Carter Thomas L Jr
Executive buyerDirector, Executive Chairman · Black Stone Minerals, L.P.
Every open-market stock purchase Carter Thomas L Jr has reported to the SEC on Form 4 that met our signal bar, parsed straight from the filings. This page tracks where those buys landed inside insider clusters and how the prices paid compare to where the stock trades now.
Where the buys stand today
- BSM+3.8% vs price paidBlack Stone Minerals, L.P.
14 purchases totalling $4.5M at an average of $13.04 per share; the stock last traded at $13.54. See all insider buying in BSM →
Avg price paid$13.04Latest price$13.54Market cap$2.9B
Cluster participation
Qualifying buys grouped with other insiders buying the same stock — the pattern this site exists to catch.
All reported buys
| Date | Ticker | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| May 12, 2026 | BSMcluster | 19,154 | $13.48 | $258.1K | SEC ↗ |
| May 11, 2026 | BSMcluster | 25,000 | $13.47 | $336.9K | SEC ↗ |
| May 8, 2026 | BSMcluster | 23,604 | $13.32 | $314.4K | SEC ↗ |
| Sep 12, 2025 | 14,000 | $12.59 | $176.3K | SEC ↗ | |
| Sep 10, 2025 | 10,536 | $12.32 | $129.8K | SEC ↗ | |
| Sep 8, 2025 | 13,527 | $11.90 | $161.0K | SEC ↗ | |
| Aug 20, 2025 | 21,000 | $12.03 | $252.6K | SEC ↗ | |
| Aug 19, 2025 | 20,000 | $11.97 | $239.4K | SEC ↗ | |
| Aug 12, 2025 | 9,200 | $12.36 | $113.7K | SEC ↗ | |
| Aug 11, 2025 | 25,000 | $12.10 | $302.5K | SEC ↗ | |
| Aug 8, 2025 | 27,500 | $12.20 | $335.5K | SEC ↗ | |
| Aug 7, 2025 | 19,710 | $12.24 | $241.3K | SEC ↗ | |
| May 21, 2025 | 14,500 | $13.52 | $196.0K | SEC ↗ | |
| Sep 6, 2024 | BSMcluster | 100,000 | $14.12 | $1.4M | SEC ↗ |
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About this data
Figures are parsed from Carter Thomas L Jr's Form 4 filings on SEC EDGAR (CIK 1319960) and cover open-market purchases (transaction code P) — grants, option exercises, and sales are excluded, which is why totals here can differ from raw filing counts. Every row links to its source document.
This page is informational and reflects public filing data. It is not investment advice.