Walker James John — SEC Form 4 filings
SEC reporting owner CIK 2021757. 10 Form 4 filings on record with FilingPulse; latest filed 2026-09-03.
Transaction summary — filings shown
Covers all 10 filings on record, filed 2025-03-17 to 2026-09-03. 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): 18 legs across 5 filings — 393,688 shares, $11,547,549 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 13.
- Largest priced transaction: sale of 86,098 shares @ $33.64 ($2,896,664) in Nano Nuclear Energy Inc., filed 2026-01-30.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Nano Nuclear Energy Inc. (NNE) | Chief Executive Officer, Director | 10 | — | 18 legs · 393,688 sh · $11,547,549 | 13 |
Form 4 filings — Walker James John
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-03 | 4 | Nano Nuclear Energy Inc. (NNE) | Sale (S): 25,000 @ $17.44 | EDGAR |
| 2026-09-03 | 4 | Nano Nuclear Energy Inc. (NNE) | Sale (S): 25,000 @ $17.77 | EDGAR |
| 2026-08-26 | 4/A | Nano Nuclear Energy Inc. (NNE) | Option exercise (M): 200,000 @ $3 · Option exercise (M): 200,000 (derivative) @ $0 | EDGAR |
| 2026-06-05 | 4 | Nano Nuclear Energy Inc. (NNE) | 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 |
| 2026-02-04 | 4 | Nano Nuclear Energy Inc. (NNE) | Option exercise (M): 330,000 @ $1.50 · Option exercise (M): 330,000 (derivative) @ $0 | EDGAR |
| 2026-01-30 | 4 | Nano Nuclear Energy Inc. (NNE) | 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 |
| 2025-12-30 | 4 | Nano Nuclear Energy Inc. (NNE) | Sale (S): 22,459 @ $30.03 · Sale (S): 2,541 @ $30.97 | EDGAR |
| 2025-11-17 | 4 | Nano Nuclear Energy Inc. (NNE) | Grant/award (A): 89,022 (derivative) @ $0 | EDGAR |
| 2025-06-05 | 4 | Nano Nuclear Energy Inc. (NNE) | Grant/award (A): 86,064 (derivative) @ $0 | EDGAR |
| 2025-03-17 | 4 | Nano Nuclear Energy Inc. (NNE) | Grant/award (A): 300,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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