Every Form 4 that BLACK STONE MNERALS B UTS (BSMLP) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow BSMLP and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full BSMLP filings page.
Black Stone Minerals, L.P. director D. Mark DeWalch reported indirect open-market purchases of a total of 72,726 common units representing limited partner interests through DeWalch Diversified LP. The purchases were made at weighted average prices of $13.476 and $13.6217 per unit, across multiple trades within disclosed price ranges.
Following these transactions, DeWalch Diversified LP held 631,248 common units indirectly. Separate holding entries show additional indirect ownership by the reporting person’s wife and a trust, as well as direct ownership reported in his own name.
Black Stone Minerals, L.P. director D. Mark DeWalch reported an open-market purchase of 37,650 common units representing limited partner interests on May 28, 2026 at a weighted average price of $13.2096 per unit. After this transaction, he directly holds 431,495 common units.
The filing also shows indirect holdings, including 6,749 common units held by his wife, 40,809 common units held by the Donald Mark DeWalch Trust, and 558,522 common units held by DeWalch Diversified LP. The price reflects multiple trades between $13.19 and $13.205 per unit.
Black Stone Minerals, L.P. executive chairman and director Carter Thomas L Jr reported an open-market purchase of common units representing limited partner interests. He bought 1,120 common units at a weighted average price between $13.49 and $13.50 per unit. After this purchase, his direct ownership increased to 3,682,724 common units, with additional indirect holdings reported through various family-related entities and trusts.
Black Stone Minerals, L.P. director Ashley J. Longmaid reported an open-market sale of 11,128 common units representing limited partner interests at a weighted average price of $13.4523 per unit. Following the sale, Longmaid directly holds 137,335 common units. The sale was executed through multiple trades between $13.41 and $13.48.
Black Stone Minerals, L.P. Executive Chairman Carter Thomas L Jr reported buying additional common units representing limited partner interests in three open-market purchases. He acquired 23,604 units on May 8 at a weighted average price of $13.3186, 25,000 units on May 11 at $13.4742, and 19,154 units on May 12 at $13.4754 per unit. After these transactions, he directly owns 3,681,604 common units, indicating a net increase in his personal stake.
Black Stone Minerals, L.P. senior vice president, general counsel, and secretary Luke Stevens Putman sold 29,386 common units representing limited partner interests on April 6, 2026 in open-market transactions at a weighted average price of $14.4517 per unit.
The units were sold at prices ranging from $14.31 to $14.64. These sales were made under a pre-arranged Rule 10b5-1 trading plan that the reporting person adopted on December 4, 2025, meaning the trades were scheduled in advance. After these transactions, he directly held 732,031 common units.
Black Stone Minerals, L.P. senior vice president, general counsel, and secretary Luke Stevens Putman sold 29,386 common units representing limited partner interests in an open-market transaction at a weighted average price of $13.748 per unit. After the sale, he directly holds 702,645 units. The transactions were carried out under a Rule 10b5-1 trading plan adopted on December 4, 2025.
Black Stone Minerals, L.P. executive Luke Stevens Putman, SVP, General Counsel and Secretary, reported an open-market sale of 30,276 common units representing limited partner interests on March 5, 2026 at an average price of $15.2459 per unit. After this transaction, he directly holds 761,417 common units. The filing notes that these sales were made under a Rule 10b5-1 trading plan adopted on December 4, 2025. This Form 4/A amends a prior Form 4 that inadvertently omitted the trading plan adoption date.
Black Stone Minerals, L.P. senior vice president, general counsel and secretary Luke Stevens Putman reported an open-market sale of common units representing limited partner interests. On April 6, 2026, he sold 29,386 common units at a weighted average price of $14.4517 per unit. After this transaction, he directly owned 732,031 common units. A footnote explains the units were sold in multiple trades at prices ranging from $14.31 to $14.64 per unit.
Kyle Jerry V. Jr. reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals, L.P. director Jerry V. Kyle Jr. received a grant of 1,240 common units representing limited partner interests on April 2, 2026, valued at $15.12 per unit. According to a footnote, he elected to receive these units in lieu of a cash retainer for serving on the Board of Directors of the partnership’s general partner.
After this equity award, he directly holds 321,147 common units. The filing also lists indirect holdings of 250,088 units held by the Lena C Anderson Kyle 1968 Trust, 4,000 units held by a family limited partnership, and 350,182 units held by the Lena C A Kyle Trust.
