James John Walker - 03 Jun 2026 Form 4/A - Amendment Insider Report for Nano Nuclear Energy Inc. (NNE)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: NNE
Reported as of: 03 Jun 2026
Net transaction value: $0
SEC form: 4/A - Amendment
Accepted by SEC: 26 Aug 2026, 16:05:11 UTC
Original report date: 05 Jun 2026
Prior SEC filing: 04 Feb 2026
Next SEC filing: 03 Sep 2026
Source filing: View source filing
Reporting owner signature: /s/ James John Walker

Key filing fact

James John Walker filed Form 4/A - Amendment for Nano Nuclear Energy Inc. (NNE) on 26 Aug 2026.

Key facts

This page summarizes James John Walker's Form 4/A - Amendment filing for Nano Nuclear Energy Inc. (NNE).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 26 Aug 2026, 16:05.

Change

Previous filing in this sequence was filed on 04 Feb 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0002021757 Primary reporting owner

Walker James John

Relationship: Chief Executive Officer, Director
Address: 10 TIMES SQUARE,, 30TH FLOOR, NEW YORK
Signature: /s/ James John Walker
Signature date: 26 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NNE transaction

Common Stock

Options Exercise

Transaction value
Shares: +200,000
Change %: +34%
Price: $3.00^*
Shares after: 780,000
Date: 03 Jun 2026
Ownership: Direct
Footnotes: F1, F2, F4

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

NNE transaction Derivative

Stock Options

Options Exercise

Transaction value
Shares: -200,000
Change %: -40%
Price: $0.000000^*
Shares after: 300,000
Date: 03 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 200,000
Exercise price: $3.00
Footnotes: F1, F3, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote 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.

Footnote F2

This number does not reflect subsequent sales of the 123,688 shares of common stock reported in the Form 4 originally filed on June 5, 2026.

Footnote F3

Represents options granted on March 13, 2025 ("Grant Date") under the Issuer's 2023 Stock Option Plan #2 to purchase an aggregate of 300,000 shares of common stock, par value $0.0001 per share of the Issuer. The options shall vest and become exercisable on the Grant Date immediately. The options are valid for 10 years from the Grant Date and will expire on March 13, 2035.

Footnote F4

This Form 4/A is being filed solely to amend the Form 4 originally filed by the reporting person on June 5, 2026 to reflect (i) the 200,000 shares of common stock acquired by such reporting person upon exercise of 200,000 options and 780,000 shares of common stock beneficially owned following such option exercise under Columns 3, 4, and 5 of Table I; and (ii) the 200,000 options exercised by such reporting person and the 300,000 options owned following such option exercise under Columns 5,7 and 9 of Table II. As of the date of this report, the reporting person holds 685,000 shares of common stock, and 300,000 options, of the Issuer, respectively.