Black Stone Minerals (BSM) CFO reports tax withholding disposition of common units

Rhea-AI Filing Summary

Black Stone Minerals, L.P. senior vice president, chief financial officer, and treasurer Chris Bonner reported a small change in his ownership of company common units representing limited partner interests. On 01/07/2026, he disposed of 642 common units at a price of $13.38 per unit, coded as transaction type "F," which the filing explains represents tax withholding associated with the vesting of restricted common units issued pursuant to the LTIP. After this transaction, Bonner beneficially owned 6,938 common units directly.

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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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^*

Bonner Chris

(Last) (First) (Middle)

1001 FANNIN STREET, SUITE 2020

(Street)

HOUSTON TX 77002

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Black Stone Minerals, L.P. [ BSM ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, CFO, and Treasurer

3. Date of Earliest Transaction (Month/Day/Year)
01/07/2026

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 units representing limited partner interests	01/07/2026		F(1)		642	D	$13.38	6,938	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. Represents tax withholding associated with vesting of restricted common units issued pursuant to LTIP.

Remarks:

	/s/ Steve Putman, attorney-in-fact for Chris Bonner	01/09/2026
	** 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.

FAQ

What insider transaction did BSM executive Chris Bonner report on this Form 4?

Chris Bonner reported the disposal of 642 Black Stone Minerals common units representing limited partner interests on 01/07/2026, coded as transaction type "F."

What does the Form 4 footnote disclose about Chris Bonner’s BSM unit transaction?

The footnote states the transaction represents tax withholding associated with vesting of restricted common units issued pursuant to the LTIP.

How many BSM common units does Chris Bonner own after the reported transaction?

Following the reported transaction, Chris Bonner beneficially owned 6,938 Black Stone Minerals common units representing limited partner interests, held directly.

What role does Chris Bonner hold at Black Stone Minerals (BSM)?

Chris Bonner is identified as an officer of Black Stone Minerals with the title SVP, CFO, and Treasurer.

Was the reported BSM Form 4 filed by more than one reporting person?

No. The filing indicates it is a Form filed by one reporting person, referring to Chris Bonner.

Is the reported BSM insider transaction direct or indirect ownership?

The Form 4 shows the transaction as direct (D) ownership of the common units representing limited partner interests.