WALKER JAMES JOHN

PrivateCIK: 2021757
Location

NEW YORK, NY

WALKER JAMES JOHN (Chief Executive Officer) sold 43.8% of their position (195K shares) of NANO NUCLEAR ENERGY INC. on the open market

Open‑market sale worth $6.64M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 6 sales
InsiderWALKER JAMES JOHNCIK 2021757
IssuerNANO NUCLEAR ENERGY INC.CIK 1923891
DirectorOfficer· Chief Executive Officer
Since Feb 2026
-195K
Net shares
Net seller
$6.64M
Total sold
6
Open market trades
0B · 6S
8
Total transactions
170K acquired · 365K disposed
Non-Derivative Transactions7

Common Stock

Direct
M · Option Exercise

Shares

+170K

Price / share

$1.50

Trade value

$255K

% of position

61.8%
1/28/2026
275K445K

Common Stock

Direct
S · Sale

Shares

86.10K

Price / share

$33.64

Trade value

$2.90M

% of position

19.3%
1/28/2026
445K358.90K

Common Stock

Direct
S · Sale

Shares

76.17K

Price / share

$34.37

Trade value

$2.62M

% of position

21.2%
1/28/2026
358.90K282.73K

Common Stock

Direct
S · Sale

Shares

7.73K

Price / share

$35.26

Trade value

$272.62K

% of position

2.7%
1/28/2026
282.73K275K

Common Stock

Direct
S · Sale

Shares

13.58K

Price / share

$33.66

Trade value

$457.14K

% of position

4.9%
1/28/2026
275K261.42K

Common Stock

Direct
S · Sale

Shares

10.61K

Price / share

$34.38

Trade value

$364.78K

% of position

4.1%
1/28/2026
261.42K250.81K

Common Stock

Direct
S · Sale

Shares

810.00

Price / share

$35.27

Trade value

$28.57K

% of position

0.3%
1/28/2026
250.81K250K
Total

Net shares

25K

Net value

-$6.38M

Derivative Transactions1

Stock Options

Direct
M · Option Exercise
Converts to

Common Stock

170K shares

Shares

170K

Strike price

1.50

Held after

830K

Exercisable

1/28/2026
WALKER JAMES JOHN — Insider Transaction (Form 4) Filed Jan 30, 2026 | Finecho