Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Black Stone Minerals, L.P.BSM · Entity 4198 | Director | October 02, 2026 | October 05, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Black Stone Minerals, L.P.
Report date October 02, 2026 · Filed October 05, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common units representing limited partner interestsSEC Table I · non-derivative | Direct | 434,146 |
Reported balance
After 2026-10-02 transaction · row 1
1 source rowRow 1 · 2026-10-02 · Grant · Acquired 1,309 · Balance 434,146 F1: 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. |
| Common units representing limited partner interestsSEC Table I · non-derivative | IndirectBy DeWalch Diversified LP | 631,248 |
Reported balance
Holding disclosure · report date 2026-10-02 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 631,248 |
| Common units representing limited partner interestsSEC Table I · non-derivative | IndirectBy Donald Mark DeWalch Trust | 40,809 |
Reported balance
Holding disclosure · report date 2026-10-02 · row 3
Holding and transaction disclosures are not merged.
1 source rowRow 3 · Balance 40,809 |
| Common units representing limited partner interestsSEC Table I · non-derivative | IndirectBy wife | 6,749 |
Reported balance
Holding disclosure · report date 2026-10-02 · row 4
Holding and transaction disclosures are not merged.
1 source rowRow 4 · Balance 6,749 |
Filing footnotes · ownership attribution and instrument terms
F1: 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.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| January 11, 2018 Filed Jan 16, 2018 21:50 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | GrantCommon units representing limited partner interests | 9,536 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-18-003620 · doc4.xml · nonDerivative · entry 1 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 92,565 Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionPreferred units representing limited partner interests · Derivative | 8 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · derivative · entry 13 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By Donald Mark DeWalch Trust Disclosed balance after: 9 Underlying: Common and subordinated units representing LP interests · Not disclosed shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F3 · derivative.exercise_date: Each preferred unit may be converted at any time at the option of the holder thereof into common units at the then-effective conversion rate. In addition, each year from 2016 to 2018 a number of preferred units will automatically convert into common units and subordinated units at the then-effective conversion rate unless redeemed, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F3 · derivative.expiration_date: Each preferred unit may be converted at any time at the option of the holder thereof into common units at the then-effective conversion rate. In addition, each year from 2016 to 2018 a number of preferred units will automatically convert into common units and subordinated units at the then-effective conversion rate unless redeemed, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F1 · derivative.underlying_shares: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionPreferred units representing limited partner interests · Derivative | 2 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · derivative · entry 12 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By daughter Disclosed balance after: 3 Underlying: Common and subordinated units representing LP interests · Not disclosed shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F3 · derivative.exercise_date: Each preferred unit may be converted at any time at the option of the holder thereof into common units at the then-effective conversion rate. In addition, each year from 2016 to 2018 a number of preferred units will automatically convert into common units and subordinated units at the then-effective conversion rate unless redeemed, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F3 · derivative.expiration_date: Each preferred unit may be converted at any time at the option of the holder thereof into common units at the then-effective conversion rate. In addition, each year from 2016 to 2018 a number of preferred units will automatically convert into common units and subordinated units at the then-effective conversion rate unless redeemed, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F1 · derivative.underlying_shares: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionPreferred units representing limited partner interests · Derivative | 2 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · derivative · entry 11 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By son Disclosed balance after: 3 Underlying: Common and subordinated units representing LP interests · Not disclosed shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F3 · derivative.exercise_date: Each preferred unit may be converted at any time at the option of the holder thereof into common units at the then-effective conversion rate. In addition, each year from 2016 to 2018 a number of preferred units will automatically convert into common units and subordinated units at the then-effective conversion rate unless redeemed, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F3 · derivative.expiration_date: Each preferred unit may be converted at any time at the option of the holder thereof into common units at the then-effective conversion rate. In addition, each year from 2016 to 2018 a number of preferred units will automatically convert into common units and subordinated units at the then-effective conversion rate unless redeemed, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F1 · derivative.underlying_shares: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionPreferred units representing limited partner interests · Derivative | 5 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · derivative · entry 10 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By wife Disclosed balance after: 5 Underlying: Common and subordinated units representing LP interests · Not disclosed shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F3 · derivative.exercise_date: Each preferred unit may be converted at any time at the option of the holder thereof into common units at the then-effective conversion rate. In addition, each year from 2016 to 2018 a number of preferred units will automatically convert into common units and subordinated units at the then-effective conversion rate unless redeemed, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F3 · derivative.expiration_date: Each preferred unit may be converted at any time at the option of the holder thereof into common units at the then-effective conversion rate. In addition, each year from 2016 to 2018 a number of preferred units will automatically convert into common units and subordinated units at the then-effective conversion rate unless redeemed, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F1 · derivative.underlying_shares: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionSubordinated units representing limited partner interests · Derivative | 318 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · derivative · entry 9 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By Donald Mark DeWalch Trust Disclosed balance after: 19,750 Underlying: Common units representing limited partner interests · 318 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F2 · derivative.exercise_date: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F2 · derivative.expiration_date: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionSubordinated units representing limited partner interests · Derivative | 79 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · derivative · entry 8 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By daughter Disclosed balance after: 4,214 Underlying: Common units representing limited partner interests · 79 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F2 · derivative.exercise_date: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F2 · derivative.expiration_date: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionSubordinated units representing limited partner interests · Derivative | 79 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · derivative · entry 7 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By son Disclosed balance after: 4,214 Underlying: Common units representing limited partner interests · 79 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F2 · derivative.exercise_date: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F2 · derivative.expiration_date: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionSubordinated units representing limited partner interests · Derivative | 199 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · derivative · entry 6 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By wife Disclosed balance after: 3,628 Underlying: Common units representing limited partner interests · 199 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F2 · derivative.exercise_date: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). F2 · derivative.expiration_date: Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875). Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionCommon units representing limited partner interests | 243 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · nonDerivative · entry 4 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By Donald Mark DeWalch Trust Disclosed balance after: 15,078 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionCommon units representing limited partner interests | 61 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · nonDerivative · entry 3 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By daughter Disclosed balance after: 4,718 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionCommon units representing limited partner interests | 61 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · nonDerivative · entry 2 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By son Disclosed balance after: 4,733 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. Read SEC document |
| April 28, 2017 Filed May 2, 2017 01:18 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | ConversionCommon units representing limited partner interests | 152 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-029053 · doc4.xml · nonDerivative · entry 1 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By wife Disclosed balance after: 2,770 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. F1 · price: A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units. Read SEC document |
| January 11, 2017 Filed Jan 12, 2017 23:55 UTC | Black Stone Minerals, L.P. BSM · Entity 4198 | GrantCommon units representing limited partner interests | 9,095 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-17-003578 · doc4.xml · nonDerivative · entry 1 DeWalch D Mark · CIK 0001638259 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 83,029 Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.