Yu Kenny Joe Yung 4

4 · Nano Nuclear Energy Inc. · Filed Dec 30, 2025

Form 4

Period: 2025-12-23

Director

Transactions

Exercise/Conversion
Common Stock
[F1]
2025-12-23$3.00/sh+30,177$90,531→ 45,177 total
Sale
Common Stock
[F2][F3]
2025-12-23$32.25/sh−30,177$973,260→ 15,000 total
Exercise/Conversion
Common Stock
[F1]
2025-12-23$3.00/sh+9,823$29,469→ 24,823 total
Sale
Common Stock
[F2][F4]
2025-12-23$32.98/sh−9,823$323,947→ 15,000 total
Exercise/Conversion
Stock Options
[F1]
2025-12-23−40,000→ 5,000 total
Exercise: $3.00→ Common Stock (40,000 underlying)

Footnotes (4)

[F1]Represents the number of 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 December 23, 2025, such options were exercised.
[F2]This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in September 2025.
[F3]This transaction was executed in multiple trades during the day at prices ranging from $31.7400 to $32.7300. 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.
[F4]This transaction was executed in multiple trades during the day at prices ranging from $32.7400 to $33.5000. 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/ Kenny Joe Yung Yu|2025-12-30

Documents

1 file