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Insider ActivityBSM
DeWalch D Mark, Director at Black Stone Minerals, L.P., bought $497K of BSM
Updated Jun 22, 2026
DeWalch D Mark
Director
Black Stone Minerals, L.P. ·
$BSM
Transaction Details
| Insider | DeWalch D Mark |
|---|---|
| Title | Director |
| Company | Black Stone Minerals, L.P. |
| Ticker | BSM |
| Transaction Type | Purchase |
| Transaction Date | 2026-05-28 |
| Shares Traded | 37,650 |
| Price Per Share | $13.2096 |
| Total Value | $497K |
| Filed Date | 2026-05-28 |
| Accession Number | 0001638259-26-000008 |
Ownership Context
| Shares Owned After Transaction | 431,495 |
|---|---|
| Ownership Type | Direct |
SEC Filing
Accession: 0001638259-26-000008
Other Insider Trades — BSM
| Insider | Title | Action | Value | Date |
|---|---|---|---|---|
| DeWalch D Mark | Director | bought | $495K | 2026-06-01 |
| DeWalch D Mark | Director | bought | $490K | 2026-05-29 |
| Carter Thomas L Jr | Executive Chairman, Director | bought | $15K | 2026-05-13 |
| Longmaid Ashley J | Director | sold | $150K | 2026-05-12 |
| Carter Thomas L Jr | Executive Chairman, Director | bought | $258K | 2026-05-12 |
| Carter Thomas L Jr | Executive Chairman, Director | bought | $337K | 2026-05-11 |
| Carter Thomas L Jr | Executive Chairman, Director | bought | $314K | 2026-05-08 |
| Putman Luke Stevens | SVP, General Counsel, and Sec | sold | $404K | 2026-05-05 |
| Putman Luke Stevens | SVP, General Counsel, and Sec | sold | $425K | 2026-04-06 |
| Putman Luke Stevens | SVP, General Counsel, and Sec | sold | $425K | 2026-04-06 |
Other Trades by DeWalch D Mark
| Ticker | Company | Action | Value | Date |
|---|---|---|---|---|
| BSM | Black Stone Minerals, L.P. | bought | $495K | 2026-06-01 |
| BSM | Black Stone Minerals, L.P. | bought | $490K | 2026-05-29 |
| BSM | Black Stone Minerals, L.P. | traded | $19K | 2026-04-02 |
Full Ticker Profile
View all insider trades, dark pool activity, congressional filings, and the Whisper Score for BSM — Black Stone Minerals, L.P. →
Whisper Score — BSM
50.0
Active Discussion
Current Whisper Score
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Data sourced from SEC Form 4 insider trading filings. Transaction details are as reported to the Securities and Exchange Commission. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of SEC filings.
Last updated: June 22, 2026 at 07:07 UTC