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STOCK TITAN

[Form 4] Black Stone Minerals, L.P. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Stuart Alexander D., a director of Black Stone Minerals, L.P. (BSM), reported a deemed gift transaction dated 08/15/2025 in which 20,200 common units were disposed of with $0 consideration (Code G). Following the reported disposition, Mr. Stuart retained 2,035,045 units held directly and substantial additional indirect holdings through multiple trusts and entities, including 1,251,634 units by RDS Investments, L.P. The Form 4 was signed by an attorney-in-fact on 08/18/2025. The filing documents the transfer as a gift and lists the detailed indirect ownership stakes.

Stuart Alexander D., amministratore di Black Stone Minerals, L.P. (BSM), ha dichiarato una transazione per donazione riconosciuta in data 15/08/2025 nella quale sono state trasferite 20.200 unità ordinarie senza corrispettivo ($0, Codice G). Dopo la disposizione segnalata, il Sig. Stuart ha mantenuto 2.035.045 unità detenute direttamente e rilevanti partecipazioni indirette tramite più trust ed entità, fra cui 1.251.634 unità tramite RDS Investments, L.P. La Form 4 è stata firmata per procura il 18/08/2025. Il deposito documenta la cessione come donazione e riporta le quote dettagliate di proprietà indiretta.

Stuart Alexander D., director de Black Stone Minerals, L.P. (BSM), informó una operación considerada como donación con fecha 15/08/2025 en la que se dispusieron 20.200 unidades comunes por $0 (Código G). Tras la disposición comunicada, el Sr. Stuart conservó 2.035.045 unidades en propiedad directa y mantuvo importantes participaciones indirectas a través de varios fideicomisos y entidades, incluyendo 1.251.634 unidades a través de RDS Investments, L.P. La Form 4 fue firmada por un apoderado el 18/08/2025. El expediente registra la transferencia como una donación y detalla las participaciones indirectas.

Stuart Alexander D.� Black Stone Minerals, L.P. (BSM)� 이사로서 2025-08-15자로 간주� 증여 거래� 신고했으�, � 과정에서 20,200 보통 유닛$0 대가� 처분� 것으� 표시되었습니�(코드 G). 신고� 처분 이후 Stuart 씨는 직접 보유 2,035,045 유닛� 계속 보유하고 있으� 다수� 신탁 � 법인� 통한 상당� 간접 보유� 유지하고 있는�, 그중 1,251,634 유닛은 RDS Investments, L.P. 명의입니�. Form 4� 대리인� 2025-08-18� 서명했습니다. 제출 서류� 해당 이전� 증여� 기재하고 간접 소유 지분을 상세� 명시하고 있습니다.

Stuart Alexander D., administrateur de Black Stone Minerals, L.P. (BSM), a déclaré une opération considérée comme un don datée du 15/08/2025, au cours de laquelle 20 200 unités ordinaires ont été transférées pour une contrepartie de $0 (Code G). À la suite de cette cession, M. Stuart a conservé 2 035 045 unités détenues directement ainsi que des participations indirectes substantielles via plusieurs trusts et entités, dont 1 251 634 unités détenues par RDS Investments, L.P. La Form 4 a été signée par un mandataire le 18/08/2025. Le dépôt de documents enregistre le transfert comme un don et indique les participations indirectes détaillées.

Stuart Alexander D., Direktor von Black Stone Minerals, L.P. (BSM), meldete eine als Schenkung angesehene Transaktion mit Datum 15.08.2025, bei der 20.200 Stammanteile ohne Gegenleistung ($0, Code G) veräußert wurden. Nach der gemeldeten Verfügung behielt Herr Stuart 2.035.045 direkt gehaltene Einheiten sowie erhebliche zusätzliche indirekte Beteiligungen über mehrere Trusts und Gesellschaften, darunter 1.251.634 Einheiten durch RDS Investments, L.P. Das Formular 4 wurde am 18.08.2025 von einem Bevollmächtigten unterzeichnet. Die Einreichung dokumentiert die Übertragung als Geschenk und führt die detaillierten indirekten Beteiligungsanteile auf.

Positive
  • Timely disclosure of insider transaction with specific transaction code and detailed indirect ownership
  • Transaction recorded as a gift (Code G), indicating no cash proceeds and likely non-economic transfer
Negative
  • Reduction of direct holdings by 20,200 common units, which modestly lowers the director's direct stake

Insights

TL;DR: A director reported a gift of 20,200 units; substantial remaining direct and indirect holdings remain.

The Form 4 shows a Code G disposition indicating a gift rather than a sale, so there is no cash proceeds reported. Director Alexander retains over two million units directly and material indirect holdings across trusts and entities, preserving control exposure. For governance review, the filing is routine disclosure of a non-economic transfer and appears compliant: transaction type and detailed ownership chains are provided.

TL;DR: Transaction is a non-cash gift of 20,200 units; ownership concentration remains concentrated in the reporting person and related entities.

The reported disposition reduces direct holdings modestly relative to the reported direct balance of 2,035,045 units. Indirect positions (e.g., RDS Investments, Topsfield Energy Ltd.) add significant additional exposure. Because the report records a gift at $0, there is no indication of market impact from a sale. Materiality is low given the size of the gift versus total reported holdings.

