Item 16. FORM 10-K SUMMARY

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Item 16. FORM 10-K SUMMARY

Not applicable.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Vertex Pharmaceuticals Incorporated
February 13, 2025By:/s/ Reshma Kewalramani
Reshma Kewalramani Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

NameTitleDate
/s/ Reshma Kewalramani
Reshma KewalramaniPresident, Chief Executive Officer and Director (Principal Executive Officer)February 13, 2025
/s/ Charles F. Wagner, Jr.
Charles F. Wagner, Jr.Executive Vice President and Chief Financial Officer (Principal Financial Officer)February 13, 2025
/s/ Kristen C. Ambrose
Kristen C. AmbroseSenior Vice President and Chief Accounting Officer (Principal Accounting Officer)February 13, 2025
/s/Jeffrey M. Leiden
Jeffrey M. LeidenExecutive ChairmanFebruary 13, 2025
/s/ Sangeeta N. Bhatia
Sangeeta N. BhatiaDirectorFebruary 13, 2025
/s/ Lloyd Carney
Lloyd CarneyDirectorFebruary 13, 2025
/s/ Alan Garber
Alan GarberDirectorFebruary 13, 2025
/s/ Michel Lagarde
Michel LagardeDirectorFebruary 13, 2025
/s/ Diana McKenzie
Diana McKenzieDirectorFebruary 13, 2025
/s/ Nancy A. Thornberry
Nancy A. ThornberryDirectorFebruary 13, 2025
/s/ Bruce I. Sachs
Bruce I. SachsDirectorFebruary 13, 2025
/s/ Jennifer Schneider
Jennifer SchneiderDirectorFebruary 13, 2025
/s/ Suketu Upadhyay
Suketu UpadhyayDirectorFebruary 13, 2025

Report of Independent Registered Public Accounting Firm

To the Shareholders and the Board of Directors of Vertex Pharmaceuticals Incorporated

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Vertex Pharmaceuticals Incorporated (the Company) as of December 31, 2024 and 2023, the related consolidated statements of income, comprehensive income, shareholders’ equity and cash flows for each of the three years in the period ended December 31, 2024, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2024, 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 Company’s internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 13, 2025, expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s 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 Company 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 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 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 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 financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matters 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 matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

F-1

Medicaid Drug Rebate Program in the U.S.
Description of the MatterAs discussed in Note A to the Company’s consolidated financial statements, the Company recognizes revenue from product sales based on amounts due from customers net of allowances for variable consideration, which include, among others, rebates mandated by law under Medicaid and other government pricing programs. The most significant estimates relate to government and private payor rebates, chargebacks, discounts and fees, collectively rebates. The Company includes an estimate of variable consideration in its transaction price at the time of sale, when control of the product transfers to the customer. The Company estimates its Medicaid and other government pricing accruals based on monthly sales, historical experience of claims submitted by the various states and jurisdictions, historical rebate rates and estimated lag time of the rebate invoices. Rebate accruals inclusive of estimated amounts due for claims not yet received or processed as part of the Company’s Medicaid program are recorded within accrued expenses on the Company’s consolidated balance sheet. Auditing the allowances for rebates owed pursuant to the Medicaid Drug Rebate Program in the U.S. was complex and judgmental due to the significant estimation required in determining certain assumptions including the levels of expected utilization of these rebates based on the amount of product sold to eligible patients, as well as the complexity of the government mandated rebate calculations. The allowances for rebates owed pursuant to the Medicaid Drug Rebate Program in the U.S. are sensitive to these significant assumptions and calculations.
How We Addressed the Matter in Our AuditWe obtained an understanding, evaluated the design and tested the operating effectiveness of controls over the Company’s revenue recognition process, including controls over management’s computation and review of the allowances for Medicaid rebates. We tested the Company’s controls to assess the completeness and accuracy of the current and historical data that supports the Medicaid estimate, significant assumptions related to the inputs utilized as well as management’s review of the application of the government pricing regulations. Our audit procedures to test the allowances for rebates owed pursuant to the Medicaid Drug Rebate Program in the U.S., included the following: we assessed the methodology used to determine the estimate and tested the significant assumptions as well as the underlying data used by the Company in its analysis. We also assessed the historical accuracy of the Company’s estimates of Medicaid rebates by comparing assumptions to historical trends and evaluating the change from prior periods. We further tested the completeness and accuracy of the underlying data used in the Company’s calculations through reconciliation to third-party invoices, claims data and actual cash payments. In addition, we involved our government pricing specialists to assist in evaluating management’s methodology and calculations used in the measurement of certain estimated rebates.

F-2

Evaluating the fair value of the in-process research and development assets acquired in the Alpine Immune Sciences, Inc. acquisition
Description of the MatterAs described in Note B to the consolidated financial statements, on May 20, 2024, the Company acquired Alpine Immune Sciences, Inc. (“Alpine”), a publicly traded biotechnology company focused on discovering and developing innovative, protein-based immunotherapies for approximately $5.0 billion in cash. The Company determined substantially all the fair value of the gross assets acquired were concentrated in Alpine’s lead molecule, povetacicept. Therefore, the Company accounted for the Alpine transaction as an asset acquisition under U.S. GAAP. The acquired in-process research and development asset was valued at $4.4 billion, which was expensed on the date of acquisition as it did not have alternative future use at the acquisition date. Auditing the fair value of the in-process research and development assets acquired in the Alpine transaction was judgmental due to the significant estimation uncertainty and subjectivity of the significant assumptions used by management in determining the present value of future discounted cash flows. The significant assumptions used in determining the fair value of the in-process research and development assets acquired included the amount and timing of future product revenues, the discount rate and probability of technical and regulatory success. The valuation of the in-process research and development assets is sensitive to these significant assumptions.
How We Addressed the Matter in Our AuditWe obtained an understanding, evaluated the design and tested the operating effectiveness of controls over management’s review of the valuation of the in-process research and development assets of Alpine. For example, we tested controls over management’s review of the significant assumptions and the completeness and accuracy of the data used in the valuation. To test the fair value of the povetacicept in-process research and development assets, we performed audit procedures that included, among others, evaluating the Company's methodologies used and testing the significant assumptions discussed above. For example, we compared the significant assumptions used by management to current published scientific studies, industry, market and economic trends, and to other relevant factors. In addition, to evaluate the probability of technical and regulatory success, we considered the phase of development of the in-process research and development assets and compared the Company’s assumptions to third-party data regarding clinical trial success rates. We also performed various sensitivity analyses of the significant assumptions to evaluate the change in the fair value of the in-process research and development assets resulting from changes in the assumptions. In addition, we involved our valuation specialists to assist in our evaluation of the methodologies and the discount rate used in the fair value estimates.

/s/ Ernst & Young LLP

We have served as the Company’s auditor since 2005.

Boston, Massachusetts

February 13, 2025

F-3

VERTEX PHARMACEUTICALS INCORPORATED

Consolidated Statements of Income

(in millions, except per share amounts)

Year Ended December 31,
202420232022
Product revenues, net$11,020.1$9,869.2$8,930.7
Costs and expenses:
Cost of sales1,530.51,262.21,080.3
Research and development expenses3,630.33,162.92,540.3
Acquired in-process research and development expenses4,628.4527.1115.5
Selling, general and administrative expenses1,464.31,136.6944.7
Change in fair value of contingent consideration(0.5)(51.6)(57.5)
Total costs and expenses11,253.06,037.24,623.3
(Loss) income from operations(232.9)3,832.04,307.4
Interest income598.1614.7144.6
Interest expense(30.6)(44.1)(54.8)
Other expense, net(86.1)(22.8)(164.8)
Income before provision for income taxes248.54,379.84,232.4
Provision for income taxes784.1760.2910.4
Net (loss) income$(535.6)$3,619.6$3,322.0
Net (loss) income per common share:
Basic$(2.08)$14.05$12.97
Diluted$(2.08)$13.89$12.82
Shares used in per share calculations:
Basic257.9257.7256.1
Diluted257.9260.5259.1

The accompanying notes are an integral part of these consolidated financial statements.

F-4

VERTEX PHARMACEUTICALS INCORPORATED

Consolidated Statements of Comprehensive Income

(in millions)

Year ended December 31,
202420232022
Net (loss) income$(535.6)$3,619.6$3,322.0
Other comprehensive income (loss):
Unrealized holding (losses) gains on marketable securities, net of tax of $0.6, $(2.7) and zero, respectively(2.5)9.70.4
Unrealized gains (losses) on foreign currency forward contracts, net of tax of $(38.2), $14.0 and $1.0, respectively136.0(50.9)(4.1)
Foreign currency translation adjustment8.626.1(11.4)
Total other comprehensive income (loss)142.1(15.1)(15.1)
Comprehensive (loss) income$(393.5)$3,604.5$3,306.9

The accompanying notes are an integral part of these consolidated financial statements.

F-5

VERTEX PHARMACEUTICALS INCORPORATED

Consolidated Balance Sheets

(in millions, exce****pt share data)

December 31,
20242023
Assets
Current assets:
Cash and cash equivalents$4,569.6$10,369.1
Marketable securities1,546.3849.2
Accounts receivable, net1,609.41,563.4
Inventories1,205.4738.8
Prepaid expenses and other current assets665.7623.7
Total current assets9,596.414,144.2
Property and equipment, net1,227.81,159.3
Goodwill1,088.01,088.0
Other intangible assets, net825.9839.9
Deferred tax assets2,331.11,812.1
Operating lease assets1,356.8293.6
Long-term marketable securities5,107.92,497.8
Other assets999.3895.3
Total assets$22,533.2$22,730.2
Liabilities and Shareholders’ Equity
Current liabilities:
Accounts payable$413.0$364.9
Accrued expenses2,788.62,655.3
Other current liabilities363.0527.2
Total current liabilities3,564.63,547.4
Long-term operating lease liabilities1,544.4348.6
Long-term finance lease liabilities112.8376.1
Other long-term liabilities901.8877.7
Total liabilities6,123.65,149.8
Commitments and contingencies——
Shareholders’ equity:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; none issued and outstanding——
Common stock, $0.01 par value; 500,000,000 shares authorized, 256,940,382 and 257,695,221 shares issued and outstanding, respectively2.62.6
Additional paid-in capital6,672.47,449.7
Accumulated other comprehensive income (loss)127.8(14.3)
Retained earnings9,606.810,142.4
Total shareholders’ equity16,409.617,580.4
Total liabilities and shareholders’ equity$22,533.2$22,730.2

The accompanying notes are an integral part of these consolidated financial statements.

F-6

VERTEX PHARMACEUTICALS INCORPORATED

Consolidated Statements of Shareholders’ Equity

(in millions)

Common StockAdditional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Retained EarningsTotal Shareholders’ Equity
SharesAmount
Balance at December 31, 2021254.5$2.5$6,880.8$15.9$3,200.8$10,100.0
Other comprehensive loss, net of tax———(15.1)—(15.1)
Net income————3,322.03,322.0
Common stock withheld for employee tax obligations(0.7)(0.0)(172.0)——(172.0)
Issuance of common stock under benefit plans3.20.1187.3——187.4
Stock-based compensation expense——490.4——490.4
Balance at December 31, 2022257.0$2.6$7,386.5$0.8$6,522.8$13,912.7
Other comprehensive loss, net of tax———(15.1)—(15.1)
Net income————3,619.63,619.6
Repurchases of common stock(1.3)(0.0)(427.6)——(427.6)
Common stock withheld for employee tax obligations(0.7)(0.0)(226.1)——(226.1)
Issuance of common stock under benefit plans2.70.0133.4——133.4
Stock-based compensation expense——583.5——583.5
Balance at December 31, 2023257.7$2.6$7,449.7$(14.3)$10,142.4$17,580.4
Other comprehensive income, net of tax———142.1—142.1
Net loss————(535.6)(535.6)
Repurchases of common stock(2.7)(0.0)(1,194.9)——(1,194.9)
Common stock withheld for employee tax obligations(0.9)(0.0)(405.0)——(405.0)
Issuance of common stock under benefit plans2.80.0113.5——113.5
Stock-based compensation expense——709.1——709.1
Balance at December 31, 2024256.9$2.6$6,672.4$127.8$9,606.8$16,409.6

The accompanying notes are an integral part of these consolidated financial statements.

F-7

VERTEX PHARMACEUTICALS INCORPORATED

Consolidated Statements of Cash Flows

(in millions)

Year Ended December 31,
202420232022
Cash flows from operating activities:
Net (loss) income$(535.6)$3,619.6$3,322.0
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Stock-based compensation expense698.5581.2491.3
Depreciation and amortization expenses207.2181.3148.3
Deferred income taxes(348.8)(536.5)(275.9)
Losses on equity securities57.70.6149.1
Decrease in fair value of contingent consideration(0.5)(51.6)(57.5)
Other non-cash items, net(56.3)8.411.8
Changes in operating assets and liabilities:
Accounts receivable, net(99.3)(84.1)(358.6)
Inventories(517.3)(322.9)(136.4)
Prepaid expenses and other assets(200.3)(545.7)(326.4)
Accounts payable49.548.7120.8
Accrued expenses212.9429.4542.5
Other liabilities39.7208.9498.9
Net cash (used in) provided by operating activities(492.6)3,537.34,129.9
Cash flows from investing activities:
Purchases of available-for-sale debt securities(7,438.2)(3,786.5)(692.7)
Sales and maturities of available-for-sale debt securities4,465.6839.1920.0
Purchases of property and equipment(297.7)(200.4)(204.7)
Sale of equity securities—95.1—
Net payments related to finite-lived intangible assets(187.7)(58.0)—
Acquisition of available-for-sale debt securities from Alpine Immune Sciences, Inc.(258.0)——
Payment to acquire ViaCyte, Inc., net of cash acquired——(295.9)
Other investing activities(54.0)(31.0)(47.8)
Net cash used in investing activities(3,770.0)(3,141.7)(321.1)
Cash flows from financing activities:
Issuances of common stock under benefit plans114.6134.6186.3
Repurchases of common stock(1,177.1)(427.6)—
Payments in connection with common stock withheld for employee tax obligations(405.0)(226.1)(172.0)
Payments on finance leases(33.6)(44.9)(85.5)
Other financing activities6.21.83.5
Net cash used in financing activities(1,494.9)(562.2)(67.7)
Effect of changes in exchange rates on cash(42.6)26.9(29.2)
Net (decrease) increase in cash, cash equivalents and restricted cash(5,800.1)(139.7)3,711.9
Cash, cash equivalents and restricted cash—beginning of period10,372.310,512.06,800.1
Cash, cash equivalents and restricted cash—end of period$4,572.2$10,372.3$10,512.0
Supplemental disclosure of cash flow information:
Cash paid for income taxes$1,082.1$1,677.3$1,057.8
Cash paid for interest$30.5$43.1$52.3
Net payments due to CRISPR Therapeutics AG related to finite-lived intangible assets$—$180.0$—

The accompanying notes are an integral part of these consolidated financial statements.

