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sellModerate cluster of 610b5-1 plan

Kenny Joe Yung Yu sold $1.3M of NNE

director at Nano Nuclear Energy Inc.. 40,000 shares at an average of $32.43, traded Dec 23, 2025, filed Dec 30, 2025.

Warning score
40
Value
$1.3M
40,000 shares
Holdings after
15,000
-89% from before
From 52-week low
+71%
low $18.52, close $31.75
From 52-week high
-44%
high $56.63, as of Dec 23, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $1.3M at market
    +25
  • Share of holdings sold
    Sold 89% of holdings
    +20
  • Cluster
    6 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +29.0%, 3m -17.7%, 6m -15.1%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

NNEOct 12, 2026 · close 14.29
Since filing Dec 30, 2025: -42.6%SPY +14.1% · excess -56.7%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001493152-25-029663, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 23, 2025MOption exercise
Common Stock10b5-1
+30,177$3.00$91k45,177Dec 30, 2025
Dec 23, 2025SOpen-market sale
Common Stock10b5-1
-30,177$32.25$973k15,000Dec 30, 2025
Dec 23, 2025MOption exercise
Common Stock10b5-1
+9,823$3.00$29k24,823Dec 30, 2025
Dec 23, 2025SOpen-market sale
Common Stock10b5-1
-9,823$32.98$324k15,000Dec 30, 2025
Dec 23, 2025MOption exercise
Stock Optionsderivative10b5-1
-40,000$0.00$05,000Dec 30, 2025

Related signals

Other insiders at Nano Nuclear Energy Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
30Weak
NNEsell 210b5-1
Nano Nuclear Energy Inc.
James John Walker
Chief Executive Officer
$436k
25,000 shares
-4%
33Weak
NNEsell 210b5-1
Nano Nuclear Energy Inc.
Jiang Yu
President and Chairman
$8.3M
474,500 shares
-6%
30Weak
NNEsell 210b5-1
Nano Nuclear Energy Inc.
James John Walker
Chief Executive Officer
$444k
25,000 shares
-4%
35Weak
NNEsell 7
Nano Nuclear Energy Inc.
Seth Jason Berl
director
$93k
3,750 shares
-33%
32Weak
NNEsell 710b5-1
Nano Nuclear Energy Inc.
Jaisun Garcha
Chief Financial Officer
$986k
37,215 shares
-10%
24Weak
NNEsell 710b5-1
Nano Nuclear Energy Inc.
Diane Elizabeth Hare
director
$91k
3,428 shares
-100%
33Weak
NNEsell 7
Nano Nuclear Energy Inc.
Florent Heidet
Chief Technology Officer
$75k
3,000 shares
-33%
17Weak
NNEsell 710b5-1
Nano Nuclear Energy Inc.
I Financial Ventures Group LLC
owner
$19M
700,000 shares
-8%
25Weak
NNEsell 710b5-1
Nano Nuclear Energy Inc.
Jiang Yu
President and Chairman
$20M
745,900 shares
-9%
35Weak
NNEsell 710b5-1
Nano Nuclear Energy Inc.
James John Walker
Chief Executive Officer
$3.3M
123,688 shares
-19%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Kenny Joe Yung Yu sold $1.3M of NNE | InsiderTell