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Insider Trading

William M Lambert Net Worth

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Last Updated: 4 days, 17 hours ago

William M Lambert has an estimated net worth of at least $31.7 million*, as of July 9, 2025. They own 59,511 shares of MSA stock. They have sold 151,686 shares of MSA stock since 2021, for an estimated $21.2 million.

William M Lambert $MSA SEC Form 4 Insider Trading

William M Lambert has filed a total of 11 insider trades in $MSA since 2021. Their most recent trade was a sale of 33,885 shares, made on Aug 10, 2022. Their largest trade was a sale of 54,690 shares, made on Nov 19, 2021. We estimate that they now own 59,511 shares of $MSA, worth an estimated $10.5 million.



Insider Trading at $MSA

There have been a total of 51 insider trades reported at $MSA since 2021, with 0 shares purchased and 320,421 shares sold. The most active insider traders in $MSA stock have been Nishan J. Vartanian, Jonathan D. Buck, and Nishan J. Vartanian. The most recent trade was a sale of 30,000 shares reported by Nishan J. Vartanian (None), made on May 13, 2025.



History of Insider Stock Trades by William M Lambert

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
MSA logo MSA Sale 33,885 Aug 10, 2022 Aug. 11, 2022, 10:45 a.m.
MSA logo MSA Sale 551 Aug 09, 2022 Aug. 11, 2022, 10:45 a.m.
MSA logo MSA Sale 28,216 Aug 09, 2022 Aug. 11, 2022, 10:45 a.m.
MSA logo MSA Sale 700 Aug 10, 2022 Aug. 11, 2022, 10:45 a.m.
MSA logo MSA Sale 8,922 Aug 10, 2022 Aug. 11, 2022, 10:45 a.m.
MSA logo MSA Sale 9,642 Aug 10, 2022 Aug. 11, 2022, 10:45 a.m.
KMT logo KMT Purchase 36,698 May 04, 2022 May 5, 2022, 11:18 a.m.
MSA logo MSA Sale 54,690 Nov 19, 2021 Nov. 23, 2021, 10:55 a.m.
MSA logo MSA Sale 500 Nov 22, 2021 Nov. 23, 2021, 10:55 a.m.
MSA logo MSA Sale 1,620 Nov 22, 2021 Nov. 23, 2021, 10:55 a.m.
MSA logo MSA Sale 2,960 Nov 22, 2021 Nov. 23, 2021, 10:55 a.m.
MSA logo MSA Sale 10,000 Sep 16, 2021 Sept. 15, 2021, 8 p.m.




$MSA Executives and Stock Owners with Insider Trades



*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.