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

UNIFIRST CORP

UNF · NYSE · CIK 0000717954 · Consumer Cyclical · Specialty Business Services

INSIDER SIGNAL

No active buy signal

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

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

Last qualifying purchase2021-08-09 · CAMILLI KATHLEEN M · $100.3K

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

No Form 4 transaction event is present in the current 180-day window.

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: 2021-08-09 · CAMILLI KATHLEEN M.

Recent Form 4 activity

0Purchases
4Sales
33Other Form 4 lines
21SEC filings · 365 days
BUYING0 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 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
941,427
Previous report
871,484
Avg daily volume
395,292
Days to cover
2.4

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
2021-08-09CAMILLI KATHLEEN MPurchase (P)Common Stock465USD 215.63USD 100,268SEC filing ↗

Form 4 evidence

37 transaction lines in the latest 365-day window; 412 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-02-17Katz David MartinSale (S)Common Stock1,464USD 237.54USD 347,759SEC filing ↗
2026-02-09Ross William MastersSale (S)Common Stock1,128USD 201.38USD 227,157SEC filing ↗
2026-01-05DIFILLIPPO DAVID ATax withholding (F)Common Stock1,138USD 197.92USD 225,233SEC filing ↗
Show recent Form 4 evidence (29 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-02-17Katz David MartinSale (S)Common Stock1,464USD 237.54USD 347,759SEC filing ↗
2026-02-09Ross William MastersSale (S)Common Stock1,128USD 201.38USD 227,157SEC filing ↗
2026-01-05DIFILLIPPO DAVID ATax withholding (F)Common Stock1,138USD 197.92USD 225,233SEC filing ↗
2025-12-16Sintros Steven SAward / grant (A)Common Stock5,167USD 0.00USD 0SEC filing ↗
2025-12-16Ross William MastersAward / grant (A)Common Stock1,292USD 0.00USD 0SEC filing ↗
2025-12-16Rooney Kelly C.Award / grant (A)Common Stock3,445USD 0.00USD 0SEC filing ↗
2025-12-16Pupkin Sergio AAward / grant (A)Common Stock575USD 0.00USD 0SEC filing ↗
2025-12-16O'Connor ShaneAward / grant (A)Common Stock2,440USD 0.00USD 0SEC filing ↗
2025-12-16NOWICKI JOSEPH MAward / grant (A)Common Stock575USD 0.00USD 0SEC filing ↗
2025-12-16McKenney Cecilia KAward / grant (A)Common Stock575USD 0.00USD 0SEC filing ↗
2025-12-16Katz David MartinAward / grant (A)Common Stock1,866USD 0.00USD 0SEC filing ↗
2025-12-16Croatti MatthewAward / grant (A)Common Stock646USD 0.00USD 0SEC filing ↗
2025-11-19Sintros Steven STax withholding (F)Common Stock287USD 159.85USD 45,877SEC filing ↗
2025-11-03Katz David MartinSale (S)Common Stock9USD 155.26USD 1,397SEC filing ↗
2025-11-03Katz David MartinOption exercise / conversion (M)Common Stock2,530USD 0.00USD 0SEC filing ↗
2025-11-03Katz David MartinTax withholding (F)Common Stock2,521USD 155.40USD 391,765SEC filing ↗
2025-10-31Sintros Steven STax withholding (F)Common Stock1,696USD 154.35USD 261,778SEC filing ↗
2025-10-31Sintros Steven SAward / grant (A)Common Stock1,898USD 0.00USD 0SEC filing ↗
2025-10-31Ross William MastersTax withholding (F)Common Stock835USD 154.35USD 128,882SEC filing ↗
2025-10-31Ross William MastersAward / grant (A)Common Stock501USD 0.00USD 0SEC filing ↗
2025-10-31Rooney Kelly C.Tax withholding (F)Common Stock1,548USD 154.35USD 238,934SEC filing ↗
2025-10-31Rooney Kelly C.Award / grant (A)Common Stock2,529USD 0.00USD 0SEC filing ↗
2025-10-31O'Connor ShaneTax withholding (F)Common Stock1,296USD 154.35USD 200,038SEC filing ↗
2025-10-31O'Connor ShaneAward / grant (A)Common Stock897USD 0.00USD 0SEC filing ↗
2025-10-31Katz David MartinTax withholding (F)Common Stock1,083USD 154.35USD 167,161SEC filing ↗
2025-10-31Katz David MartinAward / grant (A)Common Stock687USD 0.00USD 0SEC filing ↗
2025-10-31DIFILLIPPO DAVID ATax withholding (F)Common Stock835USD 154.35USD 128,882SEC filing ↗
2025-10-31DIFILLIPPO DAVID AAward / grant (A)Common Stock501USD 0.00USD 0SEC filing ↗
2025-10-31Croatti MatthewTax withholding (F)Common Stock272USD 154.35USD 41,983SEC 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 · —
TickerUNF
CIK0000717954
SectorConsumer Cyclical
IndustrySpecialty Business Services Yahoo Finance
SEC SIC7200 Services-Personal Services
ExchangeNYSE

Data coverage

Local Form 4 history412 transaction lines from 2020-01-02 to 2026-02-17
1 P purchase lines · 108 S sale lines · 303 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.