NNE insider transaction filings
Nano Nuclear Energy Inc. — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-09-03. Screen NNE transaction legs live →
Insider transaction summary — last 90 days
2026-06-24 to 2026-09-22, from the filings listed below: 4 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 4 legs across 3 filings by 2 insiders — 524,500 shares, $9,163,681 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 2.
- Largest priced transaction: sale of 332,569 shares @ $17.45 ($5,801,799) by Yu Jiang, filed 2026-09-03.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| Yu Jiang — President and Chairman, Director, 10% owner | 1 | — | 2 legs · 474,500 sh · $8,283,449 | — |
| Walker James John — Chief Executive Officer, Director | 3 | — | 2 legs · 50,000 sh · $880,232 | 2 |
Recent Form 4 filings — Nano Nuclear Energy Inc.
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-03 | 4 | Walker James John — Chief Executive Officer, Director | Sale (S): 25,000 @ $17.77 | EDGAR |
| 2026-09-03 | 4 | Yu Jiang — President and Chairman, Director, 10% owner | Sale (S): 332,569 @ $17.45 · Sale (S): 141,931 @ $17.48 | EDGAR |
| 2026-09-03 | 4 | Walker James John — Chief Executive Officer, Director | Sale (S): 25,000 @ $17.44 | EDGAR |
| 2026-08-26 | 4/A | Walker James John — Chief Executive Officer, Director | Option exercise (M): 200,000 @ $3 · Option exercise (M): 200,000 (derivative) @ $0 | EDGAR |
| 2026-06-05 | 4 | Law Tsun Yee — Director | Option exercise (M): 3,428 @ $0 · Option exercise (M): 3,428 (derivative) @ $0 | EDGAR |
| 2026-06-05 | 4 | Hare Diane Elizabeth — Director | Option exercise (M): 3,428 @ $0 · Sale (S): 2,228 @ $26.31 · Sale (S): 1,000 @ $27.04 · Sale (S): 100 @ $27.84 · Sale (S): 100 @ $28.87 · Option exercise (M): 3,428 (derivative) @ $0 | EDGAR |
| 2026-06-05 | 4 | Walker James John — Chief Executive Officer, Director | Option exercise (M): 70,000 @ $3 · Sale (S): 46,145 @ $26.18 · Sale (S): 22,380 @ $27.06 · Sale (S): 1,475 @ $27.90 · Option exercise (M): 28,688 @ $0 · Sale (S): 25,792 @ $26.77 · +6 more | EDGAR |
| 2026-06-05 | 4 | Yu Jiang — President and Chairman, Director, 10% owner | Sale (S): 312,553 @ $26.30 · Sale (S): 168,626 @ $27.16 · Sale (S): 10,035 @ $27.83 · Sale (S): 3,571 @ $28.98 · Sale (S): 5,215 @ $29.91 · Option exercise (M): 200,000 @ $3 · +13 more | EDGAR |
| 2026-06-05 | 4 | Heidet Florent — Chief Technology Officer | Option exercise (M): 9,185 @ $0 · Sale (S): 3,000 @ $24.95 · Option exercise (M): 9,185 (derivative) @ $0 | EDGAR |
| 2026-06-05 | 4 | Garcha Jaisun — Chief Financial Officer | Option exercise (M): 20,000 @ $3 · Sale (S): 20,000 @ $26.08 · Option exercise (M): 17,215 @ $0 · Sale (S): 15,223 @ $26.84 · Sale (S): 1,761 @ $27.59 · Sale (S): 174 @ $28.81 · +3 more | EDGAR |
| 2026-06-05 | 4 | I Financial Ventures Group LLC — 10% owner | Sale (S): 312,553 @ $26.30 · Sale (S): 168,626 @ $27.16 · Sale (S): 10,035 @ $27.83 · Sale (S): 3,571 @ $28.98 · Sale (S): 5,215 @ $29.91 · Option exercise (M): 200,000 @ $3 · +6 more | EDGAR |
| 2026-06-05 | 4 | Yu Kenny Joe Yung — Director | Option exercise (M): 3,428 @ $0 · Option exercise (M): 3,428 (derivative) @ $0 | EDGAR |
| 2026-06-05 | 4 | Berl Seth Jason — Director | Option exercise (M): 7,500 @ $0 · Sale (S): 3,750 @ $24.92 · Option exercise (M): 7,500 (derivative) @ $0 | EDGAR |
