Nano Nuclear Energy Inc. Insider Trading

NNE

Last 12 months

Insiders sold $100M and bought nothing on the open market.

All of the selling was scheduled in advance under 10b5-1 plans. Director Seth Jason Berl sold 101K on Mar 2, 49% of their stake, outside a plan. No executive or director has bought shares on the open market in the last two years.

Net open-market

−$100M

0 buys · 18 sales

Under a 10b5-1 plan

100%

of the value sold

Insiders who bought / sold

0 / 8

executives and directors

Last open-market buy

None

in the last two years

Get an email when NNE's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Sep 3	James John Walker Chief Executive Officer	Sold10b5-1 plan	25,000	$17.77	444K	3.8%	Form 4
Sep 1 – 2	Jiang Yu President and Chairman	Sold10b5-1 plan 2 parts	474,500	$17.46 average	$8.28M	5.8%	Form 4
Sep 1	James John Walker Chief Executive Officer	Sold10b5-1 plan	25,000	$17.44	436K	3.6%	Form 4
Jun 5	Florent Heidet Chief Technology Officer	SoldNo plan	3,000	$24.95	75K	33%	Form 4
Jun 5	Seth Jason Berl Director	SoldNo plan	3,750	$24.92	93K	33%	Form 4
Jun 3	Diane Elizabeth Hare Director	Sold10b5-1 plan 4 parts	3,428	$26.64 average	91K	100%	Form 4
Jun 3	Jiang Yu President and Chairman	Sold10b5-1 plan 15 parts	745,900	$26.68 average	$19.9M	4.3%	Form 4
Jun 3	Jaisun Garcha Chief Financial Officer	Sold10b5-1 plan 5 parts	37,215	$26.48 average	985K	9.7%	Form 4
Jun 3	I Financial Ventures Group LLC Large holder	Sold10b5-1 plan 10 parts	700,000	$26.68 average	$18.7M	7.8%	Form 4
Mar 2	Seth Jason Berl Director	SoldNo plan	3,664	$27.69	101K	49%	Form 4
Jan 28 – 29	Jiang Yu President and Chairman	Sold10b5-1 plan 10 parts	888,000	$33.82 average	$30M	9.2%	Form 4
Jan 28 – 29	I Financial Ventures Group LLC Large holder	Sold10b5-1 plan 10 parts	888,000	$33.82 average	$30M	9.2%	Form 4
Jan 28	James John Walker Chief Executive Officer	Sold10b5-1 plan 6 parts	195,000	$34.04 average	$6.64M	44%	Form 4
Jan 28	Jaisun Garcha Chief Financial Officer	Sold10b5-1 plan 3 parts	75,000	$34.04 average	$2.55M	23%	Form 4
Jan 5	Diane Elizabeth Hare Director	Sold10b5-1 plan 2 parts	20,000	$28.70 average	574K	100%	Form 4
Dec 24, 2025 – Dec 29, 2025	Jiang Yu President and Chairman	Sold10b5-1 plan 6 parts	888,000	$28.89 average	$25.7M	8.9%	Form 4
Dec 24, 2025 – Dec 29, 2025	I Financial Ventures Group LLC Large holder	Sold10b5-1 plan 6 parts	888,000	$28.89 average	$25.7M	8.9%	Form 4
Dec 24, 2025	James John Walker Chief Executive Officer	Sold10b5-1 plan 2 parts	25,000	$30.13 average	753K	8.3%	Form 4
Dec 23, 2025	Tsun Yee Law Director	Sold10b5-1 plan 4 parts	55,000	$32.44 average	$1.78M	42%	Form 4
Dec 23, 2025	Kenny Joe Yung Yu Director	Sold10b5-1 plan 2 parts	40,000	$32.43 average	$1.3M	73%	Form 4
Dec 23, 2025	Diane Elizabeth Hare Director	Sold10b5-1 plan 2 parts	20,000	$32.43 average	649K	100%	Form 4

Sep 310b5-1 plan
James John Walker
Chief Executive Officer · sold 25,000 at $17.77
444K
3.8% of stake
Sep 1 – 210b5-1 plan
Jiang Yu
President and Chairman · sold 474,500 at avg $17.46
$8.28M
5.8% of stake
Sep 110b5-1 plan
James John Walker
Chief Executive Officer · sold 25,000 at $17.44
436K
3.6% of stake
Jun 5No plan
Florent Heidet
Chief Technology Officer · sold 3,000 at $24.95
75K
33% of stake
Jun 5No plan
Seth Jason Berl
Director · sold 3,750 at $24.92
93K
33% of stake
Jun 310b5-1 plan
Diane Elizabeth Hare
Director · sold 3,428 at avg $26.64
91K
100% of stake
Jun 310b5-1 plan
Jiang Yu
President and Chairman · sold 745,900 at avg $26.68
$19.9M
4.3% of stake
Jun 310b5-1 plan
Jaisun Garcha
Chief Financial Officer · sold 37,215 at avg $26.48
985K
9.7% of stake
Jun 310b5-1 plan
I Financial Ventures Group LLC
Large holder · sold 700,000 at avg $26.68
$18.7M
7.8% of stake
Mar 2No plan
Seth Jason Berl
Director · sold 3,664 at $27.69
101K
49% of stake
Jan 28 – 2910b5-1 plan
Jiang Yu
President and Chairman · sold 888,000 at avg $33.82
$30M
9.2% of stake
Jan 28 – 2910b5-1 plan
I Financial Ventures Group LLC
Large holder · sold 888,000 at avg $33.82
$30M
9.2% of stake
Jan 2810b5-1 plan
James John Walker
Chief Executive Officer · sold 195,000 at avg $34.04
$6.64M
44% of stake
Jan 2810b5-1 plan
Jaisun Garcha
Chief Financial Officer · sold 75,000 at avg $34.04
$2.55M
23% of stake
Jan 510b5-1 plan
Diane Elizabeth Hare
Director · sold 20,000 at avg $28.70
574K
100% of stake
Dec 24, 2025 – Dec 29, 202510b5-1 plan
Jiang Yu
President and Chairman · sold 888,000 at avg $28.89
$25.7M
8.9% of stake
Dec 24, 2025 – Dec 29, 202510b5-1 plan
I Financial Ventures Group LLC
Large holder · sold 888,000 at avg $28.89
$25.7M
8.9% of stake
Dec 24, 202510b5-1 plan
James John Walker
Chief Executive Officer · sold 25,000 at avg $30.13
753K
8.3% of stake
Dec 23, 202510b5-1 plan
Tsun Yee Law
Director · sold 55,000 at avg $32.44
$1.78M
42% of stake
Dec 23, 202510b5-1 plan
Kenny Joe Yung Yu
Director · sold 40,000 at avg $32.43
$1.3M
73% of stake
Dec 23, 202510b5-1 plan
Diane Elizabeth Hare
Director · sold 20,000 at avg $32.43
649K
100% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch NNE, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

NNE is in 18 US ETFs. The largest of them, with NNE's weight in each:

Spot a number that looks wrong? Check it in NNE's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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