Randall William E. reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals, L.P. director Randall William E. received an equity award of 1,488 common units representing limited partner interests at a value of $15.12 per unit. Following this grant, he directly holds 191,774 common units. According to the disclosure, he elected to take these units in lieu of a cash retainer for serving on the Board of Directors of the partnership’s general partner.
Hamman Anne Lenoir reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals, L.P. director Anne Lenoir Hamman received a grant of 473 common units representing limited partner interests at $15.12 per unit as compensation, in lieu of a cash retainer for board service. This increased her directly held units to 7,086. She is also reported as having an indirect interest in 502,703 units through a family limited partnership, while disclaiming beneficial ownership beyond her pecuniary interest.
Stuart Alexander D. reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals, L.P. director Stuart Alexander D. received a grant of 1,570 common units representing limited partner interests on April 2, 2026 at $15.12 per unit. He elected units instead of a cash retainer for Board service and now holds 2,054,275 units directly, plus additional indirect holdings through various trusts and entities, including 2,112,711 units held by Topsfield Energy Ltd.
DeWalch D Mark reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals director D. Mark DeWalch received an equity grant of 1,240 common units representing limited partner interests on April 2, 2026 at $15.12 per unit. According to the footnote, he elected to take these units instead of a cash retainer for serving on the Board of Directors.
After this grant, he holds 393,845 units directly. He also reports additional indirect holdings, including units held through DeWalch Diversified LP, a personal trust, and his wife, reflecting a larger overall economic interest in Black Stone Minerals.
Hamman Anne Lenoir reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals, L.P. director Anne Lenoir Hamman received a grant of 6,613 common units representing limited partner interests on March 11, 2026 at no cost. This award brings her directly held units to 6,613.
The filing also lists 502,703 common units held indirectly through a family limited partnership. A footnote states she disclaims beneficial ownership of these securities except to the extent of her pecuniary interest.
Black Stone Minerals, L.P. reported that senior vice president, general counsel, and secretary Luke Stevens Putman sold 30,276 common units representing limited partner interests in an open-market transaction on March 5, 2026 at an average price of $15.2459 per unit. After this sale, he directly holds 761,417 units.
Black Stone Minerals, L.P. Executive Chairman Carter Thomas L Jr received a grant of 136,315 common units representing limited partner interests on February 24, 2026 at no cost, as settlement of performance units under the company’s Long-Term Incentive Plan.
On the same date, 53,641 common units were disposed of at $15.23 per unit to satisfy tax withholding obligations related to this award. After these transactions, he directly held 3,613,846 common units, with additional indirect holdings reported through various family trusts, a spouse, and Carter2221, Ltd.
Black Stone Minerals, L.P. Co-CEO and President Taylor DeWalch reported equity compensation activity involving common units representing limited partner interests. On February 24, 2026, DeWalch acquired 1,958 common units at no cost as settlement of performance units under the company’s Long-Term Incentive Plan. On the same date, 478 common units were disposed of at $15.23 per unit to satisfy tax withholding obligations related to this award. After these transactions, DeWalch directly held 141,369 common units.
Black Stone Minerals, L.P. insider Putman Luke Stevens, SVP, General Counsel and Secretary, reported equity compensation activity involving common units representing limited partner interests. On February 24, 2026, he acquired 68,853 common units as a grant or award, with no cash price per unit reported.
On the same date, he disposed of 25,302 common units in a tax-withholding transaction, where the units were valued at $15.23 each to satisfy tax liabilities tied to the performance unit settlement under the company’s Long-Term Incentive Plan. Following these transactions, he directly owned 791,693 common units.
Black Stone Minerals, L.P. director and Co-CEO Carter Fowler reported incentive-based equity activity in common units representing limited partner interests. He acquired 1,330 common units on February 24, 2026 as a grant or award, bringing his direct holdings to 125,704 units immediately after the grant. On the same date, 325 common units were disposed of to cover tax withholding obligations at a price of $15.23 per unit, resulting in direct ownership of 125,379 common units. The filing notes that these transactions represent settlement of performance units awarded under the company’s Long-Term Incentive Plan.
Black Stone Minerals, L.P. senior vice president, CFO, and treasurer Chris Bonner reported equity compensation activity in common units representing limited partner interests. He acquired 1,447 common units on February 24, 2026 as a grant or award, bringing his direct holdings to 51,108 units immediately after this acquisition. On the same date, 430 common units were disposed of at $15.23 per unit to cover tax withholding obligations tied to this equity award, leaving him with 50,678 common units held directly.
