Item 16. FORM 10-K SUMMARY

None.

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SIGNATURES

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

LABORATORY CORPORATION OF AMERICA HOLDINGS

Registrant

						By:			/s/ ADAM H. SCHECHTER
									Adam H. Schechter
									President and Chief Executive Officer
Dated:			February 28, 2023

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Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report has been signed below by the following persons on behalf of the registrant on February 28, 2023 in the capacities indicated.

Signature						Title
/s/ ADAM H. SCHECHTER						President and Chief Executive Officer
Adam H. Schechter						(Principal Executive Officer)
/s/ GLENN A. EISENBERG						Executive Vice President, Chief Financial Officer
Glenn A. Eisenberg						(Principal Financial Officer)
/s/ PETER J. WILKINSON						Senior Vice President and Chief Accounting Officer
Peter J. Wilkinson						(Principal Accounting Officer)
*						Director
Kerrii B. Anderson
*						Director
Jean-Luc Bélingard
*						Director
Jeffrey A. Davis
*						Director
D. Gary Gilliland, M.D., Ph.D.
*						Director
Kirsten M. Kliphouse
*						Director
Garheng Kong, M.D., Ph.D.
*						Director
Peter M. Neupert
*						Director
Richelle Parham
*						Director
Kathryn E. Wengel
*						Director
R. Sanders Williams, M.D.

• Sandra van der Vaart, by her signing her name hereto, does hereby sign this Annual Report on behalf of the directors of the Registrant after whose typed names asterisks appear, pursuant to powers of attorney duly executed by such directors and filed with the Securities and Exchange Commission.

By:			/s/ Sandra van der Vaart
			Sandra van der Vaart
			Attorney-in-fact

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LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

									Page
Report of Independent Registered Public Accounting Firm Deloitte & Touche LLP			PCAOB ID No.			34			F-2
Report of Independent Registered Public Accounting Firm PricewaterhouseCoopers LLP			PCAOB ID No.			238			F-6
Consolidated Financial Statements:
Consolidated Balance Sheets									F-7
Consolidated Statements of Operations									F-8
Consolidated Statements of Comprehensive Earnings									F-9
Consolidated Statements of Changes in Shareholders' Equity									F-10
Consolidated Statements of Cash Flows									F-11
Notes to Consolidated Financial Statements									F-12

F-1

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and Board of Directors of Laboratory Corporation of America Holdings

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheet of Laboratory Corporation of America Holdings and subsidiaries (the “Company”) as of December 31, 2022 and 2021, the related consolidated statements of operations, comprehensive earnings, changes in shareholders’ equity, and cash flows for each of the two years in the period ended December 31, 2022, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2022, in conformity with accounting principles generally accepted in the United States of America.

We have also 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, 2022, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 28, 2023, expressed an unqualified opinion on the Company’s internal control over financial reporting.

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 critical audit matters does not alter in any way our opinion on the 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.

Revenue Recognition for Full-Service Clinical Trial Contracts— Refer to Note 2 to the financial statements

Critical Audit Matter Description

Within the Drug Development (DD) segment, the Company provides Phase I through Phase IV clinical development services to pharmaceutical, biotechnology, and medical device companies worldwide. A majority of the Company’s revenues are earned under contracts that are long term in nature, ranging in duration from a few months to many years. The majority of the Company's contracts contain a single performance obligation, as the Company provides a significant service of integrating all promises in the contract and the promises are highly interdependent and interrelated with one another.

Fixed-price contracts are typically recognized as revenue over time based on a proportional-performance basis, using either input or output methods that are specific to the service provided. When using an input method, revenue is recognized by dividing the actual costs incurred by the total estimated contract costs expected to complete the contract and multiplying that percentage by the total contract value. Contract costs principally include direct labor and reimbursable out-of-pocket costs. The estimate of total costs expected to complete the contract requires significant judgment and estimates are based on various

F-2

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assumptions of events that often span several years. These estimates are reviewed periodically, and any adjustments are recognized on a cumulative catch-up basis in the period they become known.

Given the judgments necessary to recognize revenue for fixed-price contracts that use an input method based on estimated total costs, auditing such estimates required extensive audit effort due to the complexity of these contracts and a high degree of auditor judgment when performing audit procedures and evaluating the results of those procedures.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to management’s estimates of costs for purposes of revenue recognition for full-service contracts which use an input method based on estimated total contract costs and included the following, among others:

• We tested the effectiveness of controls over fixed-price contract revenue, including those over the estimates of total contract costs related to the performance obligation.

• We selected a sample of long-term contracts and performed the following:

◦Evaluated whether the contracts were properly accounted for by management based on the terms and conditions of each contract, including whether over time revenue recognition was appropriate.

◦Compared the transaction prices to the consideration expected to be received based on current rights and obligations under the contracts and any contract modifications that were agreed upon with the customers.

◦Evaluated management’s identification of distinct performance obligations by assessing whether the underlying services were highly interdependent or highly interrelated.

◦Tested the accuracy and completeness of the total contract costs incurred to date for the performance obligation.

◦Evaluated the estimates of total contract cost for the performance obligation by:

–Comparing costs incurred to date to the costs management estimated to be incurred to date.

–Assessing management’s ability to achieve the estimates of total contract cost by performing corroborating inquiries with the Company’s project managers and project financial analysts and comparing the estimates to management’s work plans and cost estimates.

–Comparing management’s estimates for the selected contracts to historical experience and original budgets, when applicable.

◦Tested the mathematical accuracy of management’s calculation of revenue for the performance obligation.

