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NYSE · USD

BSM

Black Stone Minerals, L.P.

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Tapewire entity
4198
SEC CIK
0001621434
Parsed reports
555

Last 12 months

Inside the activity.

7 purchase rows · 8 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202600
Feb 202600
Mar 202602
Apr 202602
May 202662
Jun 202610
Jul 202600
Aug 202602
Sep 202600
Oct 202600

Latest available

Insider transactions

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Purchases/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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
January 13, 2026 Filed Jan 15, 2026 22:33 UTC GrantCommon units representing limited partner interests 14,255 $0.00 $0.00
Disclosure

SEC source: 0001987724-26-000002 · wk-form4_1768516410.xml · nonDerivative · entry 1

Whitehead James · CIK 0001987724 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,865

Read SEC document
January 13, 2026 Filed Jan 15, 2026 17:33 UTC GrantCommon units representing limited partner interests 14,255 $0.00 $0.00
Disclosure

SEC source: 0001224909-26-000002 · wk-form4_1768516386.xml · nonDerivative · entry 1

BARTH CARIN MARCY · CIK 0001224909 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,447

Read SEC document
January 13, 2026 Filed Jan 15, 2026 22:33 UTC GrantCommon units representing limited partner interests 14,255 $0.00 $0.00
Disclosure

SEC source: 0001349033-26-000002 · wk-form4_1768516426.xml · nonDerivative · entry 1

Linn Michael C · CIK 0001349033 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 208,150

Read SEC document
January 13, 2026 Filed Jan 15, 2026 22:33 UTC GrantCommon units representing limited partner interests 14,255 $0.00 $0.00
Disclosure

SEC source: 0001639921-26-000005 · wk-form4_1768516405.xml · nonDerivative · entry 1

Stuart Alexander D. · CIK 0001639921 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,052,705

Read SEC document
January 13, 2026 Filed Jan 15, 2026 22:33 UTC GrantCommon units representing limited partner interests 14,255 $0.00 $0.00
Disclosure

SEC source: 0001638259-26-000004 · wk-form4_1768516415.xml · nonDerivative · entry 1

DeWalch D Mark · CIK 0001638259 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 392,605

Read SEC document
January 13, 2026 Filed Jan 15, 2026 22:33 UTC GrantCommon units representing limited partner interests 14,255 $0.00 $0.00
Disclosure

SEC source: 0001636920-26-000004 · wk-form4_1768516399.xml · nonDerivative · entry 1

Kyle Jerry V. Jr. · CIK 0001636920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 319,907

Read SEC document
January 13, 2026 Filed Jan 15, 2026 22:33 UTC GrantCommon units representing limited partner interests 14,255 $0.00 $0.00
Disclosure

SEC source: 0001709335-26-000004 · wk-form4_1768516394.xml · nonDerivative · entry 1

Randall William E. · CIK 0001709335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 190,286

Read SEC document
January 07, 2026 Filed Jan 9, 2026 16:59 UTC
Carter FowlerDirector · Co-CEO and President
Tax withholdingCommon units representing limited partner interests 2,511 $13.38 $33,597.18
Disclosure

SEC source: 0002057498-26-000002 · wk-form4_1767995968.xml · nonDerivative · entry 1

Carter Fowler · CIK 0002057498 · Director · Co-CEO and President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,268

F1 · kind: Represents tax withholding associated with vesting of restricted common units issued pursuant to LTIP.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 16:59 UTC
Bonner ChrisSVP, CFO, and Treasurer
Tax withholdingCommon units representing limited partner interests 642 $13.38 $8,589.96
Disclosure

SEC source: 0002025911-26-000002 · wk-form4_1767995962.xml · nonDerivative · entry 1

Bonner Chris · CIK 0002025911 · SVP, CFO, and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,938

F1 · kind: Represents tax withholding associated with vesting of restricted common units issued pursuant to LTIP.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 16:59 UTC
DeWalch TaylorDirector · Co-CEO and President
Tax withholdingCommon units representing limited partner interests 5,458 $13.38 $73,028.04
Disclosure

