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Black Stone Minerals (BSM) director receives 1,342-unit equity grant in lieu of cash

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Hamman Anne Lenoir reported acquisition or exercise transactions in this Form 4 filing.

Black Stone Minerals director Anne Lenoir Hamman received an equity grant of 1,342 common units representing limited partner interests at $13.97 per unit. This grant reflects a prior election to receive common units instead of a cash retainer for service on the board of the partnership’s general partner.

Following the grant, she holds 8,428 common units directly. A separate line shows 502,703 common units held indirectly through a family limited partnership, for which she disclaims beneficial ownership beyond her pecuniary interest.

Positive

  • None.

Negative

  • None.
Insider Hamman Anne Lenoir
Role null
Type Security Shares Price Value
Grant/Award Common units representing limited partner interests 1,342 $13.97 $19K
holding Common units representing limited partner interests -- -- --
Holdings After Transaction: Common units representing limited partner interests — 8,428 shares (Direct, null); Common units representing limited partner interests — 502,703 shares (Indirect, By family limited partnership)
Footnotes (1)
  1. Pursuant to a previous arrangement, the Reporting Person elected to receive common units in lieu of a cash retainer for service on the Board of Directors of the Partnership's General Partner. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.
Equity grant size 1,342 units Grant/award acquisition for board service
Grant price per unit $13.97 per unit Common units representing limited partner interests
Direct holdings after grant 8,428 units Common units held directly after transaction
Indirect holdings via family limited partnership 502,703 units Common units held indirectly; beneficial ownership disclaimed beyond pecuniary interest
grant/award acquisition financial
"transaction_action: "grant/award acquisition" for the 1,342-unit entry"
family limited partnership financial
"nature_of_ownership: "By family limited partnership" for 502,703 units"
beneficial ownership financial
"The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
common units representing limited partner interests financial
"security_title: "Common units representing limited partner interests""
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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*
Hamman Anne Lenoir
(Last)(First)(Middle)
1001 FANNIN STREET, SUITE 2020
(Street)
HOUSTON TEXAS 77002
(City)(State)(Zip)
UNITED STATES
(Country)		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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/02/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common units representing limited partner interests07/02/2026A1,342A(1)$13.978,428D
Common units representing limited partner interests502,703(2)IBy family limited partnership
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Pursuant to a previous arrangement, the Reporting Person elected to receive common units in lieu of a cash retainer for service on the Board of Directors of the Partnership's General Partner.
2. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.
Remarks:
/s/ Steve Putman, attorney-in-fact for Anne Hamman07/02/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Black Stone Minerals (BSM) report for Anne Lenoir Hamman?

Black Stone Minerals reported that director Anne Lenoir Hamman received a grant of 1,342 common units at $13.97 per unit. The units were issued as compensation for board service instead of a cash retainer under a previously arranged election.

How many Black Stone Minerals (BSM) units does Anne Lenoir Hamman now hold directly?

After the reported grant, Anne Lenoir Hamman directly holds 8,428 common units representing limited partner interests. This figure reflects her direct ownership position following the 1,342-unit equity award received for service on the board.

What is the nature of Anne Lenoir Hamman’s indirect holdings in Black Stone Minerals (BSM)?

The filing shows 502,703 common units held indirectly through a family limited partnership. Hamman disclaims beneficial ownership of these securities except to the extent of her pecuniary interest, meaning her economic stake is limited to her share in that entity.

How were the newly granted Black Stone Minerals (BSM) units delivered to Anne Lenoir Hamman?

The new units were delivered under a previous arrangement where Anne Lenoir Hamman elected to receive common units instead of a cash retainer. This election applies to compensation for her service on the board of the partnership’s general partner.

Does the Black Stone Minerals (BSM) Form 4 describe a market purchase or sale by Anne Lenoir Hamman?

The Form 4 describes a grant or award acquisition of 1,342 common units at $13.97 per unit, not an open-market trade. The additional large position is reported as indirect holdings through a family limited partnership, with a beneficial ownership disclaimer.