrics. Allocations of capital and certain corporate expense may not be representative of levels that would be required if the segments were independent entities. The accounting policies used for management reporting are consistent with those described in Note 1, “Summary of Significant Accounting Policies.” Transfers of income and expense items are recorded at cost; there is no consolidated profit or loss on sales or transfers between reporting segments. Northern Trust’s presentations are not necessarily consistent with similar information for other financial institutions.

Revenues, expenses and average assets are allocated to Asset Servicing and Wealth Management, with the exception of non-recurring activities such as certain corporate transactions and costs incurred associated with acquisitions, divestitures, litigation, restructuring, and tax adjustments not directly attributable to a specific reporting segment, which are reported within the Other segment.

Reporting segment results are subject to reclassification when organizational changes are made. The results are also subject to refinements in revenue and expense allocation methodologies, which are typically reflected on a prospective basis.

Asset Servicing. Asset Servicing is a leading global provider of asset servicing and related services to corporate and public retirement funds, foundations, endowments, fund managers, insurance companies, sovereign wealth funds, and other institutional investors around the globe. Asset servicing and related services encompass a full range of capabilities including but not limited to: custody; fund administration; investment operations outsourcing; investment management; investment risk and analytical services; employee benefit services; securities lending; foreign exchange; treasury management; brokerage services; transition management services; banking; and cash management. Client relationships are managed through the Bank and the Bank’s and the Corporation’s other subsidiaries, including support from locations in North America, Europe, the Middle East, and the Asia-Pacific region.

Wealth Management. Wealth Management focuses on high-net-worth individuals and families, business owners, executives, professionals, retirees, and established privately-held businesses in its target markets. In supporting these targeted segments, Wealth Management provides trust, investment management, custody, and philanthropic services; financial consulting; guardianship and estate administration; family business consulting; family financial education; brokerage services; and private and business banking. Wealth Management also includes Global Family Office, which provides customized services, including but not limited to: investment consulting; global custody; fiduciary; and private banking; family office consulting, and technology solutions, to meet the complex financial and reporting needs of ultra-high-net-worth individuals and family offices across the globe. Wealth Management services are delivered by multidisciplinary teams through a network of offices in 19 U.S. states and Washington, D.C., as well as offices in London, Guernsey, and Abu Dhabi.

Other**.** Income and expenses associated with non-recurring activities such as certain costs associated with acquisitions, divestitures, litigation, restructuring, and tax adjustments are included within Other.

The following tables reflect the earnings contribution and average assets of Northern Trust’s reporting segments for the years ended December 31, 2023, 2022, and 2021. Segment results are stated on an FTE basis which has no impact on net income. Financial measures stated on an FTE basis includes FTE adjustments of $57.5 million, $45.6 million, and $35.6 million for 2023, 2022, and 2021, respectively.

166 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

TABLE 128: ASSET SERVICING RESULTS OF OPERATIONS

FOR THE YEAR ENDED DECEMBER 31,
($ In Millions)202320222021
Noninterest Income
Trust, Investment and Other Servicing Fees$2,461.9$2,496.3$2,487.3
Foreign Exchange Trading Income213.0281.0279.0
Other Noninterest Income263.4250.7261.2
Total Noninterest Income2,938.33,028.03,027.5
Net Interest Income(1)1,197.31,072.7637.2
Revenue(1)4,135.64,100.73,664.7
Provision for (Release of) Credit Losses0.52.4(33.8)
Noninterest Expense3,273.23,092.72,863.0
Income before Income Taxes(1)861.91,005.6835.5
Provision for Income Taxes(1)187.1243.2194.1
Net Income$674.8$762.4$641.4
Percentage of Consolidated Net Income61%57%41%
Average Assets$101,472.6$115,646.4$120,883.2

(1) Financial measures stated on an FTE basis.

TABLE 129: WEALTH MANAGEMENT RESULTS OF OPERATIONS

FOR THE YEAR ENDED DECEMBER 31,
($ In Millions)202320222021
Noninterest Income
Trust, Investment and Other Servicing Fees$1,899.9$1,936.3$1,873.8
Foreign Exchange Trading Income (Loss)(9.1)7.613.6
Other Noninterest Income150.8137.7188.2
Total Noninterest Income2,041.62,081.62,075.6
Net Interest Income(1)842.2860.1781.1
Revenue(1)2,883.82,941.72,856.7
Provision for (Release of) Credit Losses24.09.6(47.7)
Noninterest Expense1,882.31,815.51,651.1
Income before Income Taxes(1)977.51,116.61,253.3
Provision for Income Taxes(1)245.9310.0317.0
Net Income$731.6$806.6$936.3
Percentage of Consolidated Net Income66%60%61%
Average Assets$41,176.6$36,905.5$35,480.0

(1) Financial measures stated on an FTE basis.

