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Insider Trading

Last Updated: 3 days, 20 hours ago

Dean Y Li has an estimated net worth of at least $15.5 million*, as of March 11, 2026. They own 102,270 shares of MRK stock. They have sold 93,789 shares of MRK stock since 2021, for an estimated $3.6 million.

Dean Y Li $MRK SEC Form 4 Insider Trading

Dean Y Li has filed a total of 2 insider trades in $MRK since 2021. Their most recent trade was a sale of 15,087 shares, made on Feb 04, 2026. Their largest trade was a sale of 15,087 shares, made on Feb 04, 2026. We estimate that they now own 102,270 shares of $MRK, worth an estimated $11.9 million.



Insider Trading at $MRK

There have been a total of 108 insider trades reported at $MRK since 2021, with 18,241 shares purchased and 5.4 million shares sold. The most active insider traders in $MRK stock have been Kenneth C Frazier, Steven Mizell, and Joseph Romanelli. The most recent trade was a sale of 10,000 shares reported by Chirfi Guindo (Chief Marketing Officer), made on Feb 12, 2026.



History of Insider Stock Trades by Dean Y Li

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
MRK logo MRK Sale 15,087 Feb 04, 2026 Feb. 6, 2026, 5:12 p.m.
MRK logo MRK Sale 14,702 Feb 09, 2024 Feb. 12, 2024, 5:03 p.m.
RXRX logo RXRX Sale 28,038 Jan 09, 2024 Jan. 11, 2024, 7:51 p.m.
RXRX logo RXRX Sale 962 Jan 09, 2024 Jan. 11, 2024, 7:51 p.m.
RXRX logo RXRX Sale 14,900 Dec 07, 2021 Dec. 9, 2021, 10:21 p.m.
RXRX logo RXRX Sale 1,000 Dec 07, 2021 Dec. 9, 2021, 10:21 p.m.
RXRX logo RXRX Sale 13,474 Nov 19, 2021 Nov. 19, 2021, 6:40 p.m.
RXRX logo RXRX Sale 5,626 Nov 17, 2021 Nov. 19, 2021, 6:40 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.