ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGEACT OF 1934 For the fiscal year endedDecember 31, 2025or TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934 For the transition period from _____________to_____________ Commission File Number 001-35081 A.Full title of the plan and the address of the plan, if different from that of the issuer named below: KINDER MORGAN SAVINGS PLAN B.Name of issuer of the securities held pursuant to the plan and the address of its principal executive office: Kinder Morgan, Inc.1001 Louisiana Street, Suite 1000 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Fiduciary Committee and Plan Participants ofKinder Morgan Savings Plan Opinion on the Financial Statements We have audited the accompanying statements of net assets available for benefits of Kinder Morgan Savings Plan (thePlan) as of December 31, 2025 and 2024, and the related statement of changes in net assets available for benefits for theyear ended December 31, 2025, and the related notes (collectively referred to as the financial statements). In our opinion,the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of Basis for Opinion These financial statements are the responsibility of Plan’s management (Management). Our responsibility is to express anopinion on the financial statements based on our audits. We are a public accounting firm registered with the PublicCompany Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan andperform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement,whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform, an audit of its internalcontrol over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over 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 Supplemental Schedule The supplemental information in the accompanying Schedule of Assets (Held at End of Year) as of December 31, 2025,has been subjected to audit procedures performed in conjunction with the audit of the financial statements. Thesupplemental schedule is the responsibility of Management. Our audit procedures included determining whether thesupplemental schedule reconciles to the financial statements or the underlying accounting and other records, as applicable, supplemental schedule, we evaluated whether the supplemental schedule, including its form and content, is presented inconformity with the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the EmployeeRetirement Income Security Act of 1974. In our opinion, the supplemental schedule is fairly stated, in all material /s/ McConnell & Jones LLP Houston, TexasJune 22, 2026 We have served as the Plan’s auditor since 2023. Kinder Morgan Savings PlanStatements of Net Assets Available for Benefits Kinder Morgan Savings PlanStatement of Changes in Net Assets Available for Benefits Year EndedDecember 31, 2025 1. DESCRIPTION OF THE PLAN General The following description of the Kinder Morgan Savings Plan (the Plan) provides only general information. Plan participants(Participants) should refer to the Plan document for a more complete description of the Plan’s provisions. The Plan is a defined contribution plan established in 1945 for the benefit of eligible employees of Kinder Morgan, Inc. (theCompany) and generally covers all full-time employees and part-time employees. Effective January 1, 2025, all employees weremoved from Kinder Morgan, Inc. to KMGP Services Company, Inc. Certain employee classifications and some employees covered by Plan Administration The Plan is administered by the Company’s Fiduciary Committee (Committee). Empower provides recordkeeping services for thePlan. The maintenance and custody of the Plan assets is administered by Empower Trust Company (the Trustee). Invesco Trust Contributions Participants may elect to make pre-tax or after-tax Roth contributions from 1% to 50% of their eligible annual compensation, limitedby requirements of the Internal Revenue Code (IRC). Participants may discontinue their election to contribute at any time. Participantsare automatically enrolled in the Plan with a pre-tax contribution rate of 6% of their eligible compensation unless they opt out or make Every February, Participants who have not opted out of automatic escalation wil