SEC source: 0002025717-26-000002 · wk-form4_1767995956.xml · nonDerivative · entry 1

DeWalch Taylor · CIK 0002025717 · Director · Co-CEO and President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,783

F1 · kind: Represents tax withholding associated with vesting of restricted common units issued pursuant to LTIP.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 21:59 UTC
Carter Thomas L JrDirector · Executive Chairman
Tax withholdingCommon units representing limited partner interests 34,933 $13.38 $467,403.54
Disclosure

SEC source: 0001319960-26-000003 · wk-form4_1767995951.xml · nonDerivative · entry 1

Carter Thomas L Jr · CIK 0001319960 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,477,768

F1 · kind: Represents tax withholding associated with vesting of restricted common units issued pursuant to LTIP.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 21:59 UTC
Putman Luke StevensSVP, General Counsel, and Sec
Tax withholdingCommon units representing limited partner interests 14,920 $13.38 $199,629.60
Disclosure

SEC source: 0001337171-26-000002 · wk-form4_1767995945.xml · nonDerivative · entry 1

Putman Luke Stevens · CIK 0001337171 · SVP, General Counsel, and Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 682,722

F1 · kind: Represents tax withholding associated with vesting of restricted common units issued pursuant to LTIP.

Read SEC document
January 07, 2026 Filed Jan 15, 2026 22:31 UTC
Phillips Erin LeahController (PAO)
Tax withholdingCommon units representing limited partner interests 211 $13.38 $2,823.18
Disclosure

SEC source: 0001621434-26-000008 · wk-form4_1768516266.xml · nonDerivative · entry 1

Phillips Erin Leah · CIK 0002105455 · Controller (PAO)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,909

F1 · kind: Represents tax withholding associated with vesting of restricted common units issued pursuant to LTIP.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 22:00 UTC GrantCommon units representing limited partner interests 1,410 $13.29 $18,738.90
Disclosure

SEC source: 0001638259-26-000002 · wk-form4_1767736805.xml · nonDerivative · entry 1

DeWalch D Mark · CIK 0001638259 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 378,350

F1 · acquired: 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.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 22:00 UTC GrantCommon units representing limited partner interests 1,693 $13.29 $22,499.97
Disclosure

SEC source: 0001639921-26-000002 · wk-form4_1767736799.xml · nonDerivative · entry 1

Stuart Alexander D. · CIK 0001639921 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,038,450

F1 · kind: 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.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 21:59 UTC GrantCommon units representing limited partner interests 1,537 $13.29 $20,426.73
Disclosure

SEC source: 0001709335-26-000002 · wk-form4_1767736793.xml · nonDerivative · entry 1

Randall William E. · CIK 0001709335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 176,031

F1 · kind: 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.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 21:59 UTC GrantCommon units representing limited partner interests 1,410 $13.29 $18,738.90
Disclosure

SEC source: 0001636920-26-000002 · wk-form4_1767736787.xml · nonDerivative · entry 1

Kyle Jerry V. Jr. · CIK 0001636920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 305,652

F1 · kind: 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.

Read SEC document
October 03, 2025 Filed Oct 7, 2025 21:05 UTC GrantCommon units representing limited partner interests 1,426 $13.14 $18,737.64
Disclosure

SEC source: 0001638259-25-000004 · wk-form4_1759871106.xml · nonDerivative · entry 1

DeWalch D Mark · CIK 0001638259 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 376,940

F1 · kind: 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.

Read SEC document
October 03, 2025 Filed Oct 7, 2025 21:05 UTC GrantCommon units representing limited partner interests 1,426 $13.14 $18,737.64
Disclosure

SEC source: 0001709335-25-000004 · wk-form4_1759871101.xml · nonDerivative · entry 1

Randall William E. · CIK 0001709335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 174,494

F1 · kind: 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.

