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

R F INDUSTRIES LTD

RFIL · Nasdaq · CIK 0000740664 · Technology · Electrical Equipment & Parts

INSIDER SIGNAL

No active buy signal

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

22 Form 4 transaction lines observed in the same window
0 sales · 22 option, withholding, award, gift or other lines

Last qualifying purchase2025-03-27 · Holdsworth Mark Keith · $70.8K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
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
Yin PeterChief Financial Officer
○○○○
Dawson Robert DCEO
○○○○
Bibisi Ray MichaelPresident and COO
○○○○
Tidwell Kay LeeDirector
○
Holdsworth Mark KeithDirector
○
GARLAND GERALD TDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 1 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. Last qualifying purchase: 2025-03-27 · Holdsworth Mark Keith.

Recent Form 4 activity

0Purchases
0Sales
43Other Form 4 lines
19SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER22 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
785,142
Previous report
758,084
Avg daily volume
316,101
Days to cover
2.5

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
2025-03-27Holdsworth Mark KeithPurchase (P)Common Stock15,000USD 4.72USD 70,800SEC filing ↗
2024-10-15Holdsworth Mark KeithPurchase (P)Common Stock7,009USD 4.00USD 28,036SEC filing ↗
2024-10-04Holdsworth Mark KeithPurchase (P)Common Stock8,815USD 4.07USD 35,877SEC filing ↗
2024-10-03Holdsworth Mark KeithPurchase (P)Common Stock100USD 3.95USD 395SEC filing ↗
2024-10-02Holdsworth Mark KeithPurchase (P)Common Stock8,800USD 3.97USD 34,936SEC filing ↗
2024-10-01Holdsworth Mark KeithPurchase (P)Common Stock10,000USD 4.00USD 40,000SEC filing ↗
2024-09-30Holdsworth Mark KeithPurchase (P)Common Stock5,000USD 3.94USD 19,700SEC filing ↗
2024-09-27Holdsworth Mark KeithPurchase (P)Common Stock220USD 3.69USD 812SEC filing ↗
2023-10-06Dawson Robert DPurchase (P)Common Stock4,794USD 2.99USD 14,334SEC filing ↗
2023-10-05Dawson Robert DPurchase (P)Common Stock206USD 2.90USD 597SEC filing ↗
2023-10-04Dawson Robert DPurchase (P)Common Stock5,000USD 3.00USD 15,000SEC filing ↗
2023-10-03Holdsworth Mark KeithPurchase (P)Common Stock1,517USD 2.83USD 4,293SEC filing ↗
2023-10-02Holdsworth Mark KeithPurchase (P)Common Stock454USD 2.93USD 1,330SEC filing ↗
2023-09-29Holdsworth Mark KeithPurchase (P)Common Stock8,000USD 3.01USD 24,080SEC filing ↗
2023-09-27Holdsworth Mark KeithPurchase (P)Common Stock57,042USD 2.70USD 154,013SEC filing ↗

Form 4 evidence

43 transaction lines in the latest 365-day window; 279 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-13Yin PeterTax withholding (F)Common Stock112USD 7.95USD 890SEC filing ↗
2026-10-13Dawson Robert DTax withholding (F)Common Stock803USD 7.95USD 6,384SEC filing ↗
2026-10-13Bibisi Ray MichaelTax withholding (F)Common Stock112USD 7.95USD 890SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-13Yin PeterTax withholding (F)Common Stock112USD 7.95USD 890SEC filing ↗
2026-10-13Dawson Robert DTax withholding (F)Common Stock803USD 7.95USD 6,384SEC filing ↗
2026-10-13Bibisi Ray MichaelTax withholding (F)Common Stock112USD 7.95USD 890SEC filing ↗
2026-10-11Yin PeterTax withholding (F)Common Stock230USD 8.31USD 1,911SEC filing ↗
2026-10-11Dawson Robert DTax withholding (F)Common Stock1,724USD 8.31USD 14,326SEC filing ↗
2026-10-11Bibisi Ray MichaelTax withholding (F)Common Stock221USD 8.31USD 1,837SEC filing ↗
2026-09-10Tidwell Kay LeeAward / grant (A)Common Stock7,850USD 0.00USD 0SEC filing ↗
2026-09-10Holdsworth Mark KeithAward / grant (A)Common Stock7,850USD 0.00USD 0SEC filing ↗
2026-09-10GARLAND GERALD TAward / grant (A)Common Stock7,850USD 0.00USD 0SEC filing ↗
2026-09-10Cefali Sheryl LynnAward / grant (A)Common Stock7,850USD 0.00USD 0SEC filing ↗
2026-07-13Yin PeterTax withholding (F)Common Stock118USD 15.76USD 1,860SEC filing ↗
2026-07-13Dawson Robert DTax withholding (F)Common Stock834USD 15.76USD 13,144SEC filing ↗
2026-07-13Bibisi Ray MichaelTax withholding (F)Common Stock116USD 15.76USD 1,828SEC filing ↗
2026-07-11Yin PeterTax withholding (F)Common Stock408USD 17.43USD 7,111SEC filing ↗
2026-07-11Dawson Robert DTax withholding (F)Common Stock1,725USD 17.43USD 30,067SEC filing ↗
2026-07-11Bibisi Ray MichaelTax withholding (F)Common Stock202USD 17.43USD 3,521SEC filing ↗
2026-04-13Yin PeterTax withholding (F)Common Stock245USD 12.25USD 3,001SEC filing ↗
2026-04-13Dawson Robert DTax withholding (F)Common Stock662USD 12.25USD 8,110SEC filing ↗
2026-04-13Bibisi Ray MichaelTax withholding (F)Common Stock125USD 12.25USD 1,531SEC filing ↗
2026-04-11Yin PeterTax withholding (F)Common Stock342USD 11.83USD 4,046SEC filing ↗
2026-04-11Dawson Robert DTax withholding (F)Common Stock1,445USD 11.83USD 17,094SEC filing ↗
2026-04-11Bibisi Ray MichaelTax withholding (F)Common Stock175USD 11.83USD 2,070SEC filing ↗
2026-01-13Yin PeterTax withholding (F)Common Stock770USD 6.66USD 5,128SEC filing ↗
2026-01-13Dawson Robert DTax withholding (F)Common Stock3,513USD 6.66USD 23,397SEC filing ↗
2026-01-13Bibisi Ray MichaelTax withholding (F)Common Stock790USD 6.66USD 5,261SEC filing ↗
2026-01-11Yin PeterTax withholding (F)Common Stock187USD 5.96USD 1,115SEC filing ↗
2026-01-11Dawson Robert DTax withholding (F)Common Stock943USD 5.96USD 5,620SEC filing ↗
2026-01-11Bibisi Ray MichaelTax withholding (F)Common Stock190USD 5.96USD 1,132SEC filing ↗
2026-01-10Yin PeterTax withholding (F)Common Stock47USD 5.96USD 280SEC filing ↗
2026-01-10Dawson Robert DTax withholding (F)Common Stock158USD 5.96USD 942SEC 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 · —
TickerRFIL
CIK0000740664
SectorTechnology
IndustryElectrical Equipment & Parts Yahoo Finance
SEC SIC3678 Electronic Connectors
ExchangeNasdaq

Data coverage

Local Form 4 history279 transaction lines from 2020-01-09 to 2026-10-13
58 P purchase lines · 20 S sale lines · 201 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.