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Insider Trading

Mark William Triplett Net Worth

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Last Updated: 5 days, 12 hours ago

Mark William Triplett has an estimated net worth of at least $10.6 million*, as of Oct. 15, 2025. They own 323,946 shares of STEM stock. They have sold 35,000 shares of STEM stock since 2021, for an estimated $650,129.

Mark William Triplett $STEM SEC Form 4 Insider Trading

Mark William Triplett has filed a total of 10 insider trades in $STEM since 2021. Their most recent trade was a sale of 5,000 shares, made on Jan 31, 2022. Their largest trade was a sale of 5,000 shares, made on Jan 31, 2022. We estimate that they now own 323,946 shares of $STEM, worth an estimated $9.9 million.



Insider Trading at $STEM

There have been a total of 170 insider trades reported at $STEM since 2021, with 387,300 shares purchased and 3.9 million shares sold. The most active insider traders in $STEM stock have been John Eugene Carrington, William John Bush, and Larsh Johnson. The most recent trade was a sale of 20,823 shares reported by Matthew Tappin (President, Software Division), made on Jun 16, 2025.



History of Insider Stock Trades by Mark William Triplett

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
STEM logo STEM Sale 5,000 Jan 31, 2022 Feb. 2, 2022, 9:47 p.m.
STEM logo STEM Sale 5,000 Jan 18, 2022 Jan. 20, 2022, 7:42 p.m.
STEM logo STEM Sale 5,000 Jan 03, 2022 Jan. 4, 2022, 8 p.m.
STEM logo STEM Sale 5,000 Dec 20, 2021 Dec. 22, 2021, 7:58 p.m.
STEM logo STEM Sale 100 Dec 06, 2021 Dec. 8, 2021, 6:37 p.m.
STEM logo STEM Sale 940 Dec 06, 2021 Dec. 8, 2021, 6:37 p.m.
STEM logo STEM Sale 3,960 Dec 06, 2021 Dec. 8, 2021, 6:37 p.m.
STEM logo STEM Sale 500 Nov 22, 2021 Nov. 24, 2021, 6:39 p.m.
STEM logo STEM Sale 4,500 Nov 22, 2021 Nov. 24, 2021, 6:39 p.m.
STEM logo STEM Sale 5,000 Nov 08, 2021 Nov. 8, 2021, 8 p.m.




$STEM 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.