James John Walker
James John Walker: Chief Executive Officer · Director at Nano Nuclear Energy. What James John Walker 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.
Nano Nuclear Energy (NNE)
James John Walker holds 635,000 Nano Nuclear Energy shares (1.2% of the company), worth about $9.3M at the last price, according to the Form 4 of Sep 3, 2026.
- Shares held: 635,000 (1.2%), $9.3M — Held in their own name.
- Options: 500,000 (0.93%), $7.3M — The right to buy 500,000 shares at $1.50 each. Not bought yet.
- Options: 300,000 (0.56%), $4.4M — The right to buy 300,000 shares at $28.32 each. Not bought yet.
- Options: 300,000 (0.56%), $4.4M — The right to buy 300,000 shares at $3.00 each. Not bought yet.
Declarations
- Nano Nuclear Energy (NNE) — Form 4 of Oct 1, 2026 (Chief Executive Officer) 0001493152-26-045804
- Nano Nuclear Energy (NNE) — Form 4 of Sep 3, 2026 (Chief Executive Officer): open-market sale of 25,000 at $17.77; 635,000 shares after 0001493152-26-041402
- Nano Nuclear Energy (NNE) — Form 4 of Sep 1, 2026 (Chief Executive Officer): open-market sale of 25,000 at $17.44; 660,000 shares after 0001493152-26-041359
- Nano Nuclear Energy (NNE) — Form 4/A of Jun 3, 2026 (Chief Executive Officer): option exercise or conversion of 200,000 at $3.00; 780,000 shares after 0001493152-26-040231
- Nano Nuclear Energy (NNE) — Form 4 of Jun 3, 2026 (Chief Executive Officer): option exercise or conversion of 70,000 at $3.00; open-market sale of 46,145 at $26.18; 555,000 shares after 0001493152-26-027559
- Nano Nuclear Energy (NNE) — Form 4 of Feb 2, 2026 (Chief Executive Officer): option exercise or conversion of 330,000 at $1.50; 580,000 shares after 0001493152-26-005014
- Nano Nuclear Energy (NNE) — Form 4 of Jan 28, 2026 (Chief Executive Officer): option exercise or conversion of 170,000 at $1.50; open-market sale of 86,098 at $33.64; 250,000 shares after 0001493152-26-004580
- Nano Nuclear Energy (NNE) — Form 4 of Dec 24, 2025 (Chief Executive Officer): open-market sale of 22,459 at $30.03; open-market sale of 2,541 at $30.97; 275,000 shares after 0001493152-25-029659
- Nano Nuclear Energy (NNE) — Form 4 of Nov 13, 2025 (Chief Executive Officer) 0001493152-25-023879
- Nano Nuclear Energy (NNE) — Form 4 of Jun 3, 2025 (Chief Executive Officer) 0001641172-25-013907
- Nano Nuclear Energy (NNE) — Form 4 of Mar 13, 2025 (Chief Executive Officer) 0001493152-25-010627
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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