AM Form 4: Director adds 1,935 shares; holdings now 100,984

Rhea-AI Filing Summary

Antero Midstream (AM) insider transaction: Director John C. Mollenkopf acquired 1,935 shares of common stock at $0.00 per share on 10/10/2025. Following this transaction, he beneficially owns 100,984 shares, held directly. The filing was signed by Yvette K. Schultz as attorney-in-fact on 10/14/2025.

Insights

Corporate governance and insider activity analyst

Routine Form 4 showing a small, no-cost share acquisition.

The report discloses that Director John C. Mollenkopf acquired 1,935 Antero Midstream common shares at $0.00 on 10/10/2025, bringing his direct holdings to 100,984 shares. The zero price typically indicates a grant or award, though the form lists only the acquisition and resulting holdings.

This is an administrative disclosure under Section 16. The scale is modest and does not indicate a change in company operations or strategy. The form was executed via attorney-in-fact on 10/14/2025, consistent with standard reporting practices.

Insider Trade Summary

Net Buyer: 1,935 shares

Net Buy 1 txn

Insider MOLLENKOPF JOHN C

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common stock, par value $0.01 per share	1,935	$0.00	$0.00

Holdings After Transaction: Common stock, par value $0.01 per share — 100,984 shares (Direct)

FAQ

What insider transaction did AM report on Form 4?

Director John C. Mollenkopf acquired 1,935 shares of common stock at $0.00 per share on 10/10/2025.

How many AM shares does the director own after the transaction?

He beneficially owns 100,984 shares following the reported transaction, held directly.

What was the price per AM share in the transaction?

The reported price was $0.00 per share.

What is the relationship of the reporting person to AM?

The reporting person is a Director of Antero Midstream Corp.

Who signed the Form 4 and when?

It was signed by /s/ Yvette K. Schultz as attorney-in-fact for John C. Mollenkopf on 10/14/2025.

Was this filing made by one or multiple reporting persons?

The Form 4 was filed by one reporting person.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 10/14/2025 - 04:43 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

MOLLENKOPF JOHN C

(Last) (First) (Middle)

1615 WYNKOOP STREET

(Street)

DENVER CO 80202

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Antero Midstream Corp [ AM ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
10/10/2025

4. 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 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
Common stock, par value $0.01 per share	10/10/2025		A		1,935	A	$0.00	100,984	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

Explanation of Responses:

	/s/ Yvette K. Schultz, as attorney-in-fact for John C. Mollenkopf	10/14/2025
	** 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 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.