Michael Scott Bast - Sep 26, 2025 Form 3 Insider Report for Hess Midstream LP (HESM)

Role: President and COO
Signature: Barry Schachter for Michael Scott Bast
Stock symbol: HESM
Transactions as of: Sep 26, 2025
Transactions value $: $0
Form type: 3
Date filed: 9/26/2025, 04:42 PM
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Bast Michael Scott	President and COO	1501 MCKINNEY STREET, HOUSTON	Barry Schachter for Michael Scott Bast	2025-09-26	0002084199

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	HESM	Class A Shares						800	Sep 26, 2025	Direct

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
holding	HESM	2023 Phantom Shares							Sep 26, 2025	Class A Shares	1.33K		Direct	F1
holding	HESM	2024 Phantom Shares							Sep 26, 2025	Class A Shares	2.38K		Direct	F2
holding	HESM	2025 Phantom Shares							Sep 26, 2025	Class A Shares	2.79K		Direct	F3

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

Explanation of Responses:

Id	Content
F1	Each phantom share is the economic equivalent of one Class A Share. The 2023 phantom shares vest on March 8, 2026 and have no expiration date.
F2	Each phantom share is the economic equivalent of one Class A Share. The 2024 phantom shares vest ratably on March 8, 2026 and March 8, 2027 and have no expiration date.
F3	Each phantom share is the economic equivalent of one Class A Share. The 2025 phantom shares vest in three equal installments beginning on March 8, 2026 and have no expiration date.