James John Walker

CIK: 0002021757

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)18 (66.7%)

Position reduction

Option Exercises (M)5 (18.5%)

Derivative conversions

Awards (A)4 (14.8%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

NNE

Nano Nuclear Energy Inc.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (27 total)

NNE
Nano Nuclear Energy Inc.
Oct 1, 2026
Award(A)
Restricted Stock Units
Direct
257.8K shares-
NNE
Nano Nuclear Energy Inc.
Sep 3, 2026
Sale(S)
Direct
25K shares at avg. $17.77$444K
NNE
Nano Nuclear Energy Inc.
Sep 1, 2026
Sale(S)
Direct
25K shares at avg. $17.44$436K
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Exercise(M)
Direct
200K shares at avg. $3.00$600K
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Sale(S)
Direct
46.1K shares at avg. $26.18$1.2M
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Sale(S)
Direct
22.4K shares at avg. $27.06$606K
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Sale(S)
Direct
1.5K shares at avg. $27.90$41K
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Exercise(M)
Direct
28.7K shares-
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Sale(S)
Direct
25.8K shares at avg. $26.77$690K
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Sale(S)
Direct
2.6K shares at avg. $27.55$72K
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Sale(S)
Direct
201 shares at avg. $28.69$6K
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Sale(S)
Direct
71 shares at avg. $29.91$2K
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Sale(S)
Direct
25K shares at avg. $26.04$651K
NNE
Nano Nuclear Energy Inc.
Jun 3, 2026
Exercise(M)
Direct
70K shares at avg. $3.00$210K
NNE
Nano Nuclear Energy Inc.
Feb 2, 2026
Exercise(M)
Direct
330K shares at avg. $1.50$495K
NNE
Nano Nuclear Energy Inc.
Jan 28, 2026
Sale(S)
Direct
10.6K shares at avg. $34.38$365K
NNE
Nano Nuclear Energy Inc.
Jan 28, 2026
Exercise(M)
Direct
170K shares at avg. $1.50$255K
NNE
Nano Nuclear Energy Inc.
Jan 28, 2026
Sale(S)
Direct
86.1K shares at avg. $33.64$2.9M
NNE
Nano Nuclear Energy Inc.
Jan 28, 2026
Sale(S)
Direct
76.2K shares at avg. $34.37$2.6M
NNE
Nano Nuclear Energy Inc.
Jan 28, 2026
Sale(S)
Direct
7.7K shares at avg. $35.26$273K
NNE
Nano Nuclear Energy Inc.
Jan 28, 2026
Sale(S)
Direct
13.6K shares at avg. $33.66$457K
NNE
Nano Nuclear Energy Inc.
Jan 28, 2026
Sale(S)
Direct
810 shares at avg. $35.27$29K
NNE
Nano Nuclear Energy Inc.
Dec 24, 2025
Sale(S)
Direct
22.5K shares at avg. $30.03$674K
NNE
Nano Nuclear Energy Inc.
Dec 24, 2025
Sale(S)
Direct
2.5K shares at avg. $30.97$79K
NNE
Nano Nuclear Energy Inc.
Nov 13, 2025
Award(A)
Restricted Stock Units
Direct
89K shares-

		Type	Shares	Price		Ownership
Oct 1, 2026	NNE Nano Nuclear Energy Inc.	Award(A) Restricted Stock Units	257,790	-	-	Direct
Sep 3, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	25,000	$17.77	$444,168	Direct
Sep 1, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	25,000	$17.44	$436,065	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Exercise(M)	200,000	$3.00	$600,000	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	46,145	$26.18	$1,208,030	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	22,380	$27.06	$605,670	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	1,475	$27.90	$41,153	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Exercise(M)	28,688	-	$0	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	25,792	$26.77	$690,426	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	2,624	$27.55	$72,304	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	201	$28.69	$5,766	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	71	$29.91	$2,124	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	25,000	$26.04	$650,950	Direct
Jun 3, 2026	NNE Nano Nuclear Energy Inc.	Exercise(M)	70,000	$3.00	$210,000	Direct
Feb 2, 2026	NNE Nano Nuclear Energy Inc.	Exercise(M)	330,000	$1.50	$495,000	Direct
Jan 28, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	10,609	$34.38	$364,779	Direct
Jan 28, 2026	NNE Nano Nuclear Energy Inc.	Exercise(M)	170,000	$1.50	$255,000	Direct
Jan 28, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	86,098	$33.64	$2,896,664	Direct
Jan 28, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	76,171	$34.37	$2,618,058	Direct
Jan 28, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	7,731	$35.26	$272,615	Direct
Jan 28, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	13,581	$33.66	$457,135	Direct
Jan 28, 2026	NNE Nano Nuclear Energy Inc.	Sale(S)	810	$35.27	$28,571	Direct
Dec 24, 2025	NNE Nano Nuclear Energy Inc.	Sale(S)	22,459	$30.03	$674,383	Direct
Dec 24, 2025	NNE Nano Nuclear Energy Inc.	Sale(S)	2,541	$30.97	$78,688	Direct
Nov 13, 2025	NNE Nano Nuclear Energy Inc.	Award(A) Restricted Stock Units	89,022	-	-	Direct

1-25 of 27 transactions

About Walker James John

Walker James John (SEC CIK 0002021757) files insider reports with the SEC as Chief Executive Officer of Nano Nuclear Energy Inc. (NNE).

Signal8 holds 11 ownership filings by Walker James John, all Form 4s, filed between Mar 17, 2025 and Oct 5, 2026. Those filings report 27 transactions, from Mar 13, 2025 to Oct 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Walker James John's filings is in NEW YORK, NY.

Recent filings by Walker James John

Oct 1, 2026: Grant or award of NNE derivative securities (Form 4, code A).
Sep 3, 2026: Open-market sale of NNE shares (Form 4, code S).
Sep 1, 2026: Open-market sale of NNE shares (Form 4, code S).
Jun 3, 2026: Option exercise of NNE shares (Form 4, code M).
Jun 3, 2026: Open-market sales of NNE shares (3 lines, Form 4, code S).

Other insiders filing for Nano Nuclear Energy Inc. (NNE)

Yu Jiang, President and Chairman
Garcha Jaisun, Chief Financial Officer
Law Tsun Yee, Director
Berl Seth Jason, Director
Yu Kenny Joe Yung, Director
Hare Diane Elizabeth, Director

How to read Form 4 transaction codes