Mark N. Tompkins Net Worth
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Mark N. Tompkins has an estimated net worth of at least $48.4 million*, as of Oct. 29, 2025. They own 2.7 million shares of ALMU stock. They have sold 898,741 shares of ALMU stock since 2021, for an estimated $10.8 million.
Mark N. Tompkins $ALMU SEC Form 4 Insider Trading
Mark N. Tompkins has filed a total of 42 insider trades in $ALMU since 2021. Their most recent trade was a sale of 10,861 shares, made on Dec 09, 2025. Their largest trade was a purchase of 83,333 shares, made on Dec 22, 2022. We estimate that they now own 2.7 million shares of $ALMU, worth an estimated $37.6 million.
Insider Trading at $ALMU
There have been a total of 43 insider trades reported at $ALMU since 2021, with 83,333 shares purchased and 895,425 shares sold. The most active insider traders in $ALMU stock have been Jonathan Klamkin, , and . The most recent trade was a sale of 10,861 shares reported by Mark N. Tompkins (None), made on Dec 09, 2025.
History of Insider Stock Trades by Mark N. Tompkins
| Company Ticker | Purchase / Sale | Shares | Date | Disclosed (EST) |
|---|---|---|---|---|
ALMU
|
Sale | 10,861 | Dec 09, 2025 | Dec. 11, 2025, 10 p.m. |
|
ALMU
|
Sale | 20,000 | Dec 10, 2025 | Dec. 11, 2025, 10 p.m. |
|
ALMU
|
Sale | 19,139 | Dec 09, 2025 | Dec. 11, 2025, 10 p.m. |
|
ALMU
|
Sale | 1,610 | Dec 05, 2025 | Dec. 9, 2025, 7:10 a.m. |
|
ALMU
|
Sale | 28,390 | Dec 05, 2025 | Dec. 9, 2025, 7:10 a.m. |
|
ALMU
|
Sale | 11,500 | Dec 04, 2025 | Dec. 9, 2025, 7:10 a.m. |
|
ALMU
|
Sale | 18,500 | Dec 04, 2025 | Dec. 9, 2025, 7:10 a.m. |
|
ALMU
|
Sale | 988 | Dec 08, 2025 | Dec. 9, 2025, 7:10 a.m. |
|
ALMU
|
Sale | 39,012 | Dec 08, 2025 | Dec. 9, 2025, 7:10 a.m. |
|
ALMU
|
Sale | 5,913 | Oct 17, 2025 | Oct. 21, 2025, 4:56 p.m. |
|
ALMU
|
Sale | 37,500 | Oct 20, 2025 | Oct. 21, 2025, 4:56 p.m. |
|
ALMU
|
Sale | 743 | Oct 17, 2025 | Oct. 21, 2025, 4:56 p.m. |
|
ALMU
|
Sale | 33,344 | Oct 17, 2025 | Oct. 21, 2025, 4:56 p.m. |
|
ALMU
|
Sale | 15,853 | Oct 15, 2025 | Oct. 17, 2025, 9 p.m. |
|
ALMU
|
Sale | 810 | Oct 16, 2025 | Oct. 17, 2025, 9 p.m. |
|
ALMU
|
Sale | 6,650 | Oct 16, 2025 | Oct. 17, 2025, 9 p.m. |
|
ALMU
|
Sale | 17,540 | Oct 16, 2025 | Oct. 17, 2025, 9 p.m. |
|
ALMU
|
Sale | 24,147 | Oct 15, 2025 | Oct. 17, 2025, 9 p.m. |
|
ALMU
|
Sale | 36,855 | Oct 14, 2025 | Oct. 14, 2025, 9:59 p.m. |
|
ALMU
|
Sale | 30,587 | Oct 10, 2025 | Oct. 14, 2025, 9:59 p.m. |
|
ALMU
|
Sale | 4,413 | Oct 10, 2025 | Oct. 14, 2025, 9:59 p.m. |
|
ALMU
|
Sale | 35,031 | Oct 13, 2025 | Oct. 14, 2025, 9:59 p.m. |
|
ALMU
|
Sale | 300 | Oct 13, 2025 | Oct. 14, 2025, 9:59 p.m. |
|
ALMU
|
Sale | 35,908 | Oct 09, 2025 | Oct. 9, 2025, 9:30 p.m. |
|
ALMU
|
Sale | 700 | Oct 08, 2025 | Oct. 9, 2025, 9:30 p.m. |
|
ALMU
|
Sale | 34,300 | Oct 08, 2025 | Oct. 9, 2025, 9:30 p.m. |
|
ALMU
|
Sale | 400 | Oct 07, 2025 | Oct. 9, 2025, 9:30 p.m. |
|
ALMU
|
Sale | 7,907 | Oct 07, 2025 | Oct. 9, 2025, 9:30 p.m. |
|
ALMU
|
Sale | 26,693 | Oct 07, 2025 | Oct. 9, 2025, 9:30 p.m. |
|
ALMU
|
Sale | 1,000 | Oct 09, 2025 | Oct. 9, 2025, 9:30 p.m. |
|
ALMU
|
Sale | 34,880 | Oct 02, 2025 | Oct. 6, 2025, 9:24 p.m. |
|
ALMU
|
Sale | 63,604 | Oct 06, 2025 | Oct. 6, 2025, 9:24 p.m. |
|
ALMU
|
Sale | 12,958 | Oct 03, 2025 | Oct. 6, 2025, 9:24 p.m. |
|
ALMU
|
Sale | 18,189 | Oct 03, 2025 | Oct. 6, 2025, 9:24 p.m. |
|
ALMU
|
Sale | 120 | Oct 02, 2025 | Oct. 6, 2025, 9:24 p.m. |
|
ALMU
|
Sale | 33,380 | Sep 30, 2025 | Oct. 2, 2025, 6:12 a.m. |
|
ALMU
|
Sale | 41,367 | Oct 01, 2025 | Oct. 2, 2025, 6:12 a.m. |
|
ALMU
|
Sale | 9,133 | Oct 01, 2025 | Oct. 2, 2025, 6:12 a.m. |
|
ALMU
|
Sale | 200 | Sep 30, 2025 | Oct. 2, 2025, 6:12 a.m. |
|
ALMU
|
Sale | 23,382 | Sep 29, 2025 | Oct. 2, 2025, 6:12 a.m. |
|
ALMU
|
Sale | 1,618 | Sep 29, 2025 | Oct. 2, 2025, 6:12 a.m. |
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
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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.