F-8

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements

**A.**Nature of Business and Accounting Policies

Business

Vertex Pharmaceuticals Incorporated (“Vertex,” “we,” “us” or “our”) is a global biotechnology company that invests in scientific innovation to create transformative medicines for people with serious diseases, with a focus on specialty markets. We have seven approved medicines: five that treat the underlying cause of cystic fibrosis (“CF”), a life-threatening genetic disease, one that treats severe sickle cell disease (“SCD”) and transfusion dependent beta thalassemia (“TDT”), life shortening inherited blood disorders, and one that treats moderate-to-severe acute pain. Our pipeline includes clinical-stage programs in CF, SCD, beta thalassemia, acute and peripheral neuropathic pain, APOL1-mediated kidney disease, IgA nephropathy and other autoimmune renal diseases and cytopenias, type 1 diabetes (“T1D”), myotonic dystrophy type 1 (“DM1”), and autosomal dominant polycystic kidney disease.

Our marketed CF medicines are ALYFTREK (vanzacaftor/tezacaftor/deutivacaftor), which was approved by the U.S. Food and Drug Administration (the “FDA”) in December 2024, TRIKAFTA/KAFTRIO (elexacaftor/tezacaftor/ivacaftor and ivacaftor), SYMDEKO/SYMKEVI (tezacaftor/ivacaftor and ivacaftor), ORKAMBI (lumacaftor/ivacaftor) and KALYDECO (ivacaftor).

We have received approval to market CASGEVY (exagamglogene autotemcel), a gene-therapy, for the treatment of SCD or TDT in the United States (“U.S.”), the European Union (“E.U.”), the United Kingdom (“U.K.”), the Kingdom of Saudi Arabia, the Kingdom of Bahrain, the United Arab Emirates, Canada and Switzerland. CASGEVY was initially approved by the FDA in December 2023.

In January 2025, the FDA approved JOURNAVX (suzetrigine), our selective non-opioid NaV1.8 pain signal inhibitor, for the treatment of moderate-to-severe acute pain.

Basis of Presentation

The accompanying consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the U.S. (“U.S. GAAP”), reflect the operations of Vertex and our wholly owned subsidiaries. All material intercompany balances and transactions have been eliminated. We operate in one segment, pharmaceuticals. Please refer to Note Q, “Segment Information,” for enterprise-wide disclosures regarding our revenues, major customers, significant segment expenses, and long-lived assets by geographic area.

Use of Estimates

The preparation of consolidated financial statements in accordance with U.S. GAAP requires us to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of our consolidated financial statements, and the amounts of revenues and expenses during the reported periods. We base our estimates on historical experience and various other assumptions, including in certain circumstances future projections that we believe to be reasonable under the circumstances. Actual results could differ from those estimates. Changes in estimates are reflected in reported results in the period in which they become known.

Revenue Recognition

We recognize revenue when a customer obtains control of promised goods or services. We record the amount of revenue that reflects the consideration that we expect to receive in exchange for those goods or services. We apply the following five-step model to determine this amount: (i) identification of the promised goods or services in the contract; (ii) determination of whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations; and (v) recognition of revenue when (or as) we satisfy each performance obligation.

We only apply the five-step model to contracts when it is probable that we will collect the consideration to which we are

F-9

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

entitled in exchange for the goods or services that we transfer to the customer. Once a contract is determined to be within the scope of Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers at contract inception, we review the contract to determine which performance obligations we must deliver and which of these performance obligations are distinct. We recognize as revenue the amount of the transaction price that is allocated to each performance obligation when that performance obligation is satisfied or as it is satisfied. Generally, our performance obligations are transferred to customers at a point in time, typically upon delivery.

Product Revenues, Net

We sell our products primarily to a limited number of specialty pharmacy and specialty distributors globally, as well as to retail pharmacies, hospitals and clinics internationally. Many of the international hospital and clinics are government-owned or supported. In the U.S., we also sell certain products to major wholesalers. Our customers in the U.S. subsequently resell our products to patients, health care providers, or authorized treatment centers (“ATCs”). In certain markets, we may sell CASGEVY directly to ATCs. Revenue recognition typically occurs upon delivery of our small molecule products, including our CF medicines, and upon infusion of our gene-therapy products, including CASGEVY.

Revenues from product sales are recorded at the net sales price, or “transaction price,” which includes estimates of variable consideration that result from (a) invoice discounts for prompt payment and distribution fees, (b) government and private payor rebates, chargebacks, discounts and fees, (c) product returns, and (d) other incentives for certain indirect customers, including costs of co-pay assistance programs for patients. Reserves are established for the estimates of variable consideration based on the amounts earned or to be claimed on the related sales. The reserves are classified as reductions to “Accounts receivable, net” if payable to a customer or “Accrued expenses” if payable to a third-party. Where appropriate, we utilize the expected value method to determine the appropriate amount for estimates of variable consideration based on factors such as our historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. The amount of variable consideration that is included in the transaction price may be constrained and is included in our net product revenues only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period. Actual amounts of consideration ultimately received may differ from our estimates. If actual results vary from our estimates, we adjust these estimates, which would affect net product revenue and earnings in the period such variances become known.

Invoice Discounts and Distribution Fees: In the U.S., we may provide invoice discounts on product sales to our customers for prompt payment and pay distribution and administrative fees, such as fees for certain data that customers provide to us. These fees are based on a fixed percentage of sales. We estimate that, based on our experience, our customers will earn these discounts and fees, and deduct the full amount of these discounts and fees from our gross product revenues and accounts receivable at the time such revenues are recognized.

Rebates, Chargebacks, Discounts and Fees: We contract with government agencies and commercial payors (our “Third-party Payors”) so that products will be eligible for purchase by, or partial or full reimbursement from, such Third-party Payors. We estimate the rebates, chargebacks, discounts and fees we will provide to Third-party Payors and deduct these estimated amounts from our gross product revenues at the time the revenues are recognized. For each product, we estimate the aggregate rebates, chargebacks and discounts that we will provide to Third-party Payors based upon (i) our contracts with these Third-party Payors, (ii) the government-mandated discounts and fees applicable to government-funded programs, (iii) information obtained from our customers and other third-party data regarding the payor mix for such product and (iv) historical experience.

Product Returns: We typically permit returns if our product is damaged, defective, or otherwise cannot be used by our customer. However, our return policies vary by product and market. We record deductions from our gross product revenues for estimated sales returns in the period the related revenue is recognized and base our estimate for returns on historical experience and known or expected changes in the marketplace specific to each product.

Other Incentives: Other incentives that we offer include co-pay mitigation rebates that we provide in the U.S. to commercially insured patients who have coverage and who reside in states that permit co-pay mitigation programs. Based upon the terms of our co-pay mitigation programs, we estimate average co-pay mitigation amounts for each of our products to establish appropriate accruals.

F-10

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

We make significant estimates and judgments that materially affect our recognition of net product revenues. We adjust our estimated rebates, chargebacks and discounts based on new information, including information regarding actual rebates, chargebacks and discounts for our products, as it becomes available. Claims by third-party payors for rebates, chargebacks and discounts frequently are submitted to us significantly after the related sales, potentially resulting in adjustments in the period in which the new information becomes known. Our credits to product revenue related to prior period sales have not been significant and primarily related to rebates and discounts.

Our payment terms, which typically range from 30 to 150 days depending on the product and market, are consistent with prevailing market practice. We do not adjust our net product revenues for the effects of a significant financing component for transactions where we expect, at contract inception, the period between our customer obtaining control of our product and when we receive payment to be one year or less.

We exclude taxes collected from customers relating to product sales and remitted to governmental authorities from revenues.

Contract Liabilities

We had contract liabilities of $206.8 million and $170.3 million as of December 31, 2024 and 2023, respectively, primarily related to annual contracts with government-owned and supported customers in international markets that limit the amount of annual reimbursement we can receive for our CF products. Upon exceeding the annual reimbursement amount provided by the customer’s contract with us, our CF products are provided free of charge, which is a material right. These contracts include upfront payments and fees. If we estimate that we will exceed the annual reimbursement amount under a contract, we defer a portion of the consideration received for shipments made up to the annual reimbursement limit as a portion of “Other current liabilities.” Once the reimbursement limit has been reached, we recognize the deferred amount as revenue when we deliver the free products. Our CF product revenue contracts include performance obligations that are one year or less.

Our contract liabilities at the end of each fiscal year relate to contracts with CF annual reimbursement limits in international markets in which the annual period associated with the contract is not the same as our fiscal year. In these markets we recognize revenues related to performance obligations satisfied in previous years; however, these revenues do not relate to any performance obligations that were satisfied more than 12 months prior to the beginning of the current year. During the years ended December 31, 2024, 2023 and 2022, we recorded $170.3 million, $159.6 million and $171.7 million, respectively, of CF product revenues that were recorded as contract liabilities at the beginning of the year.

Concentration of Credit Risk

Financial instruments that potentially subject us to concentration of credit risk consist principally of cash equivalents and marketable securities. We place these investments with highly rated financial institutions, and, by policy, limit the amount of credit exposure to any one financial institution. We also maintain a foreign currency hedging program that includes foreign currency forward contracts with several counterparties. We have not experienced any credit losses related to these financial instruments and do not believe we are exposed to any significant credit risk related to these instruments.

We are also subject to credit risk from our accounts receivable related to our product sales and collaborators. We evaluate the creditworthiness of each of our customers and have determined that all our material customers are creditworthy. To date, we have not experienced significant losses with respect to the collection of our accounts receivable. We believe that our allowances, which are not significant to our consolidated financial statements, are adequate at December 31, 2024. Please refer to Note Q, “Segment Information,” for further information.

Cash and Cash Equivalents

We consider all highly liquid investments with original maturities of three months or less at the date of purchase to be cash equivalents.

F-11

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Marketable Securities

As of December 31, 2024, our marketable securities consisted of investments in available-for-sale debt securities and corporate equity securities with readily determinable fair values. We classify marketable securities with current maturities of less than one year as current assets on our consolidated balance sheets. The remainder of our marketable securities are classified as long-term assets within “Long-term marketable securities” on our consolidated balance sheets. The fair value of these securities is based on quoted prices for identical or similar assets.

We record unrealized gains (losses) on available-for-sale debt securities as a component of “Accumulated other comprehensive income (loss),” which is a separate component of shareholders’ equity on our consolidated balance sheets, until such gains and losses are realized. Realized gains and losses, if any, are determined using the specific identification method.

For available-for-sale debt securities in unrealized loss positions, we are required to assess whether to record an allowance for credit losses using an expected loss model. A credit loss is limited to the amount by which the amortized cost of an investment exceeds its fair value. A previously recognized credit loss may be decreased in subsequent periods if our estimate of fair value for the investment increases. To determine whether to record a credit loss, we consider issuer specific credit ratings and historical losses as well as current economic conditions and our expectations for future economic conditions.

We record changes in the fair value of our investments in corporate equity securities to “Other expense, net” in our consolidated statements of income. Realized gains and losses, which are also included in “Other expense, net,” are determined on an original weighted-average cost basis.

Accounts Receivable

We deduct invoice discounts for prompt payment and fees for distribution services from our accounts receivable based on our experience that our customers will earn these discounts and fees. Our estimates for our allowance for credit losses, which has not been significant to date, is determined based on existing contractual payment terms, historical payment patterns, current economic conditions and our expectation for future economic conditions.

Stock-based Compensation Expense

We expense the fair value of employee restricted stock units and other forms of stock-based employee compensation over the associated employee service period on a straight-line basis. Stock-based compensation expense is determined based on the fair value of the award at the grant date and is adjusted each period to reflect actual forfeitures and the outcomes of certain performance conditions.

For awards with performance conditions in which the award does not vest unless the performance condition is met, we recognize expense if, and to the extent that, we estimate that achievement of the performance condition is probable. If we conclude that vesting is probable, we recognize expense from the date we reach this conclusion through the estimated vesting date.

We provide to employees who have rendered a certain number of years of service to Vertex and meet certain age requirements, partial or full acceleration of vesting of these equity awards, subject to certain conditions including a notification period, upon a termination of employment other than for cause. Approximately 5% of our employees were eligible for partial or full acceleration of any of their equity awards as of December 31, 2024. We recognize stock-based compensation expense related to these awards over a service period reflecting qualified employees’ eligibility for partial or full acceleration of vesting.

Please refer to Note N, “Stock-based Compensation Expense,” for tables displaying our stock-based compensation expense by type of award and by line item within our consolidated statements of income.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Cost of Sales

Our cost of sales primarily includes royalty expenses, cost of product sales, intangible asset amortization expenses, and other items related to our manufacturing processes, adjusted by CRISPR Therapeutics AG’s (“CRISPR”) share of the net commercial profits or losses for CASGEVY. Please refer to Note B, “Collaboration, License and Other Arrangements,” for further information on our royalties related to our CF products and our agreements with CRISPR related to the treatment of net commercial profits or losses for CASGEVY.

Shipping and handling costs incurred for inventory purchases are capitalized and recorded upon sale in “Cost of sales” in our consolidated statements of income. Shipping and handling costs incurred for product shipments are recorded as incurred in “Cost of sales” in our consolidated statements of income.

