Melissa Cox - Aug 11, 2025 Form 4 Insider Report for DT Midstream, Inc. (DTM)

Role: E.V.P., Chief Admin. Off.
Signature: /s/ Andrew Hayner, Attorney-in-Fact
Stock symbol: DTM
Transactions as of: Aug 11, 2025
Transactions value $: -$496,755
Form type: 4
Date filed: 8/12/2025, 05:01 PM
Previous filing: Aug 4, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Cox Melissa	E.V.P., Chief Admin. Off.	500 WOODWARD AVE., SUITE 2900, DETROIT	/s/ Andrew Hayner, Attorney-in-Fact	2025-08-12	0001928974

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DTM	Common Stock	Sale	-$497K	-4.76K	-47.9%	$104.47	5.17K	Aug 11, 2025	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $104.42 to $104.52, inclusive. The reporting person undertakes to provide to DT Midstream, Inc., any security holder of DT Midstream, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Content

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $104.42 to $104.52, inclusive. The reporting person undertakes to provide to DT Midstream, Inc., any security holder of DT Midstream, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.