James John Walker sold $753k of NNE
Chief Executive Officer at Nano Nuclear Energy Inc.. 25,000 shares at an average of $30.12, traded Dec 24, 2025, filed Dec 30, 2025.
Score components
- +25RoleCEO
- +22Trade size$753k at market
- 0Share of holdings soldSold 8.3% of holdings
- +15Cluster6 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +29.0%, 3m -17.7%, 6m -15.1%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001493152-25-029659, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Dec 24, 2025 | SOpen-market sale Common Stock10b5-1 | -22,459 | $30.03 | $674k | 277,541 | Dec 30, 2025 |
| Dec 24, 2025 | SOpen-market sale Common Stock10b5-1 | -2,541 | $30.97 | $79k | 275,000 | Dec 30, 2025 |
Related signals
Other insiders at Nano Nuclear Energy Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 30Weak | Nano Nuclear Energy Inc. | James John Walker Chief Executive Officer | $436k 25,000 shares | -4% | |
| 33Weak | Nano Nuclear Energy Inc. | Jiang Yu President and Chairman | $8.3M 474,500 shares | -6% | |
| 30Weak | Nano Nuclear Energy Inc. | James John Walker Chief Executive Officer | $444k 25,000 shares | -4% | |
| 35Weak | Nano Nuclear Energy Inc. | Seth Jason Berl director | $93k 3,750 shares | -33% | |
| 32Weak | Nano Nuclear Energy Inc. | Jaisun Garcha Chief Financial Officer | $986k 37,215 shares | -10% | |
| 24Weak | Nano Nuclear Energy Inc. | Diane Elizabeth Hare director | $91k 3,428 shares | -100% | |
| 33Weak | Nano Nuclear Energy Inc. | Florent Heidet Chief Technology Officer | $75k 3,000 shares | -33% | |
| 17Weak | Nano Nuclear Energy Inc. | I Financial Ventures Group LLC owner | $19M 700,000 shares | -8% | |
| 25Weak | Nano Nuclear Energy Inc. | Jiang Yu President and Chairman | $20M 745,900 shares | -9% | |
| 35Weak | Nano Nuclear Energy Inc. | James John Walker Chief Executive Officer | $3.3M 123,688 shares | -19% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.