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

Role: E.V.P., Chief Admin. Off.
Signature: /s/ Andrew Hayner, Attorney-in-Fact
Issuer symbol: DTM
Transactions as of: 11 Aug 2025
Net transactions value: -$496,755
Form type: 4
Filing time: 12 Aug 2025, 17:01:15 UTC
Previous filing: 04 Aug 2025
Next filing: 30 Jan 2026
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	12 Aug 2025	0001928974

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DTM	Common Stock	Sale	$496,755	-4,755	-48%	$104.47	5,171	11 Aug 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.