Research and Development Expenses

Research and development expenses are comprised of costs we incur in performing research and development activities, including salary and benefits; stock-based compensation expense; outsourced services and other direct expenses, including clinical trial, pharmaceutical development and drug supply costs; intangible asset impairment charges; and infrastructure costs, including facilities costs and depreciation expense. We recognize research and development expenses as incurred. We capitalize nonrefundable advance payments we make for research and development activities and expense the payments as the related goods are delivered or the related services are performed.

Acquired In-process Research and Development Expenses

Our research and development activities include upfront, contingent milestone, and other payments pursuant to our business development transactions, including collaborations, licenses of third-party technologies, and asset acquisitions. In-process research and development that is acquired in a transaction that does not qualify as a business combination under U.S. GAAP and that does not have an alternative future use is recorded to “Acquired in-process research and development expenses” (“AIPR&D”) in our consolidated statements of income in the period in which it is acquired.

In transactions that do not qualify as a business combination, we present the cost to acquire AIPR&D within our "Cash flows from operating activities" in our consolidated statements of cash flows.

Inventories

We value our inventories at the lower-of-cost or net realizable value. We determine the cost of our inventories, which include amounts related to materials and manufacturing overhead, on a first-in, first-out basis. We perform an assessment of the recoverability of our capitalized inventory during each reporting period and write down any excess and obsolete inventories to their net realizable value in the period in which the impairment is first identified.

We capitalize inventories prior to regulatory approval when we consider the related product candidate to have a high likelihood of regulatory approval and expect to recover the related costs. In making this determination, we evaluate, among other factors, the status of regulatory submissions and communications with regulatory authorities, information regarding the product candidate’s safety and efficacy, and the outlook for commercial sales, including the existence of any competition.

Property and Equipment

Property and equipment are recorded at cost, net of accumulated depreciation. Depreciation expense is recorded using the straight-line method over the estimated useful life of the related asset generally as follows:

DescriptionEstimated Useful Life
Buildings and improvements15 to 40 years
Laboratory equipment, other equipment and furniture7 to 10 years
Leasehold improvements; assets under finance leasesThe shorter of the useful life of the assets or the estimated remaining term of the associated lease
Computers and software3 to 5 years

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Maintenance and repairs to an asset that do not improve or extend its life are expensed as incurred. When assets are retired or otherwise disposed of, the assets and related accumulated depreciation are eliminated from the accounts and any resulting gain or loss is reflected in our consolidated statements of income. We perform an assessment of the fair value of the assets if indicators of impairment are identified during a reporting period and record the assets at the lower of the net book value or the fair value of the assets.

We capitalize costs incurred to develop software for internal use during the application development stage, which are depreciated over the useful life of the related asset.

Cloud Computing Service Contracts

We classify costs incurred to implement cloud computing service contracts as “Other assets” on our consolidated balance sheets. Amortization is recorded over the noncancellable term of the cloud computing service contract, plus any optional renewal periods that are reasonably certain to be exercised.

Leases

We determine whether an arrangement contains a lease at inception. If a lease is identified in an arrangement, we recognize a right-of-use asset and liability on our consolidated balance sheet and determine whether the lease should be classified as a finance or operating lease. We do not recognize assets or liabilities for leases with lease terms of less than 12 months.

A lease qualifies as a finance lease if any of the following criteria are met at the inception of the lease: (i) there is a transfer of ownership of the leased asset to Vertex by the end of the lease term, (ii) we hold an option to purchase the leased asset that we are reasonably certain to exercise, (iii) the lease term is for a major part of the remaining economic life of the leased asset, (iv) the present value of the sum of lease payments equals or exceeds substantially all of the fair value of the leased asset, or (v) the nature of the leased asset is specialized to the point that it is expected to provide the lessor no alternative use at the end of the lease term. All other leases are recorded as operating leases.

Finance and operating lease assets and liabilities are recognized at the lease commencement date based on the present value of the lease payments over the lease term using the discount rate implicit in the lease. If the rate implicit is not readily determinable, we utilize our incremental borrowing rate at the lease commencement date. Operating lease assets are further adjusted for prepaid or accrued lease payments. Operating lease payments are expensed using the straight-line method as an operating expense over the lease term. Finance lease assets are amortized to depreciation expense using the straight-line method over the shorter of the useful life of the related asset or the lease term. Finance lease payments are bifurcated into (i) a portion that is recorded as imputed interest expense and (ii) a portion that reduces the finance liability associated with the lease.

For our real estate leases, we account for lease and fixed non-lease components together as a single lease component. For our embedded leases with contract manufacturing organizations, we account for the lease component separately from the non-lease components. Variable lease payments are expensed as incurred. If a lease includes an option to extend or terminate the lease, we reflect the option in the lease term if it is reasonably certain we will exercise the option.

Finance leases are recorded in “Property and equipment, net,” “Other current liabilities” and “Long-term finance lease liabilities,” and operating leases are recorded in “Operating lease assets,” “Other current liabilities” and “Long-term operating lease liabilities” on our consolidated balance sheets.

Income Taxes

Our provision for income taxes is accounted for under the asset and liability method and includes federal, state, local and foreign taxes.

Deferred tax assets and liabilities are recognized for the estimated future tax consequences of temporary differences between the financial statement carrying amounts and the income tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences are expected to be recovered or settled. A valuation allowance is applied against any net deferred tax asset if,

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

based on the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. On a periodic basis, we reassess the valuation allowance on our deferred income tax assets weighing positive and negative evidence to assess the recoverability of our deferred tax assets. We include, among other things, our recent financial performance and our future projections in this periodic assessment.

We record liabilities related to uncertain tax positions by prescribing a minimum recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. We evaluate our uncertain tax positions on a quarterly basis and consider various factors, including, but not limited to, changes in tax law, the measurement of tax positions taken or expected to be taken in our tax returns, and changes in facts or circumstances related to a tax position. We adjust our liabilities to reflect any subsequent changes in the relevant facts and circumstances surrounding the uncertain positions. We accrue interest and penalties related to unrecognized tax benefits as a component of our “Provision for income taxes.”

As part of the U.S. Tax Cut and Jobs Act of 2017, we are subject to a territorial tax system, under which we must establish an accounting policy to provide for tax on Global Intangible Low Taxed Income (“GILTI”) earned by certain foreign subsidiaries. We have elected to treat the impact of GILTI as a current tax expense in our “Provision for income taxes.”

Fair Value of Contingent Consideration

We base our estimates of the probability of achieving the milestones relevant to the fair value of contingent payments on industry data and our knowledge of the programs and viability of the programs. Estimates included in the discounted cash flow models pertaining to contingent payments also include: (i) estimates regarding the timing of the relevant development and commercial milestones and royalties, and (ii) and appropriate discount rates. We record any increases or decreases in the fair value of our contingent payments to “Change in fair value of contingent consideration” in our consolidated statements of income. We record our contingent consideration liabilities at fair value on our consolidated balance sheets as “Other current liabilities” or “Other long-term liabilities” depending on when we estimate we will pay them. Please refer to Note D, “Fair Value Measurements,” for further information.

In-process Research and Development Assets

We record the fair value of in-process research and development assets as of the transaction date of a business combination on our consolidated balance sheets as “Other intangible assets, net.” These assets are used in research and development activities but have not yet reached technological feasibility, which occurs when we complete the research and development efforts by obtaining regulatory approval to market an underlying product candidate. We characterize in-process research and development assets on our consolidated balance sheets as indefinite-lived intangible assets until either they achieve regulatory approval and become finite-lived intangible assets, or the assets are impaired. Upon completion of the associated research and development efforts, we will determine the remaining estimated life of the marketed product and begin amortizing the carrying value of the assets over this period. If the assets become impaired or are abandoned, the carrying value is written down to fair value, and we record an impairment charge in the period in which the impairment occurs. We test in-process research and development assets for impairment on an annual basis as of October 1, and more frequently if indicators are present or changes in circumstances suggest that impairment may exist.

The fair value of our in-process research and development assets is determined using either the multi-period excess earnings or the relief from royalty methods of the income approach. Each method requires us to make: (i) assumptions regarding the probability of obtaining marketing approval for a product candidate; (ii) estimates of future cash flows from potential product sales with respect to a product candidate; and (iii) appropriate discount and tax rates. The multi-period excess earnings method also requires us to estimate the timing of and the expected costs to develop and commercialize a product candidate. The relief from royalty method also requires us to estimate the after-tax royalty savings expected from ownership of a product candidate that we acquired.

Finite-lived Intangible Assets

We record finite-lived intangible assets at cost, net of accumulated amortization, on our consolidated balance sheets as “Other intangible assets, net.” Most of these assets relates to our marketed products and may include, among other things,

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

completed research and development projects that were previously reflected on our consolidated balance sheets as in-process research and development assets, or rights to developed technology associated with in-licenses, regulatory approval milestones due to our collaborators, or other payments. We amortize our finite-lived intangible assets related to our marketed products using the straight-line method within “Cost of sales” over the remaining estimated life of the assets beginning in the period in which regulatory approval is achieved or the assets are acquired and continuing through the period that we no longer have either exclusive rights to market the products associated with the assets or in-license rights to the intellectual property underlying the assets.

We test our finite-lived intangible assets for impairment if indicators are present or changes in circumstances suggest that the carrying value of the assets may not be recoverable. If we determine that the carrying value of a finite-lived intangible asset may not be recoverable, we compare the carrying value of the asset’s group to the undiscounted cash flows that we expect the asset group to generate. When we determine that a finite-lived intangible asset has become impaired, we write down the carrying value of the asset to its fair value and record an impairment charge in the period in which the impairment occurs.

Goodwill

The difference between the purchase price and the fair value of assets acquired and liabilities assumed in a business combination is allocated to goodwill. Goodwill is evaluated for impairment by reporting unit on an annual basis as of October 1, and more frequently if indicators are present or changes in circumstances suggest that impairment may exist. As noted in Basis of Presentation above, we have one operating segment, pharmaceuticals, which is our only reporting unit.

Hedging Activities

We recognize the fair value of our foreign currency forward contracts that are designated and qualify as hedging instruments pursuant to U.S. GAAP as either assets or liabilities on our consolidated balance sheets. Changes in the fair value of these instruments are recorded each period in “Accumulated other comprehensive income (loss)” as unrealized gains and losses until the forecasted underlying transaction occurs. Unrealized gains and losses on these foreign currency forward contracts are included in “Prepaid expenses and other current assets” or “Other assets,” and “Other current liabilities” or “Other long-term liabilities,” respectively, on our consolidated balance sheets depending on the remaining period until their contractual maturity. Realized gains and losses for the effective portion of such contracts are recognized in “Product revenues, net” in our consolidated statement of income in the same period that we recognize the product revenues that were impacted by the hedged foreign exchange rate changes. We classify the cash flows from hedging instruments in the same category as the cash flows from the hedged items.

Certain of our hedging instruments are subject to master netting arrangements to reduce the risk arising from such transactions with our counterparties. We present unrealized gains and losses on our foreign currency forward contracts on a gross basis within our consolidated balance sheets.

We also enter into foreign currency forward contracts, typically with contractual maturities of approximately one month designed to mitigate the effect of changes in foreign exchange rates on monetary assets and liabilities including intercompany balances. These contracts are not designated as hedging instruments pursuant to U.S. GAAP. Realized gains and losses for such contracts are recognized in “Other expense, net” in our consolidated statements of income each period.

Comprehensive Income (Loss)

Comprehensive income (loss) consists of net income (loss) and other comprehensive income (loss), which includes foreign currency translation adjustments and unrealized gains and losses on foreign currency forward contracts and our available-for-sale debt securities. For purposes of comprehensive income disclosures, we record provisions for or benefits from income taxes related to the unrealized gains and losses on foreign currency forward contracts and our available-for-sale debt securities. We record provisions for or benefits from income taxes related to our cumulative translation adjustment only for those undistributed earnings in our foreign subsidiaries that we do not intend to permanently reinvest.

F-16

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Foreign Currency Translation and Transactions

The majority of our operations occur in entities that have the U.S. dollar denominated as their functional currency. The assets and liabilities of our entities with functional currencies other than the U.S. dollar are translated into U.S. dollars at exchange rates in effect at the end of the year. Revenue and expense amounts for these entities are translated using the average exchange rates for the period. Changes resulting from foreign currency translation are included in “Accumulated other comprehensive income (loss).” Net foreign currency exchange transaction losses, which are included in “Other expense, net” on our consolidated statements of income, were $27.3 million, $24.6 million and $15.1 million for 2024, 2023 and 2022, respectively. These net foreign currency exchange losses are presented net of the impact of the foreign currency forward contracts designed to mitigate their effect on our consolidated statements of income.

Share Repurchase Programs

Repurchases of our common stock are recorded as reductions to “Common Stock” and “Additional paid-in capital” pursuant to our established accounting policy. Repurchases in excess of the par value will be recorded as reductions to “Retained earnings” in the event that “Additional paid-in capital” is reduced to zero.

Net Income (Loss) Per Common Share

Basic net income (loss) per common share is based upon the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per common share utilizing the treasury-stock method is based upon the weighted-average number of common shares outstanding during the period plus additional weighted-average common equivalent shares outstanding during the period when the effect is dilutive. Potentially dilutive shares result from the assumed (i) vesting of restricted stock units (“RSUs”) and performance-based restricted stock units (“PSUs”), and (ii) exercise of outstanding stock options. The proceeds of such vestings or exercises are assumed to have been used to repurchase outstanding stock using the treasury-stock method.

Recently Adopted Accounting Standards

Segment Reporting

In 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (“ASU 2023-07”), which requires public entities to disclose significant segment expenses and other segment items. ASU 2023-07 also requires public entities to provide in interim periods all disclosures about a reportable segment’s profit or loss and assets that are currently required annually. ASU 2023-07 became effective for the annual period starting on January 1, 2024, and for the interim periods starting on January 1, 2025. We have disclosed significant segment expenses, other segment items, and our measure of segment profit or loss in Note Q, “Segment Information.”

