Form4insider filings, from the source

Company · CIK 0000929008 · SIC 5063 — Wholesale-Electrical Apparatus & Equipment, Wiring Supplies · NYSE

WESCO INTERNATIONAL INC · WCC

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $351k · 1sales $1.3M · 2net −$995k
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesSep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 11, 2026 FForm 4 →Sep 15, 5:31 pm EDTDaniel J CastilloEVP & GM, EES1,618$356.32$576,53014,687—
Aug 17, 2026 SForm 4 →Aug 19, 5:05 pm EDTAkash KhuranaEVP, Chief Info & Digital Off.3,400$366.78$1,247,04627,404−11.0%
Aug 12, 2026 SForm 4 →Aug 13, 5:19 pm EDTLaura K ThompsonDirector270$368.45$99,48210,720−2.46%
Aug 4, 2026 PForm 4 →Aug 5, 5:53 pm EDTDaniel J CastilloEVP & GM, EES960$365.89$351,25416,305+6.26%
Jul 23, 2026 AForm 4 →Jul 27, 4:45 pm EDTAnthony S MarinoEVP & CHRO1,021——1,021—
Jun 30, 2026 AForm 4 →Jul 2, 4:39 pm EDTMatthew S KulasaSVP, Corp. Controller & CAO1——3,147—
Jun 30, 2026 AForm 4 →Jul 2, 4:39 pm EDTHemant PorwalEVP Supply Chain & Operations3——16,621—
Jun 30, 2026 AForm 4 →Jul 2, 4:37 pm EDTLaura K ThompsonDirector2——10,990—
Jun 30, 2026 AForm 4 →Jul 2, 4:36 pm EDTGlynis BryanDirector6——4,125—
Jun 30, 2026 AForm 4 →Jul 2, 4:35 pm EDTAkash KhuranaEVP, Chief Info & Digital Off.29——30,804—
Jun 30, 2026 AForm 4 →Jul 2, 4:33 pm EDTChristine Ann WolfEVP & CHRO4——29,574—
Jun 30, 2026 AForm 4 →Jul 2, 4:32 pm EDTMichael Lonon CarterDirector1——661—
Jun 30, 2026 AForm 4 →Jul 2, 4:30 pm EDTAnne M CooneyDirector30$345.43$8,4916,323—
Jun 30, 2026 AForm 4 →Jul 2, 4:27 pm EDTMatthew J EspeDirector18——21,415—
Jun 30, 2026 AForm 4 →Jul 2, 4:25 pm EDTIndraneel DevEVP & CFO24——16,880—
Jun 30, 2026 AForm 4 →Jul 2, 4:24 pm EDTSundaram NagarajanDirector33$345.43$7,8137,267—
Jun 30, 2026 AForm 4 →Jul 2, 4:23 pm EDTDaniel J CastilloEVP & GM, EES20——15,345—
Jun 30, 2026 AForm 4 →Jul 2, 4:22 pm EDTEaswaran SundaramDirector112$345.43$31,25014,660—
Jun 30, 2026 AForm 4 →Jul 2, 4:21 pm EDTJames CameronEVP & GM, Util & Broadband30——46,469—
Jun 30, 2026 AForm 4 →Jul 2, 4:21 pm EDTDavid C WajsgrasDirector92$345.43$31,250866—
Jun 30, 2026 AFForm 4 →Jul 2, 4:18 pm EDTDirk Waugh NaylorEVP & GM, Comm & Sec Solutions296$345.43$98,2438,683—
Jun 30, 2026 AForm 4 →Jul 2, 4:18 pm EDTJames Louis SingletonDirector28——37,673—
Jun 30, 2026 AForm 4 →Jul 2, 4:17 pm EDTJohn EngelChairman, President & CEO31——478,977—
Jun 30, 2026 AForm 4 →Jul 2, 4:16 pm EDTDiane LazzarisEVP and General Counsel4——19,615—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 4, 2026 AForm 4 →Aug 5, 5:53 pm EDTDaniel J CastilloEVP & GM, EES914——914—
Jul 23, 2026 AForm 4 →Jul 27, 4:45 pm EDTAnthony S MarinoEVP & CHRO2,335——2,335—