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

FONAR CORP

FONR · — · CIK 0000355019 · Healthcare

INSIDER SIGNAL

55.0 / 100

1 buyers · 6 purchase transaction lines · $10.6M gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeStrong
RoleModerate
RecencyLow
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+7.0 / 35
Purchase size+23.0 / 25
Role+14.0 / 20
Recency+1.0 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Role scores low · most senior buyer: TenPercentOwner (CEO, chair and 10% owners score lowest)
  • ⚠ Purchase activity is becoming less recent

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

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

AprMayJunJulAugSepOct
shane hilaryTenPercentOwner
●●●●
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: shane hilary · $10.6M
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-27–2026-06-02

Roles in the peak window: TenPercentOwner. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

55.0 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 55.2
  2. 55.1
  3. 55.1
  4. 55.1
  5. 55.0

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

6Purchases
0Sales
0Other Form 4 lines
3SEC filings · 365 days
BUYING6 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER0 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 capture is under review for FONR. Last attempt: 2026-10-11T13:56:40.217380+00:00. —

Short interest

The FINRA report lists no short interest for this ticker.

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

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-02shane hilaryPurchase (P)Common Stock215,336USD 19.10USD 4,113,298SEC filing ↗
2026-05-29shane hilaryPurchase (P)Common Stock41,913USD 19.05USD 798,443SEC filing ↗
2026-05-28shane hilaryPurchase (P)Common Stock225,426USD 19.05USD 4,294,365SEC filing ↗
2026-05-27shane hilaryPurchase (P)Common Stock71,414USD 18.99USD 1,356,152SEC filing ↗
2022-09-30Damadian Timothy RaymondPurchase (P)FONAR CORPORATION COMMON STOCK2,200USD 14.15USD 31,130SEC filing ↗
2022-09-30Bonanni Luciano BPurchase (P)FONAR CORPORATION COMMON STOCK3,400USD 14.16USD 48,144SEC filing ↗
2022-09-29Damadian Timothy RaymondPurchase (P)FONAR CORPORATION COMMON STOCK2,500USD 13.63USD 34,075SEC filing ↗
2022-09-29Bonanni Luciano BPurchase (P)FONAR CORPORATION COMMON STOCK1,300USD 13.82USD 17,966SEC filing ↗

Form 4 evidence

6 transaction lines in the latest 365-day window; 10 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-02shane hilaryPurchase (P)Common Stock215,336USD 19.10USD 4,113,298SEC filing ↗
2026-05-29shane hilaryPurchase (P)Common Stock41,913USD 19.05USD 798,443SEC filing ↗
2026-05-28shane hilaryPurchase (P)Common Stock225,426USD 19.05USD 4,294,365SEC filing ↗
Show recent Form 4 evidence (4 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-02shane hilaryPurchase (P)Common Stock215,336USD 19.10USD 4,113,298SEC filing ↗
2026-05-29shane hilaryPurchase (P)Common Stock41,913USD 19.05USD 798,443SEC filing ↗
2026-05-28shane hilaryPurchase (P)Common Stock225,426USD 19.05USD 4,294,365SEC filing ↗
2026-05-27shane hilaryPurchase (P)Common Stock71,414USD 18.99USD 1,356,152SEC 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 · —
TickerFONR
CIK0000355019
SectorHealthcare
Industry— Yahoo Finance
SEC SIC3845 Electromedical & Electrotherapeutic Apparatus
Exchange—

Data coverage

Local Form 4 history10 transaction lines from 2022-09-29 to 2026-06-02
10 P purchase lines · 0 S sale lines · 0 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.