TABLE 130: OTHER RESULTS OF OPERATIONS

FOR THE YEAR ENDED DECEMBER 31,
($ In Millions)202320222021
Noninterest Income (Loss)$(188.4)$(235.6)$(21.3)
Net Interest Income(1)———
Revenue(1)(188.4)(235.6)(21.3)
Noninterest Expense128.774.721.8
Income (Loss) before Income Taxes(1)(317.1)(310.3)(43.1)
Provision (Benefit) for Income Taxes(1)(18.0)(77.3)(10.7)
Net Income (Loss)$(299.1)$(233.0)$(32.4)
Percentage of Consolidated Net Income (Loss)(27)%(17)%(2)%
Average Assets$—$—$—

(1) Financial measures stated on an FTE basis.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 167

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

TABLE 131: CONSOLIDATED FINANCIAL INFORMATION

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
Noninterest Income
Trust, Investment and Other Servicing Fees$4,361.8$4,432.6$4,361.1
Foreign Exchange Trading Income203.9288.6292.6
Other Noninterest Income225.8152.8428.1
Total Noninterest Income4,791.54,874.05,081.8
Net Interest Income1,982.01,887.21,382.7
Revenue6,773.56,761.26,464.5
Provision for (Release of) Credit Losses24.512.0(81.5)
Noninterest Expense5,284.24,982.94,535.9
Income before Income Taxes1,464.81,766.32,010.1
Provision for Income Taxes357.5430.3464.8
Net Income$1,107.3$1,336.0$1,545.3
Average Assets$142,649.2$152,551.9$156,363.2

Geographic Area Information. Northern Trust’s non-U.S. activities are primarily related to its asset servicing, asset management, foreign exchange, cash management, and commercial banking businesses. The operations of Northern Trust are managed on a reporting segment basis and include components of both U.S and non-U.S. source income and assets. Non-U.S. source income and assets are not separately identified in Northern Trust’s internal management reporting system. However, Northern Trust is required to disclose non-U.S. activities based on the domicile of the customer. Due to the complex and integrated nature of Northern Trust’s activities, it is difficult to segregate with precision revenues, expenses and assets between U.S. and non-U.S.-domiciled customers. Therefore, certain subjective estimates and assumptions have been made to allocate revenues, expenses and assets between U.S. and non-U.S. operations.

For purposes of this disclosure, all foreign exchange trading income has been allocated to non-U.S. operations. Interest expense is allocated to non-U.S. operations based on specifically matched or pooled funding. Allocations of indirect noninterest expenses, when made, are based on various methods such as time, space, and number of employees.

The following table summarizes Northern Trust’s performance based on the allocation process described above without regard to guarantors or the location of collateral.

TABLE 132: DISTRIBUTION OF TOTAL ASSETS AND OPERATING PERFORMANCE

($ In Millions)TOTAL ASSETS% OF TOTALTOTAL REVENUE**(1)**% OF TOTALINCOME BEFORE INCOME TAXES% OF TOTALNET INCOME% OF TOTAL
2023
Non-U.S.$39,661.526%$2,156.132%$473.732%$354.032%
U.S.111,121.674%4,617.468%991.168%753.368%
Total$150,783.1100%$6,773.5100%$1,464.8100%$1,107.3100%
2022
Non-U.S.$35,991.323%$2,273.334%$560.932%$420.231%
U.S.119,045.477%4,487.966%1,205.468%915.869%
Total$155,036.7100%$6,761.2100%$1,766.3100%$1,336.0100%
2021
Non-U.S.$38,555.321%$2,017.531%$569.428%$426.728%
U.S.145,334.579%4,447.069%1,440.772%1,118.672%
Total$183,889.8100%$6,464.5100%$2,010.1100%$1,545.3100%

(1) Total revenue is comprised of net interest income and noninterest income.

Note 32 – Regulatory Capital Requirements

The Corporation and the Bank are subject to various regulatory capital requirements administered by the federal bank regulatory authorities. Under these requirements, banks must maintain specific risk-based capital and leverage ratios in order to be classified as “well-capitalized.” The regulatory capital requirements impose certain restrictions upon banks that meet minimum capital requirements but are not “well-capitalized” and obligate the federal bank regulatory authorities to take “prompt corrective action” with respect to banks that do not maintain such minimum ratios. Such prompt corrective action could have a direct material effect on a bank’s financial statements.

168 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

As of December 31, 2023 and 2022, the Bank had capital ratios above the levels required for classification as a “well-capitalized” institution and had not received any regulatory notification of a lower classification. The results of the 2023 DFAST, published by the Federal Reserve Board on June 28, 2023, resulted in Northern Trust’s stress capital buffer and effective Common Equity Tier 1 capital ratio minimum requirement remaining constant at 2.5% and 7.0%, respectively, for the annual capital plan cycle, which began on October 1, 2023 and continues through September 30, 2024.

