Form4.ai tracks every SEC insider trade in real time. See every BSM insider filing with a free account — no card.
See every BSM insider filing — free account, no card.
Free accountBlack Stone Minerals, L.P. (BSM) has 7 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: Oct. 5, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 5, 2026 SEC filing | Stuart Alexander D. Director | Grant / award | $23,743 | — |
| Oct 5, 2026 SEC filing | Kyle Jerry V. Jr. Director | Grant / award | $18,745 | — |
| Oct 5, 2026 SEC filing | Randall William E. Director | Grant / award | $22,497 | — |
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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.