Black Stone Minerals, L.P. (BSM) has 8 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 1 sales totalling $28.1M. Most recent filing: Aug. 19, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
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| Aug. 19, 2026 filed Aug. 18, 2026 | Stuart Alexander D. Director | $0 | 15,900 | −1% | No | |
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| Aug. 10, 2026 filed Aug. 6, 2026 | Whitehead James Director | −$28,099,057 | 2,127,105 | −77% | No | |
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| Aug. 4, 2026 filed July 31, 2026 | Kyle Jerry V. Jr. Director | $0 | 7,665 | New | No | |
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| July 2, 2026 | DeWalch D Mark Director | $18,748 | 1,342 | +0% | No | |
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| July 2, 2026 | Randall William E. Director | $22,492 | 1,610 | +1% | No | |
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Showing the 5 most recent of 8 filings in the last 90 days.
Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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