| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Chief Executive Officer | CEO
1 company
Jonathan Klamkin is Chief Executive Officer at ALMU. Jonathan Klamkin's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $8.5M at current prices.
Historically, Jonathan Klamkin's trades have earned a below-average insider score of 44/100 across 6 rated trades. Over a 12-month horizon, the one trade was not profitable, with an average 12-month return of -1.8%.
The ALMU filings lean toward selling, a net 500,000 shares.
Jonathan Klamkin has 10 Form 4 filings on record from June 2021 to October 2026, all as Chief Executive Officer at Aeluma (ALMU), 2021–2026.
The 41 reported transactions were 18 open-market sales, 16 gifts, 3 other transactions and 2 stock awards, plus smaller numbers of other types.
Counted by filing, the open-market trades come to no purchases and 9 sales worth about $8.1M.
The largest open-market sale was 150,000 shares of ALMU at an average $18.85 on August 14, 2025, about $2.8M. Twelve months later ALMU was up 2%.
All 9 sales since April 2023 were made under a Rule 10b5-1 trading plan, set up in advance.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 12, 2026 | ALMU Aeluma, Inc. | Chief Executive Officer | Sell10b5-1 | 100,000 | $10.53 | $1,053,430.00 | -8.1% | - | - | |
| Sep 21, 2026 | ALMU Aeluma, Inc. | Chief Executive Officer | Sell10b5-1 | 100,000 | $13.35 | $1,335,320.00 | -7.5% | - | - | |
| Aug 3, 2026 | ALMU Aeluma, Inc. | Chief Executive Officer | Sell10b5-1 | 20,000 | $16.73 | $334,640.59 | -89.3% | - | - | |
| Jul 1, 2026 | ALMU Aeluma, Inc. | Chief Executive Officer | Sell10b5-1 | 20,000 | $21.08 | $421,667.90 | -89.3% | -37.8% | - | |
| Jun 1, 2026 | ALMU Aeluma, Inc. | Chief Executive Officer | Sell10b5-1 | 20,000 | $25.03 | $500,660.78 | -89.3% | -50.0% | - | |
| May 1, 2026 | ALMU Aeluma, Inc. | Chief Executive Officer | Sell10b5-1 | 20,000 | $24.96 | $499,272.28 | -89.3% | -40.1% | - | |
| Apr 1, 2026 | ALMU Aeluma, Inc. | Chief Executive Officer | Sell10b5-1 | 20,000 | $13.10 | $261,950.00 | -1.4% | +71.8% | - | |
| Mar 4, 2026 | ALMU Aeluma, Inc. | Chief Executive Officer | Sell10b5-1 | 50,000 | $18.05 | $902,599.70 | -3.4% | +44.5% | - | |
| Aug 14, 2025 | ALMU Aeluma, Inc. | Chief Executive Officer | Sell10b5-1 | 150,000 | $18.85 | $2,827,305.00 | -9.2% | -22.4% | +1.8% |