Nasdaq · CIK 0001923891
NNE Nano Nuclear Energy Inc.
Insider trading from SEC Form 4. Last filing 9 d ago. Close $14.29 on Oct 12, 2026, 0% from the 52-week low and -74% from the high.
In brief
Nano Nuclear Energy Inc. (NNE) has 54 SEC Form 4 filings on file from 9 insiders, the latest filed on Oct 5, 2026. In the last 90 days insiders made 0 open-market buys worth $0 and 3 open-market sells worth $9.2M, net -$9.2M.
22 open-market trades have been scored at NNE. The newest: James John Walker (Chief Executive Officer) sold $436k of stock on Sep 1, 2026, filed Sep 3, 2026, scored 30 (weak), under a 10b5-1 plan. The largest of the 22 shown: I Financial Ventures Group LLC (10% owner) sold $30M on Jan 28, 2026, scored 17 (weak), under a 10b5-1 plan. 2 insiders sold within 14 days of each other around Sep 1, 2026.
19 Form 144 notices of planned sales are on file, the latest filed Sep 3, 2026.
Last 90 days
Net insider value
-$9.2M
more sold than bought
Buys
0
$0 by 0 insiders
Sells
3
$9.2M by 2 insiders
Insiders on file
9
with a Form 4 at this company
Price and insider trades, last year
NNEOct 12, 2026 · close 14.29
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Nano Nuclear Energy Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 30Weak | James John Walker Chief Executive Officer sell | $436k 25,000 shares | -4% | - | |
| 33Weak | Jiang Yu President and Chairman sell | $8.3M 474,500 shares | -6% | - | |
| 30Weak | James John Walker Chief Executive Officer sell | $444k 25,000 shares | -4% | - | |
| 35Weak | Seth Jason Berl director sell | $93k 3,750 shares | -33% | +24% from low-58% from high | |
| 32Weak | Jaisun Garcha Chief Financial Officer sell | $986k 37,215 shares | -10% | +39% from low-53% from high | |
| 24Weak | Diane Elizabeth Hare director sell | $91k 3,428 shares | -100% | +39% from low-53% from high | |
| 33Weak | Florent Heidet Chief Technology Officer sell | $75k 3,000 shares | -33% | +24% from low-58% from high | |
| 17Weak | I Financial Ventures Group LLC owner sell | $19M 700,000 shares | -8% | +39% from low-53% from high | |
| 25Weak | Jiang Yu President and Chairman sell | $20M 745,900 shares | -9% | +39% from low-53% from high | |
| 35Weak | James John Walker Chief Executive Officer sell | $3.3M 123,688 shares | -19% | +39% from low-53% from high | |
| 35Weak | Seth Jason Berl director sell | $101k 3,664 shares | -49% | +49% from low-51% from high | |
| 32Weak | Jaisun Garcha Chief Financial Officer sell | $2.6M 75,000 shares | -23% | +87% from low-39% from high | |
| 17Weak | I Financial Ventures Group LLC owner sell | $30M 888,000 shares | -10% | +87% from low-39% from high | |
| 40Moderate | James John Walker Chief Executive Officer sell | $6.6M 195,000 shares | -44% | +87% from low-39% from high | |
| 25Weak | Jiang Yu President and Chairman sell | $30M 888,000 shares | -10% | +87% from low-39% from high | |
| 34Weak | Diane Elizabeth Hare director sell | $574k 20,000 shares | -100% | +67% from low-45% from high | |
| 35Weak | Diane Elizabeth Hare director sell | $649k 20,000 shares | -137% | +71% from low-44% from high | |
| 32Weak | I Financial Ventures Group LLC owner sell | $26M 888,000 shares | -9% | +64% from low-46% from high | |
| 30Weak | Tsun Yee Law director sell | $1.8M 55,000 shares | -45% | +71% from low-44% from high | |
| 42Moderate | James John Walker Chief Executive Officer sell | $753k 25,000 shares | -8% | +64% from low-46% from high | |
| 40Moderate | Jiang Yu President and Chairman sell | $26M 888,000 shares | -9% | +64% from low-46% from high | |
