Mark N. Tompkins sold $2.0M of ALMU
owner at Aeluma, Inc.. 105,000 shares at an average of $19.14, traded Jan 20, 2026, filed Jan 22, 2026.
Score components
- +12Role10% owner
- +25Trade size$2.0M at market
- 0Share of holdings soldSold 5.2% of holdings
- 0ClusterNo other insider selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -12.9%, 3m +6.0%, 6m -9.6%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001213900-26-006847, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Jan 20, 2026 | SOpen-market sale Common Stock | -29,112 | $20.66 | $601k | 1,995,876 | Jan 22, 2026 |
| Jan 20, 2026 | SOpen-market sale Common Stock | -888 | $21.58 | $19k | 1,994,988 | Jan 22, 2026 |
| Jan 21, 2026 | SOpen-market sale Common Stock | -30,328 | $18.52 | $562k | 1,964,660 | Jan 22, 2026 |
| Jan 21, 2026 | SOpen-market sale Common Stock | -12,947 | $19.30 | $250k | 1,951,713 | Jan 22, 2026 |
| Jan 21, 2026 | SOpen-market sale Common Stock | -1,715 | $20.44 | $35k | 1,949,998 | Jan 22, 2026 |
| Jan 21, 2026 | SOpen-market sale Common Stock | -10 | $21.24 | $212 | 1,949,988 | Jan 22, 2026 |
| Jan 22, 2026 | SOpen-market sale Common Stock | -29,038 | $18.05 | $524k | 1,920,950 | Jan 22, 2026 |
| Jan 22, 2026 | SOpen-market sale Common Stock | -962 | $18.81 | $18k | 1,919,988 | Jan 22, 2026 |
Related signals
Other insiders at Aeluma, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 30Weak | Aeluma, Inc. | Jonathan Klamkin Chief Executive Officer | $1.3M 100,000 shares | -8% | |
| 30Weak | ALMUsell Aeluma, Inc. | Steven Denbaars director | $346k 25,000 shares | -7% | |
| 10Weak | Aeluma, Inc. | Steven Denbaars director | $346k 25,000 shares | -7% | |
| 40Moderate | Aeluma, Inc. | Jonathan Klamkin Chief Executive Officer | $335k 20,000 shares | -89% | |
| 41Moderate | Aeluma, Inc. | Jonathan Klamkin Chief Executive Officer | $422k 20,000 shares | -89% | |
| 51Moderate | Aeluma, Inc. | Jonathan Klamkin Chief Executive Officer | $501k 20,000 shares | -89% | |
| 21Weak | Aeluma, Inc. | Steven Denbaars director | $506k 25,000 shares | -6% | |
| 43Moderate | Aeluma, Inc. | Jonathan Klamkin Chief Executive Officer | $499k 20,000 shares | -89% | |
| 18Weak | Aeluma, Inc. | Jonathan Klamkin Chief Executive Officer | $262k 20,000 shares | -1% | |
| 37Weak | Aeluma, Inc. | Jonathan Klamkin Chief Executive Officer | $903k 50,000 shares | -3% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.