| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director
1 company
Dewalch D Mark is a Director at BSM. Recent filings cover 14 purchases and 0 sales. Those positions are worth an estimated $9.0M at current prices.
Our model assigns Dewalch D Mark a below-average insider score of 39/100, based on 5 past trades. Over a 12-month horizon, 0.0% of those trades were profitable, with an average 12-month return of -9.2%.
Dewalch D Mark's largest disclosed position is in BSM as Director, worth about $9.0M. Net of sales, the recent Form 4 record there shows accumulation of 200,166 shares.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2026 | BSM Black Stone Minerals, L.P. | Director | Buy | 72,726 | $13.55 | $985,353.67 | +6.3% | - | - | |
| Aug 15, 2024 | BSM Black Stone Minerals, L.P. | Director | Buy | 34,200 | $14.62 | $500,004.00 | +10.6% | +4.0% | -15.7% | |
| Feb 26, 2024 | BSM Black Stone Minerals, L.P. | Director | Buy | 3,250 | $15.47 | $50,277.18 | +1.0% | +4.2% | -2.3% | |
| Nov 17, 2023 | BSM Black Stone Minerals, L.P. | Director | Buy | 44,000 | $17.32 | $761,951.64 | +8.1% | -12.3% | -12.9% | |
| Mar 6, 2023 | BSM Black Stone Minerals, L.P. | Director | Buy | 34,250 | $15.85 | $542,843.46 | +14.3% | +1.5% | -2.8% | |
| Jun 10, 2019 | BSM Black Stone Minerals, L.P. | Director | Buy | 5,350 | $16.44 | $87,954.00 | +15.1% | - | - | |
| Nov 16, 2018 | BSM Black Stone Minerals, L.P. | Director | Buy | 1,175 | $17.06 | $20,044.09 | +24.4% | - | - | |
| Jul 30, 2015 | BSM Black Stone Minerals, L.P. | Director | Buy | 15 | $14.56 | $218.40 | +0.3% | - | - | |
| May 6, 2015 | BSM Black Stone Minerals, L.P. | Director | Buy | 5,200 | $19.00 | $98,800.00 | +2.0% | - | - |