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

WESCO INTERNATIONAL INC

WCC · NYSE · CIK 0000929008 · Industrials · Industrial Distribution

INSIDER SIGNAL

No active buy signal

1 qualifying P purchase group
in the current 180-day scoring window

95 Form 4 transaction lines observed in the same window
35 sales · 59 option, withholding, award, gift or other lines

Last qualifying purchase2026-08-04 · Castillo Daniel J · $351.3K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying1 qualifying line group(s)
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
Porwal HemantEVP Supply Chain & Operations
○○○▼▼○○
Castillo Daniel JEVP & GM, EES
○●○○
Khurana AkashEVP, Chief Info & Digital Off.
▼○▼○
Thompson Laura KDirector
○▼○
Naylor Dirk WaughEVP & GM, Comm & Sec Solutions
○○○
Lazzaris DianeEVP and General Counsel
▼○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 15 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Castillo Daniel J · $351.3K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-08-04–2026-08-04

Roles in the peak window: EVP & GM, EES. Concentration uses priced qualifying P lines only and does not change the saved score.

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: 2026-08-04 · Castillo Daniel J.

Recent Form 4 activity

1Purchases
55Sales
154Other Form 4 lines
114SEC filings · 365 days
BUYING1 qualifying P line(s) · 180 days
SELLING35 sale line(s) · context only
OTHER59 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
1,404,569
Previous report
1,443,219
Avg daily volume
452,932
Days to cover
3.1

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
2026-08-04Castillo Daniel JPurchase (P)Common Stock960USD 365.89USD 351,254SEC filing ↗
2022-09-29GEI Capital VII, LLC; Green Equity Investors Side VII, L.P.; Green Equity Investors VII, L.P.; LGP MANAGEMENT INC; Leonard Green & Partners, L.P.Purchase (P)Common Stock9,941USD 114.78USD 1,141,028SEC filing ↗
2022-09-27GEI Capital VII, LLC; Green Equity Investors Side VII, L.P.; Green Equity Investors VII, L.P.; LGP MANAGEMENT INC; Leonard Green & Partners, L.P.Purchase (P)Common Stock97,157USD 113.90USD 11,066,652SEC filing ↗
2022-08-08GEI Capital VII, LLC; Green Equity Investors Side VII, L.P.; Green Equity Investors VII, L.P.; LGP MANAGEMENT INC; Leonard Green & Partners, L.P.Purchase (P)Common Stock100,000USD 133.96USD 13,395,984SEC filing ↗
2022-08-05GEI Capital VII, LLC; Green Equity Investors Side VII, L.P.; Green Equity Investors VII, L.P.; LGP MANAGEMENT INC; Leonard Green & Partners, L.P.Purchase (P)Common Stock129,761USD 132.16USD 17,149,022SEC filing ↗
2022-08-04GEI Capital VII, LLC; Green Equity Investors Side VII, L.P.; Green Equity Investors VII, L.P.; LGP MANAGEMENT INC; Leonard Green & Partners, L.P.Purchase (P)Common Stock370,239USD 129.92USD 48,102,818SEC filing ↗
2020-09-17Schulz David S.Purchase (P)Series A Preferred Stock1,771USD 28.23USD 49,995SEC filing ↗
2020-09-17Schulz David S.Purchase (P)Common Stock1,136USD 44.00USD 50,000SEC filing ↗
2020-09-08Porwal HemantPurchase (P)Common Stock2,000USD 45.23USD 90,460SEC filing ↗
2020-09-04Porwal HemantPurchase (P)Series A Preferred Stock2,000USD 27.55USD 55,100SEC filing ↗
2020-07-14GEI Capital VII, LLC; Green Equity Investors Side VII, L.P.; Green Equity Investors VII, L.P.; LGP MANAGEMENT INC; Leonard Green & Partners, L.P.Purchase (P)Common Stock100,000USD 37.02USD 3,702,155SEC filing ↗
2020-07-13GEI Capital VII, LLC; Green Equity Investors Side VII, L.P.; Green Equity Investors VII, L.P.; LGP MANAGEMENT INC; Leonard Green & Partners, L.P.Purchase (P)Common Stock200,000USD 36.36USD 7,271,191SEC filing ↗
2020-07-10GEI Capital VII, LLC; Green Equity Investors Side VII, L.P.; Green Equity Investors VII, L.P.; LGP MANAGEMENT INC; Leonard Green & Partners, L.P.Purchase (P)Common Stock662,805USD 35.42USD 23,473,241SEC filing ↗

