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Western Digital Corp

WDC
Exchange
Nasdaq
Industry
Computer Storage Devices
SEC CIK
0000106040

In the last 90 days, Western Digital Corp insiders filed 0 open-market purchases and 9 sales; 1,852 institutions reported holding it in 13F filings for Q2 2026, worth $206.3B in total; Maverick Capital is the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Western Digital Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
9 filings
5 insiders, $15.8M in total
Insiders trading
5
Net value
−$15.8M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Western Digital Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Western Digital Corp
NameTitleLast reported holdingLast filingFilings, past year
Tregillis Cynthia LChief Legal Officer & Corp Sec111,030Sep 21, 202621
Tan IrvingChief Executive Officer265,613Sep 21, 202619
Streeter Stephanie ADirector34,807IndirectSep 21, 20266
Shihab Ahmed MohammedChief Product Officer158,608Sep 21, 20265
Sennesael KrisChief Financial Officer173,709Sep 21, 20267
Oulman RoxanneDirector3,863Sep 21, 20266
Massengill Matthew EDirector0IndirectSep 21, 20266
Kiddoo Bruce EDirector3,903Sep 21, 20268
Gubbi Vidyadhara KChief of Global Operations80,571Sep 21, 202620
Feller BradSVP, Global Accounting & Chief12,043Sep 21, 20266
Doluca TuncDirector37,849IndirectSep 21, 20265
Davis Brian ScottChief Sales & Mrktng Officer99,491Sep 21, 202618
Das ManuvirDirector772Sep 21, 20263
Cole Martin IDirector21,433Sep 21, 202612
Alexy KimberlyDirector1,585Sep 21, 20267
Zamiska Gene M.SVP & Princ. Acctg Officer27,425Sep 22, 20250
Bennett Don RInterim CFO104,554Mar 10, 20250
Jabre Wissam GEVP & CFO335,672Mar 3, 20250
Goeckeler DavidChief Executive Officer812,303Dec 2, 20240
Soderbery RobertEVP & GM, Flash Business132,940Dec 2, 20240
Caulfield ThomasDirector21,737Nov 22, 20240
Suzuki MiyukiDirector18,160Nov 22, 20240
Ray Michael CharlesEVP, Chief Legal Officer & Sec178,008Nov 28, 20230
Sivaram SrinivasanPresident, Tech & Strategy310,315Sep 6, 20230
Rayman Reed BDirector0May 24, 20230
Price Paula ADirector7,545Feb 1, 20220
Eulau Robert KEVP & CFO131,981Sep 17, 20210
Hunkler SeanEVP, Global Operations156,560Sep 17, 20210
Sundberg Lori SEVP & Chief Human Res Officer62,795Aug 10, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Feb 6, 2026 (view filing)Feb 6Same dayTregillis Cynthia LChief Legal Officer & Corp SecSSale−6.78K$270.49−$1.83M−4.7%136.5K after
Feb 19, 2026 (view filing)Feb 172 daysDavis Brian ScottChief Sales & Mrktng OfficerSSale−10.0K$279.16−$2.79M−7.6%121.8K after12 lots10b5-1
Feb 24, 2026 (view filing)Feb 23-241 dayTregillis Cynthia LChief Legal Officer & Corp SecSSale−438$282.33−$123.7K−0.3%134.8K after2 lots10b5-1
Feb 27, 2026 (view filing)Feb 261 dayTregillis Cynthia LChief Legal Officer & Corp SecSSale−214$286.11−$61.2K−0.2%133.8K after10b5-1
Mar 3, 2026 (view filing)Mar 21 dayCole Martin IDirectorSSale−6.00K$271.67−$1.63M−16.9%29.4K after14 lots10b5-1
