Walker James John 4
4 · Nano Nuclear Energy Inc. · Filed Jun 5, 2026
Research Summary
AI-generated summary of this filing
Nano Nuclear (NNE) CEO Walker James Exercises Options and Sells Shares
What Happened
- Walker James, CEO of Nano Nuclear Energy Inc. (NNE), exercised stock option(s) and had RSUs settle on June 3, 2026, and sold shares in multiple open‑market transactions the same day.
- He exercised 70,000 options at $3.00 per share (cash cost $210,000) and received 28,688 shares from RSU settlement (no cash payment). That yielded 98,688 newly acquired shares.
- He sold a total of 123,688 shares in several trades on June 3, 2026, for aggregate proceeds of approximately $3,276,423.
Key Details
- Transaction date: June 3, 2026 (Form 4 filed June 5, 2026).
- Options exercised: 70,000 shares @ $3.00 (F1). RSU settlement: 28,688 shares (F2).
- Open‑market sales: 123,688 shares across multiple trades, weighted/individual prices ranged roughly from $25.71 to $29.91; total proceeds ≈ $3,276,423. One sale executed at $29.91 (F10); other price ranges listed in footnotes F4–F9 and F11.
- One sale was effected pursuant to a Rule 10b5‑1 trading plan (F3).
- Shares owned after these transactions: not specified in the provided filing details.
- Filing timeliness: transaction reported on a Form 4 filed two days after the trades (not flagged as late in the filing provided).
Context
- The filing shows an option exercise and RSU vesting followed by substantial open‑market sales. Selling shares acquired on exercise or from vested awards is common (often to cover exercise costs, taxes, or diversify) and does not by itself indicate an opinion on the company.
- The presence of a 10b5‑1 plan for at least one sale indicates at least part of the selling activity was pre‑arranged. The derivative entries with $0 reflect conversion/settlement (exercise or RSU settlement), not a cash sale price.
Insider Transaction Report
Form 4
Walker James John
DirectorChief Executive Officer
Transactions
- Exercise/Conversion
Common Stock
[F1]2026-06-03$3.00/sh+70,000$210,000→ 650,000 total - Sale
Common Stock
[F3][F4]2026-06-03$26.18/sh−46,145$1,208,030→ 603,855 total - Sale
Common Stock
[F3][F5]2026-06-03$27.06/sh−22,380$605,670→ 581,475 total - Sale
Common Stock
[F3][F6]2026-06-03$27.90/sh−1,475$41,153→ 580,000 total - Exercise/Conversion
Common Stock
[F2]2026-06-03+28,688→ 608,688 total - Sale
Common Stock
[F3][F7]2026-06-03$26.77/sh−25,792$690,426→ 582,896 total - Sale
Common Stock
[F3][F8]2026-06-03$27.55/sh−2,624$72,304→ 580,272 total - Sale
Common Stock
[F3][F9]2026-06-03$28.69/sh−201$5,766→ 580,071 total - Sale
Common Stock
[F3][F10]2026-06-03$29.91/sh−71$2,124→ 580,000 total - Sale
Common Stock
[F3][F11]2026-06-03$26.04/sh−25,000$650,950→ 555,000 total - Exercise/Conversion
Stock Options
[F1]2026-06-03−70,000→ 430,000 totalExercise: $3.00→ Common Stock (70,000 underlying) - Exercise/Conversion
Restricted Stock Units
[F2]2026-06-03−28,688→ 146,398 totalExercise: $0.00→ Common Stock (28,688 underlying)
Footnotes (11)
- [F1]Represents shares of common stock issued upon exercise of certain options originally granted to the reporting person at the exercise price of $3.00 per share, which were fully vested and exercisable on June 7, 2023, with expiry on June 7, 2026. On June 3, 2026, such options were exercised.
- [F10]This transaction was executed at a price of $29.9100. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
- [F11]This transaction was executed in multiple trades during the day at prices ranging from $25.7100 to $26.3700. The weighted-average price is reported above. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
- [F2]Represents shares of common stock issued upon the settlement of certain Restricted Stock Units ("RSUs") granted on June 3, 2025 under the Issuer's 2025 Equity Incentive Plan based on a value per share of $29.18, the closing price of the Issuer's common stock as reported on The Nasdaq Capital Market on June 3, 2025. On June 3, 2026, one third (1/3) of such RSUs were vested and settled.
- [F3]This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in September 2025.
- [F4]This transaction was executed in multiple trades during the day at prices ranging from $25.7100 to $26.7000. The weighted-average price is reported above. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
- [F5]This transaction was executed in multiple trades during the day at prices ranging from $26.7050 to $27.6800. The weighted-average price is reported above. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
- [F6]This transaction was executed in multiple trades during the day at prices ranging from $27.7200 to $28.3750. The weighted-average price is reported above. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
- [F7]This transaction was executed in multiple trades during the day at prices ranging from $26.3700 to $27.3400. The weighted-average price is reported above. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
- [F8]This transaction was executed in multiple trades during the day at prices ranging from $27.3700 to $27.9400. The weighted-average price is reported above. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
- [F9]This transaction was executed in multiple trades during the day at prices ranging from $28.6600 to $28.9000. The weighted-average price is reported above. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
Signature
/s/ James John Walker|2026-06-05