GARCHA JAISUN (Chief Financial Officer) sold 9.7% of their position (37.22K shares) of NANO NUCLEAR ENERGY INC. on the open market

Open‑market sale worth $985.6K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 5 sales

GARCHA JAISUN

Filed: 6/5/2026ACC: 0001493152-26-027552

InsiderGARCHA JAISUNCIK 1999680

→

IssuerNANO NUCLEAR ENERGY INC.CIK 1923891

Officer· Chief Financial Officer

Since Feb 2026

-37.22K

Net shares

Net seller

$985.6K

Total sold

Open market trades

0B · 5S

Total transactions

37.22K acquired · 74.43K disposed

Non-Derivative Transactions7

Common Stock

Direct

M · Option Exercise

+20K

Price / share

$3.00

Trade value

$60K

% of position

5.8%

6/3/2026

345K→365K

Common Stock

Direct

S · Sale

−20K

Price / share

$26.08

Trade value

$521.66K

% of position

5.5%

6/3/2026

365K→345K

Common Stock

Direct

M · Option Exercise

+17.21K

Price / share

—

Trade value

—

% of position

5.0%

6/3/2026

345K→362.21K

Common Stock

Direct

S · Sale

−15.22K

Price / share

$26.84

Trade value

$408.65K

% of position

4.2%

6/3/2026

362.21K→346.99K

Common Stock

Direct

S · Sale

−1.76K

Price / share

$27.59

Trade value

$48.59K

% of position

0.5%

6/3/2026

346.99K→345.23K

Common Stock

Direct

S · Sale

−174.00

Price / share

$28.81

Trade value

$5.01K

% of position

0.1%

6/3/2026

345.23K→345.06K

Common Stock

Direct

S · Sale

−57.00

Price / share

$29.91

Trade value

$1.70K

% of position

0.0%

6/3/2026

345.06K→345K

Total

Net shares

+0.00

Net value

-$925.62K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	6/3/2026	M · Option Exercise	+20K	$3.00	$60K	5.8%	345K	365K
Common Stock Direct	6/3/2026	S · Sale	−20K	$26.08	$521.66K	5.5%	365K	345K
Common Stock Direct	6/3/2026	M · Option Exercise	+17.21K	—	—	5.0%	345K	362.21K
Common Stock Direct	6/3/2026	S · Sale	−15.22K	$26.84	$408.65K	4.2%	362.21K	346.99K
Common Stock Direct	6/3/2026	S · Sale	−1.76K	$27.59	$48.59K	0.5%	346.99K	345.23K
Common Stock Direct	6/3/2026	S · Sale	−174.00	$28.81	$5.01K	0.1%	345.23K	345.06K
Common Stock Direct	6/3/2026	S · Sale	−57.00	$29.91	$1.70K	0.0%	345.06K	345K
Total			+0.00		-$925.62K

Derivative Transactions2

Stock Options

Direct

M · Option Exercise

Converts to

Common Stock

20K shares

−20K

Strike price

3.0

Held after

150K

Exercisable

—

6/3/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

17.21K shares

−17.21K

Strike price

Held after

87.84K

Exercisable

—

6/3/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Options Direct	Common Stock20K shares	6/3/2026	M · Option Exercise	−20K	3.0	—	150K
Restricted Stock Units Direct	Common Stock17.21K shares	6/3/2026	M · Option Exercise	−17.21K	0	—	87.84K