| 40Moderate | Kenny Joe Yung Yu director sell | $1.3M 40,000 shares | -89% | +71% from low-44% from high |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Sep 3, 2026 | Walker James John Officer | 25,000 0.05% of outstanding | $444k | Sep 3, 2026 | $3.7M |
| Sep 1, 2026 | I FINANCIAL VENTURES GROUP LLC 10% Stockholder | 474,500 0.88% of outstanding | $8.7M | Sep 1, 2026 | $20M |
| Sep 1, 2026 | Walker James John Officer | 25,000 0.05% of outstanding | $435k | Sep 1, 2026 | $3.3M |
| Jun 5, 2026 | SETH BERL Director | 3,750 0.01% of outstanding | $93k | Jun 5, 2026 | none |
| Jun 5, 2026 | FLORENT HEIDET Officer | 3,000 0.01% of outstanding | $75k | Jun 5, 2026 | none |
| Jun 3, 2026 | Garcha Jaisun Officer, CFO | 37,215 0.07% of outstanding | $1.1M | Jun 3, 2026 | none |
| Jun 3, 2026 | DIANE HARE Director | 3,428 0.01% of outstanding | $105k | Jun 3, 2026 | none |
| Jun 3, 2026 | I FINANCIAL VENTURES GROUP LLC 10% Stockholder | 700,000 1.34% of outstanding | $21M | Jun 3, 2026 | none |
| Jun 3, 2026 | JIANG YU Director, Officer, 10% Stockholder | 45,900 0.09% of outstanding | $1.4M | Jun 3, 2026 | none |
| Jun 3, 2026 | Walker James John Officer | 123,688 0.24% of outstanding | $3.7M | Jun 3, 2026 | none |
| Mar 2, 2026 | SETH BERL Director | 3,664 0.01% of outstanding | $101k | Mar 2, 2026 | none |
| Jan 28, 2026 | Garcha Jaisun Officer | 75,000 0.15% of outstanding | $2.6M | Jan 28, 2026 | none |
| Jan 28, 2026 | I FINANCIAL VENTURES GROUP LLC 10% Stockholder | 888,000 1.76% of outstanding | $31M | Jan 28, 2026 | $26M |
| Jan 28, 2026 | Walker James John Officer | 195,000 0.39% of outstanding | $6.9M | Jan 28, 2026 | $753k |
| Dec 29, 2025 | I FINANCIAL VENTURES GROUP LLC 10% Stockholder | 888,000 1.76% of outstanding | $28M | Dec 24, 2025 | none |
| Dec 29, 2025 | Walker James John Officer | 25,000 0.05% of outstanding | $753k | Dec 24, 2025 | none |
| Dec 23, 2025 | DIANE HARE Director | 40,000 0.08% of outstanding | $1.3M | Dec 23, 2025 | none |
| Dec 23, 2025 | TSUN YEE LAW Director | 55,000 0.11% of outstanding | $1.8M | Dec 23, 2025 | none |
| Dec 23, 2025 | KENNY YU Director | 40,000 0.08% of outstanding | $1.3M | Dec 23, 2025 | none |
Transactions
The newest 50 of 195 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | Tsun Yee Law director | AGrant or award Restricted Stock Unitsderivative10b5-1 | +9,536 | $0.00 | $0 | 0 | 9 d ago |
| Oct 1, 2026 | Diane Elizabeth Hare director | AGrant or award Restricted Stock Unitsderivative10b5-1 | +9,536 | $0.00 | $0 | 0 | 9 d ago |
| Oct 1, 2026 | Jiang Yu President and Chairman | AGrant or award Restricted Stock Unitsderivative10b5-1 | +461,223 | $0.00 | $0 | 0 | 9 d ago |
| Oct 1, 2026 | Kenny Joe Yung Yu director | AGrant or award Restricted Stock Unitsderivative10b5-1 | +9,536 | $0.00 | $0 | 0 | 9 d ago |
| Oct 1, 2026 | Seth Jason Berl director | AGrant or award Restricted Stock Unitsderivative10b5-1 | +9,536 | $0.00 | $0 | 0 | 9 d ago |
| Oct 1, 2026 | James John Walker Chief Executive Officer | AGrant or award Restricted Stock Unitsderivative10b5-1 | +257,790 | $0.00 | $0 | 0 | 9 d ago |
| Oct 1, 2026 | Jaisun Garcha Chief Financial Officer | AGrant or award Restricted Stock Unitsderivative10b5-1 | +168,786 | $0.00 | $0 | 0 | 9 d ago |
| Sep 3, 2026 | James John Walker Chief Executive Officer | SOpen-market sale Common Stock10b5-1 | -25,000 | $17.77 | $444k | 635,000 | 41 d ago |
| Sep 1, 2026 | James John Walker Chief Executive Officer | SOpen-market sale Common Stock10b5-1 | -25,000 | $17.44 | $436k | 660,000 | 41 d ago |
| Sep 1, 2026 | Jiang Yu President and Chairman | SOpen-market sale Common Stockindirect: By I Financial Ventures Group LLC10b5-1 | -332,569 | $17.45 | $5.8M | 7,891,431 | 41 d ago |
