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

Willdan Group, Inc.

WLDN · Nasdaq · CIK 0001370450 · Industrials · Engineering & Construction

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
9 sales · 13 option, withholding, award, gift or other lines

Last qualifying purchase2023-08-03 · Forager Fund, L.P.; Kissel Edward Urban; MacArthur Robert Symmes · $7.8M

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
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
Brisbin Thomas DonaldDirector
○○▼○▼○▼○
BIEBER MICHAEL APRESIDENT AND CEO
○▼○▼
Shahidehpour MohammadDirector
○
REDER WANDA KAYDirector
○
McGinn Dennis VDirector
○
Downes CynthiaDirector
○
● 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: 2023-08-03 · Forager Fund, L.P.; Kissel Edward Urban; MacArthur Robert Symmes.

Recent Form 4 activity

0Purchases
10Sales
44Other Form 4 lines
35SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING9 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
1,769,010
Previous report
2,010,919
Avg daily volume
178,106
Days to cover
9.9

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
2023-08-03Forager Fund, L.P.; Kissel Edward Urban; MacArthur Robert SymmesPurchase (P)Common Stock, par value $0.01 per share385,537USD 20.11USD 7,753,149SEC filing ↗
2023-01-26Forager Fund, L.P.; Kissel Edward Urban; MacArthur Robert SymmesPurchase (P)Common Stock, par value $0.01 per share11,392USD 18.23USD 207,676SEC filing ↗
2023-01-25Forager Fund, L.P.; Kissel Edward Urban; MacArthur Robert SymmesPurchase (P)Common Stock, par value $0.01 per share26,777USD 18.11USD 484,866SEC filing ↗
2023-01-24Forager Fund, L.P.; Kissel Edward Urban; MacArthur Robert SymmesPurchase (P)Common Stock, par value $0.01 per share25,126USD 17.73USD 445,567SEC filing ↗
2022-12-13Forager Fund, L.P.; Kissel Edward Urban; MacArthur Robert SymmesPurchase (P)Common Stock, par value $0.01 per share83,100USD 16.02USD 1,331,262SEC filing ↗
2020-06-11Holdsworth Raymond W JrPurchase (P)Common Stock2,000USD 23.79USD 47,580SEC filing ↗
2020-03-13COY DEBRAPurchase (P)Common Stock1,000USD 24.23USD 24,230SEC filing ↗

Form 4 evidence

54 transaction lines in the latest 365-day window; 622 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-16Brisbin Thomas DonaldOption exercise / conversion (M)Common Stock22,635USD 16.27USD 368,271SEC filing ↗
2026-09-15Brisbin Thomas DonaldSale (S)Common Stock4,905USD 79.36USD 389,254SEC filing ↗
2026-09-15Brisbin Thomas DonaldOption exercise / conversion (M)Common Stock4,905USD 16.27USD 79,804SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-16Brisbin Thomas DonaldOption exercise / conversion (M)Common Stock22,635USD 16.27USD 368,271SEC filing ↗
2026-09-15Brisbin Thomas DonaldSale (S)Common Stock4,905USD 79.36USD 389,254SEC filing ↗
2026-09-15Brisbin Thomas DonaldOption exercise / conversion (M)Common Stock4,905USD 16.27USD 79,804SEC filing ↗
2026-09-08Brisbin Thomas DonaldSale (S)Common Stock3,439USD 88.19USD 303,285SEC filing ↗
2026-09-08Brisbin Thomas DonaldOption exercise / conversion (M)Common Stock3,439USD 16.27USD 55,953SEC filing ↗
2026-09-03Brisbin Thomas DonaldSale (S)Common Stock58,757USD 88.14USD 5,178,842SEC filing ↗
2026-09-03Brisbin Thomas DonaldOption exercise / conversion (M)Common Stock58,757USD 16.27USD 955,976SEC filing ↗
2026-06-17Shahidehpour MohammadAward / grant (A)Common Stock1,241USD 0.00USD 0SEC filing ↗
2026-06-17REDER WANDA KAYAward / grant (A)Common Stock1,241USD 0.00USD 0SEC filing ↗
2026-06-17McGinn Dennis VAward / grant (A)Common Stock1,241USD 0.00USD 0SEC filing ↗
2026-06-17Downes CynthiaAward / grant (A)Common Stock1,241USD 0.00USD 0SEC filing ↗
2026-06-17Cohen Steven AAward / grant (A)Common Stock1,241USD 0.00USD 0SEC filing ↗
2026-06-17Brisbin Thomas DonaldAward / grant (A)Common Stock1,241USD 0.00USD 0SEC filing ↗
2026-05-14BIEBER MICHAEL ASale (S)Common Stock56,676USD 91.58USD 5,190,212SEC filing ↗
2026-05-14BIEBER MICHAEL AOption exercise / conversion (M)Common Stock56,676USD 19.78USD 1,120,789SEC filing ↗
2026-05-13BIEBER MICHAEL ASale (S)Common Stock9,991USD 92.65USD 925,666SEC filing ↗
2026-05-13BIEBER MICHAEL AOption exercise / conversion (M)Common Stock9,991USD 16.27USD 162,554SEC filing ↗
2026-03-25EARLY CREIGHTON KTax withholding (F)Common Stock2,142USD 82.80USD 177,358SEC filing ↗
2026-03-25EARLY CREIGHTON KAward / grant (A)Common Stock3,780USD 0.00USD 0SEC filing ↗
2026-03-25CHEN MICAHTax withholding (F)Common Stock1,660USD 82.80USD 137,448SEC filing ↗
2026-03-25CHEN MICAHAward / grant (A)Common Stock3,780USD 0.00USD 0SEC filing ↗
2026-03-25BIEBER MICHAEL ATax withholding (F)Common Stock6,444USD 82.80USD 533,563SEC filing ↗
2026-03-25BIEBER MICHAEL AAward / grant (A)Common Stock15,750USD 0.00USD 0SEC filing ↗
2026-03-20EARLY CREIGHTON KTax withholding (F)Common Stock794USD 75.52USD 59,963SEC filing ↗
2026-03-20CHEN MICAHTax withholding (F)Common Stock615USD 75.52USD 46,445SEC filing ↗
2026-03-20BIEBER MICHAEL ATax withholding (F)Common Stock2,387USD 75.52USD 180,266SEC filing ↗
2026-03-17EARLY CREIGHTON KTax withholding (F)Common Stock873USD 78.29USD 68,347SEC filing ↗
2026-03-17CHEN MICAHTax withholding (F)Common Stock676USD 78.29USD 52,924SEC filing ↗
2026-03-17BIEBER MICHAEL ATax withholding (F)Common Stock2,625USD 78.29USD 205,511SEC filing ↗
2026-03-16EARLY CREIGHTON KTax withholding (F)Common Stock2,356USD 78.61USD 185,205SEC 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 · —
TickerWLDN
CIK0001370450
SectorIndustrials
IndustryEngineering & Construction Yahoo Finance
SEC SIC8711 Services-Engineering Services
ExchangeNasdaq

Data coverage

Local Form 4 history622 transaction lines from 2020-03-02 to 2026-09-16
9 P purchase lines · 333 S sale lines · 280 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.