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Insider Trading

David Michael Williams Net Worth

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Last Updated: 4 hours ago

David Michael Williams has an estimated net worth of at least $14.3 million*, as of today. They own 36,316 shares of MRK stock. They have sold 73,912 shares of MRK stock since 2021, for an estimated $8.8 million.

David Michael Williams $MRK SEC Form 4 Insider Trading

David Michael Williams has filed a total of 7 insider trades in $MRK since 2021. Their most recent trade was a sale of 4,600 shares, made on Aug 05, 2026. Their largest trade was a sale of 34,705 shares, made on Aug 05, 2026. We estimate that they now own 36,316 shares of $MRK, worth an estimated $5.4 million.



Insider Trading at $MRK

There have been a total of 125 insider trades reported at $MRK since 2021, with 18,241 shares purchased and 5.7 million shares sold. The most active insider traders in $MRK stock have been Kenneth C Frazier, Richard R. Deluca, and Steven Mizell. The most recent trade was a sale of 10,000 shares reported by Chirfi Guindo (EVP, Access, Policy & Comms), made on Aug 13, 2026.



History of Insider Stock Trades by David Michael Williams

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
MRK logo MRK Sale 4,600 Aug 05, 2026 Aug. 7, 2026, 4:19 p.m.
MRK logo MRK Sale 34,705 Aug 05, 2026 Aug. 7, 2026, 4:19 p.m.
MRK logo MRK Sale 13,542 Aug 05, 2026 Aug. 7, 2026, 4:19 p.m.
MRK logo MRK Sale 5,000 Feb 06, 2026 Feb. 6, 2026, 5:20 p.m.
MRK logo MRK Sale 8,614 Nov 03, 2025 Nov. 4, 2025, 5:02 p.m.
MRK logo MRK Sale 6,000 Feb 13, 2025 Feb. 13, 2025, 5:01 p.m.
MRK logo MRK Sale 1,451 Feb 07, 2024 Feb. 8, 2024, 5:04 p.m.




$MRK 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.