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Mark N. Tompkins Insider Profile
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Mark N. Tompkins, Ten Percent Owner at Akoustis Technologies, holds 2.32M shares in Aeluma, Inc. (Ticker: ALMU), holds 2.04M shares in Amesite (Ticker: AMST), holds 2.17M shares in Akoustis Technologies (Ticker: AKTSQ). Most recently, Mark N. Tompkins Sold ― shares of Aeluma, Inc. on Oct 21, 2025 for an estimated value of $1.29M.
Mark N. Tompkins Akoustis Technologies (AKTSQ)Ten Percent Owner
Akoustis Technologies (AKTSQ)
Ten Percent Owner
Ranked #413 out of 104,058 Corporate Insiders
Profitable Transactions
24 out of 33 Profitable Transactions
Average Return
+40.50%
Average return per transaction
Time Frame
Compare to
Insider Holdings
Insider Roles
Roles that Mark N. Tompkins holds in companies
Most Profitable Insider Trade
The most profitable trade made by Mark N. Tompkins
Mark N. Tompkins's Trading History
Akoustis Technologies
Dec 29, 2017
Ten Percent Owner
Informative Sell
187.59K
$26.09K
Amesite
Jun 02, 2021
Ten Percent Owner
Informative Sell
130.83K
$6.74M
Aeluma, Inc.
Oct 21, 2025
Ten Percent Owner
Informative Sell
1.29M
$35.33M
List of latest transactions for each holding click on a transaction to see Mark N. Tompkins's performance on stock
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Mark N. Tompkins insider profile FAQ
What is the percentage of profitable transactions made by Mark N. Tompkins?
The percentage of profitable transactions made by Mark N. Tompkins is 73%.
What is the average return per transaction made by Mark N. Tompkins?
The average return per transaction made by Mark N. Tompkins is 40.50%.
What stocks does Mark N. Tompkins hold?
Mark N. Tompkins holds: AKTSQ, AMST, ALMU stocks.
What was Mark N. Tompkins’s latest transaction?
Mark N. Tompkins latest transaction was an Informative Sell of $1.29M.
What was Mark N. Tompkins's most profitable transaction?
Mark N. Tompkins’s most profitable transaction was an Informative Buy of ALMU stock on March 31, 2025. The return on the trade was 133.70%.
What is Mark N. Tompkins's role in Akoustis Technologies?
Mark N. Tompkins's role in Akoustis Technologies is Ten Percent Owner.
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