Black Stone Minerals L P SEC Filings

William E. Randall, a director of Black Stone Minerals, L.P. (BSM), received 1,426 common units on 10/03/2025 at a price of $13.14 per unit, bringing his total beneficial ownership to 174,494 common units. The units were issued because he elected to receive common units in lieu of a cash retainer for board service. The transaction was reported on Form 4 and signed by an attorney-in-fact on 10/07/2025. This is a routine director compensation election and does not disclose any derivative transactions or other changes to previously reported holdings.

Insider purchase increases board member stake in Black Stone Minerals. Director Jerry V. Kyle Jr. received 1,426 common units as compensation in lieu of a cash retainer, executed on 10/03/2025 at an indicated price of $13.14 per unit. After the transaction his reported beneficial ownership totals 304,242 common units directly, plus additional indirect holdings of 250,088 units (held by the Kyle 1968 Trust), 4,000 units (family limited partnership), and 350,182 units (Lena C A Kyle Trust).

The filing is routine Section 16 reporting: the acquisition was made under a prior arrangement to receive units instead of cash for board service. The form was signed by an attorney-in-fact on 10/07/2025. No derivative transactions or sales are reported.

Director William N. Mathis reported a non-derivative acquisition of 2,378 common units of Black Stone Minerals, L.P. (BSM) on 10/03/2025 at a price of $13.14 per unit, increasing his direct holdings to 246,200 units. The Form 4 shows multiple indirect holdings tied to family trusts and affiliated entities, the largest being 842,637 units held by WM Capital Partners, L.P., and other indirect holdings ranging from 10,436 to 324,763 units. The filing states the acquisition resulted from electing to receive common units in lieu of a cash board retainer for service as a director.

Stuart Alexander D., a director of Black Stone Minerals, L.P. (BSM), reported acquiring 1,712 common units on 10/03/2025 by electing to receive units instead of a cash board retainer. The reported per‑unit price for that election was $13.14. After the reported transaction, the filing shows 2,036,757 common units beneficially owned in total, with the majority held indirectly through a series of trusts and entities (including RDS Investments, L.P. and Topsfield Energy Ltd.). The filing is signed by an attorney‑in‑fact on behalf of the reporting person on 10/07/2025.

Insider purchases increased both direct and indirect stakes in Black Stone Minerals (BSM). Thomas L. Carter Jr., who serves as CEO, President and Chairman and is also a director, reported three open‑market purchases executed on 09/08/2025, 09/09/2025 and 09/10/2025 totaling 25,370 common units at weighted average prices in ranges of $11.88–$11.91, $12.04–$12.10 and $12.22–$12.38, respectively. Following the reported transactions the filing shows 3,497,401 common units beneficially owned directly by the reporting person. The Form 4 also discloses significant indirect holdings through trusts and entities, including 11,481,503 units held by Carter2221, Ltd., and multiple 1995 trusts and spouse holdings. The filing is a routine Section 16 disclosure of insider purchases and beneficial ownership.

Thomas L. Carter Jr., CEO, President and Chairman of Black Stone Minerals, L.P. (BSM), reported insider purchases on 08/19/2025 and 08/20/2025. He acquired 20,000 common units on 08/19/2025 at a weighted-average price of $11.9665, bringing his direct holdings to 3,451,031 units. He acquired 21,000 common units on 08/20/2025 at a weighted-average price of $12.0295, increasing direct holdings to 3,472,031 units. The filing also lists substantial indirect beneficial ownership through several trusts, spouse, and Carter2221, Ltd., totaling over 11 million units indirectly.

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.