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NNE · Nano Nuclear Energy Inc.
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NNE Nano Nuclear Energy (NNE) Insider Trading, Ownership & Congress Trades

Utilities · Electric services · CIK 0001923891
Quote by TradingView
Form 144 · 3
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
130
13F, latest reported quarter
Conversions, 180 days
13
Codes C/M, not in net · $2.1M priced

What the filings say about NNE

Insiders, 180 days
-$43.5M net sold
7 sellers · 2% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$9.6M
3 notices

Nano Nuclear Energy insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, Nano Nuclear Energy Inc. insiders sold a net $43.5M of stock across 99 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
Walker James John
Chief Executive Officer
SELL
2026-09-03 SEC
25,000
$444.2K
-33.1%
Context
  • 16 earlier Form 4 trades (code P or S) here by this insider (16 sales), the last on Jun 3, 2026.
  • The trade is 3.9% of the 635,000 shares held after it.
  • No other insider sold within 30 days.
  • 130 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer Walker James John sold about $444.2K of NNE under a 10b5-1 plan on Sep 3, 2026; 130 funds added in the latest 13F quarter.
Heidet Florent
Chief Technology Officer
SELL
2026-06-05 SEC
3,000
$74.8K
-54.1%
Context
  • First Form 4 purchase or sale (code P or S) here by this insider on our record.
  • The trade is 48.5% of the 6,185 shares held after it.
  • 6 other insiders sold within 30 days.
  • 130 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Technology Officer Heidet Florent sold about $74.8K of NNE on Jun 5, 2026; 6 other insiders sold within 30 days and 130 funds added in the latest 13F quarter.
Berl Seth Jason
Director
SELL
2026-06-05 SEC
3,750
$93.5K
-54.1%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on Mar 2, 2026.
  • The trade is 49.4% of the 7,586 shares held after it.
  • 6 other insiders sold within 30 days.
  • 130 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Berl Seth Jason sold about $93.5K of NNE on Jun 5, 2026; 6 other insiders sold within 30 days and 130 funds added in the latest 13F quarter.
Hare Diane Elizabeth
Director
SELL
2026-06-05 SECtraded 2026-06-03
1,000
$27.0K
-54.1%
Context
  • 4 earlier Form 4 trades (code P or S) here by this insider (4 sales), the last on Jan 5, 2026.
  • The trade is 500.0% of the 200 shares held after it.
  • 6 other insiders sold within 30 days.
  • 130 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Hare Diane Elizabeth sold about $27.0K of NNE on Jun 3, 2026; 6 other insiders sold within 30 days and 130 funds added in the latest 13F quarter.
Hare Diane Elizabeth
Director
SELL
2026-06-05 SECtraded 2026-06-03
2,228
$58.6K
-54.1%
Context
  • 4 earlier Form 4 trades (code P or S) here by this insider (4 sales), the last on Jan 5, 2026.
  • The trade is 185.7% of the 1,200 shares held after it.
  • 6 other insiders sold within 30 days.
  • 130 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Hare Diane Elizabeth sold about $58.6K of NNE on Jun 3, 2026; 6 other insiders sold within 30 days and 130 funds added in the latest 13F quarter.
99 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
Showing the latest few. to see 94 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$43.5M over 180 days
-$444.2K over 90 days · -$38.6M of it by a 10%+ holder
below 97% of Utilities
Congress
no House purchase disclosed in the last 12 months
Funds
130 funds bought in last quarter
below 62% of Utilities
Revenue
no revenue reported in any filing
Margin
no margin: no revenue reported
Buybacks
no share repurchases reported
Short interest
38.4% of the float short (float per yahoo 2026-10-27) · 7.8 days to cover · settled 2026-10-15
the highest in Utilities
What changed in the last 30 days
Nothing new filed in the last 30 days

