D. Mark DeWalch
Known title: DirectorCIK: 0001638259
D. Mark DeWalch's purchase track record
How the stock did after each of D. Mark DeWalch's open-market purchases, measured from the purchase date. Several fills within a week count as one purchase.
Purchases measured
4
of 5 since March 6, 2023
Stock higher 6 months later
75%
3 months: 80%
Median 6-month return
+3.4%
3 months: +6.6%
Beat the S&P 500
25%
median -7.1% vs. index
| Purchase | Stock | Amount | 3 months | 6 months | S&P 500, 6 mo. |
|---|---|---|---|---|---|
| 5/28/2026 | BSM | $1.48M | +12.2% | pending | — |
| 8/15/2024 | BSM | $500K | +7.9% | +6.4% | +10.3% |
| 2/26/2024 | BSM | $50K | +6.6% | +0.5% | +10.8% |
| 11/16/2023 | BSM | $762K | -8.7% | -2.9% | +17.5% |
| 3/6/2023 | BSM | $543K | +4.6% | +17.2% | +11.1% |
Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.
Associated companies
this person other insiders at BSM
Transaction History
| BSM | ▲ Buy | Grant | 1,342 | $19K | 7/2/2026 | View on chart |
| BSM | ▲ Buy | Open Market | 36,363 | $495K | 6/1/2026 | View on chart |
| BSM | ▲ Buy | Open Market | 36,363 | $490K | 5/29/2026 | View on chart |
| BSM | ▲ Buy | Open Market | 37,650 | $497K | 5/28/2026 | View on chart |
| BSM | ▲ Buy | Grant | 1,240 | $19K | 4/2/2026 | View on chart |
| BSM | ▲ Buy | Grant | 14,255 | $0 | 1/13/2026 | View on chart |
| BSM | ▲ Buy | Grant | 1,410 | $19K | 1/2/2026 | View on chart |
| BSM | ▲ Buy | Grant | 1,426 | $19K | 10/3/2025 | View on chart |
| BSM | ▲ Buy | Grant | 1,433 | $19K | 7/3/2025 | View on chart |
| BSM | ▲ Buy | Grant | 1,227 | $19K | 4/4/2025 | View on chart |
| BSM | ▲ Buy | Grant | 13,324 | $0 | 1/13/2025 | View on chart |
| BSM | ▲ Buy | Grant | 1,284 | $19K | 1/3/2025 | View on chart |
| BSM | ▲ Buy | Grant | 1,241 | $19K | 10/4/2024 | View on chart |
| BSM | ▲ Buy | Open Market | 34,200 | $500K | 8/15/2024 | View on chart |
| BSM | ▲ Buy | Grant | 1,196 | $19K | 7/5/2024 | View on chart |
| BSM | ▲ Buy | Grant | 1,173 | $19K | 4/5/2024 | View on chart |
| BSM | ▲ Buy | Open Market | 3,250 | $50K | 2/26/2024 | View on chart |
| BSM | ▲ Buy | Grant | 12,307 | $0 | 1/11/2024 | View on chart |
| BSM | ▲ Buy | Open Market | 22,297 | $390K | 11/17/2023 | View on chart |
| BSM | ▲ Buy | Open Market | 21,703 | $372K | 11/16/2023 | View on chart |
| BSM | ▲ Buy | Open Market | 31,150 | $494K | 3/6/2023 | View on chart |
| BSM | ▲ Buy | Open Market | 3,100 | $49K | 3/6/2023 | View on chart |
| BSM | ▲ Buy | Grant | 12,539 | $0 | 1/11/2023 | View on chart |
| BSM | ▲ Buy | Grant | 14,115 | $0 | 1/11/2022 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 11, 2026
Black Stone Minerals Anticipates Q3 Beat on Higher Oil, Gas Volumes
RBC analysts expect Black Stone Minerals to beat its third‑quarter earnings as oil and gas production volumes rise. The company also reported that its dividend payout has increased again, reflecting stronger cash flow. These developments suggest improved operating performance and a more attractive return for shareholders.
Black Stone Minerals Anticipates Q3 Beat on Higher Oil, Gas Volumes. RBC analysts expect Black Stone Minerals to beat its third‑quarter earnings as oil and gas production volumes rise. The company also reported that its dividend payout has increased again, reflecting stronger cash flow. These developments suggest improved operating performance and a more attractive return for shareholders.