Black Stone Minerals (BSM) director reports 14,255-unit insider acquisition

Rhea-AI Filing Summary

Black Stone Minerals, L.P. director William E. Randall reported acquiring 14,255 common units representing limited partner interests on January 13, 2026. The units were acquired at a reported price of $0 per unit, which is typical for equity-based awards to insiders. Following this transaction, Randall directly beneficially owns 190,286 common units of Black Stone Minerals, L.P.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Randall William E.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common units representing limited partner interests	14,255	$0.00	--

Holdings After Transaction: Common units representing limited partner interests — 190,286 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

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^*

Randall William E.

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
01/13/2026

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	01/13/2026		A		14,255	A	$0	190,286	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:

Remarks:

	/s/ Steve Putman, attorney-in-fact for William E. Randall	01/15/2026
	** 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 director William E. Randall report?

Director William E. Randall reported acquiring 14,255 common units representing limited partner interests of Black Stone Minerals, L.P. (BSM) on January 13, 2026.

At what price were the Black Stone Minerals (BSM) units acquired in this Form 4?

The 14,255 common units were reported as acquired at a price of $0 per unit.

How many Black Stone Minerals (BSM) units does William E. Randall own after this transaction?

After the reported transaction, William E. Randall beneficially owns 190,286 common units of Black Stone Minerals, L.P.

Is the ownership reported by William E. Randall in BSM direct or indirect?

The Form 4 indicates direct (D) ownership for the 190,286 common units following the transaction.

What is William E. Randall’s relationship to Black Stone Minerals, L.P. (BSM)?

William E. Randall is reported as a director of Black Stone Minerals, L.P. and is not listed as an officer or 10% owner in this filing.

What type of security was involved in this BSM insider transaction?

The security involved was common units representing limited partner interests of Black Stone Minerals, L.P.