Antero Midstream (NYSE: AM) director Klimley reports sale of 5,000 shares

Rhea-AI Filing Summary

Antero Midstream Corp director Brooks J. Klimley reported selling 5,000 shares of common stock on 12/16/2025.

The shares were sold at a weighted average price of $17.59, with individual sale prices ranging from $17.57 to $17.61. After this transaction, he beneficially owns 72,622 Antero Midstream common shares in direct ownership.

Insider Trade Summary

Net Seller: 5,000 shares

Net Sell 1 txn

Insider KLIMLEY BROOKS J

Role Director

Sold 5,000 shs ($88K)

Type	Security	Shares	Price	Value
Sale	Common stock, par value $0.01 per share	5,000	$17.59	$88K

Holdings After Transaction: Common stock, par value $0.01 per share — 72,622 shares (Direct)

Footnotes (1)

1. F1. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.57 to $17.61, inclusive. The reporting person undertakes to provide Antero Midstream Corporation (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1).

FAQ

What insider transaction did Antero Midstream (AM) report in this filing?

The filing reports that director Brooks J. Klimley sold 5,000 shares of Antero Midstream common stock on 12/16/2025.

Who is the Antero Midstream (AM) insider involved in the recent share sale?

The insider is Brooks J. Klimley, who is identified in the filing as a director of Antero Midstream Corp.

How many Antero Midstream (AM) shares were sold and at what price?

The director sold 5,000 common shares at a weighted average price of $17.59 per share, with sale prices ranging from $17.57 to $17.61.

How many Antero Midstream (AM) shares does the director own after the sale?

Following the reported transaction, the director beneficially owns 72,622 Antero Midstream common shares in direct ownership.

What type of security was involved in the Antero Midstream (AM) insider transaction?

The transaction involved Antero Midstream Corp common stock, par value $0.01 per share.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 12/16/2025 - 07:12 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).

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^*

KLIMLEY BROOKS J

(Last) (First) (Middle)

9 SHERMAN AVENUE

(Street)

BRONXVILLE NY 10708

(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)
12/16/2025

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	12/16/2025		S		5,000	D	$17.59(1)	72,622	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:

1. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.57 to $17.61, inclusive. The reporting person undertakes to provide Antero Midstream Corporation (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1).

	/s/ Yvette K. Schultz, as attorney-in-fact for Brooks J. Klimley	12/16/2025
	** 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.