Mar 5, 2026 (view filing)Mar 41 dayGubbi Vidyadhara KChief of Global OperationsSSale−10.1K$270.31−$2.74M−8.6%107.8K after2 lots
Mar 5, 2026 (view filing)Mar 41 dayTregillis Cynthia LChief Legal Officer & Corp SecSSale−9.32K$268.28−$2.50M−7.1%121.7K after2 lots10b5-1
Mar 10, 2026 (view filing)Mar 64 daysGubbi Vidyadhara KChief of Global OperationsSSale−8.52K$255.33−$2.17M−7.9%99.3K after
Apr 22, 2026 (view filing)Apr 211 dayTregillis Cynthia LChief Legal Officer & Corp SecSSale−363$377.09−$136.9K−0.3%120.0K after10b5-1
May 5, 2026 (view filing)May 14 daysTan IrvingChief Executive OfficerSSale−20.0K$411.84−$8.24M−3.2%598.1K after9 lots10b5-1
May 5, 2026 (view filing)May 41 dayGubbi Vidyadhara KChief of Global OperationsSSale−4.67K$443.19−$2.07M−4.9%90.0K after
May 12, 2026 (view filing)May 111 dayDavis Brian ScottChief Sales & Mrktng OfficerSSale−10.0K$500.69−$5.01M−8.7%105.6K after18 lots10b5-1
May 22, 2026 (view filing)May 211 dayTregillis Cynthia LChief Legal Officer & Corp SecSSale−106$458.87−$48.6K−0.1%118.4K after10b5-1
May 27, 2026 (view filing)May 22-275 daysTregillis Cynthia LChief Legal Officer & Corp SecSSale−522$509.53−$266.0K−0.4%117.2K after2 lots10b5-1
May 29, 2026 (view filing)May 281 dayKiddoo Bruce EDirectorSSale−750$528.52−$396.4K−16.1%3.90K after
Jun 2, 2026 (view filing)Jun 11 dayGubbi Vidyadhara KChief of Global OperationsSSale−2.48K$556.24−$1.38M−2.8%85.2K after
Jun 5, 2026 (view filing)Jun 5Same dayTregillis Cynthia LChief Legal Officer & Corp SecSSale−432$545.60−$235.7K−0.4%116.6K after10b5-1
Jun 11, 2026 (view filing)Jun 92 daysCole Martin IDirectorSSale−3.28K$511.16−$1.68M−11.1%26.2K after30 lots10b5-1
Jun 11, 2026 (view filing)Jun 92 daysCole Martin IDirectorSSale−720$536.01−$385.9K−2.8%25.4K after14 lots10b5-1
Jul 21, 2026 (view filing)8:56 PM ETJul 21Same dayTregillis Cynthia LChief Legal Officer & Corp SecSSale−808$529.63−$427.9K−0.7%114.5K after10b5-1
Jul 29, 2026 (view filing)7:31 PM ETJul 281 dayCole Martin IDirectorSSale−3.81K$448.66−$1.71M−15.0%21.6K after30 lots10b5-1
Jul 29, 2026 (view filing)7:32 PM ETJul 281 dayCole Martin IDirectorSSale−192$462.77−$88.9K−0.9%21.4K after2 lots10b5-1
Aug 12, 2026 (view filing)9:24 PM ETAug 111 dayTan IrvingChief Executive OfficerSSale−20.0K$444.97−$8.90M−3.4%576.0K after7 lots10b5-1
Aug 24, 2026 (view filing)7:00 PM ETAug 21-243 daysTregillis Cynthia LChief Legal Officer & Corp SecSSale−919$454.12−$417.3K−0.8%112.1K after2 lots10b5-1
Aug 27, 2026 (view filing)8:05 PM ETAug 26-271 dayTregillis Cynthia LChief Legal Officer & Corp SecSSale−1.48K$469.51−$696.3K−1.3%112.2K after2 lots10b5-1
Sep 2, 2026 (view filing)6:03 PM ETAug 31-Sep 12 daysStreeter Stephanie ADirectorSSale−5.60K$449.87−$2.52M−13.9%34.8K after3 lots
Sep 8, 2026 (view filing)8:13 PM ETSep 44 daysGubbi Vidyadhara KChief of Global OperationsSSale−1.79K$459.87−$825.5K−2.2%80.6K after
Sep 8, 2026 (view filing)8:13 PM ETSep 44 daysTregillis Cynthia LChief Legal Officer & Corp SecSSale−432$451.20−$194.9K−0.4%111.0K after10b5-1