Black Stone Minerals, L.P. director Michael C. Linn reported acquiring additional equity in the partnership. On January 13, 2026, he acquired 14,255 common units representing limited partner interests at a price of $0.00 per unit, indicating a no-cost issuance to him. Following this transaction, he directly holds 208,150 common units of Black Stone Minerals, as disclosed in the Form 4 insider trading report.
Black Stone Minerals, L.P. director and Co-CEO/President Carter Fowler reported an automatic share withholding tied to equity compensation. On January 7, 2026, 2,511 common units representing limited partner interests were withheld at $13.38 per unit to cover taxes associated with the vesting of restricted common units issued under the company’s LTIP. After this tax withholding, Fowler directly beneficially owned 44,268 common units.
Black Stone Minerals, L.P. senior vice president, chief financial officer, and treasurer Chris Bonner reported a small change in his ownership of company common units representing limited partner interests. On 01/07/2026, he disposed of 642 common units at a price of $13.38 per unit, coded as transaction type "F," which the filing explains represents tax withholding associated with the vesting of restricted common units issued pursuant to the LTIP. After this transaction, Bonner beneficially owned 6,938 common units directly.
Black Stone Minerals, L.P. executive reports tax-related unit withholding
Black Stone Minerals, L.P. Co-CEO, President, and director Taylor DeWalch reported a Form 4 transaction involving the partnership's common units representing limited partner interests. On January 7, 2026, DeWalch had 5,458 common units disposed of at $13.38 per unit under transaction code F, which indicates shares withheld to cover taxes. A footnote explains that this represents tax withholding tied to the vesting of restricted common units issued under the company's long-term incentive plan.
Following this tax withholding transaction, DeWalch beneficially owned 59,783 common units directly. The filing reflects an administrative equity event related to compensation rather than an open-market purchase or sale.
Black Stone Minerals, L.P. Executive Chairman Thomas L. Carter Jr. reported a tax-related share withholding on common units representing limited partner interests. On 01/07/2026, 34,933 common units were withheld at $13.38 per unit to cover taxes upon the vesting of restricted common units issued under the company’s LTIP. After this transaction, he beneficially owned 3,477,768 common units directly, along with additional units held indirectly through family trusts, his spouse, and Carter2221, Ltd.
Black Stone Minerals, L.P. insider activity: Senior Vice President, General Counsel, and Secretary Luke S. Putman reported a tax-related share withholding tied to equity compensation. On 01/07/2026, 14,920 common units representing limited partner interests were withheld at a price of $13.38 per unit, coded as an "F" transaction, which indicates shares withheld to cover taxes upon vesting of equity awards.
Following this tax withholding, Putman beneficially owned 682,722 common units directly. The filing clarifies in a footnote that the transaction represents tax withholding associated with the vesting of restricted common units issued under the company’s long-term incentive plan, rather than an open-market sale.
Black Stone Minerals, L.P. director D. Mark DeWalch reported receiving additional equity as part of his board compensation. On 01/02/2026, he acquired 1,410 common units representing limited partner interests at $13.29 per unit, electing to take units instead of a cash retainer for service on the board of the partnership's general partner.
Following this transaction, DeWalch beneficially owned 378,350 common units directly. He also reported indirect beneficial ownership of 558,522 common units through DeWalch Diversified LP, 40,809 common units through the Donald Mark DeWalch Trust, and 6,749 common units through his wife.
Black Stone Minerals, L.P. director Alexander D. Stuart reported acquiring additional common units representing limited partner interests. On 01/02/2026 he received 1,693 common units, reported as an acquisition at a price of $13.29 per unit, under a previous arrangement to take board cash retainers in equity instead.
Following this transaction, he is shown as directly owning 2,038,450 common units. He also reports significant indirect ownership through various entities and trusts, including 1,251,634 common units held by RDS Investments, L.P. and 2,112,711 common units held by Topsfield Energy Ltd., along with additional indirect holdings through multiple family and marital trusts.
Black Stone Minerals, L.P. director William E. Randall reported acquiring additional equity in the partnership through board compensation. On 01/02/2026, he received 1,537 common units representing limited partner interests at a price of $13.29 per unit, electing to take units instead of a cash retainer for his service on the Board of Directors of the partnership's general partner. Following this transaction, he beneficially owned 176,031 common units, held directly.