Form4insider filings, from the source

Insider · CIK 0002057088

Cynthia L Tregillis

Files at: WDC. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $2.0M · 5net −$2.0M
$10k$10k$100k$100k$1M$1MbuyssalesJun 4Jun 19Jul 5Jul 20Aug 5Aug 20Sep 5

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 4, 2026 SForm 4 →Sep 8, 8:13 pm EDTWESTERN DIGITAL CORPWDC432$451.20$194,918111,030−0.39%10b5-1
Sep 3, 2026 FMForm 4 →Sep 8, 8:13 pm EDTWESTERN DIGITAL CORPWDC707$441.57$309,099111,462—10b5-1
Aug 26, 2026 SForm 4 →Aug 27, 8:05 pm EDTWESTERN DIGITAL CORPWDC1,483$469.51$696,280112,155−1.31%10b5-1
Aug 25, 2026 AFMForm 4 →Aug 27, 8:05 pm EDTWESTERN DIGITAL CORPWDC6,296$463.06$1,112,272113,162—10b5-1
Aug 21, 2026 SForm 4 →Aug 24, 7:00 pm EDTWESTERN DIGITAL CORPWDC919$454.12$417,339112,146−0.81%10b5-1
Aug 20, 2026 FMForm 4 →Aug 24, 7:00 pm EDTWESTERN DIGITAL CORPWDC1,502$461.89$687,289112,830—10b5-1
Jul 21, 2026 SForm 4 →Jul 21, 8:56 pm EDTWESTERN DIGITAL CORPWDC808$529.63$427,941114,539−0.70%10b5-1
Jul 20, 2026 FMForm 4 →Jul 21, 8:56 pm EDTWESTERN DIGITAL CORPWDC1,322$487.42$638,033115,347—10b5-1
Jun 5, 2026 SForm 4 →Jun 5, 6:58 pm EDTWESTERN DIGITAL CORPWDC432$545.60$235,699116,643−0.37%10b5-1
Jun 3, 2026 FMForm 4 →Jun 5, 6:58 pm EDTWESTERN DIGITAL CORPWDC705$594.11$415,283117,075—10b5-1

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 17, 2026 AForm 4 →Sep 21, 6:36 pm EDTWESTERN DIGITAL CORPWDC27——298—
Sep 3, 2026 MForm 4 →Sep 8, 8:13 pm EDTWESTERN DIGITAL CORPWDC7——270—10b5-1
Aug 25, 2026 MForm 4 →Aug 27, 8:05 pm EDTWESTERN DIGITAL CORPWDC17——278—10b5-1
Aug 20, 2026 MForm 4 →Aug 24, 7:00 pm EDTWESTERN DIGITAL CORPWDC15——295—10b5-1
Jul 20, 2026 MForm 4 →Jul 21, 8:56 pm EDTWESTERN DIGITAL CORPWDC13——310—10b5-1
Jun 17, 2026 AForm 4 →Jun 22, 9:16 pm EDTWESTERN DIGITAL CORPWDC19——323—
Jun 3, 2026 MForm 4 →Jun 5, 6:58 pm EDTWESTERN DIGITAL CORPWDC7——304—10b5-1