Recently Issued Accounting Standards

Income Tax Disclosures

In 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”), which requires public entities to disclose in their rate reconciliation table additional categories of information about federal, state and foreign income taxes and to provide more details about the reconciling items in some categories if items meet a quantitative threshold. ASU 2023-09 becomes effective for the annual period starting on January 1, 2025. We anticipate that the adoption of ASU 2023-09 will expand our income tax footnote disclosures, including a more detailed effective tax rate reconciliation.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Disaggregation of Income Statement Expenses

In 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (“ASU 2024-03”), which requires public entities, among other items, to disclose in a tabular format, on an annual and interim basis, purchases of inventory, employee compensation, depreciation, intangible asset amortization and depletion for each income statement line item that contains those expenses. ASU 2024-03 becomes effective for the annual period starting on January 1, 2027 and interim periods starting on January 1, 2028. We are in the process of analyzing the impact that the adoption of ASU 2024-03 will have on our disclosures.

**B.**Collaboration, License and Other Arrangements

We have entered into numerous business development agreements with third parties to collaborate on research, development and commercialization programs, license technologies, or acquire assets. Our AIPR&D included $4.6 billion, $527.1 million and $115.5 million in 2024, 2023 and 2022, respectively, related to upfront, contingent milestone, or other payments pursuant to our business development transactions, including asset acquisitions, collaborations, and licenses of third-party technologies. In 2024, our AIPR&D included $4.4 billion associated with our asset acquisition of Alpine Immune Sciences, Inc. (“Alpine”) as discussed below.

Asset Acquisitions

Alpine Immune Sciences, Inc. - povetacicept

On May 20, 2024, we acquired all of the issued and outstanding shares of common stock of Alpine, a publicly traded biotechnology company focused on discovering and developing innovative, protein-based immunotherapies for approximately $5.0 billion in cash. We funded the Alpine acquisition with our cash and cash equivalents.

Alpine’s lead molecule, povetacicept, is a highly potent and effective dual antagonist of B cell activating factor (“BAFF”) and a proliferation-inducing ligand (“APRIL”). As of the acquisition date, povetacicept was in Phase 2 development and had shown potential best-in-class efficacy in IgA nephropathy (“IgAN”), a serious, progressive, autoimmune disease of the kidney that can lead to end-stage-renal disease. Due to its mechanism of action as a dual BAFF/APRIL antagonist, povetacicept also holds the potential to benefit patients with other serious autoimmune diseases of the kidney, such as membranous nephropathy and lupus nephritis. We accounted for the Alpine transaction as an asset acquisition because povetacicept represented substantially all of the fair value of the gross assets that we acquired. As a result, $4.4 billion of fair value attributed to povetacicept was expensed to AIPR&D in 2024.

We paid total cash of $5.0 billion at the acquisition date, which included $4.8 billion to acquire Alpine and $197.6 million for cash-settled unvested Alpine equity awards. The $197.6 million represented post-acquisition expense, which was recorded as $165.0 million of “Research and development expenses” and $32.6 million of “Selling, general and administrative expenses.”

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

The total cash paid to acquire Alpine, allocation of consideration to the assets acquired and liabilities assumed and AIPR&D was as follows:

(in millions)
Cash consideration to acquire Alpine’s outstanding common stock$4,536.9
Cash consideration for Alpine’s vested and unvested equity awards420.6
Total cash consideration paid to Alpine4,957.5
Less: Expense related to unvested equity awards(197.6)
Transaction costs40.7
Total consideration allocated$4,800.6
Cash and cash equivalents$31.9
Current marketable securities209.5
Long-term marketable securities48.5
Deferred tax asset105.5
Total other assets19.5
Total liabilities(37.5)
Total identifiable assets acquired, net377.4
Acquired in-process research and development expense4,423.2
Total consideration allocated$4,800.6

Septerna, Inc. - Novel G Protein-coupled Receptor Program

In 2023, pursuant to an asset purchase agreement, we acquired a novel G protein-coupled receptor (“GPCR”) program from Septerna, Inc. We determined that substantially all the fair value acquired was concentrated in the GPCR in-process research and development asset, which did not constitute a business, and for which we determined there was no alternative future use. As a result, we recorded $47.5 million to AIPR&D in 2023.

Catalyst Biosciences, Inc. - Complement 3 Degrader Program

In 2022, pursuant to an asset purchase agreement, we acquired from Catalyst Biosciences, Inc.’s a portfolio of protease medicines that target the complement system and related intellectual property, including CB 2782-PEG, which is a pre-clinical complement component 3 degrader program for geographic atrophy in dry age-related macular degeneration. We determined that substantially all the fair value acquired was concentrated in the CB-2782 PEG in-process research and development assets, which did not constitute a business, and for which we determined there was no alternative future use. As a result, we recorded our $60.0 million upfront payment to AIPR&D in 2022.

In-license Agreements

We have entered into several in-license agreements to advance and obtain access to technologies and services related to our research and early-development activities. We are generally required to make an upfront payment upon execution of our license agreements; development, regulatory and commercialization milestones payments upon the achievement of certain product research, development and commercialization objectives; and royalty payments on future sales, if any, of commercial products resulting from our collaborations.

Pursuant to the terms of our in-license agreements, our collaborators typically lead the discovery efforts and we lead all preclinical, development and commercialization activities associated with the advancement of any product candidates and fund all expenses.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

We typically can terminate our in-license agreements by providing advance notice to our collaborators. Our license agreements may be terminated by either party for a material breach by the other, subject to notice and cure provisions. Unless earlier terminated, these license agreements generally remain in effect until the date on which the royalty term and all payment obligations with respect to all products in all countries have expired.

CRISPR Therapeutics AG

CRISPR-Cas9 Gene-editing Therapies Agreements

In 2015, we entered into a strategic collaboration, option and license agreement (the “CRISPR Agreement”) with CRISPR and its affiliates to collaborate on the discovery and development of potential new treatments aimed at the underlying genetic causes of human diseases using CRISPR-Cas9 gene-editing technology. We had the exclusive right to license certain targets. In 2019, we elected to exclusively license three targets, including CF, pursuant to the CRISPR Agreement. For each of the three targets that we elected to license, CRISPR has the potential to receive up to an additional $410.0 million in development, regulatory and commercial milestones as well as royalties on resulting net product sales.

In 2017, we entered into a joint development and commercialization agreement with CRISPR (the “CRISPR JDCA”), which we amended and restated in 2021, pursuant to the terms of the CRISPR Agreement. Under the CRISPR JDCA, we and CRISPR were co-developing and preparing to co-commercialize CASGEVY for the treatment of hemoglobinopathies, including treatments for SCD and TDT.

Pursuant to the CRISPR JDCA, we lead global development, manufacturing and commercialization of CASGEVY, with support from CRISPR. We also conduct all research, development, manufacturing and commercialization activities relating to other product candidates and products under the CRISPR JDCA throughout the world subject to CRISPR’s reserved right to conduct certain activities.

CASGEVY was approved by the FDA in December 2023 for the treatment of SCD. In connection with this approval, we made a $200.0 million milestone payment to CRISPR in January 2024, which we accrued to “Other current liabilities” and recorded within “Other intangible assets, net” on our consolidated balance sheet as of December 31, 2023. Please refer to Note J, “Goodwill and Other Intangible Assets,” for further information. Subsequent to receiving marketing approval for CASGEVY, we continue to lead the research and development activities under the CRISPR JDCA, subject to CRISPR’s reserved right to conduct certain activities. We are reimbursed by CRISPR for its 40% share of these research and development activities, subject to certain adjustments, and we record this reimbursement from CRISPR as a credit within “Research and development expenses.” We also share with CRISPR 40% of the net commercial profits or losses incurred with respect to CASGEVY, subject to certain adjustments, which is recorded to “Cost of sales.” The net commercial profits or losses equal the sum of the product revenues, cost of sales and selling, general and administrative expenses that we have recognized related to the CRISPR JDCA. In 2024, we recognized net reimbursements from CRISPR pursuant to the CRISPR JDCA as credits to “Cost of sales” of $73.5 million related to CRISPR’s share of the CRISPR JDCA’s net commercial loss, and to “Research and development expenses” of $31.6 million, related to CRISPR’s share of the CRISPR JDCA’s research and development activities.

Prior to receiving marketing approval from the FDA for CASGEVY in December 2023, we accounted for the CRISPR JDCA as a cost-sharing arrangement, with costs incurred related to CASGEVY allocated 60% to us and 40% to CRISPR, subject to certain adjustments. In 2023 and 2022, we recognized net reimbursements from CRISPR as credits to “Research and development expenses” of $61.9 million and $30.5 million, respectively, and to “Selling, general and administrative expenses” of $32.0 million and $24.2 million, respectively, related to CRISPR’s share of the CRISPR JDCA’s operating expenses.

CRISPR-Cas9 Gene-editing Hypoimmune Cell Therapies Agreement

In 2023, we entered into a non-exclusive license agreement (the “CRISPR T1D Agreement”) for the use of CRISPR’s CRISPR-Cas9 gene-editing technology to accelerate the development of our hypoimmune cell therapies for T1D. Pursuant to the CRISPR T1D Agreement, we made a $100.0 million upfront payment to CRISPR, and we determined that substantially all the fair value of our upfront payment was attributable to in-process research and development, for which there is no alternative future use, and that no substantive processes were acquired that would constitute a business. In the second quarter

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

of 2023, we achieved a research milestone that resulted in a $70.0 million payment to CRISPR. We recorded the upfront payment and the research milestone, totaling $170.0 million, to AIPR&D in 2023. In 2024, we achieved additional research milestone totaling $35.0 million, which were recorded to AIPR&D. CRISPR is eligible to receive up to an additional $125.0 million in research, development, regulatory and commercial milestones, as well as royalties on resulting net product sales.

Orna Therapeutics

In December 2024, we entered into a strategic collaboration and license agreement (the “Orna Agreement”) with Orna Therapeutics (“Orna”) to utilize Orna’s novel and proprietary lipid nanoparticle delivery solutions to enhance our efforts in developing next generation gene-editing therapies for patients with SCD and TDT. Under the terms of the agreement, we made a $40.0 million upfront payment to Orna and paid an additional $25.0 million for a convertible promissory note in connection with the agreement. Orna is eligible to receive up to $635.0 million in research, development, regulatory and commercial milestones for SCD or TDT products that may result from the collaboration agreement. Orna is also eligible to receive up to $365.0 million in option and milestone payments for each additional indication that we elect to license pursuant to the Orna Agreement. Orna will also receive royalties on net product sales for SCD and TDT and each additional indication we license pursuant to the Orna Agreement. We determined that substantially all the fair value of the upfront payment was attributable to in-process research and development, for which there was no alternative future use and that no substantive processes were acquired that would constitute a business. As a result, we recorded the upfront payment to AIPR&D. We recorded the convertible promissory note at amortized cost within “Other assets” after concluding that its fair value approximated its contractual value.

Entrada Therapeutics, Inc.

In 2023, we closed a strategic collaboration and license agreement (the “Entrada Agreement”) with Entrada Therapeutics, Inc. (“Entrada”) focused on discovering and developing intracellular therapeutics for DM1. Upon closing, we made an upfront payment of $225.1 million to Entrada, and purchased $24.9 million of Entrada’s common stock in connection with the Entrada Agreement. We determined that substantially all the fair value of our upfront payment was attributable to in-process research and development, for which there was no alternative future use, and that no substantive processes were acquired that would constitute a business. In 2024 and 2023, Entrada also earned milestones of $75.0 million and $17.5 million, respectively. As a result, we recorded $75.0 million and $242.6 million in total to AIPR&D in 2024 and 2023, respectively. We recorded the investment in Entrada’s common stock at fair value on our consolidated balance sheet within “Marketable securities.” Entrada is eligible to receive up to an additional $335.0 million in research, development, regulatory and commercial milestones for any products that may result from the Entrada Agreement, as well as royalties on resulting net product sales.

Moderna, Inc.

In 2016, we entered into a strategic collaboration and licensing agreement with Moderna, Inc. (“Moderna”), pursuant to which the parties are seeking to identify and develop messenger ribonucleic acid (“mRNA”) therapeutics encoding cystic fibrosis transmembrane conductance regulator for the treatment of CF. Moderna is eligible to receive up to $270.0 million in development and regulatory milestones as well as royalties on net product sales related to this agreement.

Additional In-License Agreements and Other Arrangements

In addition to the agreements described above, we recorded upfront, option and milestone payments totaling $55.2 million in 2024, $67.0 million in 2023 and $55.5 million in 2022 to AIPR&D related to additional in-license agreements and other business development transactions that we do not consider to be individually significant to our consolidated financial statements. For each of these transactions, we determined that substantially all the fair value of the consideration for each individual agreement was attributable to in-process research and development, for which we did not have any alternative future use, and no substantive processes were acquired that would constitute a business.

Please refer to Note D, “Fair Value Measurements,” and Note E, “Marketable Securities and Equity Investments,” for further information regarding our investments in our collaborators.

F-21

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Editas Medicine, Inc.

In December 2023, we entered into a sublicense agreement (the “Editas Agreement”) with Editas Medicine, Inc. (“Editas”) to obtain a non-exclusive license for Editas CRISPR/Cas9 gene-editing technology related to SCD and TDT, including CASGEVY. Pursuant to the Editas Agreement, we made a $50.0 million upfront payment to Editas and Editas is eligible to receive an additional $50.0 million license payment upon the resolution of certain contingencies related to Editas’ license to the technology. Editas is also eligible to receive commercial milestones based on certain annual CASGEVY sales thresholds. Pursuant to the CRISPR JDCA described above, CRISPR reimbursed us for 40%, or $20.0 million, of the upfront payment, and would also reimburse us for 40% of the additional contingent $50.0 million license payment, subject to certain adjustments. We recorded the net $30.0 million upfront payment related to our sublicense for Editas’ developed technology to “Other intangible assets, net” on our consolidated balance sheet as of December 31, 2023.

Out-license Agreements

We have entered into licensing agreements pursuant to which we have out-licensed rights to certain product candidates to third-party collaborators. Pursuant to these out-license agreements, our collaborators may become responsible for all costs related to the continued development of such product candidates and obtain development and commercialization rights to these product candidates, either globally or within certain geographic regions. Depending on the terms of the agreements, our collaborators may be required to make upfront payments, milestone payments upon the achievement of certain product research, development and regulatory objectives and may also be required to pay royalties on future sales, if any, of commercial products resulting from the collaboration. The termination provisions associated with these collaborations are generally the same as those described above related to our in-license agreements.