Watch NNE

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
-72.1%12M
-72%-44%-16%+13%2025-102025-122026-022026-042026-062026-082026-10 2025-12-24 · Yu Jiang sold $10.1M2025-12-24 · I Financial Ventures Group LLC sold $10.1M2025-12-26 · Yu Jiang sold $9.3M2025-12-26 · I Financial Ventures Group LLC sold $9.3M2026-06-03 · Yu Jiang sold $8.2M2026-06-03 · I Financial Ventures Group LLC sold $8.2M2026-01-28 · Yu Jiang sold $6.9M2026-01-28 · I Financial Ventures Group LLC sold $6.9M2026-01-28 · Yu Jiang sold $6.8M2026-01-28 · I Financial Ventures Group LLC sold $6.8M2026-01-28 · Yu Jiang sold $6.2M2026-01-28 · I Financial Ventures Group LLC sold $6.2M2026-01-28 · Yu Jiang sold $6.1M2026-01-28 · I Financial Ventures Group LLC sold $6.1M2025-12-29 · Yu Jiang sold $4.8M2025-12-29 · I Financial Ventures Group LLC sold $4.8M2026-06-03 · Yu Jiang sold $4.6M2026-06-03 · I Financial Ventures Group LLC sold $4.6M2026-06-03 · Yu Jiang sold $3.3M2026-06-03 · I Financial Ventures Group LLC sold $3.3M2026-01-28 · Walker James John sold $2.9M2026-01-29 · Yu Jiang sold $2.8M2026-01-29 · I Financial Ventures Group LLC sold $2.8M2026-01-28 · Walker James John sold $2.6M2026-06-03 · Yu Jiang sold $1.8M2026-06-03 · I Financial Ventures Group LLC sold $1.8M2026-01-28 · Garcha Jaisun sold $1.3M2026-06-03 · Walker James John sold $1.2M2025-12-24 · Yu Jiang sold $1.2M2025-12-24 · I Financial Ventures Group LLC sold $1.2M2026-01-28 · Garcha Jaisun sold $1.1M2025-12-23 · Yu Kenny Joe Yung sold $973.2K2026-06-03 · Yu Jiang sold $795.3K2025-12-23 · Law Tsun Yee sold $732.0K2026-06-03 · Walker James John sold $690.5K2025-12-24 · Walker James John sold $674.4K2026-06-03 · Walker James John sold $651.0K2026-06-03 · Walker James John sold $605.6K2026-01-29 · Yu Jiang sold $602.4K2026-01-29 · I Financial Ventures Group LLC sold $602.4K2025-12-23 · Law Tsun Yee sold $602.1K2026-01-05 · Hare Diane Elizabeth sold $569.7K2026-09-03 · Walker James John filed to sell $444.2K2026-09-01 · I FINANCIAL VENTURES GROUP LLC filed to sell $8.7M2026-09-01 · Walker James John filed to sell $435.2K
Insider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns NNE: institutional holders (13F)

13F holdings, latest reported quarter
VAN ECK ASSOCIATES CORP
3,819,847 sh
$80.8M
BlackRock, Inc.
3,492,260 sh
$73.8M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
3,053,865 sh
$64.6M
VANGUARD CAPITAL MANAGEMENT LLC
1,717,005 sh
$36.3M
EXCHANGE TRADED CONCEPTS, LLC
1,214,262 sh
$25.7M

Congress trades in NNE

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

NNE planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
Walker James John
Filed 2026-09-03
$444.2K
I FINANCIAL VENTURES GROUP LLC
Filed 2026-09-01
$8.7M
Walker James John
Filed 2026-09-01
$435.2K