Read SEC document
October 03, 2025 Filed Oct 7, 2025 21:04 UTC GrantCommon units representing limited partner interests 1,426 $13.14 $18,737.64
Disclosure

SEC source: 0001636920-25-000004 · wk-form4_1759871092.xml · nonDerivative · entry 1

Kyle Jerry V. Jr. · CIK 0001636920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 304,242

F1 · kind: 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.

Read SEC document
October 03, 2025 Filed Oct 7, 2025 21:04 UTC GrantCommon units representing limited partner interests 2,378 $13.14 $31,246.92
Disclosure

SEC source: 0001640004-25-000004 · wk-form4_1759871086.xml · nonDerivative · entry 1

Mathis William N. · CIK 0001640004 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 246,200

F1 · kind: 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.

Read SEC document
October 03, 2025 Filed Oct 7, 2025 21:04 UTC GrantCommon units representing limited partner interests 1,712 $13.14 $22,495.68
Disclosure

SEC source: 0001639921-25-000004 · wk-form4_1759871080.xml · nonDerivative · entry 1

Stuart Alexander D. · CIK 0001639921 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,036,757

F1 · kind: 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.

Read SEC document
September 12, 2025 Filed Sep 12, 2025 20:56 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 14,000 $12.59 $176,204.00
Disclosure

SEC source: 0001621434-25-000123 · wk-form4_1757710586.xml · nonDerivative · entry 2

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,512,701

F2 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $12.53 to $12.63, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
September 11, 2025 Filed Sep 12, 2025 20:56 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 1,300 $12.39 $16,108.95
Disclosure

SEC source: 0001621434-25-000123 · wk-form4_1757710586.xml · nonDerivative · entry 1

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,498,701

F1 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $12.38 to $12.40, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
September 10, 2025 Filed Sep 10, 2025 20:36 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 10,536 $12.32 $129,794.04
Disclosure

SEC source: 0001621434-25-000121 · wk-form4_1757536584.xml · nonDerivative · entry 3

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,497,401

F3 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $12.22 to $12.38, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
September 09, 2025 Filed Sep 10, 2025 20:36 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 1,307 $12.07 $15,769.61
Disclosure

SEC source: 0001621434-25-000121 · wk-form4_1757536584.xml · nonDerivative · entry 2

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,486,865

F2 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $12.04 to $12.10, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
September 08, 2025 Filed Sep 10, 2025 20:36 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 13,527 $11.90 $160,937.48
Disclosure

SEC source: 0001621434-25-000121 · wk-form4_1757536584.xml · nonDerivative · entry 1

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,485,558

F1 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $11.88 to $11.91, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
August 20, 2025 Filed Aug 20, 2025 21:08 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 21,000 $12.03 $252,619.50
Disclosure

SEC source: 0001621434-25-000116 · wk-form4_1755724096.xml · nonDerivative · entry 2

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,472,031

F2 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $11.94 to $12.07, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
August 19, 2025 Filed Aug 20, 2025 21:08 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 20,000 $11.97 $239,330.00
Disclosure

SEC source: 0001621434-25-000116 · wk-form4_1755724096.xml · nonDerivative · entry 1

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,451,031

F1 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $11.915 to $12.05, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 22:08 UTC GiftCommon units representing limited partner interests 20,200 $0.00 $0.00
Disclosure

SEC source: 0001621434-25-000114 · wk-form4_1755554927.xml · nonDerivative · entry 1

Stuart Alexander D. · CIK 0001639921 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,035,045

Read SEC document
August 12, 2025 Filed Aug 14, 2025 21:04 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 9,200 $12.36 $113,723.04
Disclosure

SEC source: 0001621434-25-000112 · wk-form4_1755205474.xml · nonDerivative · entry 1

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,431,031

F1 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $12.34 to $12.40, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
August 11, 2025 Filed Aug 11, 2025 20:50 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 25,000 $12.10 $302,505.00
Disclosure