Zai Lab Limited

In January 2025, we entered into a collaboration agreement with Zai Lab Limited (“Zai”) for the development and commercialization of povetacicept in mainland China, Hong Kong SAR, Macau SAR, Taiwan region and Singapore. Under this collaboration, Zai will help advance the povetacicept clinical trials and make the regulatory submissions in the licensed territories. Zai will also be responsible for commercialization activities in the licensed territories, if povetacicept becomes an approved product. Under the terms of the agreement, we will receive a $10.0 million upfront payment in the first quarter of 2025, as well as certain regulatory milestone payments and tiered royalties, on future net sales of povetacicept in the region of focus for Zai.

Cystic Fibrosis Foundation

In 2004, we entered into a collaboration agreement with the Cystic Fibrosis Foundation, as successor in interest to the Cystic Fibrosis Foundation Therapeutics, Inc., to support research and development activities. Pursuant to the collaboration agreement, as amended, we have agreed to pay tiered royalties ranging from single digits to sub-teens on covered compounds first synthesized and/or tested during a research term on or before February 28, 2014, including ivacaftor, lumacaftor and tezacaftor and royalties ranging from low-single digits to mid-single digits on net sales of certain compounds first synthesized and/or tested between March 1, 2014 and August 31, 2016, including elexacaftor. We do not have any royalty obligations on compounds first synthesized and tested on or after September 1, 2016. For combination products, such as ORKAMBI, SYMDEKO/SYMKEVI, TRIKAFTA/KAFTRIO, and ALYFTREK sales are allocated equally to each of the active pharmaceutical ingredients in the combination product, and royalties are then paid for any royalty-bearing components included in the combination. We record expenses related to these royalty obligations to “Cost of sales.”

F-22

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

**C.**Earnings Per Share

The following table sets forth the computation of basic and diluted net (loss) income per common share for the periods ended:

Year ended December 31,
202420232022
(in millions, except per share amounts)
Net (loss) income$(535.6)$3,619.6$3,322.0
Basic weighted-average common shares outstanding257.9257.7256.1
Effect of potentially dilutive securities:
Restricted stock units (including PSUs)—1.61.6
Stock options—1.21.4
Employee stock purchase program—0.00.0
Diluted weighted-average common shares outstanding257.9260.5259.1
Basic net (loss) income per common share$(2.08)$14.05$12.97
Diluted net (loss) income per common share$(2.08)$13.89$12.82

We did not include the securities in the following table in the computation of the diluted net (loss) income per common share because the effect would have been anti-dilutive during each period:

Year ended December 31,
202420232022
(in millions)
Unvested restricted stock units (including PSUs)0.80.10.2
Stock options0.40.00.0

**D.**Fair Value Measurements

The following fair value hierarchy is used to classify assets and liabilities based on observable inputs and unobservable inputs used to determine the fair value of our financial assets and liabilities:

Level 1:Quoted prices in active markets for identical assets or liabilities. An active market for an asset or liability is a market in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis.
Level 2:Observable inputs other than Level 1 inputs. Examples of Level 2 inputs include quoted prices in active markets for similar assets or liabilities and quoted prices for identical assets or liabilities in markets that are not active.
Level 3:Unobservable inputs based on our assessment of the assumptions that market participants would use in pricing the asset or liability.

Our investment strategy is focused on capital preservation. We invest in instruments that meet the credit quality standards outlined in our investment policy, which also limits the amount of credit exposure to any one issue or type of instrument. We utilize foreign currency forward contracts intended to mitigate the effect of changes in foreign exchange rates on our consolidated statements of income.

F-23

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

The following tables set forth our financial assets and liabilities subject to fair value measurements by level within the fair value hierarchy:

As of December 31, 2024As of December 31, 2023
Fair Value HierarchyFair Value Hierarchy
TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3
(in millions)
Financial instruments carried at fair value (asset positions):
Cash equivalents$1,687.1$613.3$1,073.8$—$7,033.9$5,397.3$1,636.6$—
Marketable securities:
Corporate equity securities36.636.6——46.046.0——
U.S. Treasury securities1,602.01,566.835.2—546.5546.5——
U.S. government agency securities240.5—240.5—425.2—425.2—
Asset-backed securities1,244.2—1,244.2—306.0—306.0—
Certificates of deposit————33.7—33.7—
Corporate debt securities3,525.9—3,525.9—1,802.8—1,802.8—
Commercial paper5.0—5.0—186.8—186.8—
Prepaid expenses and other current assets:
Foreign currency forward contracts130.1—130.1—1.8—1.8—
Other assets:
Foreign currency forward contracts12.4—12.4—————
Total financial assets$8,483.8$2,216.7$6,267.1$—$10,382.7$5,989.8$4,392.9$—
Financial instruments carried at fair value (liability positions):
Other current liabilities:
Foreign currency forward contracts$—$—$—$—$(33.7)$—$(33.7)$—
Other long-term liabilities:
Contingent consideration(76.9)——(76.9)(77.4)——(77.4)
Total financial liabilities$(76.9)$—$—$(76.9)$(111.1)$—$(33.7)$(77.4)

Please refer to Note E, “Marketable Securities and Equity Investments,” for the carrying amount and related unrealized gains (losses) by type of investment. Our cash equivalents primarily include money market funds and time deposits.

Fair Value of Corporate Equity Securities

We classify our investments in publicly traded corporate equity securities as “Marketable securities” on our consolidated balance sheets. Generally, our investments in the common stock of publicly traded companies are valued based on Level 1 inputs because they have readily determinable fair values. However, certain of our investments in publicly traded companies have been or continue to be valued based on Level 2 inputs due to transfer restrictions associated with these investments.

As of December 31, 2024, one of our investments in publicly traded corporate equity securities was subject to a contractual sales restriction with a total fair value of $14.0 million, which expired in February 2025.

Please refer to Note E, “Marketable Securities and Equity Investments,” for further information on these investments.

Fair Value of Contingent Consideration

In 2019, we acquired Exonics Therapeutics, Inc. (“Exonics”), a privately held company focused on creating transformative gene-editing therapies to repair mutations that cause Duchenne muscular dystrophy and other severe neuromuscular diseases, including DM1. Our Level 3 contingent consideration liabilities are related to $678.3 million of development and regulatory milestones potentially payable to former Exonics equity holders. We base our estimates of the probability of achieving the milestones relevant to the fair value of contingent payments on industry data attributable to gene therapies and our knowledge of the progress and viability of the programs. The discount rates used in the valuation model for

F-24

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

contingent payments, which were between 4.9% and 5.1% as of December 31, 2024, represent a measure of credit risk and market risk associated with settling the liabilities.

The following table represents a rollforward of the fair value of our contingent consideration liabilities:

Year Ended December 31, 2024
(in millions)
Balance at December 31, 2023$77.4
Decrease in fair value of contingent payments(0.5)
Balance at December 31, 2024$76.9

Significant judgment is used in determining the appropriateness of these assumptions at each reporting period. Due to the uncertainties associated with development and commercialization of product candidates in the pharmaceutical industry and the effects of changes in other assumptions including discount rates, we expect our estimates regarding the fair value of contingent consideration to continue to change in the future, resulting in adjustments to the fair value of our contingent consideration liabilities, and the effect of any such adjustments could be material.

F-25

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

**E.**Marketable Securities and Equity Investments

A summary of our cash equivalents and marketable securities, which are recorded at fair value, is shown below:

As of December 31, 2024As of December 31, 2023
Amortized CostGross Unrealized GainsGross Unrealized LossesFair ValueAmortized CostGross Unrealized GainsGross Unrealized LossesFair Value
(in millions)
Cash equivalents$1,687.1$—$—$1,687.1$7,033.9$—$—$7,033.9
Marketable securities:
U.S. Treasury securities$1,603.9$3.6$(5.5)$1,602.0$544.5$3.0$(1.0)$546.5
U.S. government agency securities240.50.5(0.5)240.5424.80.9(0.5)425.2
Asset-backed securities1,239.65.1(0.5)1,244.2304.91.4(0.3)306.0
Certificates of deposit————33.70.0(0.0)33.7
Corporate debt securities3,519.410.6(4.1)3,525.91,794.010.5(1.7)1,802.8
Commercial paper5.00.0(0.0)5.0186.80.1(0.1)186.8
Total marketable available-for-sale debt securities6,608.419.8(10.6)6,617.63,288.715.9(3.6)3,301.0
Corporate equity securities72.13.0(38.5)36.672.1—(26.1)46.0
Total marketable securities6,680.522.8(49.1)6,654.23,360.815.9(29.7)3,347.0
Total cash equivalents and marketable securities$8,367.6$22.8$(49.1)$8,341.3$10,394.7$15.9$(29.7)$10,380.9

Amounts in the table above at fair value were classified on our consolidated balance sheets as follows:

December 31,
20242023
(in millions)
Cash and cash equivalents$1,687.1$7,033.9
Marketable securities1,546.3849.2
Long-term marketable securities5,107.92,497.8
Total$8,341.3$10,380.9

Marketable available-for-sale debt securities by contractual maturity were as follows:

December 31,
20242023
(in millions)
Matures within one year$1,509.7$803.2
Matures after one year through five years5,034.42,495.6
Matures after five years73.52.2
Total$6,617.6$3,301.0

We did not record any allowances for credit losses to adjust the fair value of our marketable available-for-sale debt securities in 2024, 2023 or 2022. Additionally, we did not record any realized gains or losses that were material to our consolidated statements of income in 2024, 2023 or 2022. As of December 31, 2024, we held marketable available-for-sale debt securities with a total fair value of $2.2 billion that were in unrealized loss positions totaling $10.6 million. Included in this amount were marketable available-for sale debt securities with a total fair value of $19.1 million and total unrealized loss of $0.1 million that had been in unrealized loss positions for greater than twelve months. We intend to hold these investments until maturity and do not expect to incur realized losses on these investments when they mature.

F-26

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

We record changes in the fair value of our investments in corporate equity securities to “Other expense, net” in our consolidated statements of income. During the three years ended December 31, 2024, our net unrealized losses on corporate equity securities with readily determinable fair values held at the conclusion of each period were as follows:

Year ended December 31,
202420232022
(in millions)
Net unrealized losses$(9.5)$(7.5)$(149.1)

In 2023, we received proceeds of $95.1 million related to the sale of the common stock of a publicly traded company, which had a total original cost basis of $57.3 million. In 2024 and 2022, we did not sell any common stock of publicly traded companies.

As of December 31, 2024, the carrying value of our equity investments without readily determinable fair values, which are recorded in “Other assets” on our consolidated balance sheets, was $64.8 million. During 2024, we reduced the carrying value of our equity investments without readily determinable fair values by $48.2 million based on observable changes in price.

**F.**Accumulated Other Comprehensive Income (Loss)

The following table summarizes the changes in accumulated other comprehensive income (loss) by component:

Unrealized Holding Gains (Losses), Net of Tax
Foreign Currency Translation AdjustmentOn Available-For-Sale Debt SecuritiesOn Foreign Currency Forward ContractsTotal
(in millions)
Balance at December 31, 2021$(13.6)$(0.5)$30.0$15.9
Other comprehensive (loss) income before reclassifications(11.4)(3.3)138.9124.2
Amounts reclassified from accumulated other comprehensive income (loss)3.7(143.0)(139.3)
Net current period other comprehensive (loss) income(11.4)0.4(4.1)(15.1)
Balance at December 31, 2022$(25.0)$(0.1)$25.9$0.8
Other comprehensive income (loss) before reclassifications26.19.7(27.2)8.6
Amounts reclassified from accumulated other comprehensive income (loss)(23.7)(23.7)
Net current period other comprehensive income (loss)26.19.7(50.9)(15.1)
Balance at December 31, 2023$1.1$9.6$(25.0)$(14.3)
Other comprehensive income (loss) before reclassifications8.6(4.4)163.8168.0
Amounts reclassified from accumulated other comprehensive income (loss)—1.9(27.8)(25.9)
Net current period other comprehensive income (loss)8.6(2.5)136.0142.1
Balance at December 31, 2024$9.7$7.1$111.0$127.8

F-27

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

**G.**Hedging

Foreign currency forward contracts - Designated as hedging instruments

We maintain a hedging program intended to mitigate the effect of changes in foreign exchange rates for a portion of our forecasted product revenues denominated in certain foreign currencies. The program includes foreign currency forward contracts that are designated as cash flow hedges under U.S. GAAP having contractual durations from one to eighteen months. We recognize realized gains and losses for the effective portion of such contracts in “Product revenues, net” in our consolidated statements of income in the same period that we recognize the product revenues that were impacted by the hedged foreign exchange rate changes.

We formally document the relationship between foreign currency forward contracts (hedging instruments) and forecasted product revenues (hedged items), as well as our risk management objective and strategy for undertaking various hedging activities, which includes matching all foreign currency forward contracts that are designated as cash flow hedges to forecasted transactions. We also formally assess, both at the hedge’s inception and on an ongoing basis, whether the foreign currency forward contracts are highly effective in offsetting changes in cash flows of hedged items on a prospective and retrospective basis. If we were to determine that a (i) foreign currency forward contract is not highly effective as a cash flow hedge, (ii) foreign currency forward contract has ceased to be a highly effective hedge or (iii) forecasted transaction is no longer probable of occurring, we would discontinue hedge accounting treatment prospectively. We measure effectiveness based on the change in fair value of the forward contracts and the fair value of the hypothetical foreign currency forward contracts with terms that match the critical terms of the risk being hedged. As of December 31, 2024, all hedges were determined to be highly effective.

We consider the impact of our counterparties’ credit risk on the fair value of the foreign currency forward contracts. As of December 31, 2024 and December 31, 2023, credit risk did not change the fair value of our foreign currency forward contracts.

