Jonathan Klamkin
Jonathan Klamkin: Chief Executive Officer · Director at Aeluma. What Jonathan Klamkin holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Aeluma (ALMU)
Jonathan Klamkin holds 1.3M Aeluma shares (7.2% of the company), worth about $13.2M at the last price, according to the Form 4 of Sep 21, 2026.
- Shares held: 1.2M (6.9%), $12.7M — Held through trusts (By Family Trust).
- Shares held: 42,302 (0.24%), $439,517.78 — Held in their own name.
- Options: 1.9M (11.0%), $20.2M — The right to buy 1.9M shares at $7.80 each, until 2034. Not bought yet.
- Options: 1.7M (9.8%), $17.9M — The right to buy 1.7M shares at $2.10 each, until 2032. Not bought yet.
- Options: 326,253 (1.8%), $3.4M — The right to buy 326,253 shares at $16.37 each, until 2035. Not bought yet.
- Options: 75,135 (0.43%), $780,652.65 — The right to buy 75,135 shares at $13.61 each, until 2036. Not bought yet.
Declarations
- Aeluma (ALMU) — Form 4 of Sep 21, 2026 (Chief Executive Officer): open-market sale of 100,000 at $13.35; grant or award of 31,771; 1.3M shares after 0001869626-26-000026
- Aeluma (ALMU) — Form 4 of Aug 3, 2026 (Chief Executive Officer): gift of 20,000; gift of 20,000; 1.3M shares after 0001869626-26-000023
- Aeluma (ALMU) — Form 4 of Jul 1, 2026 (Chief Executive Officer): gift of 20,000; gift of 20,000; 1.3M shares after 0001869626-26-000020
- Aeluma (ALMU) — Form 4 of Jun 1, 2026 (Chief Executive Officer): gift of 20,000; gift of 20,000; 1.4M shares after 0001869626-26-000018
- Aeluma (ALMU) — Form 4 of May 1, 2026 (Chief Executive Officer): gift of 350,000; gift of 350,000; 1.4M shares after 0001869626-26-000015
- Aeluma (ALMU) — Form 4 of Apr 1, 2026 (Chief Executive Officer): open-market sale of 20,000 at $13.10; 1.4M shares after 0001869626-26-000011
- Aeluma (ALMU) — Form 4 of Mar 4, 2026 (Chief Executive Officer): open-market sale of 28,206 at $17.77; open-market sale of 21,794 at $18.41; 1.4M shares after 0001869626-26-000006
- Aeluma (ALMU) — Form 4/A of Aug 14, 2025 (Chief Executive Officer): other of 2,403 at $16.37; open-market sale of 150,000 at $18.85; 1.5M shares after 0001213900-25-086275
- Aeluma (ALMU) — Form 4 of Aug 14, 2025 (Chief Executive Officer): other of 2,403 at $16.37; open-market sale of 150,000 at $18.85; 1.5M shares after 0001213900-25-076943
- Aeluma (ALMU) — Form 5 of Jan 10, 2024 (Chief Executive Officer) 0001213900-25-047231
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.
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