NNE mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Range Nuclear Renaissance Index ETF
$17.6M position · as of 2026-05-31
2.0%
Themes Uranium & Nuclear ETF
$548.2K position · as of 2026-06-30
2.0%
VanEck Uranium and Nuclear ETF
$80.9M position · as of 2026-06-30
1.9%
ALPS Nautilus SMR Nuclear & Technology ETF
$131.3K position · as of 2026-05-31
1.2%
Pacer Data & Infrastructure Real Estate ETF
$2.8M position · as of 2026-07-31
0.7%
Global X Uranium ETF
$39.8M position · as of 2026-07-31
0.7%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $43.5M sold by insiders over 180 days, 130 funds added last quarter, $9.6M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector by SEC SIC code
EDYORWOKLORGCOCWSTPCGQRHCWMVSTTRGPORASMC

NNE financials

Ratios from the company's XBRL filings, latest filings
Revenue, TTM
n/a
fewer than four consecutive quarters of revenue filed
Net margin, TTM
n/a
needs four consecutive quarters of both revenue and net income
Free cash flow, TTM
n/a
capex not filed for the four quarters
Debt to equity
n/a
no debt line filed
Cash flow to debt
n/a
no debt line filed
Return on equity
-8.0%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
-7.9%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
n/a
fewer than four consecutive quarters of operating income
Return on capital employed
n/a
fewer than four consecutive quarters of operating income
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Enterprise value
n/a
no debt line filed
FCF yield
n/a
capex not filed for the four quarters
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-092024-092023-09
Net income-$40.1M-$10.2M-$6.3M
EPS (diluted)-1.06-0.39-0.28
Operating cash flow-$19.6M-$8.5M-$3.9M
Cash$203.3M$28.5Mn/a
SEC XBRL, fiscal years, as known on 2026-10-28

NNE Stock Sonar score 4/7 axes

Find similar shapesCompare

NNE ranks highest on institutional and government (31st percentile) and risk and compliance (19th), and lowest on insider conviction (2nd), among Utilities peers.

Profitability
17
Inputs
  • Return on equity-8.0% · 17 pct, sector of 104
  • Return on assets-7.9% · 18 pct, sector of 120
  • Return on invested capitalfewer than four consecutive quarters of operating income
  • Return on capital employedfewer than four consecutive quarters of operating income
Insider conviction
2
Inputs
  • Net Form 4 buying (codes P and S), 180d-$43.1M · 3 pct, sector of 87
  • Insider buyers, 180d0 · 0 pct, sector of 88
Institutional and government
31
Inputs
  • Funds adding, latest quarter130 · 38 pct, sector of 121
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quarters$275K · 24 pct, sector of 60
Risk and compliance
19
Inputs
  • Short interest, % of float+38.4% · 0 pct, sector of 162
  • Recalls per $1B revenue, 3yrevenue under $50M or not filed, so a count cannot be scaled to size
  • EPA cases per $1B revenue, 5yrevenue under $50M or not filed, so a count cannot be scaled to size
  • New text in Risk Factors, latest 10-K+15.1% · 37 pct, sector of 111
3 not measured: Financial health, Growth, US patents
  • Financial health needs 1 of 2 inputs, 0 present: no debt line filed
  • Growth needs 1 of 2 inputs, 0 present: no backlog line filed, or no year-earlier backlog; no revenue for this year and the year before
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

4 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

NNE filings, in plain words

Are Nano Nuclear Energy insiders buying or selling NNE?

In the 180 days to 2026-10-28, Nano Nuclear Energy insiders were net sellers, a net $43.5M across purchases and sales reported on Form 4, by 7 sellers.

Are there planned insider sales of NNE?

Yes. 3 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-28, covering $9.6M of stock; the latest, by Walker James John, was filed 2026-09-03.

Read the full summary

In the 180 days to 2026-10-28, Nano Nuclear Energy insiders were net sellers of NNE, a net $43.5M across purchases and sales reported on Form 4 by 7 sellers. Most of that figure, $38.6M, came from a holder of 10% or more rather than an officer or director. 2% of the 45 insider sales were made under a Rule 10b5-1 plan; the rest were not flagged as planned. Insiders filed 3 Form 144 notices of intent to sell in the 90 days to 2026-10-28, covering $9.6M of stock. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

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