17 insiders reported 94 Form 4 transactions for Black Stone Minerals, L.P. (BSM) over the past 18 months (most recent 2026-08-19). Recent activity: Stuart Alexander D. (Director) Sell 15,900 shares, Whitehead James (Director) Sell 498,343 shares, Whitehead James (Director) Sell 1.6M shares, Kyle Jerry V. Jr. (Director) Buy 7,665 shares, Kyle Jerry V. Jr. (Director) Buy 1,342 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-19 | Stuart Alexander D. | Director | Sell | 15,900 | $0 |
| 2026-08-10 | Whitehead James | Director | Sell | 498,343 | $6.6M |
| 2026-08-10 | Whitehead James | Director | Sell | 1.6M | $21.5M |
| 2026-08-04 | Kyle Jerry V. Jr. | Director | Buy | 7,665 | $0 |
| 2026-07-02 | Kyle Jerry V. Jr. | Director | Buy | 1,342 | $18,748 |
| 2026-07-02 | DeWalch D Mark | Director | Buy | 1,342 | $18,748 |
| 2026-07-02 | Stuart Alexander D. | Director | Buy | 1,700 | $23,749 |
| 2026-07-02 | Randall William E. | Director | Buy | 1,610 | $22,492 |
| 2026-07-02 | Hamman Anne Lenoir | Director | Buy | 1,342 | $18,748 |
| 2026-06-02 | DeWalch D Mark | Director | Buy | 36,363 | $490,173 |
| 2026-06-02 | DeWalch D Mark | Director | Buy | 36,363 | $495,264 |
| 2026-05-28 | DeWalch D Mark | Director | Buy | 37,650 | $497,356 |
| 2026-05-14 | Carter Thomas L Jr | Executive Chairman | Buy | 1,120 | $15,120 |
| 2026-05-13 | Longmaid Ashley J | Director | Sell | 11,128 | $149,672 |
| 2026-05-12 | Carter Thomas L Jr | Executive Chairman | Buy | 23,604 | $314,405 |
| 2026-05-12 | Carter Thomas L Jr | Executive Chairman | Buy | 25,000 | $336,750 |
| 2026-05-12 | Carter Thomas L Jr | Executive Chairman | Buy | 19,154 | $258,196 |
| 2026-05-06 | Putman Luke Stevens | SVP, General Counsel, and Sec | Sell | 30,276 | $461,709 |
| 2026-05-06 | Putman Luke Stevens | SVP, General Counsel, and Sec | Sell | 29,386 | $404,058 |
| 2026-05-06 | Putman Luke Stevens | SVP, General Counsel, and Sec | Sell | 29,386 | $424,628 |
| 2026-04-07 | Putman Luke Stevens | SVP, General Counsel, and Sec | Sell | 29,386 | $424,628 |
| 2026-04-06 | Hamman Anne Lenoir | Director | Buy | 473 | $7,152 |
| 2026-04-06 | Kyle Jerry V. Jr. | Director | Buy | 1,240 | $18,749 |
| 2026-04-06 | Stuart Alexander D. | Director | Buy | 1,570 | $23,738 |
| 2026-04-06 | Randall William E. | Director | Buy | 1,488 | $22,499 |
Source: SEC Form 4 filings · as of 2026-08-19