ALMU insider trading — Aeluma, Inc.
Over the last 90 days, insiders at Aeluma, Inc. (ALMU) made 0 open-market purchases worth $0 and 2 open-market sales worth $346K, making them net sellers by $346K. The largest sale was by Denbaars Steven (Director), who sold 12,500 shares for $173K on Aug 26, 2026.
Updated Oct 16, 2026.
Recent ALMU insider transactions
Every Form 4 filed by Aeluma, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 12, 2026 | Klamkin Jonathan | Chief Executive Officer | S · Sale · 10b5-1 | Indirect | 100,000 | $10.53 | $1.05M | Form 4 |
| Sep 30, 2026 | Stewart Christopher P. | Chief Financial Officer | F · Tax withholding | Direct | 5,697 | $12.36 | $70K | Form 4 |
| Sep 21, 2026 | Stewart Christopher P. | Chief Financial Officer | A · Grant/award | Direct | 19,928 | — | — | Form 4 |
| Sep 21, 2026 | Stewart Christopher P. | Chief Financial Officer | F · Tax withholding | Direct | 1,450 | $13.61 | $20K | Form 4 |
| Sep 21, 2026 | Klamkin Jonathan | Chief Executive Officer | S · Sale · 10b5-1 | Indirect | 100,000 | $13.35 | $1.34M | Form 4 |
| Sep 21, 2026 | Klamkin Jonathan | Chief Executive Officer | A · Grant/award · 10b5-1 | Direct | 44,446 | — | — | Form 4 |
| Sep 21, 2026 | Klamkin Jonathan | Chief Executive Officer | F · Tax withholding · 10b5-1 | Direct | 4,547 | $13.61 | $62K | Form 4 |
| Sep 21, 2026 | Byron Michael | Director | M · Option exercise | Direct | 25,000 | $5.93 | $148K | Form 4 |
| Aug 27, 2026 | Denbaars Steven | Director | S · Sale | Direct | 12,500 | $13.82 | $173K | Form 4 |
| Aug 26, 2026 | Denbaars Steven | Director | S · Sale | Direct | 12,500 | $13.84 | $173K | Form 4 |
| Aug 3, 2026 | Klamkin Jonathan | Chief Executive Officer | G · Gift · 10b5-1 | Indirect | 20,000 | — | — | Form 4 |
| Aug 3, 2026 | Klamkin Jonathan | Chief Executive Officer | G · Gift · 10b5-1 | Direct | 20,000 | — | — | Form 4 |
| Aug 3, 2026 | Klamkin Jonathan | Chief Executive Officer | S · Sale · 10b5-1 | Direct | 20,000 | $16.73 | $335K | Form 4 |
ALMU insider trading FAQ
Are insiders buying ALMU stock?
Not on the open market. In the last 90 days, Aeluma, Inc. insiders made no open-market purchases, and 2 open-market sales totaling $346K. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading ALMU?
Recent sellers: Denbaars Steven.
Where does ALMU insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.