D Mark DeWalch
CIK 1638259 · last filed 2026-06-02
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$14.34M
Companies
1
Total Filings
34
Lifetime Open-Market Net
$3.54M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BSM | Director | 1,026,380 | $13.97 | $14.34M | $3.54M | 34 | 2026-06-02 |
Recent Filings · Page 3 of 4
34 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-01-13 | BSM | Grant (A) | +15,414 | $0 | EDGAR |
| 2020-01-15 | BSM | Grant (A) | +13,389 | $0 | EDGAR |
| 2019-06-12 | BSM | Buy (P) | +5,350 | $88.0K | EDGAR |
| 2019-05-29 | BSM | Conv (C) | +99,133 | $0 | EDGAR |
| 2019-01-14 | BSM | Grant (A) | +10,842 | $0 | EDGAR |
| 2018-11-19 | BSM | Buy (P) | +1,175 | $20.0K | EDGAR |
| 2018-04-09 | BSM | Conv (C) | +607 | $0 | EDGAR |
| 2018-01-16 | BSM | Grant (A) | +9,536 | $0 | EDGAR |
| 2017-05-01 | BSM | Conv (C) | +517 | $0 | EDGAR |
| 2017-01-12 | BSM | Grant (A) | +9,095 | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.