| Sep 2, 2026 | Jiang Yu President and Chairman | SOpen-market sale Common Stockindirect: By I Financial Ventures Group LLC10b5-1 | -141,931 | $17.48 | $2.5M | 7,749,500 | 41 d ago |
| Jun 3, 2026 | James John Walker Chief Executive Officer | MOption exercise Common Stock | +200,000 | $3.00 | $600k | 780,000 | Aug 26, 2026 |
| Jun 3, 2026 | James John Walker Chief Executive Officer | MOption exercise Stock Optionsderivative | -200,000 | $0.00 | $0 | 300,000 | Aug 26, 2026 |
| Jun 3, 2026 | I Financial Ventures Group LLC owner | SOpen-market sale Common Stock10b5-1 | -312,553 | $26.30 | $8.2M | 8,411,447 | Jun 5, 2026 |
| Jun 3, 2026 | James John Walker Chief Executive Officer | MOption exercise Common Stock10b5-1 | +70,000 | $3.00 | $210k | 650,000 | Jun 5, 2026 |
| Jun 3, 2026 | Tsun Yee Law director | MOption exercise Common Stock | +3,428 | $0.00 | $0 | 78,428 | Jun 5, 2026 |
| Jun 3, 2026 | Diane Elizabeth Hare director | MOption exercise Common Stock10b5-1 | +3,428 | $0.00 | $0 | 3,428 | Jun 5, 2026 |
| Jun 3, 2026 | Jiang Yu President and Chairman | SOpen-market sale Common Stockindirect: By I Financial Ventures Group LLC10b5-1 | -312,553 | $26.30 | $8.2M | 8,411,447 | Jun 5, 2026 |
| Jun 3, 2026 | Jaisun Garcha Chief Financial Officer | MOption exercise Common Stock10b5-1 | +20,000 | $3.00 | $60k | 365,000 | Jun 5, 2026 |
| Jun 3, 2026 | Seth Jason Berl director | MOption exercise Common Stock | -7,500 | $0.00 | $0 | 11,336 | Jun 5, 2026 |
| Jun 3, 2026 | Kenny Joe Yung Yu director | MOption exercise Common Stock | +3,428 | $0.00 | $0 | 18,428 | Jun 5, 2026 |
| Jun 3, 2026 | Florent Heidet Chief Technology Officer | MOption exercise Common Stock | +9,185 | $0.00 | $0 | 9,185 | Jun 5, 2026 |
| Jun 3, 2026 | I Financial Ventures Group LLC owner | SOpen-market sale Common Stock10b5-1 | -168,626 | $27.16 | $4.6M | 8,242,821 | Jun 5, 2026 |
| Jun 3, 2026 | Jaisun Garcha Chief Financial Officer | SOpen-market sale Common Stock10b5-1 | -20,000 | $26.08 | $522k | 345,000 | Jun 5, 2026 |
| Jun 3, 2026 | James John Walker Chief Executive Officer | SOpen-market sale Common Stock10b5-1 | -46,145 | $26.18 | $1.2M | 603,855 | Jun 5, 2026 |
| Jun 3, 2026 | Tsun Yee Law director | MOption exercise Restricted Stock Unitsderivative | -3,428 | $0.00 | $0 | 2,968 | Jun 5, 2026 |
| Jun 5, 2026 | Seth Jason Berl director | SOpen-market sale Common Stock | -3,750 | $24.92 | $93k | 7,586 | Jun 5, 2026 |
| Jun 3, 2026 | Kenny Joe Yung Yu director | MOption exercise Restricted Stock Unitsderivative | -3,428 | $0.00 | $0 | 2,968 | Jun 5, 2026 |
| Jun 3, 2026 | Diane Elizabeth Hare director | SOpen-market sale Common Stock10b5-1 | -2,228 | $26.31 | $59k | 1,200 | Jun 5, 2026 |
| Jun 5, 2026 | Florent Heidet Chief Technology Officer | SOpen-market sale Common Stock | -3,000 | $24.95 | $75k | 6,185 | Jun 5, 2026 |
| Jun 3, 2026 | Jiang Yu President and Chairman | SOpen-market sale Common Stockindirect: By I Financial Ventures Group LLC10b5-1 | -168,626 | $27.16 | $4.6M | 8,242,821 | Jun 5, 2026 |
| Jun 3, 2026 | Florent Heidet Chief Technology Officer | MOption exercise Restricted Stock Unitsderivative | +9,185 | $0.00 | $0 | 29,647 | Jun 5, 2026 |
| Jun 3, 2026 | I Financial Ventures Group LLC owner | SOpen-market sale Common Stock10b5-1 | -10,035 | $27.83 | $279k | 8,232,786 | Jun 5, 2026 |
| Jun 3, 2026 | Jaisun Garcha Chief Financial Officer | MOption exercise Common Stock10b5-1 | +17,215 | $0.00 | $0 | 362,215 | Jun 5, 2026 |
| Jun 3, 2026 | Jiang Yu President and Chairman | SOpen-market sale Common Stockindirect: By I Financial Ventures Group LLC10b5-1 | -10,035 | $27.83 | $279k | 8,232,786 | Jun 5, 2026 |