The following table summarizes the notional amount in U.S. dollars of our outstanding foreign currency forward contracts designated as cash flow hedges under U.S. GAAP:

As of December 31,
20242023
Foreign Currency(in millions)
Euro$1,977.4$1,720.6
Canadian dollar322.0229.5
British pound sterling301.7225.0
Australian dollar179.2153.3
Swiss Franc79.763.9
Total foreign currency forward contracts$2,860.0$2,392.3

Foreign currency forward contracts - Not designated as hedging instruments

We also enter into foreign currency forward contracts, typically with contractual maturities of approximately one month, which are designed to mitigate the effect of changes in foreign exchange rates on monetary assets and liabilities, including intercompany balances. These contracts are not designated as hedging instruments under U.S. GAAP. We recognize realized gains and losses for such contracts in “Other expense, net” in our consolidated statements of income each period. As of December 31, 2024, the notional amount of our outstanding foreign currency forward contracts where hedge accounting under U.S. GAAP is not applied was $367.0 million.

F-28

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

During the three years ended December 31, 2024, we recognized the following related to foreign currency forward contracts in our consolidated statements of income:

Year ended December 31,
202420232022
(in millions)
Designated as hedging instruments - Reclassified from AOCI
Product revenues, net$35.7$30.2$182.5
Not designated as hedging instruments
Other income (expense), net$11.7$4.4$(9.9)
Total reported in the Consolidated Statements of Income
Product revenues, net$11,020.1$9,869.2$8,930.7
Other expense, net$(86.1)$(22.8)$(164.8)

The following table summarizes the fair value of our outstanding foreign currency forward contracts designated as cash flow hedges under U.S. GAAP included on our consolidated balance sheets:

As of December 31, 2024
AssetsLiabilities
ClassificationFair ValueClassificationFair Value
(in millions)
Prepaid expenses and other current assets$130.1Other current liabilities$—
Other assets12.4Other long-term liabilities—
Total assets$142.5Total liabilities$—
As of December 31, 2023
AssetsLiabilities
ClassificationFair ValueClassificationFair Value
(in millions)
Prepaid expenses and other current assets$1.8Other current liabilities$(33.7)

As of December 31, 2024, we expect the amounts that are related to foreign exchange forward contracts designated as cash flow hedges under U.S. GAAP recorded in “Prepaid expenses and other current assets” and “Other current liabilities” to be reclassified to earnings within twelve months.

As discussed in “Note A, “Nature of Business and Accounting Policies,” we present the fair value of our foreign currency forward contracts on a gross basis within our consolidated balance sheets. The following table summarizes the potential effect of offsetting derivatives by type of financial instrument designated as cash flow hedges under U.S. GAAP on our consolidated balance sheets:

As of December 31, 2024
Gross Amounts RecognizedGross Amounts OffsetGross Amounts PresentedGross Amounts Not OffsetLegal Offset
Foreign currency forward contracts(in millions)
Total assets$142.5$—$142.5$—$142.5
Total liabilities—————

F-29

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

As of December 31, 2023
Gross Amounts RecognizedGross Amounts OffsetGross Amounts PresentedGross Amounts Not OffsetLegal Offset
Foreign currency forward contracts(in millions)
Total assets$1.8$—$1.8$(1.8)$—
Total liabilities(33.7)—(33.7)1.8(31.9)

**H.**Inventories

“Inventories” consisted of the following:

As of December 31,
20242023
(in millions)
Raw materials$252.0$78.7
Work-in-process768.8525.1
Finished goods184.6135.0
Total$1,205.4$738.8

During the first quarter of 2024, following positive results for our Phase 3 trials related to JOURNAVX, we began capitalizing inventories produced in preparation for our planned product launch. As of December 31, 2024, we had $204.6 million of JOURNAVX inventories capitalized. In January 2025, we received approval from the FDA to market JOURNAVX in the U.S. Prior to 2024, we expensed inventoriable and related costs associated with JOURNAVX as “Research and development expenses.”

**I.**Property and Equipment

“Property and equipment, net” consisted of the following:

As of December 31,
20242023
(in millions)
Buildings and improvements$461.2$928.6
Laboratory equipment, other equipment and furniture684.5579.1
Leasehold improvements737.6474.6
Computers and software376.2332.8
Land33.133.1
Total property and equipment, gross2,292.62,348.2
Less: accumulated depreciation(1,064.8)(1,188.9)
Total property and equipment, net$1,227.8$1,159.3

During 2024, we amended the leases associated with our corporate headquarters, resulting in a change to our accounting classification for the leases from finance leases to operating leases. The decrease in “Buildings and Improvements” in the table above is primarily attributable to these amendments. Please refer to Note L, “Leases,” for further information.

F-30

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

We recorded depreciation expense of $160.4 million, $167.8 million and $148.3 million in 2024, 2023 and 2022, respectively, which includes our finance lease amortization.

**J.**Goodwill and Other Intangible Assets

Intangible Assets

“Other intangible assets, net” consisted of the following:

As of December 31, 2024As of December 31, 2023
Estimated Useful livesGross Carrying AmountAccumulated AmortizationNet Carrying AmountGross Carrying AmountAccumulated AmortizationNet Carrying Amount
(in millions, except useful lives)
In-process research and developmentIndefinite$603.6$—$603.6$603.6$—$603.6
Finite-lived intangible assets - marketed products10 to 12 yrs.238.0(21.9)216.1238.0(1.7)236.3
Finite-lived intangible assets - assembled workforce3 yrs.7.7(1.5)6.2——$—
Total other intangible assets, net$849.3$(23.4)$825.9$841.6$(1.7)$839.9

In 2023, we recorded a total of $238.0 million of finite-lived intangible assets following the regulatory approval of CASGEVY in several markets, which we are amortizing on a straight-line basis over the longer of the last underlying patents to expire or the period that we have exclusive rights to market CASGEVY. We recorded intangible asset amortization expense of $20.2 million and $1.7 million to “Cost of sales” related to these assets in in 2024 and 2023, respectively.

As of December 31, 2024, the estimated future amortization of our finite-lived intangible assets was as follows:

YearEstimated Amortization Expense
(in millions)
2025$22.7
2026$22.7
2027$21.3
2028$20.2
2029$20.2

In 2022, we recorded a $13.0 million impairment of an in-process research and development intangible asset to “Research and development expenses” due to a decision to revise the scope of certain acquired gene-editing programs.

Goodwill

As of December 31, 2024 and 2023, we had goodwill of $1.1 billion on our consolidated balance sheets.

F-31

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

**K.**Additional Balance Sheet & Cash Flow Information

“Prepaid expenses and other current assets” consisted of the following:

As of December 31,
20242023
(in millions)
Tax-related prepaid and receivables$357.0$429.0
Prepaid expenses102.2108.6
Fair value of cash flow hedges130.11.8
Other76.484.3
Total$665.7$623.7

“Accrued expenses” consisted of the following:

As of December 31,
20242023
(in millions)
Product revenue accruals$1,618.9$1,716.4
Payroll and benefits352.1295.0
Research, development and commercial contract costs319.2265.2
Royalty payable271.0237.6
Tax related accruals161.199.5
Other66.341.6
Total$2,788.6$2,655.3

“Other current liabilities” consisted of the following:

As of December 31,
20242023
(in millions)
Milestones payable$32.5$222.5
Contract liabilities206.8170.3
Operating lease liabilities87.133.1
Finance lease liabilities5.250.6
Other31.450.7
Total$363.0$527.2

F-32

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

“Other long-term liabilities” consisted of the following:

As of December 31,
20242023
(in millions)
Tax-related liabilities$698.6$681.4
Contingent consideration76.977.4
Other126.3118.9
Total$901.8$877.7

Cloud Computing Service Contracts

As of December 31, 2024 and 2023, “Other assets” included $62.6 million and $58.9 million, respectively, related to costs incurred to implement cloud computing service contracts. We recorded amortization associated with cloud computing service contracts of $25.2 million and $11.8 million in 2024 and 2023, respectively. We did not have amortization associated with cloud computing service contracts in 2022.

Cash, Cash Equivalents and Restricted Cash Presented in Consolidated Statements of Cash Flows

The cash, cash equivalents and restricted cash balances at the beginning and ending of each period presented in our consolidated statements of cash flows consisted of the following:

As of December 31,
2024202320222021
(in millions)
Cash and cash equivalents$4,569.6$10,369.1$10,504.0$6,795.0
Prepaid expenses and other current assets2.63.28.05.1
Cash, cash equivalents and restricted cash per consolidated statements of cash flows$4,572.2$10,372.3$10,512.0$6,800.1

Our restricted cash, if any, is included in “Prepaid expenses and other current assets” and “Other assets” on our consolidated balance sheets.

**L.**Leases

Operating Leases

Our operating leases relate to the majority of our real estate leases and each of our embedded leases with contract manufacturing organizations.

Corporate Headquarters

In 2011, we entered into two lease agreements, pursuant to which we lease approximately 1.1 million square feet of office and laboratory space in two buildings in Boston, Massachusetts for a term of 15 years (our “Corporate Headquarters”). In August 2024, we amended the existing lease agreements to, among other terms, extend the lease termination dates from December 2028 to June 2044 (the “Amendments”). We have the option to extend the amended leases for up to two additional ten-year periods.

The Amendments did not grant us any additional rights of use not contemplated in the existing lease agreements. As a result, we have accounted for the Amendments as modifications that extend the terms of the existing leases and reassessed the classification of the leases as of their effective dates. We remeasured the lease liabilities using our incremental borrowing rate

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

as of the effective date of the Amendments and classified the leases associated with our Corporate Headquarters as operating leases because none of the finance lease criteria were met. As of December 31, 2024, the adjusted right-of-use assets associated with our Corporate Headquarters, totaling $840.0 million, were recorded within “Operating lease assets” and the long-term portion of the remeasured lease liabilities of $1.0 billion were recorded within “Long-term operating lease liabilities.”

Prior to the Amendments, we classified the leases associated with our Corporate Headquarters as finance leases because the present value of the sum of the lease payments exceeded substantially all of the fair value of our Corporate Headquarters at lease inception. As of December 31, 2023, our Corporate Headquarters were recorded as assets with net book values of $177.0 million within “Property and equipment, net” and long-term liabilities of $258.1 million within “Long-term finance lease liabilities.”

As of December 31, 2024 and 2023, the amounts recorded within “Other current liabilities” related to our Corporate Headquarters were not material to our condensed consolidated balance sheets.

Jeffrey Leiden Center for Cell and Genetic Therapies

In 2019, we entered into an agreement to lease approximately 269,000 square feet of office and laboratory space near our corporate headquarters in Boston, Massachusetts for a term of 16 years. Base rent payments commenced in 2021 and will continue through November 2036. We utilize the initial period as our lease term. We have an option to extend the lease term for up to two additional ten-year periods.

Embedded Leases with Contract Manufacturing Organizations

We have several embedded leases with contract manufacturing organizations related to the manufacturing and commercialization of our products, which are classified as operating leases and have remaining lease terms up to 8 years as of December 31, 2024.

Finance Leases

As of December 31, 2024, our finance leases primarily relate to our research site in San Diego and land related to a facility that we own.

San Diego Lease

In 2015, we entered into a lease agreement pursuant to which we lease approximately 170,000 square feet of office and laboratory space in San Diego, California for a term of 16 years (the “San Diego Lease”). Base rent payments commenced in 2019 and will continue through May 2034. We utilize this initial period as our lease term. We have an option to extend the lease term for up to two additional five-year terms. The San Diego Lease is classified as a finance lease because the present value of the sum of its lease payments exceeded substantially all of the fair value of the research site at lease inception.

Please refer to our accounting policy, Leases, in Note A, “Nature of Business and Accounting Policies,” for further information on the accounting treatment for our finance and operating leases.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Aggregate Lease Information

The components of lease cost recorded in our consolidated statements of income were as follows:

Year ended December 31,
202420232022
(in millions)
Operating lease cost$103.9$47.8$35.3
Finance lease cost
Amortization of leased assets30.942.751.0
Interest on lease liabilities25.238.843.5
Variable lease cost43.644.639.8
Sublease income(1.6)(2.7)(2.7)
Net lease cost$202.0$171.2$166.9

Our variable lease cost during 2024, 2023 and 2022 primarily related to operating expenses, taxes and insurance associated with our real estate leases.

Our leases are included on our consolidated balance sheets as follows:

As of December 31,
20242023
(in millions)
Operating leases
Operating lease assets$1,356.8$293.6
Total operating lease assets$1,356.8$293.6
Other current liabilities$87.1$33.1
Long-term operating lease liabilities1,544.4348.6
Total operating lease liabilities$1,631.5$381.7
Finance leases
Property and equipment, net$57.9$272.8
Total finance lease assets$57.9$272.8
Other current liabilities$5.2$50.6
Long-term finance lease liabilities112.8376.1
Total finance lease liabilities$118.0$426.7

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Maturities of our finance and operating lease liabilities as of December 31, 2024 were as follows:

YearOperating LeasesFinance LeasesTotal
(in millions)
2025$167.3$10.2$177.5
2026158.711.4170.1
2027157.911.8169.7
2028154.712.2166.9
2029102.812.5115.3
Thereafter1,997.8130.92,128.7
Total lease payments2,739.2189.02,928.2
Less: tenant allowance(199.2)—(199.2)
Less: amount representing interest(908.5)(71.0)(979.5)
Present value of lease liabilities$1,631.5$118.0$1,749.5

The weighted-average remaining lease terms and discount rates related to our leases were as follows:

As of December 31,
20242023
Weighted-average remaining lease term (in years)
Operating leases15.5811.24
Finance leases22.1710.06
Weighted-average discount rate
Operating leases4.61%2.42%
Finance leases4.58%8.20%

Supplemental cash flow information related to our leases was as follows:

Year ended December 31,
202420232022
(in millions)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases$113.5$62.8$50.8
Operating cash flows from finance leases$25.7$38.4$42.5
Financing cash flows from finance leases$33.6$44.9$85.5
Right-of-use assets obtained in exchange for lease obligations
Operating leases$1,120.9$2.4$58.6

The right-of-use assets of $1.1 billion that are included in the table above for 2024 were obtained in exchange for operating lease obligations of $1.3 billion, including $847.9 million of right-of-use operating lease assets and $1.0 billion of operating lease obligations related to the Amendments for our Corporate Headquarters. The Amendments also resulted in a reduction to our finance leases of $275.3 million and a net reduction to our property and equipment of $107.5 million.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

**M.**Common Stock, Preferred Stock and Equity Plans

Common Stock and Preferred Stock

We are authorized to issue 500.0 million shares of common stock. Holders of common stock are entitled to one vote per share. Holders of common stock are entitled to receive dividends, if and when declared by our Board of Directors, and to share ratably in our assets legally available for distribution to our shareholders in the event of liquidation. Holders of common stock have no preemptive, subscription, redemption or conversion rights. The holders of common stock do not have cumulative voting rights.

