Insider Ledger
NNE insider buying and SEC filings, explained
Nano Nuclear Energy Inc. · CIK 1923891
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Electric Services
- State of incorporation
- NV
- Fiscal year end
- Sep 30
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$270K
Planned sales (10b5-1)
$177.7M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Sep 3, 2026 | Planned (10b5-1) | James John Walker (CEO and Director) sold 25,000 shares at about $17.77 ($444K), marked as a 10b5-1 plan trade. Holdings down 4% to 635,000 shares. | SEC filing Filed Sep 3, 2026 |
| Sep 1–2, 2026 | Planned (10b5-1) | Jiang Yu (Chair and Director) sold 474,500 shares indirectly (by entity) between Sep 1 and Sep 2 at about $17.46 ($8.3M), marked as a 10b5-1 plan trade. Holdings by entity down 6% to 7,749,500 shares. | SEC filing Filed Sep 3, 2026 |
| Sep 1, 2026 | Planned (10b5-1) | James John Walker (CEO and Director) sold 25,000 shares at about $17.44 ($436K), marked as a 10b5-1 plan trade. Holdings down 4% to 660,000 shares. | SEC filing Filed Sep 3, 2026 |
| Jun 3, 2026 | Planned (10b5-1) | Diane Elizabeth Hare (Director) sold 3,428 shares at about $26.64 ($91K), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Jun 5, 2026 |
| Jun 3, 2026 | Planned (10b5-1) | James John Walker (CEO and Director) sold 123,688 shares at about $26.49 ($3.3M), marked as a 10b5-1 plan trade. Holdings down 18% to 555,000 shares. | SEC filing Filed Jun 5, 2026 |
| Jun 3, 2026 | Planned (10b5-1) | Jiang Yu (Chair and Director) sold 745,900 shares directly and indirectly (by entity) at about $26.68 ($19.9M), marked as a 10b5-1 plan trade. Direct holdings down 1% to 8,224,000 shares. | SEC filing Filed Jun 5, 2026 |
| Jun 5, 2026 | Sale | Florent Heidet (Chief Technology Officer) sold 3,000 shares at about $24.95 ($75K). Holdings down 33% to 6,185 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 5, 2026 |
| Jun 3, 2026 | Planned (10b5-1) | Jaisun Garcha (CFO) sold 37,215 shares at about $26.48 ($985K), marked as a 10b5-1 plan trade. Holdings down 10% to 345,000 shares. | SEC filing Filed Jun 5, 2026 |
| Jun 3, 2026 | Planned (10b5-1) | I Financial Ventures Group LLC (10% owner) sold 700,000 shares at about $26.68 ($18.7M), marked as a 10b5-1 plan trade. Holdings down 8% to 8,224,000 shares. | SEC filing Filed Jun 5, 2026 |
| Jun 5, 2026 | Sale | Seth Jason Berl (Director) sold 3,750 shares at about $24.92 ($93K). Holdings down 33% to 7,586 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 5, 2026 |
| Mar 2, 2026 | Sale | Seth Jason Berl (Director) sold 3,664 shares at about $27.69 ($101K). Holdings down 49% to 3,836 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 4, 2026 |
| Jan 28–29, 2026 | Planned (10b5-1) | Jiang Yu (Chair and Director) sold 888,000 shares indirectly (by entity) between Jan 28 and Jan 29 at about $33.82 ($30.0M), marked as a 10b5-1 plan trade. Holdings by entity down 9% to 8,724,000 shares. | SEC filing Filed Jan 30, 2026 |
| Jan 28–29, 2026 | Planned (10b5-1) | I Financial Ventures Group LLC (10% owner) sold 888,000 shares between Jan 28 and Jan 29 at about $33.82 ($30.0M), marked as a 10b5-1 plan trade. Holdings down 9% to 8,724,000 shares. | SEC filing Filed Jan 30, 2026 |
| Jan 28, 2026 | Planned (10b5-1) | James John Walker (CEO and Director) sold 195,000 shares at about $34.04 ($6.6M), marked as a 10b5-1 plan trade. Holdings down 44% to 250,000 shares. | SEC filing Filed Jan 30, 2026 |
| Jan 28, 2026 | Planned (10b5-1) | Jaisun Garcha (CFO) sold 75,000 shares at about $34.04 ($2.6M), marked as a 10b5-1 plan trade. Holdings down 23% to 250,000 shares. | SEC filing Filed Jan 30, 2026 |
| Jan 5, 2026 | Planned (10b5-1) | Diane Elizabeth Hare (Director) sold 20,000 shares at about $28.70 ($574K), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Jan 6, 2026 |
| Dec 24–29, 2025 | Planned (10b5-1) | Jiang Yu (Chair and Director) sold 888,000 shares indirectly (by entity) between Dec 24, 2025 and Dec 29, 2025 at about $28.89 ($25.7M), marked as a 10b5-1 plan trade. Holdings by entity down 9% to 9,112,000 shares. | SEC filing Filed Dec 30, 2025 |
| Dec 24, 2025 | Planned (10b5-1) | James John Walker (CEO and Director) sold 25,000 shares at about $30.13 ($753K), marked as a 10b5-1 plan trade. Holdings down 8% to 275,000 shares. | SEC filing Filed Dec 30, 2025 |
| Dec 24–29, 2025 | Planned (10b5-1) | I Financial Ventures Group LLC (10% owner) sold 888,000 shares indirectly (by entity) between Dec 24, 2025 and Dec 29, 2025 at about $28.89 ($25.7M), marked as a 10b5-1 plan trade. Holdings by entity down 9% to 9,112,000 shares. | SEC filing Filed Dec 30, 2025 |
| Dec 23, 2025 | Planned (10b5-1) | Tsun Yee Law (Director) sold 55,000 shares at about $32.44 ($1.8M), marked as a 10b5-1 plan trade. Holdings down 42% to 75,000 shares. | SEC filing Filed Dec 30, 2025 |
| Dec 23, 2025 | Planned (10b5-1) | Kenny Joe Yung Yu (Director) sold 40,000 shares at about $32.43 ($1.3M), marked as a 10b5-1 plan trade. Holdings down 73% to 15,000 shares. | SEC filing Filed Dec 30, 2025 |
| Dec 23, 2025 | Planned (10b5-1) | Diane Elizabeth Hare (Director) sold 20,000 shares at about $32.43 ($649K), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Dec 30, 2025 |
35 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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