Nano Nuclear Energy Inc. (NNE)
$17.98-$1.26 (-6.55%) Today
Nano Nuclear Energy Inc is a nuclear energy and technology company developing smaller, simpler, and safer clean energy solutions using proprietary reactor designs, intellectual property, and research methods, and is currently in the pre-revenue stage. The Company development focuses on four business lines: the Nuclear Reactor Business, involving nuclear microreactors including KRONOS MMR, ZEUS, and LOKI MMR; the Fuel Processing Business, aimed at developing a domestic LEU and HALEU fuel supply chain in coordination with the Department of Energy; the Fuel Transportation Business, focused on developing high-capacity HALEU transportation products; and Nuclear Consultation Services, providing nuclear service support and consultation services domestically and internationally.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 44 | 1,616,981 | $43.09M |
| Option exercise | 26 | 1,617,544 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
33 Form 4 filings on record, the earliest from Nov 17, 2025, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| James John Walker - Officer | Option exercise | Common Stock | 200,000 | $3.00 | $600K | |
| James John Walker - Officer | Option exercise | Stock Options | 200,000 | $0.00 | - | |
| Tsun Yee Law - Director | Option exercise | Common Stock | 3,428 | $0.00 | - | |
| Tsun Yee Law - Director | Option exercise | Restricted Stock Units | 3,428 | $0.00 | - | |
| Diane Elizabeth Hare - Director | Option exercise | Common Stock | 3,428 | $0.00 | - | |
| Diane Elizabeth Hare - Director | Open-market sale | Common Stock | 2,228 | $26.31 | $59K | |
| Diane Elizabeth Hare - Director | Open-market sale | Common Stock | 1,000 | $27.04 | $27K | |
| Diane Elizabeth Hare - Director | Open-market sale | Common Stock | 100 | $27.84 | $3K | |
| Diane Elizabeth Hare - Director | Open-market sale | Common Stock | 100 | $28.87 | $3K | |
| Diane Elizabeth Hare - Director | Option exercise | Restricted Stock Units | 3,428 | $0.00 | - | |
| James John Walker - Officer | Option exercise | Common Stock | 70,000 | $3.00 | $210K | |
| James John Walker - Officer | Open-market sale | Common Stock | 46,145 | $26.18 | $1.21M | |
| James John Walker - Officer | Open-market sale | Common Stock | 22,380 | $27.06 | $606K | |
| James John Walker - Officer | Open-market sale | Common Stock | 1,475 | $27.90 | $41K | |
| James John Walker - Officer | Option exercise | Common Stock | 28,688 | $0.00 | - | |
| James John Walker - Officer | Open-market sale | Common Stock | 25,792 | $26.77 | $690K | |
| James John Walker - Officer | Open-market sale | Common Stock | 2,624 | $27.56 | $72K | |
| James John Walker - Officer | Open-market sale | Common Stock | 201 | $28.69 | $6K | |
| James John Walker - Officer | Open-market sale | Common Stock | 71 | $29.91 | $2K | |
| James John Walker - Officer | Open-market sale | Common Stock | 25,000 | $26.04 | $651K | |
| James John Walker - Officer | Option exercise | Stock Options | 70,000 | $0.00 | - | |
| James John Walker - Officer | Option exercise | Restricted Stock Units | 28,688 | $0.00 | - | |
 Jiang Yu - Officer | Open-market sale | Common Stock | 312,553 | $26.30 | $8.22M | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 168,626 | $27.16 | $4.58M | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 10,035 | $27.83 | $279K | |
| Jiang Yu - Officer | Option exercise | Common Stock | 200,000 | $3.00 | $600K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 3,571 | $28.98 | $103K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 5,215 | $29.91 | $156K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 125,021 | $26.30 | $3.29M | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 67,451 | $27.16 | $1.83M | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 4,014 | $27.83 | $112K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 1,429 | $28.98 | $41K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 2,085 | $29.91 | $62K | |
