William N. Mathis
CIK 1640004 · last filed 2025-10-07
"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
$7.75M
Companies
1
Total Filings
56
Lifetime Open-Market Net
$401.5K
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 | 541,774 | $14.30 | $7.75M | $401.5K | 56 | 2025-10-07 |
Recent Filings · Page 6 of 6
56 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2016-07-12 | BSM | Grant (A) | +1,370 | $21.2K | EDGAR |
| 2016-04-12 | BSM | Mixed | +1,516 | $21.2K | EDGAR |
| 2016-03-16 | BSM | Buy (P) | +11,410 | $156.4K | EDGAR |
| 2016-03-11 | BSM | Buy (P) | +3,979 | $53.7K | EDGAR |
| 2016-01-14 | BSM | Grant (A) | +12,368 | $0 | EDGAR |
| 2015-05-08 | BSM | Mixed | +1,229,154 | $0 | EDGAR |
Showing 51–56 of 56
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Page 6 of 6
Form 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.