WILLIAM M LAMBERT
CIK 1187330 · Chairman · last filed 2026-05-14
"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
$12.05M
Companies
4
Total Filings
135
Lifetime Open-Market Net
-$81.85M
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.
Recent Filings · Page 8 of 14
135 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 |
|---|---|---|---|---|---|
| 2017-05-02 | MSA | Mixed | — | -$580.0K | EDGAR |
| 2017-03-15 | MSA | Mixed | +1,509 | $11.9K | EDGAR |
| 2017-03-14 | MSA | Mixed | — | -$27.5K | EDGAR |
| 2017-03-14 | MSA | Exer (M) | +4,010 | $71.5K | EDGAR |
| 2017-03-10 | MSA | Mixed | +10,545 | -$1.05M | EDGAR |
| 2017-03-09 | MSA | Sell (S) | −500 | -$35.5K | EDGAR |
| 2017-03-08 | MSA | Mixed | +97,908 | $42.1K | EDGAR |
| 2017-03-02 | MSA | Grant (A) | +9,603 | $0 | EDGAR |
| 2016-08-10 | MSA | Gift (G) | −2,000 | $0 | EDGAR |
| 2016-08-03 | MSA | Mixed | +3,659 | -$1.06M | EDGAR |
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.