DT Midstream, Inc. — Director's Dealing 2021

Aug 3, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DT Midstream, Inc. (DTM)
CIK: 0001842022
Period of Report: 2021-07-01

Reporting Person: Ellis Wendy (E.V.P., Gen Counsel & Corp Sec)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-07-01	Restricted Stock Units	$	A	1651.15	Acquired		Common Stock (1651.15)	Direct
2021-07-01	Restricted Stock Units	$	A	1320.92	Acquired		Common Stock (1320.92)	Direct
2021-07-01	Restricted Stock Units	$	A	1651.15	Acquired		Common Stock (1651.15)	Direct
2021-08-02	Restricted Stock Units	$	A	24167	Acquired		Common Stock (24167)	Direct

Footnotes

F1: Pursuant to the Employee Matters Agreement dated as of June 25, 2021 between DTE Energy Company and the Issuer, the Reporting Person received restricted stock units of the Issuer to replace restricted stock and restricted stock units held by the Reporting Person immediately before the legal and structural separation of the Issuer from DTE Energy Company (the "Spin-off") that were granted to the Reporting Person pursuant to an equity plan of DTE Energy Company and were forfeited in connection with the Spin-off.

F2: 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.

F3: This restricted stock unit will vest on January 30, 2022, subject to the Reporting Persons' continued employment with the Issuer through the applicable vesting date.

F4: This restricted stock unit will vest on January 29, 2023, subject to the Reporting Persons' continued employment with the Issuer through the applicable vesting date.

F5: This restricted stock unit will vest on January 27, 2024, subject to the Reporting Persons' continued employment with the Issuer through the applicable vesting date.

F6: This restricted stock unit will vest 25% on August 2, 2023, 25% on August 2, 2024 and 50% on August 2, 2025, subject to the Reporting Persons' continued employment with the Issuer through the applicable vesting date.