Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Nano Nuclear Energy Inc.

NNE · Nasdaq · CIK 0001923891 · Utilities · Specialty Industrial Machinery

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

61 Form 4 transaction lines observed in the same window
48 sales · 13 option, withholding, award, gift or other lines

Last qualifying purchaseNo qualifying purchase is present in the local Form 4 history.

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Walker James JohnChief Executive Officer
○○▼▼▼
Yu JiangPresident and Chairman
○▼▼▼
Heidet FlorentChief Technology Officer
○▼
Berl Seth JasonDirector
○▼
Hare Diane ElizabethDirector
○▼
Garcha JaisunChief Financial Officer
○▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 3 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot.—

Recent Form 4 activity

0Purchases
102Sales
40Other Form 4 lines
28SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING48 sale line(s) · context only
OTHER13 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
16,750,169
Previous report
15,458,223
Avg daily volume
2,106,635
Days to cover
8.0

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

No qualifying code P equity purchase is present in the local Form 4 history.

Form 4 evidence

142 transaction lines in the latest 365-day window; 142 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-03Walker James JohnSale (S)Common Stock25,000USD 17.77USD 444,250SEC filing ↗
2026-09-02Yu JiangSale (S)Common Stock141,931USD 17.48USD 2,480,954SEC filing ↗
2026-09-01Yu JiangSale (S)Common Stock332,569USD 17.45USD 5,803,329SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-03Walker James JohnSale (S)Common Stock25,000USD 17.77USD 444,250SEC filing ↗
2026-09-02Yu JiangSale (S)Common Stock141,931USD 17.48USD 2,480,954SEC filing ↗
2026-09-01Yu JiangSale (S)Common Stock332,569USD 17.45USD 5,803,329SEC filing ↗
2026-09-01Walker James JohnSale (S)Common Stock25,000USD 17.44USD 436,000SEC filing ↗
2026-06-05Heidet FlorentSale (S)Common Stock3,000USD 24.95USD 74,850SEC filing ↗
2026-06-05Berl Seth JasonSale (S)Common Stock3,750USD 24.92USD 93,450SEC filing ↗
2026-06-03Walker James JohnOption exercise / conversion (M)Common Stock200,000USD 3.00USD 600,000SEC filing ↗
2026-06-03Yu Kenny Joe YungOption exercise / conversion (M)Common Stock3,428USD 0.00USD 0SEC filing ↗
2026-06-03Yu JiangSale (S)Common Stock745,900USD 26.68USD 19,897,154SEC filing ↗
2026-06-03Yu JiangOption exercise / conversion (M)Common Stock245,900USD 2.44USD 600,000SEC filing ↗
2026-06-03Walker James JohnSale (S)Common Stock123,688USD 26.49USD 3,276,491SEC filing ↗
2026-06-03Walker James JohnOption exercise / conversion (M)Common Stock98,688USD 2.13USD 210,000SEC filing ↗
2026-06-03Law Tsun YeeOption exercise / conversion (M)Common Stock3,428USD 0.00USD 0SEC filing ↗
2026-06-03I Financial Ventures Group LLCSale (S)Common Stock700,000USD 26.68USD 18,674,274SEC filing ↗
2026-06-03I Financial Ventures Group LLCOption exercise / conversion (M)Common Stock200,000USD 3.00USD 600,000SEC filing ↗
2026-06-03Heidet FlorentOption exercise / conversion (M)Common Stock9,185USD 0.00USD 0SEC filing ↗
2026-06-03Hare Diane ElizabethSale (S)Common Stock3,428USD 26.64USD 91,330SEC filing ↗
2026-06-03Hare Diane ElizabethOption exercise / conversion (M)Common Stock3,428USD 0.00USD 0SEC filing ↗
2026-06-03Garcha JaisunSale (S)Common Stock37,215USD 26.48USD 985,489SEC filing ↗
2026-06-03Garcha JaisunOption exercise / conversion (M)Common Stock37,215USD 1.61USD 60,000SEC filing ↗
2026-06-03Berl Seth JasonOption exercise / conversion (M)Common Stock7,500USD 0.00USD 0SEC filing ↗
2026-03-02Berl Seth JasonSale (S)Common Stock3,664USD 27.69USD 101,456SEC filing ↗
2026-02-02Walker James JohnOption exercise / conversion (M)Common Stock330,000USD 1.50USD 495,000SEC filing ↗
2026-02-02Garcha JaisunOption exercise / conversion (M)Common Stock95,000USD 1.82USD 172,500SEC filing ↗
2026-01-29Yu JiangSale (S)Common Stock121,339USD 31.78USD 3,856,518SEC filing ↗
2026-01-29Yu JiangOption exercise / conversion (M)Common Stock121,339USD 1.50USD 182,008SEC filing ↗
2026-01-29I Financial Ventures Group LLCSale (S)Common Stock121,339USD 31.78USD 3,856,518SEC filing ↗
2026-01-29I Financial Ventures Group LLCOption exercise / conversion (M)Common Stock121,339USD 1.50USD 182,008SEC filing ↗
2026-01-28Yu JiangSale (S)Common Stock766,661USD 34.14USD 26,177,229SEC filing ↗
2026-01-28Yu JiangOption exercise / conversion (M)Common Stock378,661USD 1.50USD 567,992SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerNNE
CIK0001923891
SectorUtilities
IndustrySpecialty Industrial Machinery Yahoo Finance
SEC SIC4911 Electric Services
ExchangeNasdaq

Data coverage

Local Form 4 history142 transaction lines from 2025-12-23 to 2026-09-03
0 P purchase lines · 102 S sale lines · 40 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.