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

$7.93M

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.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
MSA Director 49,126 $159.89 $7.85M -$82.81M 76 2026-05-14
KMTw Director 76,992 $962.5K 11 2026-02-19
OI Director 8,045 $9.17 $73.8K $0 6 2019-08-16
EQT Director $51.94 $0 2 2019-01-03

Recent Filings · Page 11 of 14

135 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2013-05-24 Mixed +5,582 -$21
2013-04-02 Mixed +6,622 -$280.9K
2013-03-12 Tax (F) −5,351 -$262.4K
2013-02-21 Grant (A) +11,468 $0
2012-12-26 Gift (G) −1,000 $0
2012-12-26 Gift (G) −1,000 $0
2012-06-07 Sell (S) −25,563 -$1.01M
2012-06-05 Mixed +34,435 $838.0K
2012-06-05 Tax (F) −2,562 -$102.4K
2012-03-22 Tax (F) −4,358 -$176.0K
Showing 101110 of 135
Page 11 of 14
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.