BSM · Insider Trading
Black Stone Minerals, L.P.
Every open-market purchase and sale reported by BSM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-11-10 | Thomas L Carter Jr | Executive Chairman | Buy | +50,000 | +$686.29K |
| 2026-11-10 | James Whitehead | Director | Sell | −671,210 | −$9.01M |
| 2026-10-05 | William E. Randall | Director | A | +1,571 | +$22.50K |
| 2026-10-05 | Jerry V. Kyle Jr. | Director | A | +1,309 | +$18.74K |
| 2026-10-05 | D Mark DeWalch | Director | A | +1,309 | +$18.74K |
| 2026-10-05 | Alexander D. Stuart | Director | A | +1,658 | +$23.74K |
| 2026-10-05 | Anne Lenoir Hamman | Director | A | +1,309 | +$18.74K |
| 2026-08-19 | Alexander D. Stuart | Director | G | −15,900 | — |
| 2026-08-10 | James Whitehead | Director | Sell | −2,127,105 | −$28.10M |
| 2026-08-04 | Jerry V. Kyle Jr. | Director | J | +7,665 | — |
| 2026-07-02 | William E. Randall | Director | A | +1,610 | +$22.49K |
| 2026-07-02 | Anne Lenoir Hamman | Director | A | +1,342 | +$18.75K |
| 2026-07-02 | D Mark DeWalch | Director | A | +1,342 | +$18.75K |
| 2026-07-02 | Alexander D. Stuart | Director | A | +1,700 | +$23.75K |
| 2026-07-02 | Jerry V. Kyle Jr. | Director | A | +1,342 | +$18.75K |
| 2026-06-02 | D Mark DeWalch | Director | Buy | +72,726 | +$985.35K |
| 2026-05-28 | D Mark DeWalch | Director | Buy | +37,650 | +$497.34K |
| 2026-05-14 | Thomas L Carter Jr | Executive Chairman | Buy | +1,120 | +$15.12K |
| 2026-05-13 | Ashley J Longmaid | Director | Sell | −11,128 | −$149.70K |
| 2026-05-12 | Thomas L Carter Jr | Executive Chairman | Buy | +67,758 | +$909.34K |
| 2026-05-06 | Luke Stevens Putman | SVP, General Counsel, and Sec | Sell | −29,386 | −$404.00K |
| 2026-05-06 | Luke Stevens Putman | SVP, General Counsel, and Sec | Sell | −30,276 | −$461.58K |
| 2026-05-06 | Luke Stevens Putman | SVP, General Counsel, and Sec | Sell | −29,386 | −$424.68K |
| 2026-04-07 | Luke Stevens Putman | SVP, General Counsel, and Sec | Sell | −29,386 | −$424.68K |
| 2026-04-06 | D Mark DeWalch | Director | A | +1,240 | +$18.75K |
| 2026-04-06 | Anne Lenoir Hamman | Director | A | +473 | +$7.15K |
| 2026-04-06 | William E. Randall | Director | A | +1,488 | +$22.50K |
| 2026-04-06 | Jerry V. Kyle Jr. | Director | A | +1,240 | +$18.75K |
| 2026-04-06 | Alexander D. Stuart | Director | A | +1,570 | +$23.74K |
| 2026-03-12 | Anne Lenoir Hamman | Director | A | +6,613 | — |
| 2026-03-06 | Luke Stevens Putman | SVP, General Counsel, and Sec | Sell | −30,276 | −$461.58K |
| 2026-02-26 | Taylor DeWalch | Co-CEO and President | MIXED | +1,480 | −$7.28K |
| 2026-02-26 | Fowler Carter | Co-CEO and President | MIXED | +1,005 | −$4.95K |
| 2026-02-26 | Thomas L Carter Jr | Executive Chairman | MIXED | +82,674 | −$816.95K |
| 2026-02-26 | Chris Bonner | SVP, CFO, and Treasurer | MIXED | +1,017 | −$6.55K |
| 2026-02-26 | Luke Stevens Putman | SVP, General Counsel, and Sec | MIXED | +43,551 | −$385.35K |
| 2026-02-06 | Chris Bonner | SVP, CFO, and Treasurer | A | +42,723 | — |
| 2026-02-06 | Erin Leah Phillips | Controller (PAO) | A | +2,002 | — |
| 2026-02-06 | Luke Stevens Putman | SVP, General Counsel, and Sec | A | +65,420 | — |
| 2026-02-06 | Taylor DeWalch | Co-CEO and President | A | +80,106 | — |
| 2026-02-06 | Thomas L Carter Jr | Executive Chairman | A | +53,404 | — |
| 2026-02-06 | Fowler Carter | Co-CEO and President | A | +80,106 | — |
| 2026-01-15 | Carin Marcy Barth | Director | A | +14,255 | — |
| 2026-01-15 | Ashley J Longmaid | Director | A | +14,255 | — |
| 2026-01-15 | Erin Leah Phillips | Controller (PAO) | F | −211 | −$2.82K |
| 2026-01-15 | Michael C Linn | Director | A | +14,255 | — |
| 2026-01-15 | James Whitehead | Director | A | +14,255 | — |
| 2026-01-15 | D Mark DeWalch | Director | A | +14,255 | — |
| 2026-01-15 | William E. Randall | Director | A | +14,255 | — |
| 2026-01-15 | Jerry V. Kyle Jr. | Director | A | +14,255 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Thomas L Carter Jr | Executive Chairman | 15,164,227 | $208.36M |
| James Whitehead | Director | 3,154,011 | $43.34M |
| Alexander D. Stuart | Director | 2,116,274 | $29.08M |
| Luke Stevens Putman | SVP, General Counsel, and Sec | 732,031 | $10.06M |
| William N. Mathis | Director | 541,774 | $7.44M |
| Anne Lenoir Hamman | Director | 512,440 | $7.04M |
| D Mark DeWalch | Director | 474,955 | $6.53M |
| Jerry V. Kyle Jr. | Director | 327,798 | $4.50M |
| Michael C Linn | Director | 208,150 | $2.86M |
| William E. Randall | Director | 194,955 | $2.68M |
| Carrie Pearson Clark | SVP, Chief Commercial Officer | 165,857 | $2.28M |
| Carin Marcy Barth | Director | 150,210 | $2.06M |
| Taylor DeWalch | Co-CEO and President | 141,847 | $1.95M |
| Ashley J Longmaid | Director | 137,335 | $1.89M |
| Fowler Carter | Co-CEO and President | 125,704 | $1.73M |
| Chris Bonner | SVP, CFO, and Treasurer | 51,108 | $702.22K |
| Erin Leah Phillips | Controller (PAO) | 3,911 | $53.74K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the BSM quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.