| 2026-03-04 | 4 | Berl Seth Jason — Director | Sale (S): 3,664 @ $27.69 | EDGAR |
| 2026-02-04 | 4 | Walker James John — Chief Executive Officer, Director | Option exercise (M): 330,000 @ $1.50 · Option exercise (M): 330,000 (derivative) @ $0 | EDGAR |
| 2026-02-04 | 4 | Garcha Jaisun — Chief Financial Officer | Option exercise (M): 75,000 @ $1.50 · Option exercise (M): 20,000 @ $3 · Option exercise (M): 75,000 (derivative) @ $0 · Option exercise (M): 20,000 (derivative) @ $0 | EDGAR |
| 2026-01-30 | 4 | Yu Jiang — President and Chairman, Director, 10% owner | Option exercise (M): 179,965 @ $1.50 · Sale (S): 179,965 @ $33.83 · Option exercise (M): 196,474 @ $1.50 · Sale (S): 196,474 @ $34.42 · Option exercise (M): 2,222 @ $1.50 · Sale (S): 2,222 @ $35.25 · +13 more | EDGAR |
| 2026-01-30 | 4 | I Financial Ventures Group LLC — 10% owner | Option exercise (M): 179,965 @ $1.50 · Sale (S): 179,965 @ $33.83 · Option exercise (M): 196,474 @ $1.50 · Sale (S): 196,474 @ $34.42 · Option exercise (M): 2,222 @ $1.50 · Sale (S): 2,222 @ $35.25 · +13 more | EDGAR |
| 2026-01-30 | 4 | Walker James John — Chief Executive Officer, Director | Option exercise (M): 170,000 @ $1.50 · Sale (S): 86,098 @ $33.64 · Sale (S): 76,171 @ $34.37 · Sale (S): 7,731 @ $35.26 · Sale (S): 13,581 @ $33.66 · Sale (S): 10,609 @ $34.38 · +2 more | EDGAR |
| 2026-01-30 | 4 | Garcha Jaisun — Chief Financial Officer | Option exercise (M): 75,000 @ $1.50 · Sale (S): 39,845 @ $33.66 · Sale (S): 31,163 @ $34.38 · Sale (S): 3,992 @ $35.23 · Option exercise (M): 75,000 (derivative) @ $0 | EDGAR |
| 2026-01-06 | 4 | Hare Diane Elizabeth — Director | Option exercise (M): 20,000 @ $3 · Sale (S): 19,850 @ $28.70 · Sale (S): 150 @ $29.08 · Option exercise (M): 20,000 (derivative) @ $0 | EDGAR |
| 2025-12-30 | 4 | Berl Seth Jason — Director | Option exercise (M): 7,500 @ $0 · Option exercise (M): 7,500 (derivative) @ $0 | EDGAR |
| 2025-12-30 | 4 | Law Tsun Yee — Director | Option exercise (M): 22,691 @ $1.50 · Sale (S): 22,691 @ $32.26 · Option exercise (M): 7,309 @ $1.50 · Sale (S): 7,309 @ $32.98 · Sale (S): 18,670 @ $32.25 · Sale (S): 6,330 @ $32.98 · +1 more | EDGAR |
| 2025-12-30 | 4 | Yu Kenny Joe Yung — Director | Option exercise (M): 30,177 @ $3 · Sale (S): 30,177 @ $32.25 · Option exercise (M): 9,823 @ $3 · Sale (S): 9,823 @ $32.98 · Option exercise (M): 40,000 (derivative) @ $0 | EDGAR |
| 2025-12-30 | 4 | Yu Jiang — President and Chairman, Director, 10% owner | Sale (S): 337,612 @ $30.06 · Sale (S): 38,049 @ $30.75 · Sale (S): 2,813 @ $31.43 · Sale (S): 325,633 @ $28.44 · Sale (S): 7,436 @ $29.41 · Sale (S): 176,457 @ $27.03 | EDGAR |
| 2025-12-30 | 4 | Walker James John — Chief Executive Officer, Director | Sale (S): 22,459 @ $30.03 · Sale (S): 2,541 @ $30.97 | EDGAR |
| 2025-12-30 | 4 | Hare Diane Elizabeth — Director | Option exercise (M): 14,640 @ $3 · Sale (S): 14,640 @ $32.24 · Option exercise (M): 5,360 @ $3 · Sale (S): 5,360 @ $32.96 · Option exercise (M): 20,000 (derivative) @ $0 | EDGAR |
| 2025-12-30 | 4 | I Financial Ventures Group LLC — 10% owner | Sale (S): 337,612 @ $30.06 · Sale (S): 38,049 @ $30.75 · Sale (S): 2,813 @ $31.43 · Sale (S): 325,633 @ $28.44 · Sale (S): 7,436 @ $29.41 · Sale (S): 176,457 @ $27.03 | EDGAR |