SEC source: 0001621434-25-000110 · wk-form4_1754945411.xml · nonDerivative · entry 3

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,421,831

F3 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $12.00 to $12.13, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
August 08, 2025 Filed Aug 11, 2025 20:50 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 27,500 $12.20 $335,546.75
Disclosure

SEC source: 0001621434-25-000110 · wk-form4_1754945411.xml · nonDerivative · entry 2

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,396,831

F2 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $12.12 to $12.28, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
August 07, 2025 Filed Aug 11, 2025 20:50 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 19,710 $12.24 $241,295.73
Disclosure

SEC source: 0001621434-25-000110 · wk-form4_1754945411.xml · nonDerivative · entry 1

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,369,331

F1 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $12.21 to $12.26, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

Read SEC document
July 03, 2025 Filed Jul 3, 2025 21:32 UTC GrantCommon units representing limited partner interests 1,433 $13.08 $18,743.64
Disclosure

SEC source: 0001621434-25-000101 · wk-form4_1751578336.xml · nonDerivative · entry 1

Randall William E. · CIK 0001709335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 173,068

F1 · kind: 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.

Read SEC document
July 03, 2025 Filed Jul 3, 2025 21:32 UTC GrantCommon units representing limited partner interests 1,433 $13.08 $18,743.64
Disclosure

SEC source: 0001621434-25-000100 · wk-form4_1751578330.xml · nonDerivative · entry 1

Kyle Jerry V. Jr. · CIK 0001636920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 302,816

F1 · kind: 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.

Read SEC document
July 03, 2025 Filed Jul 3, 2025 21:32 UTC GrantCommon units representing limited partner interests 1,433 $13.08 $18,743.64
Disclosure

SEC source: 0001621434-25-000098 · wk-form4_1751578316.xml · nonDerivative · entry 1

DeWalch D Mark · CIK 0001638259 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 375,514

F1 · kind: 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.

Read SEC document
July 03, 2025 Filed Jul 3, 2025 21:32 UTC GrantCommon units representing limited partner interests 1,720 $13.08 $22,497.60
Disclosure

SEC source: 0001621434-25-000099 · wk-form4_1751578323.xml · nonDerivative · entry 1

Stuart Alexander D. · CIK 0001639921 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,055,245

F1 · kind: 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.

Read SEC document
July 03, 2025 Filed Jul 3, 2025 21:31 UTC GrantCommon units representing limited partner interests 1,624 $13.08 $21,241.92
Disclosure

SEC source: 0001621434-25-000097 · wk-form4_1751578310.xml · nonDerivative · entry 1

Mathis William N. · CIK 0001640004 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 243,822

F1 · kind: 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.

Read SEC document
June 20, 2025 Filed Jun 20, 2025 21:29 UTC OtherCommon units representing limited partner interests 12,153 $0.00 $0.00
Disclosure

SEC source: 0001621434-25-000088 · wk-form4_1750454958.xml · nonDerivative · entry 3

Mathis William N. · CIK 0001640004 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By W2M Limited

Disclosed balance after: 12,153

F1 · kind: Pro rata distribution of BSM common units from a limited partnership not subject to Section 16 reporting requirements to the entities reported here.

Read SEC document
June 20, 2025 Filed Jun 20, 2025 21:29 UTC OtherCommon units representing limited partner interests 54,690 $0.00 $0.00
Disclosure

SEC source: 0001621434-25-000088 · wk-form4_1750454958.xml · nonDerivative · entry 2

Mathis William N. · CIK 0001640004 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Willen Partners LP

Disclosed balance after: 54,690

F1 · kind: Pro rata distribution of BSM common units from a limited partnership not subject to Section 16 reporting requirements to the entities reported here.

