Form 4: Nano Nuclear Director Sells Shares After Option Exercise

Nano Nuclear Energy Director Kenny Joe Yung Yu exercised stock options and subsequently sold 40,000 shares of common stock on December 23, 2025, under a 10b5-1 trading plan.

Summary

• Director Kenny Joe Yung Yu of Nano Nuclear Energy Inc. (NNE) exercised 40,000 stock options on December 23, 2025, at an exercise price of $3.00 per share.
• Immediately following the exercise, Mr. Yu sold all 40,000 shares of common stock acquired.
• The sales were executed in two tranches: 30,177 shares at a weighted-average price of $32.2517 and 9,823 shares at a weighted-average price of $32.9784.
• These transactions were conducted pursuant to a Rule 10b5-1 trading plan adopted by Mr. Yu in September 2025.
• After these transactions, Mr. Yu directly beneficially owns 15,000 shares of common stock and 5,000 derivative stock options.
• The options exercised were fully vested and exercisable as of June 7, 2023, and had an expiry date of June 7, 2026.

Sentiment

Score: 5

Explanation: The sentiment is neutral as this is a pre-planned insider transaction (Rule 10b5-1 plan) for personal liquidity, rather than a reaction to new company performance or strategic shifts. While a director selling shares can sometimes be viewed negatively, the pre-planned nature mitigates this concern, and the significant profit realized is a positive for the individual.

Positives

• The director realized a significant gain by exercising options at $3.00 and selling shares at an average price exceeding $32.00, indicating substantial personal profit from the company's stock performance.
• The transaction was executed under a pre-arranged Rule 10b5-1 trading plan, which suggests a planned liquidity event rather than a reaction to recent company news.

Negatives

• The sale of 40,000 shares by a director reduces the overall insider ownership, which some investors might interpret as a lack of confidence, despite the pre-planned nature of the transaction.

Future Outlook

This filing does not contain forward-looking statements or guidance regarding the company's future performance or strategic direction, as it is a report on an insider's personal trading activity.

Management Comments

• The reporting person 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.

Industry Context

This insider transaction is specific to Nano Nuclear Energy Inc. and does not provide direct insights into broader industry trends or competitive landscape. It reflects a director's personal financial planning rather than a corporate strategic move.

Stakeholder Impact

• Shareholders: May note the reduction in direct insider ownership, but the pre-planned nature of the sale under a 10b5-1 plan typically lessens concerns about immediate negative implications for the company's outlook.

Key Dates

Keywords

Nano Nuclear Energy, NNE, Insider Trading, Form 4, Stock Options, Director Sale, 10b5-1 Plan, Equity Transaction