Stuart Alexander D., amministratore di Black Stone Minerals, L.P. (BSM), ha dichiarato una transazione per donazione riconosciuta in data 15/08/2025 nella quale sono state trasferite 20.200 unità ordinarie senza corrispettivo ($0, Codice G). Dopo la disposizione segnalata, il Sig. Stuart ha mantenuto 2.035.045 unità detenute direttamente e rilevanti partecipazioni indirette tramite più trust ed entità, fra cui 1.251.634 unità tramite RDS Investments, L.P. La Form 4 è stata firmata per procura il 18/08/2025. Il deposito documenta la cessione come donazione e riporta le quote dettagliate di proprietà indiretta.

Stuart Alexander D., director de Black Stone Minerals, L.P. (BSM), informó una operación considerada como donación con fecha 15/08/2025 en la que se dispusieron 20.200 unidades comunes por $0 (Código G). Tras la disposición comunicada, el Sr. Stuart conservó 2.035.045 unidades en propiedad directa y mantuvo importantes participaciones indirectas a través de varios fideicomisos y entidades, incluyendo 1.251.634 unidades a través de RDS Investments, L.P. La Form 4 fue firmada por un apoderado el 18/08/2025. El expediente registra la transferencia como una donación y detalla las participaciones indirectas.

Stuart Alexander D.� Black Stone Minerals, L.P. (BSM)� 이사로서 2025-08-15자로 간주� 증여 거래� 신고했으�, � 과정에서 20,200 보통 유닛$0 대가� 처분� 것으� 표시되었습니�(코드 G). 신고� 처분 이후 Stuart 씨는 직접 보유 2,035,045 유닛� 계속 보유하고 있으� 다수� 신탁 � 법인� 통한 상당� 간접 보유� 유지하고 있는�, 그중 1,251,634 유닛은 RDS Investments, L.P. 명의입니�. Form 4� 대리인� 2025-08-18� 서명했습니다. 제출 서류� 해당 이전� 증여� 기재하고 간접 소유 지분을 상세� 명시하고 있습니다.

Stuart Alexander D., administrateur de Black Stone Minerals, L.P. (BSM), a déclaré une opération considérée comme un don datée du 15/08/2025, au cours de laquelle 20 200 unités ordinaires ont été transférées pour une contrepartie de $0 (Code G). À la suite de cette cession, M. Stuart a conservé 2 035 045 unités détenues directement ainsi que des participations indirectes substantielles via plusieurs trusts et entités, dont 1 251 634 unités détenues par RDS Investments, L.P. La Form 4 a été signée par un mandataire le 18/08/2025. Le dépôt de documents enregistre le transfert comme un don et indique les participations indirectes détaillées.

Stuart Alexander D., Direktor von Black Stone Minerals, L.P. (BSM), meldete eine als Schenkung angesehene Transaktion mit Datum 15.08.2025, bei der 20.200 Stammanteile ohne Gegenleistung ($0, Code G) veräußert wurden. Nach der gemeldeten Verfügung behielt Herr Stuart 2.035.045 direkt gehaltene Einheiten sowie erhebliche zusätzliche indirekte Beteiligungen über mehrere Trusts und Gesellschaften, darunter 1.251.634 Einheiten durch RDS Investments, L.P. Das Formular 4 wurde am 18.08.2025 von einem Bevollmächtigten unterzeichnet. Die Einreichung dokumentiert die Übertragung als Geschenk und führt die detaillierten indirekten Beteiligungsanteile auf.

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*
Stuart Alexander D.

(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)
08/15/2025
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 units representing limited partner interests 08/15/2025 G 20,200 D $0 2,035,045 D
Common units representing limited partner interests 1,251,634 I By RDS Investments, L.P.
Common units representing limited partner interests 74,541 I By Alexander Douglas Stuart Primary Trust
Common units representing limited partner interests 74,541 I By Marian Stuart Pillsbury Primary Trust
Common units representing limited partner interests 159,901 I By UA R Douglas Stuart III Marital Trust
Common units representing limited partner interests 74,541 I By Robert D. Stuart III Primary Trust
Common units representing limited partner interests 74,541 I By James McClure Stuart Primary Trust
Common units representing limited partner interests 239,333 I By Marian S. Pillsbury Family 2012 GST Trust
Common units representing limited partner interests 286,976 I By Ann Peake Stuart 2011 Exempt Trust
Common units representing limited partner interests 180,775 I By Robert D. Stuart, Jr. 1996 Marital Trust
Common units representing limited partner interests 6,687 I By Barbara E Stuart GST Exempt Trust fbo Alexander D Stuart
Common units representing limited partner interests 2,112,711 I By Topsfield Energy Ltd.
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 Alexander D. Stuart 08/18/2025
** 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.

FAQ

What transaction did Stuart Alexander D. report on Form 4 for BSM?

He reported a Code G disposition dated 08/15/2025 of 20,200 common units (gift) with $0 consideration.

How many units does Alexander D. Stuart hold directly after the reported transaction?

The Form 4 shows 2,035,045 common units held directly following the reported disposition.

Does the filing show indirect holdings and through which entities?

Yes; significant indirect holdings are reported, including 1,251,634 units by RDS Investments, L.P. and 2,112,711 units by Topsfield Energy Ltd., among several trusts.

When was the Form 4 signed and by whom?

The filing was signed by Steve Putman, attorney-in-fact for Alexander D. Stuart on 08/18/2025.

Was the reported disposition a sale that generated proceeds?

No; the disposition is reported as a gift (Price $0), so no cash proceeds are shown.
Black Stone Minerals L P

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Oil & Gas E&P
Crude Petroleum & Natural Gas
United States
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