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Nano Nuclear Energy Inc.

NNE
Exchange
Nasdaq
Industry
Electric Services
SEC CIK
0001923891

In the last 90 days, Nano Nuclear Energy Inc. insiders filed 0 open-market purchases and 3 sales; 236 institutions reported holding it in 13F filings for Q2 2026, worth $487.1M in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Nano Nuclear Energy Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
3 filings
2 insiders, $9.16M in total
Insiders trading
2
Net value
−$9.16M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Nano Nuclear Energy Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Nano Nuclear Energy Inc.
NameTitleLast reported holdingLast filingFilings, past year
Walker James JohnChief Executive Officer635,000Sep 3, 20267
Yu JiangPresident and Chairman7,749,500IndirectSep 3, 20265
Garcha JaisunChief Financial Officer345,000Jun 5, 20264
I Financial Ventures Group LLC10% Owner8,224,000Jun 5, 20263
Hare Diane ElizabethDirector0Jun 5, 20264
Yu Kenny Joe YungDirector18,428Jun 5, 20263
Law Tsun YeeDirector78,428Jun 5, 20263
Heidet FlorentChief Technology Officer6,185Jun 5, 20262
Berl Seth JasonDirector7,586Jun 5, 20264

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 3, 2026 (view filing)5:49 PM ETSep 3Same dayWalker James JohnChief Executive OfficerSSale−25.0K$17.77−$444.2K−3.8%635.0K after10b5-1
Sep 3, 2026 (view filing)4:05 PM ETSep 1-22 daysYu JiangPresident and ChairmanSSale−474.5K$17.46−$8.28M−5.8%7.75M after2 lots10b5-1
Sep 3, 2026 (view filing)4:05 PM ETSep 12 daysWalker James JohnChief Executive OfficerSSale−25.0K$17.44−$436.1K−3.6%660.0K after10b5-1
Jun 5, 2026 (view filing)Jun 32 daysHare Diane ElizabethDirectorSSale−3.43K$26.64−$91.3K−100.0%0 after4 lots10b5-1
Jun 5, 2026 (view filing)Jun 32 daysYu JiangPresident and ChairmanSSale−700.0K$26.68−$18.7M−7.8%8.22M after10 lots10b5-1Duplicate filing
Jun 5, 2026 (view filing)Jun 32 daysYu JiangPresident and ChairmanSSale−45.9K$26.64−$1.22M−0.6%8.22M after5 lots10b5-1
Jun 5, 2026 (view filing)Jun 5Same dayHeidet FlorentChief Technology OfficerSSale−3.00K$24.95−$74.8K−32.7%6.18K after
Jun 5, 2026 (view filing)Jun 32 daysGarcha JaisunChief Financial OfficerSSale−37.2K$26.48−$985.5K−9.7%345.0K after5 lots10b5-1
Jun 5, 2026 (view filing)Jun 32 daysI Financial Ventures Group LLC10% OwnerSSale−700.0K$26.68−$18.7M−7.8%8.22M after10 lots10b5-1
Jun 5, 2026 (view filing)Jun 5Same dayBerl Seth JasonDirectorSSale−3.75K$24.92−$93.5K−33.1%7.59K after
Mar 4, 2026 (view filing)Mar 22 daysBerl Seth JasonDirectorSSale−3.66K$27.69−$101.5K−48.9%3.84K after
Jan 30, 2026 (view filing)Jan 28-292 daysYu JiangPresident and ChairmanSSale−888.0K$33.82−$30.0M−9.2%8.72M after10 lots10b5-1Duplicate filing
Jan 30, 2026 (view filing)Jan 28-292 daysI Financial Ventures Group LLC10% OwnerSSale−888.0K$33.82−$30.0M−9.2%8.72M after10 lots10b5-1
Jan 30, 2026 (view filing)Jan 282 daysWalker James JohnChief Executive OfficerSSale−195.0K$34.04−$6.64M−43.8%250.0K after6 lots10b5-1
Jan 30, 2026 (view filing)Jan 282 daysGarcha JaisunChief Financial OfficerSSale−75.0K$34.04−$2.55M−23.1%250.0K after3 lots10b5-1
Jan 6, 2026 (view filing)Jan 51 dayHare Diane ElizabethDirectorSSale−20.0K$28.70−$574.1K−100.0%0 after2 lots10b5-1
Dec 30, 2025 (view filing)Dec 237 daysLaw Tsun YeeDirectorSSale−55.0K$32.44−$1.78M−42.3%75.0K after4 lots10b5-1
Dec 30, 2025 (view filing)Dec 237 daysYu Kenny Joe YungDirectorSSale−40.0K$32.43−$1.30M−72.7%15.0K after2 lots10b5-1
Dec 30, 2025 (view filing)Dec 24-296 daysYu JiangPresident and ChairmanSSale−888.0K$28.89−$25.7M−8.9%9.11M after6 lots10b5-1Duplicate filing
Dec 30, 2025 (view filing)Dec 246 daysWalker James JohnChief Executive OfficerSSale−25.0K$30.13−$753.1K−8.3%275.0K after2 lots10b5-1
Dec 30, 2025 (view filing)Dec 237 daysHare Diane ElizabethDirectorSSale−20.0K$32.43−$648.7K−100.0%0 after2 lots10b5-1
Dec 30, 2025 (view filing)Dec 24-296 daysI Financial Ventures Group LLC10% OwnerSSale−888.0K$28.89−$25.7M−8.9%9.11M after6 lots10b5-1