Carter Thomas L Jr 4

What Happened

• Carter Thomas L. Jr., Executive Chairman and Director of Black Stone Minerals, L.P. (BSM), purchased 1,120 common units on 2026-05-13. The weighted average price reported was $13.50 per unit, for a total transaction value of approximately $15,120. This was an open‑market purchase (transaction code P), which is a purchase rather than a sale.

Key Details

• Transaction date: 2026-05-13; Form 4 filed: 2026-05-14 (filed timely).
• Shares purchased: 1,120 common units at a weighted average price of $13.50; total ≈ $15,120.
• Footnote: The reported price is a weighted average; purchases occurred at prices ranging $13.49–$13.50. The filer will provide a breakdown of units bought at each price upon request (Footnote F1).
• Shares owned after transaction: Not specified in the filing.
• Transaction code: P = Purchase.

Context

• This was a straightforward open‑market purchase by an executive. Purchases are often more informative than routine sales, but the filing does not explain motivation. The dollar amount here is modest relative to many insider buys; no derivative exercises, gifts, or tax‑withholding arrangements were reported.