We are authorized to issue 1.0 million shares of preferred stock in one or more series and to fix the powers, designations, preferences and relative participating, option or other rights thereof, including dividend rights, conversion rights, voting rights, redemption terms, liquidation preferences and the number of shares constituting any series, without any further vote or action by our shareholders. As of December 31, 2024 and 2023, we had no shares of preferred stock issued or outstanding.

Share Repurchase Programs

In February 2023, our Board of Directors approved a share repurchase program, pursuant to which we are authorized to repurchase up to $3.0 billion of our common stock. This program does not have an expiration date and can be discontinued at any time. In 2024 and 2023, we repurchased 2.7 million and 1.3 million shares of our common stock, respectively, under this program for an aggregate of $1.2 billion and $427.6 million, respectively. As of December 31, 2024, we had $1.4 billion remaining authorization under this program.

Stock and Option Plans

The purpose of each of our stock and option plans is to attract, retain and motivate our employees, consultants and directors. Awards granted under these plans can be nonstatutory stock options (“NSOs”), incentive stock options (“ISOs”), RSUs including PSUs, restricted stock (“RSs”), or other equity-based awards, as specified in the individual plans.

Shares issued under all of our plans are funded through the issuance of new shares. The following table contains information about our equity plans:

As of December 31, 2024
Title of PlanGroup EligibleType of Award GrantedAwards OutstandingAdditional Awards Authorized for Grant
(in thousands)
2013 Stock and Option PlanEmployees, Non-employee Directors and ConsultantsNSO, RS, RSU and PSU5,13013,758
2006 Stock and Option PlanEmployees, Non-employee Directors and ConsultantsNSO, RS and RSU14—
Total5,14413,758

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Restricted Stock Units (excluding PSUs)

The following table summarizes our restricted stock unit activity during the year ended December 31, 2024:

Restricted Stock Units (excluding PSUs)
Number of SharesWeighted-average Grant-date Fair Value
(in thousands)(per share)
Unvested at December 31, 20232,962$287.41
Granted1,375$444.98
Vested(1,482)$271.97
Cancelled(167)$354.27
Unvested at December 31, 20242,688$372.54

The total fair value of restricted stock units that vested during 2024, 2023 and 2022 (measured based on the market price of our common stock on the date of vesting) was $666.0 million, $433.4 million and $372.5 million, respectively.

Performance-based RSUs (PSUs)

The potential range of shares issuable pursuant to our PSU awards range from 0% to 200% of the target shares based on financial and non-financial measures. For the majority of our PSU awards, 50% of PSUs that could be earned have a one-year performance period with the amount actually earned dependent upon our financial performance and with vesting of the earned shares in three equal installments over a three-year period. For these same PSU awards, the remaining 50% of PSUs that could be earned have approximately a three-year performance period with the amount earned dependent upon the achievement of multiple clinical development milestones and with the earned shares cliff vesting at the end of the performance period.

The following table summarizes our PSU activity during the year ended December 31, 2024:

Performance-Based RSU
Number of UnitsWeighted-average Grant-date Fair Value
(in thousands)(per share)
Unvested at December 31, 2023 (1)1,195$247.12
Granted (2)476$444.55
Vested(773)$231.64
Cancelled(36)$317.18
Unvested at December 31, 2024862$346.01
(1) “Unvested” represents our PSUs at target to the extent performance has not been certified plus the actual number of shares that continue to be subject to service conditions for which the performance has been achieved and certified.
(2) “Granted” represents (i) the target number of shares issuable for grants during 2024 and (ii) any change in the number of shares issuable pursuant to outstanding PSUs based on performance certification during 2024.

The total fair value of PSUs that vested during 2024, 2023 and 2022 (measured on the date of vesting) was $347.1 million, $160.4 million and $98.7 million, respectively.

Stock Options

All options granted under our 2013 Stock and Option Plan (“2013 Plan”) and 2006 Stock and Option Plan (“2006 Plan”) were granted with an exercise price equal to the fair value of the underlying common stock on the date of grant. As of December 31, 2024, we are only authorized to make new equity awards under our 2013 Plan. Under the 2013 Plan, no stock

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

options can be awarded with an exercise price less than the fair market value on the date of grant. All options awarded under our stock and option plans expire not more than 10 years from the grant date. In each of the three years ended December 31, 2024, we only granted stock options to certain of our non-employee directors.

The following table summarizes information related to the outstanding and exercisable options during the year ended December 31, 2024:

Stock OptionsWeighted-average Exercise PriceWeighted-average Remaining Contractual LifeAggregate Intrinsic Value
(in thousands)(per share)(in years)(in millions)
Outstanding at December 31, 20231,940$151.37
Granted14$399.71
Exercised(360)$139.07
Outstanding at December 31, 20241,594$156.363.21$392.6
Exercisable at December 31, 20241,594$156.363.21$392.6

The aggregate intrinsic value in the table above represents the total pre-tax amount, net of exercise price, that would have been received by option holders if all option holders had exercised all options with an exercise price lower than the market price on the last business day of 2024, which was $402.70 based on the closing price of our common stock on that date.

The total intrinsic value (the amount by which the fair market value exceeded the exercise price) of stock options exercised during 2024, 2023 and 2022 was $112.8 million, $128.4 million and $157.2 million, respectively. The total cash we received as a result of stock option exercises during 2024, 2023 and 2022 was $50.0 million, $80.8 million and $144.6 million, respectively.

The following table summarizes information about stock options outstanding as of December 31, 2024, which were all exercisable:

Options Outstanding and Exercisable
Range of Exercise PricesNumber OutstandingWeighted-average Remaining Contractual LifeWeighted-average Exercise Price
(in thousands)(in years)(per share)
$86.52–$100.003931.73$88.40
$100.01–$150.00871.00$124.37
$150.01–$200.001,0193.60$172.71
$200.01–$399.71957.14$290.47
Total1,5943.21$156.36

Employee Stock Purchase Plan

We have an employee stock purchase plan (the “ESPP”). The ESPP permits eligible employees to enroll in a twelve-month offering period comprising two six-month purchase periods. Participants may purchase shares of our common stock, through payroll deductions, at a price equal to 85% of the fair market value of the common stock on the first day of the applicable twelve-month offering period, or the last day of the applicable six-month purchase period, whichever is lower. Purchase dates under the ESPP occur on or about May 14 and November 14 of each year. As of December 31, 2024, there were 1.1 million shares of common stock authorized for issuance pursuant to the ESPP.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

In 2024, the following shares were issued to employees under the ESPP:

Year Ended December 31, 2024
Number of shares (in thousands)204
Average price paid per share$310.73

Employee Benefits

We have a 401(k) retirement plan (the “Vertex 401(k) Plan”) in which substantially all of our permanent U.S. employees are eligible to participate. Participants may contribute up to 60% of their annual compensation to the Vertex 401(k) Plan, subject to statutory limitations. We may declare discretionary matching contributions to the Vertex 401(k) Plan. We pay matching contributions in the form of cash. In ex-U.S. markets, we have similar benefit plans. In 2024, 2023 and 2022, we recorded approximately $52.3 million, $43.6 million and $36.4 million of expense related to these plans, respectively.

**N.**Stock-based Compensation Expense

We recognize share-based payments to employees as compensation expense using the fair value method. The fair value of restricted stock units, including PSUs, is based on the intrinsic value on the date of grant. The fair value of shares purchased pursuant to the ESPP and stock options is calculated using the Black-Scholes option pricing model. Stock-based compensation expense, measured at the grant date based on the fair value of the award, is typically recognized ratably over the requisite service period.

During the three years ended December 31, 2024, we recognized the following stock-based compensation expense:

Year ended December 31,
202420232022
(in millions)
Stock-based compensation expense by type of award:
Restricted stock units (including PSUs)$689.1$563.7$456.1
ESPP share issuances18.215.816.7
Stock options1.84.017.6
Stock-based compensation expense related to inventories(10.6)(2.3)0.9
Total stock-based compensation expense included in “Total costs and expenses”$698.5$581.2$491.3
Stock-based compensation expense by line item:
Cost of sales$7.5$7.5$9.4
Research and development expenses425.8354.9297.9
Selling, general and administrative expenses265.2218.8184.0
Total stock-based compensation expense included in “Total costs and expenses”698.5581.2491.3
Income tax effect(251.6)(167.5)(144.1)
Total stock-based compensation expense, net of tax$446.9$413.7$347.2

We capitalize a portion of our stock-based compensation expense to inventories, all of which is attributable to employees who support the manufacturing of our products.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

The following table sets forth our unrecognized stock-based compensation expense as of December 31, 2024, by type of award and the weighted-average period we expect to recognize the expense:

As of December 31, 2024
Unrecognized ExpenseWeighted-average Recognition Period
(in millions)(in years)
Type of award:
Restricted stock units (including PSUs)$716.61.93
ESPP share issuances11.90.62
Total unrecognized stock-based compensation expense$728.5

Restricted Stock Units and Performance-based Restricted Stock Units

We award restricted stock units with service conditions, which are generally the vesting periods of the awards.

As described in Note M, “Common Stock, Preferred Stock and Equity Plans,” we grant the majority of our PSUs to certain members of senior management. Our financial-based PSUs to senior management vest in three equal installments over a three-year period and are expensed ratably over that same period based upon an assessment of the likely level of achievement. Our non-financial based PSUs to senior management cliff vest at the end of approximately a three-year performance period and are expensed on a straight-line basis over that same period based upon an assessment of the likely level of achievement.

Employee Stock Purchase Plan

The weighted-average fair value of each purchase right granted during 2024, 2023 and 2022 was $117.89, $90.91 and $79.36, respectively. The following table reflects the weighted-average assumptions used in our Black-Scholes option pricing model:

Year ended December 31,
202420232022
Expected stock price volatility29.37%28.52%33.55%
Risk-free interest rate4.63%5.13%4.05%
Expected term (in years)0.730.710.71
Expected annual dividends———

Stock Options

We issued stock options to our non-employee directors with total grant date fair values of $2.0 million or less in each of the three years ended December 31, 2024.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

**O.**Income Taxes

We are subject to U.S. federal, state, and foreign income taxes. The components of income before provision for income taxes consisted of the following:

Year ended December 31,
202420232022
(in millions)
United States$(1,369.7)$3,089.1$3,257.0
Foreign1,618.21,290.7975.4
Income before provision for income taxes$248.5$4,379.8$4,232.4

The components of our provision for income taxes consisted of the following:

Year ended December 31,
202420232022
(in millions)
Current taxes:
Federal$704.9$900.4$779.0
State118.246.234.9
Foreign309.8350.1372.4
Total current taxes1,132.91,296.71,186.3
Deferred taxes:
Federal(438.7)(569.9)(404.0)
State(48.7)(21.9)(11.0)
Foreign138.655.3139.1
Total deferred taxes(348.8)(536.5)(275.9)
Provision for income taxes$784.1$760.2$910.4

Unremitted Earnings

As of December 31, 2024, we do not consider a portion of the earnings of our foreign subsidiaries to be indefinitely reinvested. Upon repatriation of the non-indefinitely invested earnings in the form of distributions or otherwise, we could be subject to immaterial U.S. federal withholding taxes payable to various foreign countries and income taxes in certain states. There are no material deferred taxes recorded on the excess of financial statement reporting over the tax basis of our investments in our foreign subsidiaries. Any permanently reinvested basis differences could reverse if we sell our foreign subsidiaries or various other events occur, none of which were considered probable as of December 31, 2024. The tax liabilities described above would not be material to our consolidated financial statements.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Effective Tax Rate Reconciliation

A reconciliation between the U.S. federal statutory rate of 21% and our effective tax rate was as follows:

Year ended December 31,
202420232022
Federal statutory tax rate21.0%21.0%21.0%
State taxes, net of federal benefit29.5%0.3%0.6%
Foreign income tax rate differential21.3%(0.6)%(0.3)%
U.S. tax on foreign earnings, net of credits(12.6)%0.7%1.9%
Foreign derived intangible income deduction(28.3)%(1.7)%(1.4)%
Tax credits(102.9)%(6.0)%(2.2)%
Stock compensation (benefit), shortfalls and cancellations(25.5)%(0.8)%(0.8)%
Uncertain tax positions11.3%3.4%2.7%
Non-deductible AIPR&D373.8%—%—%
Other27.9%1.1%0.0%
Effective tax rate315.5%17.4%21.5%

Our 315.5% effective tax rate for 2024 was materially different than the U.S. statutory rate primarily due to the $4.4 billion of non-deductible AIPR&D resulting from our acquisition of Alpine, which significantly lowered our pre-tax income. The non-deductible AIPR&D was partially offset by a benefit from a research and development tax credit study that was completed in 2024 and excess tax benefits related to stock-based compensation.

Our 17.4% effective tax rate for 2023 was lower than the U.S. statutory rate primarily due to a benefit from a research and development tax credit study that was completed in 2023 and excess tax benefits related to stock-based compensation, partially offset by changes in uncertain tax positions.

Our 21.5% effective tax rate for 2022 was higher than the U.S. statutory rate primarily due to an increase in our uncertain tax positions associated with intercompany transfer pricing matters offset by excess tax benefits related to stock-based compensation, tax credits and changes in our estimated prior-year tax liabilities.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Deferred Tax Assets and Liabilities

Deferred tax assets and liabilities are determined based on the difference between financial statement and tax bases using enacted tax rates in effect for the year in which the differences are expected to reverse. The components of the deferred taxes were as follows:

As of December 31,
20242023
(in millions)
Deferred tax assets:
Tax credit carryforwards$298.3$261.0
Intangible assets769.3799.2
Stock-based compensation164.2144.1
Finance lease liabilities25.992.1
Operating lease assets333.572.5
R&D capitalization1,404.1919.3
Other166.1146.6
Gross deferred tax assets3,161.42,434.8
Valuation allowance(272.9)(266.6)
Total deferred tax assets2,888.52,168.2
Deferred tax liabilities:
Property and equipment(110.8)(145.1)
Acquired intangibles(132.7)(130.2)
Operating lease liabilities(271.9)(55.6)
Other(42.0)(25.2)
Total deferred tax liabilities(557.4)(356.1)
Net deferred tax assets$2,331.1$1,812.1

On a periodic basis, we reassess the valuation allowance on our deferred income tax assets, weighing positive and negative evidence to assess the recoverability of our deferred tax assets. As of December 31, 2024, we maintained a valuation allowance of $272.9 million related primarily to U.S. state tax attributes.