| 2025-11-17 | 4 | Walker James John — Chief Executive Officer, Director | Grant/award (A): 89,022 (derivative) @ $0 | EDGAR |
| 2025-11-17 | 4 | Yu Jiang — President and Chairman, Director, 10% owner | Grant/award (A): 183,978 (derivative) @ $0 | EDGAR |
| 2025-11-17 | 4 | Berl Seth Jason — Director | Grant/award (A): 2,968 (derivative) @ $0 | EDGAR |
| 2025-11-17 | 4 | Hare Diane Elizabeth — Director | Grant/award (A): 2,968 (derivative) @ $0 | EDGAR |
| 2025-11-17 | 4 | Yu Kenny Joe Yung — Director | Grant/award (A): 2,968 (derivative) @ $0 | EDGAR |
| 2025-11-17 | 4 | Law Tsun Yee — Director | Grant/award (A): 2,968 (derivative) @ $0 | EDGAR |
| 2025-11-17 | 4 | Heidet Florent — Chief Technology Officer | Grant/award (A): 11,277 (derivative) @ $0 | EDGAR |
| 2025-11-17 | 4 | Garcha Jaisun — Chief Financial Officer | Grant/award (A): 53,415 (derivative) @ $0 | EDGAR |
| 2025-06-25 | 4 | Berl Seth Jason — Director | Grant/award (A): 15,000 (derivative) @ $0 | EDGAR |
| 2025-06-06 | 4 | Hare Diane Elizabeth — Director | Grant/award (A): 3,428 (derivative) @ $0 | EDGAR |
| 2025-06-05 | 4 | Yu Kenny Joe Yung — Director | Grant/award (A): 3,428 (derivative) @ $0 | EDGAR |
| 2025-06-05 | 4 | Yu Jiang — President and Chairman, Director, 10% owner | Grant/award (A): 137,700 (derivative) @ $0 | EDGAR |
| 2025-06-05 | 4 | Walker James John — Chief Executive Officer, Director | Grant/award (A): 86,064 (derivative) @ $0 | EDGAR |
| 2025-06-05 | 4 | Law Tsun Yee — Director | Grant/award (A): 3,428 (derivative) @ $0 | EDGAR |
| 2025-06-05 | 4 | Heidet Florent — Chief Technology Officer | Grant/award (A): 27,555 (derivative) @ $0 | EDGAR |
| 2025-06-05 | 4 | Garcha Jaisun — Chief Financial Officer | Grant/award (A): 51,645 (derivative) @ $0 | EDGAR |
| 2025-03-18 | 4 | Heidet Florent — Chief Technology Officer | Grant/award (A): 338,000 (derivative) @ $0 | EDGAR |
| 2025-03-18 | 4 | Yu Kenny Joe Yung — Director | Grant/award (A): 5,000 (derivative) @ $0 | EDGAR |
| 2025-03-17 | 4 | Law Tsun Yee — Director | Grant/award (A): 5,000 (derivative) @ $0 | EDGAR |
| 2025-03-17 | 4 | Garcha Jaisun — Chief Financial Officer | Grant/award (A): 150,000 (derivative) @ $0 | EDGAR |
| 2025-03-17 | 4 | Walker James John — Chief Executive Officer, Director | Grant/award (A): 300,000 (derivative) @ $0 | EDGAR |
| 2025-03-17 | 4 | Yu Jiang — President and Chairman, Director, 10% owner | Grant/award (A): 300,000 (derivative) @ $0 | EDGAR |
Recent 8-K events — Nano Nuclear Energy Inc.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-09-17 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2026-08-13 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-06-25 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers | EDGAR |
| 2026-06-25 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-29 | 8-K | 1.01 — Entry into a Material Definitive Agreement 2.01 — Completion of Acquisition or Disposition of Assets 3.02 — Unregistered Sales of Equity Securities 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-20 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-15 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-04-09 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-04-08 | 8-K | 8.01 — Other Events | EDGAR |
| 2026-04-06 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
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