Read SEC document
June 20, 2025 Filed Jun 20, 2025 21:29 UTC OtherCommon units representing limited partner interests 54,690 $0.00 $0.00
Disclosure

SEC source: 0001621434-25-000088 · wk-form4_1750454958.xml · nonDerivative · entry 1

Mathis William N. · CIK 0001640004 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Travis A. Mathis Special Trust

Disclosed balance after: 324,763

F1 · kind: Pro rata distribution of BSM common units from a limited partnership not subject to Section 16 reporting requirements to the entities reported here.

Read SEC document
May 29, 2025 Filed May 30, 2025 17:57 UTC
Clark Carrie PearsonSVP, Chief Commercial Officer
SaleCommon units representing limited partner interests 36,900 $13.56 $500,338.17
Disclosure

SEC source: 0001621434-25-000077 · wk-form4_1748642222.xml · nonDerivative · entry 1

Clark Carrie Pearson · CIK 0001805482 · SVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 165,857

F1 · price: The price reported in Column 4 is a weighted average price. These common units were sold in multiple transactions at prices ranging from $13.52 to $13.62, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units sold at each separate price within the ranges set forth in this footnote.

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May 21, 2025 Filed May 21, 2025 21:29 UTC
Carter Thomas L JrDirector · CEO, President, and Chairman
PurchaseCommon units representing limited partner interests 14,500 $13.52 $196,069.00
Disclosure

SEC source: 0001621434-25-000075 · wk-form4_1747862982.xml · nonDerivative · entry 1

Carter Thomas L Jr · CIK 0001319960 · Director · CEO, President, and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,349,621

F1 · price: The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $13.50 to 13.54, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote.

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April 04, 2025 Filed Apr 7, 2025 21:06 UTC GrantCommon units representing limited partner interests 1,227 $15.27 $18,736.29
Disclosure

SEC source: 0001621434-25-000072 · wk-form4_1744059868.xml · nonDerivative · entry 1

DeWalch D Mark · CIK 0001638259 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 374,081

F1 · kind: 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.

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April 04, 2025 Filed Apr 7, 2025 21:04 UTC GrantCommon units representing limited partner interests 1,473 $15.27 $22,492.71
Disclosure

SEC source: 0001621434-25-000070 · wk-form4_1744059843.xml · nonDerivative · entry 1

Stuart Alexander D. · CIK 0001639921 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,053,525

F1 · kind: 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.

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April 04, 2025 Filed Apr 7, 2025 21:04 UTC GrantCommon units representing limited partner interests 1,227 $15.27 $18,736.29
Disclosure

SEC source: 0001621434-25-000071 · wk-form4_1744059855.xml · nonDerivative · entry 1

Kyle Jerry V. Jr. · CIK 0001636920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 301,383

F1 · kind: 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.

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April 04, 2025 Filed Apr 7, 2025 21:03 UTC GrantCommon units representing limited partner interests 1,391 $15.27 $21,240.57
Disclosure

SEC source: 0001621434-25-000069 · wk-form4_1744059830.xml · nonDerivative · entry 1

Mathis William N. · CIK 0001640004 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 242,198

F1 · kind: 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.

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April 04, 2025 Filed Apr 7, 2025 21:03 UTC GrantCommon units representing limited partner interests 1,227 $15.27 $18,736.29
Disclosure

SEC source: 0001621434-25-000068 · wk-form4_1744059819.xml · nonDerivative · entry 1

Randall William E. · CIK 0001709335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,635

F1 · kind: 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.

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February 25, 2025 Filed Feb 27, 2025 18:15 UTC
Carter FowlerSVP, Corporate Development
Tax withholdingCommon units representing limited partner interests 552 $15.11 $8,340.72
Disclosure

SEC source: 0001621434-25-000061 · wk-form4_1740698142.xml · nonDerivative · entry 2

Carter Fowler · CIK 0002057498 · SVP, Corporate Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,779

F1 · kind: Represents settlement of performance units awarded under the Issuer's Long-Term Incentive Plan. For tax withholding purposes, the value of the common units was deemed to be equal to the closing price of BSM common units on February 25, 2025.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.