| Jiang Yu - Officer | Option exercise | Common Stock | 45,900 | $0.00 | - | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 30,250 | $26.29 | $795K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 13,050 | $27.07 | $353K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 1,400 | $27.83 | $39K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 500 | $28.89 | $14K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 700 | $29.91 | $21K | |
| Jiang Yu - Officer | Option exercise | Stock Options | 200,000 | $0.00 | - | |
| Jiang Yu - Officer | Option exercise | Restricted Stock Units | 45,900 | $0.00 | - | |
| Florent Heidet - Officer | Option exercise | Common Stock | 9,185 | $0.00 | - | |
| Florent Heidet - Officer | Open-market sale | Common Stock | 3,000 | $24.95 | $75K | |
| Florent Heidet - Officer | Option exercise | Restricted Stock Units | 9,185 | $0.00 | - | |
| Jaisun Garcha - Officer | Option exercise | Common Stock | 20,000 | $3.00 | $60K | |
| Jaisun Garcha - Officer | Open-market sale | Common Stock | 20,000 | $26.08 | $522K | |
| Jaisun Garcha - Officer | Open-market sale | Common Stock | 57 | $29.91 | $2K | |
| Jaisun Garcha - Officer | Option exercise | Stock Options | 20,000 | $0.00 | - | |
| Jaisun Garcha - Officer | Option exercise | Restricted Stock Units | 17,215 | $0.00 | - | |
| Jaisun Garcha - Officer | Option exercise | Common Stock | 17,215 | $0.00 | - | |
| Jaisun Garcha - Officer | Open-market sale | Common Stock | 15,223 | $26.84 | $409K | |
| Jaisun Garcha - Officer | Open-market sale | Common Stock | 1,761 | $27.59 | $49K | |
| Jaisun Garcha - Officer | Open-market sale | Common Stock | 174 | $28.81 | $5K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 312,553 | $26.30 | $8.22M | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 168,626 | $27.16 | $4.58M | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 10,035 | $27.83 | $279K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 3,571 | $28.98 | $103K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 5,215 | $29.91 | $156K | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Common Stock | 200,000 | $3.00 | $600K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 125,021 | $26.30 | $3.29M | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 67,451 | $27.16 | $1.83M | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 4,014 | $27.83 | $112K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 1,429 | $28.98 | $41K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 2,085 | $29.91 | $62K | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Stock Options | 200,000 | $0.00 | - | |
| Kenny Joe Yung Yu - Director | Option exercise | Common Stock | 3,428 | $0.00 | - | |
| Kenny Joe Yung Yu - Director | Option exercise | Restricted Stock Units | 3,428 | $0.00 | - | |
| Seth Jason Berl - Director | Option exercise | Common Stock | 7,500 | $0.00 | - | |
| Seth Jason Berl - Director | Open-market sale | Common Stock | 3,750 | $24.92 | $93K | |
| Seth Jason Berl - Director | Option exercise | Restricted Stock Units | 7,500 | $0.00 | - | |
| Seth Jason Berl - Director | Open-market sale | Common Stock | 3,664 | $27.69 | $101K | |
| James John Walker - Officer | Option exercise | Common Stock | 330,000 | $1.50 | $495K | |
| James John Walker - Officer | Option exercise | Stock Options | 330,000 | $0.00 | - | |
| Jaisun Garcha - Officer | Option exercise | Common Stock | 75,000 | $1.50 | $113K | |
| Jaisun Garcha - Officer | Option exercise | Common Stock | 20,000 | $3.00 | $60K | |
| Jaisun Garcha - Officer | Option exercise | Stock Options | 75,000 | $0.00 | - | |
| Jaisun Garcha - Officer | Option exercise | Stock Options | 20,000 | $0.00 | - | |
| Jiang Yu - Officer | Option exercise | Common Stock | 179,965 | $1.50 | $270K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 179,965 | $33.83 | $6.09M | |
| Jiang Yu - Officer | Option exercise | Common Stock | 196,474 | $1.50 | $295K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 196,474 | $34.42 | $6.76M | |
