ALMU
Aeluma, Inc. · Technology · Market cap $148.5M
Insiders sold $3.1M net in the last 90 days ·2 sellers, 0 buyers· 5 of 5 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 14, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$15.3M
reported sales (SEC code S)
Unique Insiders
4
in the rolling window
Latest filing
Oct 14, 2026
Klamkin Jonathan
Aeluma, Inc. (ALMU) has 27 SEC Form 4 filings (88 transaction rows) in the rolling window, disclosed by 4 distinct insiders. Most recent filing: Oct 14, 2026.
Inside the rolling window, 4 insiders at Aeluma, Inc. reported no open-market purchases and 33 open-market sales totaling $15.3M. The most active filer is Insider Tompkins Mark N. with 18 filings. Insiders have net sold $5.0M over the trailing 6 months. The most recent open-market filing is a sale of 100,000 shares by Chief Executive Officer Klamkin Jonathan, dated Oct 12, 2026, worth $1.1M.
- Industry:Semiconductors
- CEO:Jonathan Klamkin
- Employees:13
- HQ:Goleta, CA, US
- IPO:2022-11-16
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Chief Executive Officer | Sale | 100,000 | $1.1M | Oct 14 | -15.5% | SEC ↗ | |
| Chief Executive Officer | Sale | 100,000 | $1.3M | Sep 23 | -41.5% | SEC ↗ | |
| Director | Sale | 12,500 | $173K | Aug 28 | -41.3% | SEC ↗ | |
| Director | Sale | 12,500 | $173K | Aug 28 | -41.3% | SEC ↗ | |
| Chief Executive Officer | Sale | 20,000 | $335K | Aug 5 | -54.2% | SEC ↗ | |
| Chief Executive Officer | Sale | 20,000 | $422K | Jul 2 | -59.1% | SEC ↗ | |
| Chief Executive Officer | Sale | 20,000 | $501K | Jun 3 | — | SEC ↗ | |
| Director | Sale | 12,500 | $250K | May 21 | — | SEC ↗ | |
| Director | Sale | 12,500 | $256K | May 21 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 20,000 | $499K | May 5 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 20,000 | $262K | Apr 3 | — | SEC ↗ | |
Klamkin JonathanFirst filing | Chief Executive Officer | Sale | 50,000 | $903K | Mar 5 | — | SEC ↗ |
Denbaars StevenFirst filing | Director | Sale | 12,500 | $220K | Feb 27 | — | SEC ↗ |
Denbaars StevenFirst filing | Director | Sale | 12,500 | $198K | Feb 27 | — | SEC ↗ |
| Former 10% Owner | Sale | 34,500 | $508K | Feb 5 | — | SEC ↗ | |
| 10% Owner | Sale | 32,500 | $547K | Feb 2 | — | SEC ↗ | |
| 10% Owner | Sale | 25,000 | $398K | Feb 2 | — | SEC ↗ | |
| 10% Owner | Sale | 37,500 | $590K | Feb 2 | — | SEC ↗ | |
| 10% Owner | Sale | 30,000 | $621K | Jan 22 | — | SEC ↗ | |
| 10% Owner | Sale | 45,000 | $847K | Jan 22 | — | SEC ↗ | |
| 10% Owner | Sale | 30,000 | $542K | Jan 22 | — | SEC ↗ | |
McCarthy LeeFirst filing | 10% Owner | Sale | 649,570 | $4K | Jan 2 | — | SEC ↗ |
| 10% Owner | Sale | 15,000 | $223K | Dec 29 | — | SEC ↗ | |
| 10% Owner | Sale | 15,000 | $241K | Dec 29 | — | SEC ↗ | |
| 10% Owner | Sale | 30,000 | $534K | Dec 29 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does ALMU have?
Aeluma, Inc. (ALMU) has 27 SEC Form 4 filings (88 transaction rows) in the rolling 365-day window, disclosed by 4 distinct insiders. Most recent filing: Oct 14, 2026.
When was the most recent SEC Form 4 filing for ALMU?
The most recent Form 4 filing for ALMU on Tracefour is dated Oct 14, 2026.
Who is the most active insider at ALMU?
The most active SEC Form 4 filer at ALMU in the rolling window is Insider Tompkins Mark N., with 18 filings.
What is the net insider flow at ALMU over the last 6 months?
Over the trailing 180 days, insiders at ALMU have net sold $5.0M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at ALMU in the current window?
Inside the rolling window, insiders at ALMU bought $0 and sold $15.3M based on SEC Form 4 filings.
Can I get alerts for ALMU insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Aeluma, Inc. (ALMU). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Aeluma, Inc. is in the Technology sector.