David Slater - 20 Feb 2026 Form 4 Insider Report for DT Midstream, Inc. (DTM)

Role: Exec. Chair and CEO
Signature: /s/ Andrew Hayner, Attorney-in-Fact
Issuer symbol: DTM
Transactions as of: 20 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 24 Feb 2026, 16:32:45 UTC
Previous filing: 19 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Slater David	Exec. Chair and CEO	500 WOODWARD AVE., SUITE 2900, DETROIT	/s/ Andrew Hayner, Attorney-in-Fact	24 Feb 2026	0001724472

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	DTM	Restricted Stock Units	Award	$0	+16,285		$0.000000	16,285	20 Feb 2026	Common stock	16,285		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock with any fractional shares being paid in cash.
F2	This restricted stock unit will vest on February 20, 2029, subject to the Reporting Person's continued service with the Issuer through the applicable vesting date and provides for associated dividend equivalents under the Issuer's long-term incentive plan.