Aeluma, Inc. (ALMU) Insider Ownership

Historic Insider Ownership Trends

Aeluma's three largest insider shareholders as of March 23, 2026 are Mark N. Tompkins (Other, 1.79Mn shares), Lee Mccarthy (Cfo, Coo, 1.63Mn shares), Jonathan Klamkin (Chief Executive Officer, 1.43Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Mark N. Tompkins 1,790,488 0 05 Feb, 2026
Lee Mccarthy Cfo, Coo 1,626,995 0 24 Jun, 2021
Jonathan Klamkin Chief Executive Officer 1,429,398 0 06 Mar, 2026
Steven Denbaars 385,088 0 27 Feb, 2026
Ian Seth Jacobs 200,000 0 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
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
25 Feb, 2026 Steven Denbaars Common Stock D 12,500 $17.58 397,588 D S
26 Feb, 2026 Steven Denbaars Common Stock D 12,500 $15.85 385,088 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