
Form 10-K (Mark One) ☑ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31, 2025Or☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period fromtoCommission file number 001-15925 COMMUNITY HEALTH SYSTEMS, INC.(Exact name of registrant as specified in its charter) Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. YES☐NO☑ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. YES☐NO☑ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 duringthe preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for thepast 90 days. YES☑NO☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 ofRegulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). YES☑NO☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or anemerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” inRule 12b-2 of the Exchange Act: Large accelerated filer☐Non-accelerated filer☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new orrevised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control overfinancial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its auditreport.☑ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filingreflect the correction of an error to previously issued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received byany of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). YES☐NO☑ The aggregate market value of the voting stock held by non-affiliates of the Registrant was $415,200,800. Market value is determined by reference to the closingprice on June 30, 2025 of the Registrant’s Common Stock as reported by the New York Stock Exchange. The Registrant does not (and did not at June 30, 2025) haveany non-voting common stock outstanding. As of February 13, 2026, there were 138,625,756 shares of common stock, par value $.01 per share, outstanding. DOCUMENTS INCORPORATED BY REFERENCE Certain information required for Part III of this annual report is incorporated by reference to portions of the Registrant’s definitive proxy statement for its 2026annual meeting of stockholders to be filed with the Securities and Exchange Commission within 120 days after the end of the Registrant’s fiscal year endedDecember 31, 2025. TABLE OF CONTENTSCOMMUNITY HEALTH SYSTEMS, INC.Year ended December 31, 2025 PART I Item 1.BusinessItem 1A.Risk FactorsItem 1B.Unresolved Staff CommentsItem 1C.CybersecurityItem 2.PropertiesItem 3.Legal ProceedingsItem 4.Mine Safety Disclosures PART II Item 5.Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities55Item 6.Reserved56Item 7.Management’s Discussion and Analysis of Financial Condition and Results of Operations57Item 7A.Quantitative and Qualitative Disclosures about Market Risk77Item 8.Financial Statements and Supplementary Data78Item 9.Changes in and Disagreements with Accountants on Accounting and Financial Disclosure126Item 9A.Controls and Procedures126Item 9B.Other Information126Item 9C.Disclosure Regarding Foreign Jurisdictions that Prevent Inspections126 PART III Item 10.Directors, Executive Officers and Corporate Governance129Item 11.Executive Compensation129Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters129Item 13.Certain Relationships and Related Transactions, and Director Independence129Item 14.Principal Accountant F