Aeluma's top three insider shareholders as of May 14, 2026 are Mark N. Tompkins (TenPercentOwner, 2.72Mn shares), Mark N. Tompkins (Other, 1.79Mn shares), Jonathan Klamkin (Chief Executive Officer, 1.41Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Mark N. Tompkins | - | 2,715,833 | 0 | 13 Jan, 2023 |
| Mark N. Tompkins | - | 1,790,488 | 0 | 05 Feb, 2026 |
| Jonathan Klamkin | Chief Executive Officer | 1,409,398 | 0 | 03 Apr, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Jonathan Klamkin | Common Stock | D | 20,000 | $13.10 | 1,409,398 | D | S |
| 04 Mar, 2026 | Jonathan Klamkin | Common Stock | D | 28,206 | $17.77 | 1,451,192 | D | S |
| 04 Mar, 2026 | Jonathan Klamkin | Common Stock | D | 21,794 | $18.41 | 1,429,398 | D | S |
| 04 Feb, 2026 | Mark N. Tompkins | Common Stock | D | 28,544 | $14.63 | 1,796,444 | D | S |
| 04 Feb, 2026 | Mark N. Tompkins | Common Stock | D | 5,956 | $15.12 | 1,790,488 | D | S |
| 29 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 27,297 | $16.75 | 1,892,691 | D | S |
| 29 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 5,203 | $17.16 | 1,887,488 | D | S |
| 30 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 24,092 | $15.88 | 1,863,396 | D | S |
| 30 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 908 | $16.79 | 1,862,488 | D | S |
| 02 Feb, 2026 | Mark N. Tompkins | Common Stock | D | 37,500 | $15.74 | 1,824,988 | D | S |
| 20 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 29,112 | $20.66 | 1,995,876 | D | S |
| 20 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 888 | $21.58 | 1,994,988 | D | S |
| 21 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 30,328 | $18.52 | 1,964,660 | D | S |
| 21 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 12,947 | $19.30 | 1,951,713 | D | S |
| 21 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 1,715 | $20.44 | 1,949,998 | D | S |
| 21 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 10 | $21.24 | 1,949,988 | D | S |
| 22 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 29,038 | $18.05 | 1,920,950 | D | S |
| 22 Jan, 2026 | Mark N. Tompkins | Common Stock | D | 962 | $18.81 | 1,919,988 | D | S |
| 23 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 15,000 | $14.87 | 2,069,988 | D | S |
| 24 Dec, 2025 | Mark N. Tompkins | Common Stock | D | 15,000 | $16.05 | 2,054,988 | D | S |