FORM 10-K ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2026OR☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from ____________ to ____________Commission File Number1-15240 Securities registered pursuant to Section12(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☐NoIndicate by check mark if the registrant is not required to file reports pursuant to Section13 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 Section13 or 15(d) of the Securities Exchange Act of 1934during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2)has been subject to such filingrequirements for the past 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 suchfiles).☒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 definition of “large accelerated filer,” “accelerated filer”, “smaller reporting company” and “emerging growth company”in Rule 12b-2 of the Exchange Act. (Check one): Large accelerated filer☒Accelerated filer☐Non-accelerated filer☐Smaller reportingcompany☐Emerginggrowthcompany☐ 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 newor revised 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 over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm thatprepared or issued its audit report.☒ 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 thefiling reflect 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 compensationreceived by any 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 Exchange Act).☐Yes☒No The aggregate market value of the registrant’s voting and non-voting common equity held by non-affiliates of the registrant at September 30, 2025 (thelast business day of the registrant’s second fiscal quarter) was approximately $11.1billion based on the closing price of the registrant’s common stock asreported on the New York Stock Exchange on such date. As of April 30, 2026, the registrant had 580,314,579 shares of common stock outstanding. DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant’s definitive proxy statement for its 2026 Annual General Meeting of shareholders to be filed with the Securities and ExchangeCommission within 120 days after the end of the fiscal year ended March 31, 2026 are incorporated by reference into Part III of this Annual Report onForm 10-K. TABLE OF CONTENTS PART I BusinessRisk FactorsUnresolved Staff CommentsCybersecurityPropertiesLegal ProceedingsMine Safety Disclosures Item 1.Item 1A.Item 1B.Item 1C.Item 2.Item 3.Item 4. PART IIItem 5. Market for Registrant’s Common Equity, Related Shareholder Matters and Issuer Purchases ofEquity SecuritiesReservedManagement’s Discussion and Analysis of Financial Condition and Results of OperationsQuantitative and Qualitative Disclosures About Market RiskFinancial Statements and Supplementary DataChanges in and Disagreements With Accountants on Accounting and Financial DisclosureControls and ProceduresOther InformationDisclosure Regarding Foreign Jurisdictions that Prevent Inspections Item 6.Item 7.Item 7A.Item 8.Item 9.Item 9A.Item 9B.Item 9C. PART IIIItem 10.Item 11.Item 12. Directors, Executive Officers and Corporate GovernanceExecutive CompensationSecurity Ownership of Certain Beneficial Owners and Management and Related StockholderMattersCertain Relationships and Related Transactions, and Director IndependencePrincipal Accountant Fees and Services PART IVItem 15.Item 16. Exhibits, Financial Statement SchedulesForm 10-K SummarySignatures FORWARD-LOOKING STATEMENTS This annual report