Form 4 Tracker
WESTERN DIGITAL CORP
WDC

74 insider filings · Latest: Jun 17, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Feb 6, 2026Feb 6 11:09 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
6,780$270.49$1.8M136,538(D)

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Feb 5, 2026Feb 6 11:09 PMMatthew E MassengillDirector
Sale
36,926$260.43$9.6M0(I)

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Feb 6, 2026Feb 6 9:02 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
6,780$270.49$1.8M

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Feb 5, 2026Feb 5 9:29 PMMASSENGILL LIVING TRUST
Proposed Sale
36,926$269.41$9.9M

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Feb 2, 2026Feb 4 11:17 PMIrving TanDirector, Chief Executive Officer
Sale
20,000$255.44$5.1M623,586(D)

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Feb 2, 2026Feb 2 9:06 PMIRVING TAN
Proposed Sale
20,000$255.44$5.1M

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Jan 21, 2026Jan 21 10:14 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
447$229.00$102.4K143,318(D)

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Jan 21, 2026Jan 21 9:01 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
447$229.00$102.4K

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Dec 5, 2025Dec 5 10:07 PMVIDYADHARA K GUBBI
Proposed Sale
6,469$168.47$1.1M

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Dec 5, 2025Dec 5 9:04 PMVIDYADHARA K GUBBI
Proposed Sale
2,474$167.30$413.9K

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Dec 4, 2025Dec 4 10:13 PMVIDYADHARA K GUBBI
Proposed Sale
13,877$159.94$2.2M

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Dec 4, 2025Dec 4 9:07 PMKIMBERLY ALEXY
Proposed Sale
2,000$160.08$320.2K

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Dec 2, 2025Dec 2 9:05 PMCynthia LOCK TREGILLIS
Proposed Sale
2,801$160.57$449.8K

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Nov 26, 2025Nov 26 9:01 PMGENE M ZAMISKA
Proposed Sale
814$157.03$127.8K

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Nov 25, 2025Nov 25 9:23 PMROXANNE OULMAN
Proposed Sale
1,800$154.42$278.0K

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Nov 25, 2025Nov 25 9:12 PMKIMBERLY ALEXY
Proposed Sale
1,768$154.00$272.3K

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Nov 24, 2025Nov 24 9:03 PMGENE M ZAMISKA
Proposed Sale
458$142.59$65.3K

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Nov 21, 2025Nov 21 9:03 PMGENE M ZAMISKA
Proposed Sale
468$139.50$65.3K

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Nov 5, 2025Nov 5 9:02 PMMartin I Cole
Proposed Sale
16,000$152.18$2.4M

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Nov 3, 2025Nov 3 9:03 PMIRVING TAN
Proposed Sale
20,000$150.69$3.0M

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Mar 18, 2026Mar 19 10:44 PMStephanie A StreeterDirector
Grant/Award
0.651.782(D)

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Mar 18, 2026Mar 19 10:44 PMKris SennesaelChief Financial Officer
Grant/Award
69.481578.09(D)

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Mar 18, 2026Mar 19 10:44 PMRoxanne OulmanDirector
Grant/Award
0.651.782(D)

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Mar 18, 2026Mar 19 10:42 PMMatthew E MassengillDirector
Grant/Award
11.885104.737(D)

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Mar 18, 2026Mar 19 10:42 PMBruce E KiddooDirector
Grant/Award
0.651.782(D)

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Mar 18, 2026Mar 19 10:42 PMVidyadhara K GubbiChief of Global Operations
Grant/Award
34.658289.684(D)

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Mar 18, 2026Mar 19 10:42 PMBrad FellerSVP & Chief Accounting Officer
Grant/Award
4.06511.141(D)

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Mar 18, 2026Mar 19 10:41 PMTunc DolucaDirector
Grant/Award
0.651.782(D)

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Mar 18, 2026Mar 19 10:41 PMBrian Scott DavisChief Sales & Mrktng Officer
Grant/Award
26.163217.425(D)

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Mar 18, 2026Mar 19 10:41 PMMartin I ColeDirector
Grant/Award
0.7862.154(D)

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Mar 18, 2026Mar 19 10:41 PMKimberly AlexyDirector
Grant/Award
0.651.782(D)

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Mar 18, 2026Mar 19 9:38 PMAhmed Mohammed ShihabChief Product Officer
Grant/Award
75.765450.847(D)

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Mar 17, 2026Mar 19 9:38 PMAhmed Mohammed ShihabChief Product Officer
Option Exercise
196.557375.082(D)

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Mar 3, 2026Mar 6 12:55 AMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
23.813304.413(D)

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Mar 3, 2026Mar 6 12:54 AMIrving TanDirector, Chief Executive Officer
Option Exercise
92.869875.613(D)

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Mar 3, 2026Mar 6 12:54 AMVidyadhara K GubbiChief of Global Operations
Option Exercise
47.627255.026(D)

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Mar 3, 2026Mar 6 12:54 AMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
23.813191.262(D)

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Feb 25, 2026Feb 27 9:57 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
6.562328.226(D)

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Feb 25, 2026Feb 27 9:57 PMIrving TanDirector, Chief Executive Officer
Option Exercise
27.017968.482(D)

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Feb 25, 2026Feb 27 9:57 PMVidyadhara K GubbiChief of Global Operations
Option Exercise
7.724302.652(D)

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