Mark N. Tompkins Net Worth
Track Major Insider Updates On X/TwitterLast Updated: 3 days, 16 hours ago
Mark N. Tompkins has an estimated net worth of at least $60.5 million*, as of Aug. 27, 2025. They own 2.9 million shares of ALMU stock. They have sold 153,316 shares of ALMU stock since 2021, for an estimated $-249,999.
Mark N. Tompkins $ALMU SEC Form 4 Insider Trading
Mark N. Tompkins has filed a total of 1 insider trades in $ALMU since 2021. Their most recent trade was a purchase of 83,333 shares, made on Dec 22, 2022. Their largest trade was a purchase of 83,333 shares, made on Dec 22, 2022. We estimate that they now own 2.9 million shares of $ALMU, worth an estimated $60.7 million.
Insider Trading at $ALMU
There have been a total of 2 insider trades reported at $ALMU since 2021, with 83,333 shares purchased and 150,000 shares sold. The most active insider traders in $ALMU stock have been Jonathan Klamkin, , and . The most recent trade was a sale of 150,000 shares reported by Jonathan Klamkin (Chief Executive Officer), made on Aug 14, 2025.
History of Insider Stock Trades by Mark N. Tompkins
| Company Ticker | Purchase / Sale | Shares | Date | Disclosed (EST) |
|---|---|---|---|---|
None
|
Sale | 50,000 | Aug 26, 2025 | Aug. 28, 2025, 7:03 p.m. |
|
None
|
Sale | 25,000 | Aug 26, 2025 | Aug. 28, 2025, 7:01 p.m. |
|
None
|
Sale | 25,000 | Jul 16, 2025 | July 18, 2025, 6:08 p.m. |
ALMU
|
Purchase | 83,333 | Dec 22, 2022 | Jan. 13, 2023, 5:38 p.m. |
|
None
|
Purchase | 250,000 | Nov 12, 2021 | Nov. 16, 2021, 9 a.m. |
NONE
|
Purchase | 107,500 | Jun 25, 2021 | June 28, 2021, 8 p.m. |
|
NONE
|
Purchase | 250,000 | Jun 22, 2021 | June 28, 2021, 8 p.m. |
AMST
|
Sale | 17,494 | May 28, 2021 | June 1, 2021, 8 p.m. |
|
AMST
|
Sale | 35,822 | Jun 01, 2021 | June 1, 2021, 8 p.m. |
$ALMU Executives and Stock Owners with Insider Trades
-
Jonathan Klamkin, Chief Executive Officer
*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.