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. )

☒	Filed by the Registrant

☐	Filed by a Party other than the Registrant

Check the appropriate box:

☐			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 Pursuant to §240.14a-12

DT MIDSTREAM, 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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DT Midstream, Inc.

500 Woodward Ave, Suite 2900

Detroit, Michigan 48226-1279

Dear Stockholder:

You are invited to attend the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of DT Midstream, Inc. (“DT Midstream”, the “Company”, “DTM”, “we” or “our”), which will be held on May 5, 2026 at 10:00 a.m., Eastern Time as a virtual meeting. You will be able to attend the meeting, vote and submit your questions via the Internet by visiting www.virtualshareholdermeeting.com/DTM2026 and entering the control number included on your proxy card. You will not be able to attend the virtual Annual Meeting in person.

We are proud of our achievements in 2025, which include:

•	Reaching a final investment decision on the Guardian Pipeline G3 expansion, which will increase Guardian’s capacity by approximately 40% and is supported by long-term negotiated rate precedent agreements with investment grade utility customers;

•	Achieving an investment grade credit rating with all three major credit rating agencies; and

•	Placing the Haynesville System (LEAP) Phase 4 expansion project into service.

Attached to this letter are a Notice of Annual Meeting of Stockholders and proxy statement, which describe the business to be conducted at the Annual Meeting.

YOUR VOTE IS IMPORTANT TO US. Whether you own a few shares or many, and whether or not you plan to attend the Annual Meeting, we urge you to promptly submit your vote via the Internet, telephone or mail.

On behalf of the Board of Directors and management, I would like to express our appreciation for your continued support.

Very truly yours,



David Slater Executive Chairman and Chief Executive Officer			Stephen Baker Lead Independent Director

March 26, 2026

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Notice of Annual Meeting of Stockholders of DT Midstream, Inc.


Date: May 5, 2026	Time: 10:00 a.m., Eastern Time	Place: Online at www.virtualshareholdermeeting.com /DTM2026

The Annual Meeting will be held as a virtual meeting via live webcast on the Internet. Because the meeting is completely virtual and being conducted via the Internet, stockholders will not be able to attend the meeting in person. You will be able to attend the Annual Meeting, vote and submit your questions on the day of the meeting via the Internet by visiting www.virtualshareholdermeeting.com/DTM2026 and entering the control number included on your proxy card.

Items of Business:


	•			To elect seven directors from the nominees described in the proxy statement;
	•			To ratify the appointment of PricewaterhouseCoopers LLP (“PwC”) as our independent registered public accounting firm for fiscal year ending December 31, 2026;
	•			To approve, on an advisory (non-binding) basis, the compensation of the Company’s Named Executive Officers;
	•			To vote on a stockholder proposal, if properly presented at the Annual Meeting; and
	•			To transact other business that may properly come before the Annual Meeting, or any adjournments or postponements thereof.

Record Date:

The Board of Directors set March 11, 2026 as the record date for the Annual Meeting (the “Record Date”). Only stockholders of record at the close of business on the Record Date are entitled to receive notice of, and to vote at, the Annual Meeting.

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Payment of Filing Fee (Check the appropriate box):

No fee required.

Fee paid previously with preliminary materials.

Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

SEC Form DEF 14A filed by DT Midstream Inc.