Form 4 evidence

210 transaction lines in the latest 365-day window; 1,185 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30WAJSGRAS DAVID CAward / grant (A)Common Stock88USD 354.66USD 31,250SEC filing ↗
2026-09-30Thompson Laura KAward / grant (A)Common Stock2USD 0.00USD 0SEC filing ↗
2026-09-30Sundaram EaswaranAward / grant (A)Common Stock107USD 291.26USD 31,250SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30WAJSGRAS DAVID CAward / grant (A)Common Stock88USD 354.66USD 31,250SEC filing ↗
2026-09-30Thompson Laura KAward / grant (A)Common Stock2USD 0.00USD 0SEC filing ↗
2026-09-30Sundaram EaswaranAward / grant (A)Common Stock107USD 291.26USD 31,250SEC filing ↗
2026-09-30Singleton James LouisAward / grant (A)Common Stock27USD 0.00USD 0SEC filing ↗
2026-09-30Porwal HemantAward / grant (A)Common Stock3USD 0.00USD 0SEC filing ↗
2026-09-30Naylor Dirk WaughAward / grant (A)Common Stock10USD 0.00USD 0SEC filing ↗
2026-09-30NAGARAJAN SUNDARAMAward / grant (A)Common Stock32USD 245.43USD 7,812SEC filing ↗
2026-09-30Marino Anthony SAward / grant (A)Common Stock1USD 0.00USD 0SEC filing ↗
2026-09-30Lazzaris DianeAward / grant (A)Common Stock4USD 0.00USD 0SEC filing ↗
2026-09-30Kulasa Matthew SAward / grant (A)Common Stock1USD 0.00USD 0SEC filing ↗
2026-09-30Khurana AkashAward / grant (A)Common Stock27USD 0.00USD 0SEC filing ↗
2026-09-30ESPE MATTHEW JAward / grant (A)Common Stock17USD 0.00USD 0SEC filing ↗
2026-09-30ENGEL JOHNAward / grant (A)Common Stock30USD 0.00USD 0SEC filing ↗
2026-09-30Dev IndraneelAward / grant (A)Common Stock23USD 0.00USD 0SEC filing ↗
2026-09-30Cooney Anne MAward / grant (A)Common Stock32USD 300.50USD 9,688SEC filing ↗
2026-09-30Castillo Daniel JAward / grant (A)Common Stock14USD 0.00USD 0SEC filing ↗
2026-09-30Carter Michael LononAward / grant (A)Common Stock1USD 0.00USD 0SEC filing ↗
2026-09-30Cameron JamesAward / grant (A)Common Stock29USD 0.00USD 0SEC filing ↗
2026-09-30BRYAN GLYNISAward / grant (A)Common Stock6USD 0.00USD 0SEC filing ↗
2026-09-11Castillo Daniel JTax withholding (F)Common Stock1,618USD 356.32USD 576,529SEC filing ↗
2026-08-17Khurana AkashSale (S)Common Stock3,400USD 366.78USD 1,247,046SEC filing ↗
2026-08-12Thompson Laura KSale (S)Common Stock270USD 368.45USD 99,482SEC filing ↗
2026-08-04Castillo Daniel JPurchase (P)Common Stock960USD 365.89USD 351,254SEC filing ↗
2026-07-23Marino Anthony SAward / grant (A)Common Stock1,021USD 0.00USD 0SEC filing ↗
2026-06-30Wolf Christine AnnAward / grant (A)Common Stock4USD 0.00USD 0SEC filing ↗
2026-06-30WAJSGRAS DAVID CAward / grant (A)Common Stock92USD 341.21USD 31,251SEC filing ↗
2026-06-30Thompson Laura KAward / grant (A)Common Stock2USD 0.00USD 0SEC filing ↗
2026-06-30Sundaram EaswaranAward / grant (A)Common Stock112USD 280.20USD 31,251SEC filing ↗
2026-06-30Singleton James LouisAward / grant (A)Common Stock28USD 0.00USD 0SEC filing ↗
2026-06-30Porwal HemantAward / grant (A)Common Stock3USD 0.00USD 0SEC 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 · —
TickerWCC
CIK0000929008
SectorIndustrials
IndustryIndustrial Distribution Yahoo Finance
SEC SIC5063 Wholesale-Electrical Apparatus & Equipment, Wiring Supplies
ExchangeNYSE

Data coverage

Local Form 4 history1,185 transaction lines from 2020-02-13 to 2026-09-30
51 P purchase lines · 154 S sale lines · 980 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.