KINDER MORGAN, INC.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No. )

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Filed by a Party other than the Registrant☐

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☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☒ Definitive Proxy Statement

☐ Definitive Additional Materials

☐ Soliciting Material under §240.14a-12

Kinder Morgan, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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☐ Fee paid previously with preliminary materials.

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11.

April 2, 2026

Dear fellow stockholder:

You are cordially invited to attend our 2026 Annual Meeting of Stockholders to be held at our offices at 1001 Louisiana Street, Houston, Texas 77002 on Wednesday, May 13, 2026, at 10:00 a.m. Central time. The accompanying proxy statement describes the matters to be presented for approval at the meeting.

Representation of your shares at the meeting is very important. I urge you, whether or not you plan to attend the meeting, to vote promptly over the Internet or by telephone or by mailing a completed proxy card or voting instruction form. Instructions on how to vote are on page iii of the proxy summary.

Thank you for your continued support.

Sincerely,

Richard D. Kinder

Executive Chairman

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD ON MAY 13, 2026

To our stockholders:

The 2026 Annual Meeting of Stockholders will be held at our offices at 1001 Louisiana Street, Houston, Texas 77002 on Wednesday, May 13, 2026, at 10:00 a.m. Central time. At the meeting, the holders of our common stock will act on the following matters:

(1)the election of 11 nominated directors;

(2)the ratification of the selection of PricewaterhouseCoopers LLP as our independent registered public accounting firm for 2026; and

(3)an advisory vote on executive compensation.

These items of business are more fully described in the accompanying proxy statement.

In accordance with the “Notice and Access” rules adopted by the Securities and Exchange Commission (SEC), we have elected to provide our stockholders access to our proxy materials by posting such documents on the Internet. Accordingly, on April 2, 2026, an Important Notice Regarding the Availability of Proxy Materials (Notice) was mailed to the holders of our common stock as of the close of business on the record date. Beginning on April 2, 2026, stockholders have the ability to access the proxy materials on the website referred to in the Notice, or to request that a printed set of the proxy materials be sent to them, by following the instructions on the Notice.

Only holders of shares of our common stock as of the close of business on March 16, 2026, the record date, are entitled to receive notice of and to vote at the meeting. A list of all registered holders entitled to vote is on file at our principal offices at 1001 Louisiana Street, Houston, Texas 77002, and will be available for inspection by any stockholder of record for any purpose germane to the meeting during business hours for ten days prior to the meeting.

Even if you plan to attend the meeting in person, please cast your vote in advance as soon as possible using one of the methods described in the accompanying proxy statement. You may vote over the Internet or by telephone or by mailing a completed proxy card or voting instruction form, as applicable, all as described in the proxy statement. Any stockholder attending the meeting who presents appropriate documentation described in the proxy statement may revoke an earlier vote by proxy and vote at the annual meeting.

IF YOU PLAN TO ATTEND:

Please note that space constraints make it necessary to limit attendance to stockholders and proxy holders. Guests of stockholders or proxy holders will not be admitted. Admission to the meeting will be on a first-come, first-served basis. Registration will begin at 9:00 a.m. Central time, and seating will begin at 9:30 a.m. Central time. Stockholders will be asked to present valid picture identification, such as a driver’s license or passport. Stockholders holding stock in brokerage accounts will also need to bring a copy of the voting instruction form that they received from their broker, trustee or other nominee in connection with the meeting, or a copy of a brokerage statement reflecting stock ownership as of the record date. The use of cameras, recording devices and other electronic devices will not be permitted at the meeting.

By order of the Board of Directors,

Richard D. Kinder

Executive Chairman

April 2, 2026

Houston, Texas