SEC FORM 3

SEC FORM 3 SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Finland Joseph Peter

(Last)

(First)

(Middle)

500 WOODWARD AVE., SUITE 2900

(Street)

DETROIT

48226

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
09/17/2025

3. Issuer Name and Ticker or Trading Symbol
DT Midstream, Inc. [ DTM ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Accounting Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Restricted Stock Units	⁽¹⁾	⁽¹⁾	Common Stock	316.8922⁽²⁾	⁽³⁾	D
Restricted Stock Units	⁽⁴⁾	⁽⁴⁾	Common Stock	2,036.6646⁽²⁾	⁽³⁾	D
Restricted Stock Units	⁽⁵⁾	⁽⁵⁾	Common Stock	336.63⁽²⁾	⁽³⁾	D
Restricted Stock Units	⁽⁶⁾	⁽⁶⁾	Common Stock	179.9373⁽²⁾	⁽³⁾	D
Restricted Stock Units	⁽⁷⁾	⁽⁷⁾	Common Stock	772.6125⁽²⁾	⁽³⁾	D

Explanation of Responses:

1. Restricted stock units vest on February 1, 2026, subject to the Reporting Person's continued employment with the Issuer through the vesting date.

2. Includes associated dividend equivalents under the Issuer's long-term incentive plan.

3. 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.

4. Restricted stock units of which 965 vest on March 1, 2026 and 965 vest on March 1, 2027, together with associated dividend equivalents, subject to the Reporting Person's continued employment with the Issuer through the applicable vesting dates.

5. Restricted stock units vest on February 15, 2027, subject to the Reporting Person's continued employment with the Issuer through the vesting date.

6. Restricted stock units vest on February 25, 2028, subject to the Reporting Person's continued employment with the Issuer through the vesting date.

7. Restricted stock units vest on March 1, 2028, subject to the Reporting Person's continued employment with the Issuer through the vesting date.

Remarks:

Exhibit 24 (Power of Attorney)

	/s/ Andrew Hayner, Attorney-in-Fact	09/23/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

SEC Form 3 filed by new insider Finland Joseph Peter