In addition to deferred tax assets and liabilities, we have recorded deferred charges related to intra-entity sales of inventory. As of December 31, 2024 and 2023, the total deferred charges were $279.3 million and $185.8 million, respectively.

As of December 31, 2024, we had net operating loss (“NOL”) carryforwards of $152.3 million, which are subject to annual utilization limitations for U.S. federal income tax purposes. In 2027, our definite lived U.S. federal NOLs of $19.5 million will begin to expire, while the remaining portion may be carried forward indefinitely. For U.S. state income tax purposes, we had NOL carryforwards of $463.8 million and tax credit carryforwards of $380.1 million. The state NOL and tax credit carryforwards begin to expire in 2025. For foreign income tax purposes, we had NOL carryforwards of $40.2 million and tax credit carryforwards of $17.9 million. The foreign NOL carryforwards may be carried forward indefinitely, with the exception of $8.3 million that will expire in 2041. The foreign tax credit carryforwards will begin to expire in 2025.

F-44

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Unrecognized Tax Benefits

Unrecognized tax benefits were as follows:

Year ended December 31,
202420232022
(in millions)
Balance at beginning of the period$615.9$459.6$147.2
Increases related to current period tax positions119.2116.0128.3
Increases related to prior period tax positions4.662.5205.3
Decreases related to prior period tax positions(1.9)(14.4)(14.4)
Statute of limitations expiration(16.6)(8.1)(4.5)
Settlement with tax authorities(14.5)——
Foreign currency translation adjustment(0.5)0.3(2.3)
Balance at end of period$706.2$615.9$459.6

During 2024, we increased our gross unrecognized tax benefits by $90.3 million, primarily associated with intercompany transfer pricing matters. The unrecognized tax benefits were recorded as a $1.6 million increase to our gross deferred tax assets and a $91.9 million gross tax liability.

During 2023, we increased our gross unrecognized tax benefits by $156.3 million, primarily associated with intercompany transfer pricing matters. This unrecognized tax benefit was recorded as a $3.7 million increase to our gross deferred tax assets and a $160.0 million gross tax liability.

During 2022, we increased our gross unrecognized tax benefits by $312.4 million, primarily associated with intercompany transfer pricing matters. This unrecognized tax benefit was recorded as a $29.7 million reduction to our gross deferred tax assets and a $282.7 million gross tax liability.

As of December 31, 2024, we have classified $48.2 million, $22.3 million, and $635.7 million of our unrecognized tax benefits as credits to “Deferred tax assets,” “Accrued expenses” and “Other long-term liabilities,” respectively, on our consolidated balance sheet.

Included in our unrecognized tax benefits as of December 31, 2024, 2023 and 2022, we had $341.4 million, $288.7 million and $208.5 million (net of the federal benefit on state issues), respectively, of unrecognized tax benefits, which would affect our effective income tax rate if recognized.

We recognize potential interest and penalties related to unrecognized tax benefits in our provision for income taxes. In 2024, we recognized total net interest and penalty credits of $41.5 million to our interest and penalty expenses. In 2023 and 2022, we recognized total net interest and penalty expenses of $84.9 million, and $36.6 million, respectively. As of December 31, 2024 and 2023, our accrual for interest and penalties was $82.6 million and $124.1 million, respectively.

The U.S. Internal Revenue Service and other local and foreign tax authorities routinely examine our tax returns, including intercompany transfer pricing, and it is reasonably possible that we will adjust the value of our uncertain tax positions related these matters and other issues as we receive additional information from various taxing authorities, including reaching settlements with such authorities. In the case of intercompany transfer pricing, it is reasonably possible that taxing authorities do not agree with each other on the reallocation of income or the valuation of intellectual property, in which case we could be subject to double taxation, despite bilateral treaty agreements available to prevent this. In 2023, we came to settlement with the U.K.’s HM Revenue & Customs (“HMRC”) with respect to our tax positions for 2015 through 2020 and subsequently received Closure Notices for those periods in 2024. Due to the nature of the adjustments, we have asserted our rights under the U.S./U.K. Income Tax Convention pursuant to the mutual agreement procedures for the relief of double taxation for these matters.

F-45

VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

As a result of various audit closures, settlements and statutes of limitations, we estimate that it is reasonably possible that our gross unrecognized tax benefits could decrease by up to $74.3 million in the next 12 months due to statute of limitations expirations.

We file U.S. federal income tax returns and income tax returns in various state, local and foreign jurisdictions. We have various income tax audits ongoing at any time throughout the world. Except for jurisdictions where we have NOLs or tax credit carryforwards, we are no longer subject to any tax assessment from tax authorities for years prior to 2014 in jurisdictions that have a material impact on our consolidated financial statements.

In December 2022, E.U. member states reached an agreement to implement the minimum tax component (“Pillar Two”) of the Organization for Economic Co-operation and Development’s (the “OECD’s”), global international tax reform initiative with effective dates of January 1, 2024 and 2025. In July 2023, the OECD published Administrative Guidance proposing certain safe harbors that effectively extend certain effective dates to January 1, 2027. The assessment of our potential 2024 exposure for the global per-country minimum tax of 15%, based on our forecasted 2024 results, is immaterial to our condensed consolidated financial statements as the effective tax rates in most of the jurisdictions in which we operate are above 15%.

**P.**Commitments and Contingencies

2022 Credit Facility

In July 2022, Vertex and certain of its subsidiaries entered into a $500.0 million unsecured revolving facility (the “Credit Agreement”) with Bank of America, N.A., as administrative agent and the lenders referred to therein (the “Lenders”), which matures on July 1, 2027. The Credit Agreement was not drawn upon at closing and we have not drawn upon it to date. Amounts drawn pursuant to the Credit Agreement, if any, will be used for general corporate purposes. Subject to satisfaction of certain conditions, we may request that the borrowing capacity for the Credit Agreement be increased by an additional $500.0 million. Additionally, the Credit Agreement provides a sublimit of $100.0 million for letters of credit.

Any amounts borrowed under the Credit Agreement will bear interest, at our option, at either a base rate or a Secured Overnight Financing Rate (“SOFR”), in each case plus an applicable margin. Under the Credit Agreement, the applicable margins on base rate loans range from 0.000% to 0.500% and the applicable margins on SOFR loans range from 1.000% to 1.500%, in each case based on our consolidated leverage ratio (the ratio of our total consolidated funded indebtedness to our consolidated EBITDA for the most recently completed four fiscal quarter period).

Any amounts borrowed pursuant to the Credit Agreement are guaranteed by certain of our existing and future domestic subsidiaries, subject to certain exceptions.

The Credit Agreement contains customary representations and warranties and affirmative and negative covenants, including a financial covenant to maintain subject to certain limited exceptions, a consolidated leverage ratio of 3.50 to 1.00, subject to an increase to 4.00 to 1.00 following a material acquisition. As of December 31, 2024, we were in compliance with the covenants described above. The Credit Agreement also contains customary events of default. In the case of a continuing event of default, the administrative agent would be entitled to exercise various remedies, including the acceleration of amounts due under outstanding loans.

Direct costs related to the Credit Agreement are recorded over its term and were not material to our financial statements.

Guaranties and Indemnifications

As permitted under Massachusetts law, our Articles of Organization and By-laws provide that we will indemnify certain of our officers and directors for certain claims asserted against them in connection with their service as an officer or director. The maximum potential amount of future payments that we could be required to make under these indemnification provisions is unlimited. However, we have purchased directors’ and officers’ liability insurance policies that could reduce our monetary exposure and enable us to recover a portion of any future amounts paid. No indemnification claims currently are outstanding, and we believe the estimated fair value of these indemnification arrangements is minimal.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

We customarily agree in the ordinary course of our business to indemnification provisions in agreements with clinical trial investigators and sites in our product development programs, sponsored research agreements with academic and not-for-profit institutions, various comparable agreements involving parties performing services for us, and our real estate leases. We also customarily agree to certain indemnification provisions in our drug discovery, development and commercialization collaboration agreements. With respect to our clinical trials and sponsored research agreements, these indemnification provisions typically apply to any claim asserted against the investigator or the investigator’s institution relating to personal injury or property damage, violations of law or certain breaches of our contractual obligations arising out of the research or clinical testing of our compounds or product candidates. With respect to lease agreements, the indemnification provisions typically apply to claims asserted against the landlord relating to personal injury or property damage caused by us, to violations of law by us or to certain breaches of our contractual obligations. The indemnification provisions appearing in our collaboration agreements are similar to those for the other agreements discussed above, but in addition provide some limited indemnification for our collaborator in the event of third-party claims alleging infringement of intellectual property rights. In each of the cases above, the indemnification obligation generally survives the termination of the agreement for some extended period, although we believe the obligation typically has the most relevance during the contract term and for a short period of time thereafter. The maximum potential amount of future payments that we could be required to make under these provisions is generally unlimited. We have purchased insurance policies covering personal injury, property damage and general liability that reduce our exposure for indemnification and would enable us in many cases to recover all or a portion of any future amounts paid. We have never paid any material amounts to defend lawsuits or settle claims related to these indemnification provisions. Accordingly, we believe the estimated fair value of these indemnification arrangements is minimal.

Legal Matters

We are subject to claims and legal proceedings in the ordinary course of our business activities. If we determine that it is probable that future expenditures will be made for a particular matter and such expenditures can be reasonably estimated, we accrue a loss contingency based on our best estimate of the probable range of loss. We accrue the minimum amount within the probable range of loss if no amount within the range is more likely than another. If we determine that future expenditures are not probable, or probable but not reasonably estimated, we do not accrue a loss contingency. If we determine that a material loss is reasonably possible and the range of loss can be estimated, we disclose the possible range of loss. On a quarterly basis, we evaluate developments with these claims and legal proceedings that could result in a loss contingency accrual, or an increase or decrease to a previously accrued loss contingency. There were no material loss contingencies accrued as of December 31, 2024 or 2023.

Other Contingencies

We also have certain contingent liabilities that arise in the ordinary course of our business activities. We accrue for such contingent liabilities when it is probable that future expenditures will be made and such expenditures can be reasonably estimated. Other than our contingent consideration liabilities discussed in Note D, “Fair Value Measurements,” there were no material contingent liabilities accrued as of December 31, 2024 or 2023.

**Q.**Segment Information

Segment reporting is prepared on the same basis that our chief executive officer, who is our chief operating decision maker (“CODM”), manages the business, makes operating decisions and assesses performance. We operate in one segment, pharmaceuticals. We have selected net income (loss) as our reported measure of segment profit or loss because it is regularly provided to our CODM, allows our CODM to allocate resources because it encapsulates the results of our processes that generate revenues and expenses, and is important to the users of our financial statements. Enterprise-wide disclosures about revenues, significant customers, significant segment expenses, and property and equipment, net by location are presented below.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Revenues by Product

Product revenues, net consisted of the following:

Year ended December 31,
202420232022
(in millions)
TRIKAFTA/KAFTRIO$10,238.6$8,944.7$7,686.8
Other product revenues781.5924.51,243.9
Total product revenues, net$11,020.1$9,869.2$8,930.7

In 2024, "Other product revenues" included CASGEVY product revenues of $10.0 million.

Product Revenues by Geographic Location

Net product revenues are attributed to countries based on the location of the customer and consisted of the following:

Year ended December 31,
202420232022
(in millions)
United States$6,684.9$6,040.4$5,699.3
Outside of the United States
Europe3,453.93,109.02,705.5
Other881.3719.8525.9
Total product revenues outside of the United States4,335.23,828.83,231.4
Total product revenues, net$11,020.1$9,869.2$8,930.7

Significant Customers

Gross product revenues and accounts receivable from each of our customers who individually accounted for 10% or more of total gross product revenues and/or 10% or more of total accounts receivable consisted of the following:

Percent of Total Gross Product RevenuesPercent of Accounts Receivable
Year Ended December 31,As of December 31,
20242023202220242023
McKesson Corporation26%26%25%17%23%
Accredo Health Group, Inc.11%11%12%<10%<10%
Walgreen Co.<10%<10%10%<10%<10%
Lloyds Pharmacy*<10%<10%<10%13%10%
*A wholly owned subsidiary of McKesson Corporation in the U.K. until 2022.

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VERTEX PHARMACEUTICALS INCORPORATED

Notes to Consolidated Financial Statements (Continued)

Significant Segment Expenses

Significant segment expenses are set forth in the following table:

Year ended December 31,
202420232022
(in millions)
Product revenues, net$11,020.1$9,869.2$8,930.7
Costs and expenses:
Cost of sales - products516.3349.2260.5
Cost of sales - royalty1,014.2913.0819.8
Research expenses804.5705.6626.7
Development expenses2,825.82,457.31,913.6
Acquired in-process research and development expenses4,628.4527.1115.5
Selling and other commercial expenses838.5592.4468.9
General and administrative expenses625.8544.2475.8
Interest income(598.1)(614.7)(144.6)
Other Segment items (1)116.215.3162.1
Provision for income taxes784.1760.2910.4
Net (loss) income$(535.6)$3,619.6$3,322.0

(1)Other segment items included in “Net (loss) income” primarily include changes in the fair value of contingent consideration, interest expense and changes in the fair value of equity investments.

Long-lived Assets by Location

Long-lived assets by location consisted of the following:

As of December 31,
20242023
(in millions)
United States$2,392.4$1,359.7
Outside of the United States
United Kingdom176.677.3
Other15.615.9
Total long-lived assets outside of the United States192.293.2
Total long-lived assets$2,584.6$1,452.9

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