Based on data from the past 90 days ending January 10, 2026, Aeluma's three largest insider shareholders are TenPercentOwner Mark N. Tompkins (2.02Mn shares), Cfo And Coo Lee Mccarthy (1.63Mn shares), Chief Executive Officer Jonathan Klamkin (1.48Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Mark N. Tompkins | 2,024,988 | 29 Dec, 2025 | |
| Lee Mccarthy | Cfo And Coo | 1,626,995 | 24 Jun, 2021 |
| Jonathan Klamkin | Chief Executive Officer | 1,479,398 | 09 Sep, 2025 |
| Steven Denbaars | 376,755 | 24 Jun, 2021 | |
| Ian Seth Jacobs | 200,000 | 23 Jun, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 26 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 6,970 | $16.91 | 2,048,018 | D | S |
| 26 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 20,368 | $18.01 | 2,027,650 | D | S |
| 26 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 2,662 | $18.39 | 2,024,988 | D | S |
| 24 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 15,000 | $16.05 | 2,054,988 | D | S |
| 23 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 15,000 | $14.87 | 2,069,988 | D | S |
| 22 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 35,000 | $14.83 | 2,084,988 | D | S |
| 19 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 30,000 | $14.70 | 2,119,988 | D | S |
| 18 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 20,000 | $14.37 | 2,149,988 | D | S |
| 10 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 20,000 | $17.49 | 2,169,988 | D | S |
| 09 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 10,861 | $16.39 | 2,209,127 | D | S |
| 09 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 19,139 | $17.06 | 2,189,988 | D | S |
| 08 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 988 | $16.87 | 2,219,988 | D | S |
| 08 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 39,012 | $16.04 | 2,220,976 | D | S |
| 05 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 28,390 | $16.12 | 2,261,598 | D | S |
| 05 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 1,610 | $16.49 | 2,259,988 | D | S |
| 04 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 11,500 | $15.49 | 2,308,488 | D | S |
| 04 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 18,500 | $16.37 | 2,289,988 | D | S |
| 20 Oct, 2025 | Mark N. Tompkins | Common Stock | D | 37,500 | $16.39 | 2,319,988 | D | S |
| 17 Oct, 2025 | Mark N. Tompkins | Common Stock | D | 5,913 | $17.77 | 2,358,231 | D | S |
| 17 Oct, 2025 | Mark N. Tompkins | Common Stock | D | 743 | $18.45 | 2,357,488 | D | S |