Additionally, Northern Trust’s subsidiary banks located outside the U.S. are subject to regulatory capital requirements in the jurisdictions in which they operate. As of December 31, 2023 and 2022, Northern Trust’s non-U.S. banking subsidiaries had capital ratios above their specified minimum requirements. There were no conditions or events since December 31, 2023, that management believes have adversely affected the capital categorization of any Northern Trust subsidiary bank. The following table provides capital ratios for the Corporation and the Bank determined by Basel III phased in requirements.

TABLE 133: RISK-BASED AND LEVERAGE CAPITAL AMOUNTS AND RATIOS

DECEMBER 31, 2023DECEMBER 31, 2022
($ In Millions)STANDARDIZED APPROACHADVANCED APPROACHSTANDARDIZED APPROACHADVANCED APPROACH
BALANCERATIOBALANCERATIOBALANCERATIOBALANCERATIO
Common Equity Tier 1 Capital
Northern Trust Corporation$10,179.411.4%$10,179.413.4%$9,539.710.8%$9,539.711.5%
The Northern Trust Company10,806.212.210,806.214.610,111.211.610,111.212.4
Minimum to qualify as well-capitalized:
Northern Trust CorporationN/AN/AN/AN/AN/AN/AN/AN/A
The Northern Trust Company5,768.46.54,808.66.55,684.46.55,286.26.5
Tier 1 Capital
Northern Trust Corporation11,023.912.311,023.914.510,397.411.810,397.412.5
The Northern Trust Company10,806.212.210,806.214.610,111.211.610,111.212.4
Minimum to qualify as well-capitalized:
Northern Trust Corporation5,371.66.04,558.86.05,286.56.04,990.96.0
The Northern Trust Company7,099.58.05,918.38.06,996.28.06,506.18.0
Total Capital
Northern Trust Corporation12,733.914.212,514.716.512,245.513.912,045.914.5
The Northern Trust Company12,279.313.812,060.216.311,766.813.511,567.214.2
Minimum to qualify as well-capitalized:
Northern Trust Corporation8,952.710.07,598.010.08,810.810.08,318.110.0
The Northern Trust Company8,874.410.07,397.910.08,745.310.08,132.610.0
Tier 1 Leverage
Northern Trust Corporation11,023.98.111,023.98.110,397.47.110,397.47.1
The Northern Trust Company10,806.28.010,806.28.010,111.26.910,111.26.9
Minimum to qualify as well-capitalized:
Northern Trust CorporationN/AN/AN/AN/AN/AN/AN/AN/A
The Northern Trust Company6,764.05.06,764.05.07,323.85.07,323.85.0
Supplementary Leverage**(1)**
Northern Trust CorporationN/AN/A11,023.98.6N/AN/A10,397.47.9
The Northern Trust CompanyN/AN/A10,806.28.5N/AN/A10,111.27.7
Minimum to qualify as well-capitalized:
Northern Trust CorporationN/AN/AN/AN/AN/AN/AN/AN/A
The Northern Trust CompanyN/AN/A3,825.63.0N/AN/A3,931.53.0

(1) In November 2019, the Federal Reserve Board and other U.S. federal banking agencies adopted a final rule that established a deduction for central bank deposits from the total leverage exposures of custodial banking organizations, including the Corporation and the Bank, equal to the lesser of (i) the total amount of funds the custodial banking organization and its consolidated subsidiaries have on deposit at qualifying central banks and (ii) the total amount of client funds on deposit at the custodial banking organization that are linked to fiduciary or custodial and safekeeping accounts. The rule became effective on April 1, 2020.

The supplementary leverage ratios at December 31, 2023 and December 31, 2022 for the Corporation and the Bank reflect the impact of the final rule.

Under the final Basel III rules, the Corporation and the Bank are required to calculate and publicly disclose risk-based capital ratios using two methodologies: an advanced approach and a standardized approach. Under the advanced approach, credit RWA are based on internal credit models and parameters. Additionally, the advanced approach incorporates operational risk RWA. Under the standardized approach, RWA are based on supervisory prescribed risk weights that are primarily dependent on counterparty type and asset class.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 169

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Pursuant to the Federal Reserve Board's implementation in the final Basel III rules of a provision of the Dodd-Frank Act, the capital adequacy of the Corporation and the Bank is assessed based on the lower of the advanced approach or standardized approach capital ratios.

Note 33 – Northern Trust Corporation (Corporation only)

Condensed financial information is presented in the following tables. Investments in wholly-owned subsidiaries are carried on the equity method of accounting.

