DeWalch D Mark 4

What Happened
Director D. Mark DeWalch purchased a total of 72,726 common units of Black Stone Minerals, L.P. (BSM) in two open‑market transactions (code P). On 2026-05-29 he acquired 36,363 units at a weighted average price reported as $13.48 (≈ $490,028). On 2026-06-01 he acquired another 36,363 units at a weighted average price reported as $13.62 (≈ $495,326). These purchases total approximately $985,354 and are outright buys (a net purchase).

Key Details

• Transaction dates/prices: 2026-05-29 — 36,363 units @ $13.48 (weighted avg; see footnote F1); 2026-06-01 — 36,363 units @ $13.62 (weighted avg; see footnote F2).
• Total units bought: 72,726; approximate total value: $985,354.
• Shares owned after transaction: Not specified in the filing.
• Footnotes: F1 and F2 note the reported prices are weighted averages across multiple trades. F1 prices ranged $13.42–$13.56; F2 ranged $13.54–$13.695. The filer will provide a breakdown on request.
• Filing: Form 4 filed 2026-06-02 reporting these transactions; no late‑filing flag is indicated.

Context
These were open‑market purchases (code P), not grants or option exercises. Purchases by directors are often watched by investors as a potential positive signal, but this summary is factual only and does not speculate on motivation.