Nano Nuclear Energy (NNE) 4: Hare Diane Elizabeth bought 20,000 shares of Common Stock a… (Jan 6, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-01-05 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: Nano Nuclear Energy Inc. (NNE) CIK: 0001923891 --- Reporting Owner --- Name: Hare Diane Elizabeth CIK: 0002021755 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-01-05 | Code: M (Exercise of derivative) Shares: +20,000 | Price: $3.00 Total Value: $60,000.00 Shares Owned After: 20,000 | Ownership: D (Direct) Footnotes: [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 January 5, 2026, such options were exercised. [Transaction #2] Security: Common Stock Date: 2026-01-05 | Code: S (Open market sale) Shares: -19,850 | Price: $28.70 Total Value: $569,673.17 Shares Owned After: 150 | Ownership: D (Direct) Footnotes: [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 $28.0000 to $28.9900. 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. [Transaction #3] Security: Common Stock Date: 2026-01-05 | Code: S (Open market sale) Shares: -150 | Price: $29.08 Total Value: $4,362.00 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F2] 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 at a price of $29.0800. 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. --- Derivative Transactions --- [Transaction #1] Security: Stock Options Date: 2026-01-05 | Code: M (Exercise of derivative) Shares: -20,000 | Price: $0.00 Shares Owned After: 5,000 | Ownership: D (Direct) Footnotes: [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 January 5, 2026, such options were exercised. [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 January 5, 2026, such options were exercised. [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 January 5, 2026, such options were exercised. --- Footnotes (Complete Index) --- 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 January 5, 2026, 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 $28.0000 to $28.9900. 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 at a price of $29.0800. 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/ /s/ Diane Elizabeth Hare (2026-01-06)