X0508 4 2026-01-28 0 0001923891 Nano Nuclear Energy Inc. NNE 0002011890 I Financial Ventures Group LLC 10 TIMES SQUARE, 30TH FLOOR NEW YORK NY 10018 0 0 1 0 1 Common Stock 2026-01-28 4 M 0 179965 1.5 A 9291965 D Common Stock 2026-01-28 4 S 0 179965 33.8268 D 9112000 D Common Stock 2026-01-28 4 M 0 196474 1.5 A 9308474 D Common Stock 2026-01-28 4 S 0 196474 34.4232 D 9112000 D Common Stock 2026-01-28 4 M 0 2222 1.5 A 9114222 D Common Stock 2026-01-28 4 S 0 2222 35.2500 D 9112000 D Common Stock 2026-01-28 4 S 0 184403 33.8268 D 8927597 D Common Stock 2026-01-28 4 S 0 201320 34.4232 D 8726277 D Common Stock 2026-01-28 4 S 0 2277 35.2500 D 8724000 D Common Stock 2026-01-29 4 M 0 19584 1.5 A 8743584 D Common Stock 2026-01-29 4 S 0 19584 30.7623 D 8724000 D Common Stock 2026-01-29 4 M 0 87680 1.5 A 8811680 D Common Stock 2026-01-29 4 S 0 87680 31.8070 D 8724000 D Common Stock 2026-01-29 4 M 0 10975 1.5 A 8734975 D Common Stock 2026-01-29 4 S 0 10975 32.8367 D 8724000 D Common Stock 2026-01-29 4 M 0 3100 1.5 A 8727100 D Common Stock 2026-01-29 4 S 0 3100 33.7406 D 8724000 D Stock Options 1.5 2026-01-28 4 M 0 378661 0 D Common Stock 378661 321339 D Stock Options 1.5 2026-01-29 4 M 0 121339 0 D Common Stock 378661 200000 D 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 $1.50 per share, which were fully vested and exercisable on February 10, 2023, with expiry on February 10, 2026. On January 28, 2026, such options were exercised. The reporting person is the sole shareholder and director of I Financial Ventures Group LLC ("I Financial"), a limited liability company incorporated under the laws of Delaware, which is the record holder of the securities reported herein. The reporting person, as such, has investment control over the securities of the issuer held by I Financial and may be deemed the beneficial owner of such securities. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person through I Financial, in September 2025, and was executed in the account of I Financial. This transaction was executed in multiple trades during the day at prices ranging from $33.1000 to $34.0950. 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. This transaction was executed in multiple trades during the day at prices ranging from $34.1000 to $34.9600. 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. This transaction was executed at a price of $35.2500. 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. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person through I Financial, in September 2025, and was executed in the account of I Financial. This transaction was executed in multiple trades during the day at prices ranging from $33.1000 to $34.0950. 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. This transaction was executed in multiple trades during the day at prices ranging from $34.1000 to $34.9600. 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. This transaction was executed at a price of $35.2500. 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. 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 $1.50 per share, which were fully vested and exercisable on February 10, 2023, with expiry on February 10, 2026. On January 29, 2026, such options were exercised. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person through I Financial, in September 2025, and was executed in the account of I Financial. This transaction was executed in multiple trades during the day at prices ranging from $30.2500 to $31.2400. 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. This transaction was executed in multiple trades during the day at prices ranging from $31.2600 to $32.2400. 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. This transaction was executed in multiple trades during the day at prices ranging from $32.3300 to $33.3100. 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. This transaction was executed in multiple trades during the day at prices ranging from $33.3300 to $34.0000. 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. /s/ Jiang Yu, Sole Shareholder and Director of I Financial Ventures Group LLC 2026-01-30