Tompkins Mark N.
SEC Form 4 insider trading activity
Tompkins Mark N. has filed 14 SEC Form 4 filings (65 transaction rows) across 1 company, with disclosures dating back to 2025. 14 of those filings fall inside the rolling window. Most recent filing: Feb 5, 2026.
On the most recent filing, Tompkins Mark N. is listed as Insider at Aeluma, Inc. Inside the rolling window, Tompkins Mark N. reported no open-market purchases and 34 open-market sales totaling $19.8M in ALMU. The largest disclosed transaction in the window is a sale of 63,604 ALMU shares on Oct 6, 2025, worth $1.2M.
Companies traded
Other insiders at ALMU
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$19.8M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| ALMU | Former 10% Owner | Sale | 34,500 | $508K | Feb 5 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 32,500 | $547K | Feb 2 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 25,000 | $398K | Feb 2 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 37,500 | $590K | Feb 2 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 30,000 | $621K | Jan 22 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 45,000 | $847K | Jan 22 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 30,000 | $542K | Jan 22 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 15,000 | $223K | Dec 29 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 15,000 | $241K | Dec 29 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 30,000 | $534K | Dec 29 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 20,000 | $287K | Dec 22 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 30,000 | $441K | Dec 22 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 35,000 | $519K | Dec 22 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 30,000 | $505K | Dec 11 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 20,000 | $350K | Dec 11 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 30,000 | $481K | Dec 9 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 30,000 | $484K | Dec 9 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 40,000 | $642K | Dec 9 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 40,000 | $677K | Oct 21 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 37,500 | $615K | Oct 21 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 40,000 | $823K | Oct 17 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 25,000 | $482K | Oct 17 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 35,000 | $583K | Oct 14 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 35,331 | $600K | Oct 14 | SEC ↗ | |
| ALMU | 10% Owner | Sale | 36,855 | $732K | Oct 14 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Tompkins Mark N. made?
Tompkins Mark N. has filed 14 SEC Form 4 filings (65 transaction rows) across 1 company since 2025.
Which companies does Tompkins Mark N. trade?
Tompkins Mark N. has filed SEC Form 4 disclosures for 1 company, including ALMU.
When was Tompkins Mark N.'s most recent SEC Form 4 filing?
Tompkins Mark N.'s most recent SEC Form 4 filing on Tracefour is dated Feb 5, 2026.
What is Tompkins Mark N.'s total buy and sell value in the current window?
Inside the rolling retention window, Tompkins Mark N. bought $0 and sold $19.8M based on SEC Form 4 filings.
What was Tompkins Mark N.'s largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 63,604 ALMU shares on 2025-10-06, worth $1.2M, per SEC Form 4 filings.