| Jiang Yu - Officer | Option exercise | Common Stock | 2,222 | $1.50 | $3K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 2,222 | $35.25 | $78K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 184,403 | $33.83 | $6.24M | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 201,320 | $34.42 | $6.93M | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 2,277 | $35.25 | $80K | |
| Jiang Yu - Officer | Option exercise | Common Stock | 19,584 | $1.50 | $29K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 19,584 | $30.76 | $602K | |
| Jiang Yu - Officer | Option exercise | Common Stock | 87,680 | $1.50 | $132K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 87,680 | $31.81 | $2.79M | |
| Jiang Yu - Officer | Option exercise | Common Stock | 10,975 | $1.50 | $16K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 10,975 | $32.84 | $360K | |
| Jiang Yu - Officer | Option exercise | Common Stock | 3,100 | $1.50 | $5K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 3,100 | $33.74 | $105K | |
| Jiang Yu - Officer | Option exercise | Stock Options | 378,661 | $0.00 | - | |
| Jiang Yu - Officer | Option exercise | Stock Options | 121,339 | $0.00 | - | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Common Stock | 179,965 | $1.50 | $270K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 179,965 | $33.83 | $6.09M | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Common Stock | 196,474 | $1.50 | $295K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 196,474 | $34.42 | $6.76M | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Common Stock | 2,222 | $1.50 | $3K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 2,222 | $35.25 | $78K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 184,403 | $33.83 | $6.24M | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 201,320 | $34.42 | $6.93M | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 2,277 | $35.25 | $80K | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Common Stock | 19,584 | $1.50 | $29K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 19,584 | $30.76 | $602K | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Common Stock | 87,680 | $1.50 | $132K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 87,680 | $31.81 | $2.79M | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Common Stock | 10,975 | $1.50 | $16K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 10,975 | $32.84 | $360K | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Common Stock | 3,100 | $1.50 | $5K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 3,100 | $33.74 | $105K | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Stock Options | 378,661 | $0.00 | - | |
| I Financial Ventures Group LLC - 10% Owner | Option exercise | Stock Options | 121,339 | $0.00 | - | |
| James John Walker - Officer | Option exercise | Common Stock | 170,000 | $1.50 | $255K | |
| James John Walker - Officer | Open-market sale | Common Stock | 86,098 | $33.64 | $2.90M | |
| James John Walker - Officer | Open-market sale | Common Stock | 76,171 | $34.37 | $2.62M | |
| James John Walker - Officer | Open-market sale | Common Stock | 7,731 | $35.26 | $273K | |
| James John Walker - Officer | Open-market sale | Common Stock | 13,581 | $33.66 | $457K | |
| James John Walker - Officer | Open-market sale | Common Stock | 10,609 | $34.38 | $365K | |
| James John Walker - Officer | Open-market sale | Common Stock | 810 | $35.27 | $29K | |
| James John Walker - Officer | Option exercise | Stock Options | 170,000 | $0.00 | - | |
| Jaisun Garcha - Officer | Option exercise | Common Stock | 75,000 | $1.50 | $113K | |
| Jaisun Garcha - Officer | Open-market sale | Common Stock | 39,845 | $33.66 | $1.34M | |
| Jaisun Garcha - Officer | Open-market sale | Common Stock | 31,163 | $34.38 | $1.07M | |
| Jaisun Garcha - Officer | Open-market sale | Common Stock | 3,992 | $35.23 | $141K | |
| Jaisun Garcha - Officer | Option exercise | Stock Options | 75,000 | $0.00 | - | |
| Diane Elizabeth Hare - Director | Option exercise | Common Stock | 20,000 | $3.00 | $60K | |
| Diane Elizabeth Hare - Director | Open-market sale | Common Stock | 19,850 | $28.70 | $570K | |