TABLE 134: CONDENSED BALANCE SHEETS

DECEMBER 31,
(In Millions)20232022
ASSETS
Cash on Deposit with Subsidiary Bank$795.5$601.4
Advances to Wholly-Owned Subsidiaries – Banks3,760.04,010.0
Investments in Wholly-Owned Subsidiaries – Banks11,591.410,897.1
– Nonbank209.7194.7
Other Assets1,233.11,226.3
Total Assets$17,589.7$16,929.5
LIABILITIES
Senior Notes$2,773.2$2,724.2
Long-Term Debt2,065.02,066.2
Other Liabilities853.6879.6
Total Liabilities5,691.85,670.0
STOCKHOLDERS’ EQUITY
Preferred Stock884.9884.9
Common Stock408.6408.6
Additional Paid-in Capital1,009.6983.5
Retained Earnings14,233.813,798.5
Accumulated Other Comprehensive Income (Loss)(1,137.9)(1,569.2)
Treasury Stock(3,501.1)(3,246.8)
Total Stockholders’ Equity11,897.911,259.5
Total Liabilities and Stockholders’ Equity$17,589.7$16,929.5

TABLE 135: CONDENSED STATEMENTS OF INCOME

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
OPERATING INCOME
Dividends – Bank Subsidiaries$850.0$—$751.1
– Nonbank Subsidiaries——8.3
Intercompany Interest and Other Charges260.2112.820.1
Interest and Other Income12.2(5.7)32.3
Total Operating Income1,122.4107.1811.8
OPERATING EXPENSES
Interest Expense279.5132.371.3
Other Operating Expenses32.311.936.7
Total Operating Expenses311.8144.2108.0
Income (Loss) before Income Taxes and Equity in Undistributed Net Income of Subsidiaries810.6(37.1)703.8
Benefit for Income Taxes12.416.925.7
Income (Loss) before Equity in Undistributed Net Income of Subsidiaries823.0(20.2)729.5
Equity in Undistributed Net Income of Subsidiaries – Banks269.41,338.5803.3
– Nonbank14.917.712.5
Net Income$1,107.3$1,336.0$1,545.3
Preferred Stock Dividends41.841.841.8
Net Income Applicable to Common Stock$1,065.5$1,294.2$1,503.5
170 2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

TABLE 136: CONDENSED STATEMENTS OF CASH FLOWS

FOR THE YEAR ENDED DECEMBER 31,
(In Millions)202320222021
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income$1,107.3$1,336.0$1,545.3
Adjustments to Reconcile Net Income to Net Cash Provided by (Used in) Operating Activities
Equity in Undistributed Net Income of Subsidiaries(284.3)(1,356.2)(815.8)
Change in Prepaid Expenses1.7(3.8)0.1
Change in Accrued Income Taxes(10.2)36.62.2
Other Operating Activities, net138.1(608.2)236.6
Net Cash Provided by (Used in) Operating Activities952.6(595.6)968.4
CASH FLOWS FROM INVESTING ACTIVITIES
Investments in and Advances to Subsidiaries, net250.0(1,200.1)(140.0)
Other Investing Activities, net—(0.1)5.1
Net Cash Provided by (Used in) Investing Activities250.0(1,200.2)(134.9)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from Senior Notes—1,988.8—
Repayments of Senior Notes—(500.0)(500.0)
Repayment of Floating Rate Capital Debt——(278.8)
Treasury Stock Purchased(347.5)(35.4)(267.6)
Net Proceeds from Stock Options2.33.953.8
Cash Dividends Paid on Common Stock(621.5)(750.2)(583.3)
Cash Dividends Paid on Preferred Stock(41.8)(46.5)(41.8)
Other Financing Activities, net—4.9(0.1)
Net Cash (Used in) Provided by Financing Activities(1,008.5)665.5(1,617.8)
Net Change in Cash on Deposit with Subsidiary Bank194.1(1,130.3)(784.3)
Cash on Deposit with Subsidiary Bank at Beginning of Year601.41,731.72,516.0
Cash on Deposit with Subsidiary Bank at End of Year$795.5$601.4$1,731.7

Note 34 – Subsequent Events

In January 2024, the Corporation sold certain available-for-sale debt securities with an amortized cost of $2.2 billion that were in an unrealized loss position in conjunction with a repositioning of the portfolio. As a result, the Corporation recognized a $189.4 million loss recorded in Investment Security Gains (Losses), net on the consolidated statements of income in the first quarter of 2024. The $189.4 million realized loss includes $18.4 million of cumulative hedge accounting basis adjustments related to discontinued fair value hedging relationships of certain available-for-sale debt securities sold.

2023 ANNUAL REPORT | NORTHERN TRUST CORPORATION 171

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