| Jun 3, 2026 | Diane Elizabeth Hare director | SOpen-market sale Common Stock10b5-1 | -1,000 | $27.04 | $27k | 200 | Jun 5, 2026 |
| Jun 3, 2026 | James John Walker Chief Executive Officer | SOpen-market sale Common Stock10b5-1 | -22,380 | $27.06 | $606k | 581,475 | Jun 5, 2026 |
| Jun 3, 2026 | Seth Jason Berl director | MOption exercise Restricted Stock Unitsderivative | -7,500 | $0.00 | $0 | 2,968 | Jun 5, 2026 |
| Jun 3, 2026 | I Financial Ventures Group LLC owner | SOpen-market sale Common Stock10b5-1 | -3,571 | $28.98 | $103k | 8,229,215 | Jun 5, 2026 |
| Jun 3, 2026 | Jaisun Garcha Chief Financial Officer | SOpen-market sale Common Stock10b5-1 | -15,223 | $26.84 | $409k | 346,992 | Jun 5, 2026 |
| Jun 3, 2026 | Jiang Yu President and Chairman | SOpen-market sale Common Stockindirect: By I Financial Ventures Group LLC10b5-1 | -3,571 | $28.98 | $103k | 8,229,215 | Jun 5, 2026 |
| Jun 3, 2026 | James John Walker Chief Executive Officer | SOpen-market sale Common Stock10b5-1 | -1,475 | $27.90 | $41k | 580,000 | Jun 5, 2026 |
| Jun 3, 2026 | Diane Elizabeth Hare director | SOpen-market sale Common Stock10b5-1 | -100 | $27.84 | $2,784 | 100 | Jun 5, 2026 |
| Jun 3, 2026 | I Financial Ventures Group LLC owner | SOpen-market sale Common Stock10b5-1 | -5,215 | $29.91 | $156k | 8,224,000 | Jun 5, 2026 |
| Jun 3, 2026 | Jaisun Garcha Chief Financial Officer | SOpen-market sale Common Stock10b5-1 | -1,761 | $27.59 | $49k | 345,231 | Jun 5, 2026 |
| Jun 3, 2026 | James John Walker Chief Executive Officer | MOption exercise Common Stock10b5-1 | +28,688 | $0.00 | $0 | 608,688 | Jun 5, 2026 |
| Jun 3, 2026 | Jiang Yu President and Chairman | SOpen-market sale Common Stockindirect: By I Financial Ventures Group LLC10b5-1 | -5,215 | $29.91 | $156k | 8,224,000 | Jun 5, 2026 |
| Jun 3, 2026 | Diane Elizabeth Hare director | SOpen-market sale Common Stock10b5-1 | -100 | $28.87 | $2,887 | 0 | Jun 5, 2026 |
| Jun 3, 2026 | I Financial Ventures Group LLC owner | MOption exercise Common Stock10b5-1 | +200,000 | $3.00 | $600k | 8,424,000 | Jun 5, 2026 |
| Jun 3, 2026 | Jaisun Garcha Chief Financial Officer | SOpen-market sale Common Stock10b5-1 | -174 | $28.81 | $5,013 | 345,057 | Jun 5, 2026 |
50 of 195 rows shown.
Insiders
Everyone who has filed a Form 4 here.
- Seth Jason Berldirector
- Jaisun GarchaChief Financial Officer
- Diane Elizabeth Haredirector
- Florent HeidetChief Technology Officer
- I Financial Ventures Group LLCowner
- Tsun Yee Lawdirector
- James John WalkerChief Executive Officer
- Jiang YuPresident and Chairman
- Kenny Joe Yung Yudirector
Questions about NNE
Answered from the filings on this page, as of the latest one.
Are insiders buying NNE?
As of Oct 5, 2026, SEC Form 4 filings show 0 open-market buys worth $0 by 0 insiders and 3 open-market sells worth $9.2M by 2 insiders at Nano Nuclear Energy Inc. in the last 90 days, net -$9.2M. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.
Who was the last insider to trade NNE on the open market?
James John Walker (Chief Executive Officer) sold $436k of NNE on Sep 1, 2026 and filed the Form 4 on Sep 3, 2026. InsiderTell scored 30 (weak), under a 10b5-1 plan, with 2 insiders on the same side within 14 days.
How many insiders file Form 4 at Nano Nuclear Energy Inc.?
9 people have filed a Form 4 at Nano Nuclear Energy Inc., among them Seth Jason Berl (director), Jaisun Garcha (Chief Financial Officer), Diane Elizabeth Hare (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
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.