| Diane Elizabeth Hare - Director | Open-market sale | Common Stock | 150 | $29.08 | $4K | |
| Diane Elizabeth Hare - Director | Option exercise | Stock Options | 20,000 | $0.00 | - | |
| Seth Jason Berl - Director | Option exercise | Common Stock | 7,500 | $0.00 | - | |
| Seth Jason Berl - Director | Option exercise | Restricted Stock Units | 7,500 | $0.00 | - | |
| Tsun Yee Law - Director | Option exercise | Common Stock | 22,691 | $1.50 | $34K | |
| Tsun Yee Law - Director | Open-market sale | Common Stock | 22,691 | $32.26 | $732K | |
| Tsun Yee Law - Director | Option exercise | Common Stock | 7,309 | $1.50 | $11K | |
| Tsun Yee Law - Director | Open-market sale | Common Stock | 7,309 | $32.98 | $241K | |
| Tsun Yee Law - Director | Open-market sale | Common Stock | 18,670 | $32.25 | $602K | |
| Tsun Yee Law - Director | Open-market sale | Common Stock | 6,330 | $32.98 | $209K | |
| Tsun Yee Law - Director | Option exercise | Stock Options | 30,000 | $0.00 | - | |
| Kenny Joe Yung Yu - Director | Option exercise | Common Stock | 30,177 | $3.00 | $91K | |
| Kenny Joe Yung Yu - Director | Open-market sale | Common Stock | 30,177 | $32.25 | $973K | |
| Kenny Joe Yung Yu - Director | Option exercise | Common Stock | 9,823 | $3.00 | $29K | |
| Kenny Joe Yung Yu - Director | Open-market sale | Common Stock | 9,823 | $32.98 | $324K | |
| Kenny Joe Yung Yu - Director | Option exercise | Stock Options | 40,000 | $0.00 | - | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 337,612 | $30.06 | $10.15M | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 38,049 | $30.75 | $1.17M | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 2,813 | $31.43 | $88K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 325,633 | $28.44 | $9.26M | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 7,436 | $29.41 | $219K | |
| Jiang Yu - Officer | Open-market sale | Common Stock | 176,457 | $27.03 | $4.77M | |
| James John Walker - Officer | Open-market sale | Common Stock | 22,459 | $30.03 | $674K | |
| James John Walker - Officer | Open-market sale | Common Stock | 2,541 | $30.97 | $79K | |
| Diane Elizabeth Hare - Director | Option exercise | Common Stock | 14,640 | $3.00 | $44K | |
| Diane Elizabeth Hare - Director | Open-market sale | Common Stock | 14,640 | $32.24 | $472K | |
| Diane Elizabeth Hare - Director | Option exercise | Common Stock | 5,360 | $3.00 | $16K | |
| Diane Elizabeth Hare - Director | Open-market sale | Common Stock | 5,360 | $32.96 | $177K | |
| Diane Elizabeth Hare - Director | Option exercise | Stock Options | 20,000 | $0.00 | - | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 337,612 | $30.06 | $10.15M | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 38,049 | $30.75 | $1.17M | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 2,813 | $31.43 | $88K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 325,633 | $28.44 | $9.26M | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 7,436 | $29.41 | $219K | |
| I Financial Ventures Group LLC - 10% Owner | Open-market sale | Common Stock | 176,457 | $27.03 | $4.77M | |
| Jaisun Garcha - Officer | Grant or award | Restricted Stock Units | 53,415 | $0.00 | - | |
| Kenny Joe Yung Yu - Director | Grant or award | Restricted Stock Units | 2,968 | $0.00 | - | |
| Diane Elizabeth Hare - Director | Grant or award | Restricted Stock Units | 2,968 | $0.00 | - | |
| Seth Jason Berl - Director | Grant or award | Restricted Stock Units | 2,968 | $0.00 | - | |
| Jiang Yu - Officer | Grant or award | Restricted Stock Units | 183,978 | $0.00 | - |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
Nano Nuclear Energy Inc. (NNE) had 10 insider filings in the last 90 days, with the most recent on 2026-08-26. The full record for NNE runs to 33 Form 4 filings, the earliest from 2025-11-17. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of NNE were filed in the last 90 days.
44 insider sales of NNE were filed in the last 90 days, totaling $43.09M.
This page tracks NNE Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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