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SEC FORM 4 SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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checkbox unchecked Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
checkbox unchecked Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
NIEMIEC DAVID W
(Last) (First) (Middle)
1400 SMITH STREET
(Street)
HOUSTON TX 77002
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Hess Midstream LP [ HESM ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
checkbox checked Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
03/08/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
checkbox checked Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class A Shares 03/08/2026 M(1) 1,612 A $0 50,527 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
2025 Phantom Shares $0 03/08/2026 M 1,612 (2) (2) Class A Shares 1,612 $0 0 D
2026 Phantom Shares (3) 03/08/2026 A 1,656 (4) (4) Class A Shares 1,656 $0 1,656 D
Explanation of Responses:
1. Class A shares acquired upon settlement of phantom shares granted in 2025 for service as director. Each phantom share is the economic equivalent of one Class A share.
2. The 2025 phantom shares vested on March 8, 2026.
3. Each phantom share is the economic equivalent of one Class A share.
4. The phantom shares will vest on March 8, 2027 and have no expiration date.
Remarks:
Exhibit List: Exhibit 24 - Power of Attorney
/s/ Jessica Cauley, Attorney-in-Fact for David W. Niemiec 03/10/2026
** 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 4 (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.
EX-24.2025POANiemiec

 

POWER OF ATTORNEY

 

The undersigned hereby constitutes and appoints each of MARY A FRANCIS, CHRISTOPHER A. BUTNER, CHRISTINE L. CAVALLO, KARI H. ENDRIES, ROSE Z. PIERSON, CARRIE HO, and JESSICA CAULEY signing singly, the undersigned’s true and lawful attorney-in-fact to:

 

1.
Obtain credentials (including codes or passwords) to enable the undersigned, in the undersigned’s capacity as an officer and/or director of Hess Midstream LP, a Delaware limited partnership (the “Company”), to submit and file documents, forms and information via the U.S. Securities and Exchange Commission (“SEC”) Electronic Data Gathering, Analysis, and Retrieval (“EDGAR”) system, including enrolling the undersigned in EDGAR Next or any successor filing system;

 

2.
Do and perform any and all acts for and on behalf of the undersigned which may be necessary to serve as an account administrator for the undersigned’s EDGAR account, including (i) appoint, remove and replace account administrators, account users, and delegated entities; (ii) maintain the security of the undersigned’s EDGAR account, including modification of access codes; (iii) maintain, modify and certify the accuracy of information on the undersigned’s EDGAR account dashboard; and (iv) any other actions contemplated by Rule 10 of Regulation S-T;

 

3.
Cause the Company to accept a delegation of authority from the undersigned’s EDGAR account administrators and authorize the Company’s EDGAR account administrators pursuant to that delegated entity designation to appoint, remove or replace users for the undersigned’s EDGAR account;

 

4.
Execute for and on behalf of the undersigned a Form ID, Forms 3, 4 and 5, and Forms 144, each including amendments thereto, required to be filed in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules thereunder and Rule 144 under the Securities Act of 1933, as amended (“Rule 144”), respectively;

 

5.
Do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form ID, Form 3, 4 or 5, or Form 144, complete and execute any amendment or amendments thereto, and timely file such form with the SEC and any stock exchange or similar authority; and

 

6.
Take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact’s discretion.

 

The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the

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foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company or any person appointed under Section 2 or 3 above assuming, any of the undersigned's responsibilities to comply with Section 16 of the Exchange Act or Rule 144.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file a Form ID, Forms 3, 4 and 5 or Form 144 with respect to the undersigned’s holdings of and transactions in securities issued by the Company, unless earlier superseded by a new power of attorney regarding the purposes outlined herein or revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

 

IN WITNESS WHEREOF, the undersigned has hereunto set his or her hand this 31st day of October 2025.

 

 

 

/s/ David W. Niemiec

David W. Niemiec

 

 

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