• We evaluated management’s ability to accurately estimate total contract costs and revenue by comparing actual costs to management’s historical estimates for performance obligations that have been fulfilled.

Valuation of Labcorp Diagnostics Segment (Dx) Net Accounts Receivable— Refer to Note 2 to the financial statements

Critical Audit Matter Description

The Company recognizes Dx revenue and accounts receivable net of negotiated discounts and anticipated adjustments, including historical collection experience for each of its four payer portfolios (clients, patients, Medicare & Medicaid, and third party). Management has a formal process to estimate implicit price concessions for uncollectable accounts. Anticipated write-offs are recorded as adjustments to revenue at an amount considered necessary to record revenue at its net realizable value. In addition to negotiated contractual discounts, other adjustments including anticipated payer denials and other external factors that could affect the collectability of its receivables are considered when determining revenue and the net receivable amount.

Given the significant judgment and estimates necessary to determine the net realizable value of accounts receivable related to the Dx segment, auditing such estimates required extensive audit effort and a high degree of auditor judgment when performing audit procedures and evaluating the results of those procedures.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to Dx Net Accounts Receivable included the following, among others:

• We tested the effectiveness of controls over the valuation of net accounts receivable.

• We evaluated management’s methodology for recording Dx net accounts receivable by performing a retrospective comparison of actual cash collected to the prior year estimate of net accounts receivable.

• We developed an independent estimate of net accounts receivable by taking into consideration historical collections, write-offs, and other relevant internal and external factors.

F-3

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• We tested the completeness and accuracy of underlying historical data used as an input to management’s methodology and our independent estimate.

Goodwill- Reporting Unit within the DD Segment – Refer to Notes 1 and 7 to the consolidated financial statements

Critical Audit Matter Description

The Company assesses goodwill for impairment at least annually or whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. The Company recognizes an impairment charge for the amount by which a reporting unit's carrying amount exceeds its fair value. Fair value of a reporting unit is estimated using both market-based valuation and income-based valuation approaches. Management’s impairment assessments utilize significant judgments and assumptions related to the market multiples selected for the market-based valuation approach and the related estimates of cash flows arising from future revenues and profitability, terminal growth rates, and the discount rate used in the income-based valuation approach.

The Company performed an interim impairment assessment as of December 31, 2022, based on the loss in December 2022 of a supplier of critical testing supplies for the early development reporting unit in the Company’s DD segment. Based on the results of the interim impairment assessment, the Company concluded that fair value was less than carrying value for this reporting unit and recorded a goodwill impairment charge of $260 million for the DD segment.

We identified goodwill for the early development reporting unit as a critical audit matter due to the significant estimates and assumptions by management to estimate the fair value of the reporting unit. Performing audit procedures to evaluate management's estimate of fair value of the reporting unit required a high degree of auditor judgment and an increased extent of effort, including the need to involve our fair value specialists.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to the market multiples selected by management for the market-based valuation approach and management’s estimates related to the cash flows arising from future revenues and profitability, terminal growth rates, and the discount rate used in the income-based valuation approach included the following, among others:

• We tested the effectiveness of controls over management's goodwill impairment evaluation, including those over the determination of the fair value of the reporting unit, such as controls related to management's selection of market multiples, cash flows arising from future revenues and profitability, the terminal growth rate, and the discount rate.

• We evaluated the reasonableness of management’s forecasts by comparing the forecasts to (1) historical forecasts and the associated actual results, (2) internal communications to management, and (3) forecasted information included in analyst and industry reports for the Company and certain of its peer companies.

• With the assistance of our fair value specialists, we evaluated the reasonableness of the (1) valuation methodology, (2) the discount rate, and (3) market activity by:

◦Testing the source information underlying the determination of the discount rate and market multiples, including the mathematical accuracy of the calculations.

◦Developing a range of independent estimates and comparing those to the discount rate and market multiples selected by management.

/s/Deloitte & Touche LLP

Raleigh, North Carolina

February 28, 2023

We have served as the Company’s auditor since 2021.

F-4

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors of Laboratory Corporation of America Holdings

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of Laboratory Corporation of America Holdings and subsidiaries (the “Company”) as of December 31, 2022, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2022, based on criteria established in Internal Control – Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements as of and for the year ended December 31, 2022, of the Company and our report dated February 28, 2023, expressed an unqualified opinion on those financial statements.

Basis for Opinion

The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Report of Management on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit. 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 audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Deloitte & Touche LLP

Raleigh, North Carolina

February 28, 2023

F-5

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Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of Laboratory Corporation of America Holdings

Opinion on the Financial Statements

We have audited the consolidated statements of operations, comprehensive earnings, changes in shareholders' equity and cash flows of Laboratory Corporation of America Holdings and its subsidiaries (the “Company”) for the year ended December 31, 2020, including 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 results of operations and cash flows of the Company for the year ended December 31, 2020 in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (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 audit of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud.

Our audit included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audit provides a reasonable basis for our opinion.

/s/ PricewaterhouseCoopers LLP

Raleigh, North Carolina

February 25, 2021, except for the effects of the revision discussed in Note 1 (not presented herein) to the consolidated financial statements appearing under Item 8 of the Company’s 2021 annual report on Form 10-K, as to which the date is February 25, 2022, and except for the effects of the change in the segment performance measure discussed in Note 19, as to which the date is February 28, 2023

We served as the Company's auditor from 1997 to 2021.

F-6

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PART I – FINANCIAL INFORMATION