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 4 of 4
34 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2016-04-12 | BSM | Conv (C) | +517 | $0 | EDGAR |
| 2016-01-14 | BSM | Grant (A) | +12,368 | $0 | EDGAR |
| 2015-08-03 | BSM | Buy (P) | +15 | $218 | EDGAR |
| 2015-05-08 | BSM | Mixed | +87,816 | $98.8K | EDGAR |
Showing 31–34 of 34
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Page 4 of 4
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.