Nano Nuclear Energy (NNE) CEO exercises 330,000 options into common stock

Rhea-AI Filing Summary

Nano Nuclear Energy Inc. director and Chief Executive Officer James John Walker exercised previously granted stock options and received additional common shares. On February 2, 2026, he exercised options for 330,000 shares of common stock at an exercise price of $1.50 per share. These options were fully vested and exercisable since February 10, 2023, and were set to expire on February 10, 2026. Following the transaction, he directly owned 580,000 shares of common stock and 500,000 stock options.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Walker James John

(Last) (First) (Middle)

10 TIMES SQUARE, 30TH FLOOR

(Street)

NEW YORK NY 10018

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Nano Nuclear Energy Inc. [ NNE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/02/2026		M(1)		330,000(1)	A	$1.5	580,000	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Options(1)	$1.5	02/02/2026		M			330,000	(1)	(1)	Common Stock	330,000	$0	500,000	D

Explanation of Responses:

1. 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 February 2, 2026, such options were exercised.

	/s/ James John Walker	02/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Nano Nuclear Energy (NNE) report in this Form 4?

Nano Nuclear Energy reported that CEO and director James John Walker exercised stock options for 330,000 shares of common stock at $1.50 per share. The options were fully vested and exercisable before expiry in February 2026, increasing his directly held common shares.

How many Nano Nuclear Energy (NNE) shares did the CEO acquire and at what price?

James John Walker acquired 330,000 shares of Nano Nuclear Energy common stock at an exercise price of $1.50 per share. These shares were issued upon exercising previously granted stock options that were already fully vested and exercisable before their February 10, 2026 expiration date.

What is James John Walker’s role at Nano Nuclear Energy (NNE)?

James John Walker is both a director and the Chief Executive Officer of Nano Nuclear Energy Inc. His dual role means he participates in the company’s strategic oversight as a board member while also managing day-to-day operations and execution as the top executive officer.

What do the exercised options at Nano Nuclear Energy (NNE) relate to?

The exercised options relate to stock options originally granted to James John Walker, permitting him to buy common shares at $1.50 per share. These options were fully vested and exercisable from February 10, 2023, and were scheduled to expire on February 10, 2026.

How many Nano Nuclear Energy (NNE) shares and options does the CEO hold after the transaction?

After the transaction, James John Walker directly beneficially owned 580,000 shares of Nano Nuclear Energy common stock and 500,000 stock options. These figures reflect his holdings immediately following the February 2, 2026 option exercise reported in this insider filing.

What does transaction code "M" mean in the Nano Nuclear Energy (NNE) Form 4?

Transaction code “M” indicates an exercise or conversion of a derivative security, such as a stock option, into underlying shares. Here, it shows James John Walker exercised stock options to receive 330,000 Nano Nuclear Energy common shares at the specified exercise price.