Form 4 Tracker
WESTERN DIGITAL CORP
WDC

74 insider filings · Latest: Jun 17, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 9, 2026Jun 11 9:50 PMMartin I ColeDirector
Sale
720$536.01$385.9K25,433(D)

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Jun 9, 2026Jun 11 9:47 PMMartin I ColeDirector
Sale
3,280$511.16$1.7M26,153(D)

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Jun 9, 2026Jun 9 9:17 PMMartin I Cole
Proposed Sale
8,000$526.93$4.2M

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Jun 5, 2026Jun 5 10:58 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
432$545.60$235.7K116,643(D)

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Jun 5, 2026Jun 5 8:07 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
432$545.60$235.7K

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Jun 1, 2026Jun 2 9:17 PMVidyadhara K GubbiChief of Global Operations
Sale
2,475$556.24$1.4M85,154(D)

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Jun 1, 2026Jun 1 8:14 PMVIDYADHARA K GUBBI
Proposed Sale
2,475$556.24$1.4M

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May 28, 2026May 29 10:13 PMBruce E KiddooDirector
Sale
750$528.52$396.4K3,903(D)

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May 28, 2026May 28 10:05 PMKIDDOO FAMILY TRUST U/A DTD 02/07/2012
Proposed Sale
750$528.52$396.4K

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May 27, 2026May 27 10:41 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
214$539.63$115.5K117,157(D)

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May 22, 2026May 27 10:41 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
308$488.61$150.5K118,135(D)

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May 27, 2026May 27 8:04 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
214$539.63$115.5K

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May 21, 2026May 22 11:24 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
106$458.87$48.6K118,443(D)

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May 22, 2026May 22 8:26 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
308$488.61$150.5K

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May 21, 2026May 21 8:01 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
106$458.87$48.6K

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May 11, 2026May 13 1:06 AMBrian Scott DavisChief Sales & Mrktng Officer
Sale
10,000$500.69$5.0M105,564(D)

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May 11, 2026May 11 8:01 PMBRIAN SCOTT DAVIS
Proposed Sale
10,000$500.69$5.0M

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May 4, 2026May 5 10:14 PMVidyadhara K GubbiChief of Global Operations
Sale
4,674$443.19$2.1M90,041(D)

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May 1, 2026May 5 10:14 PMIrving TanDirector, Chief Executive Officer
Sale
20,000$411.84$8.2M598,150(D)

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May 4, 2026May 4 8:48 PMVIDYADHARA K GUBBI
Proposed Sale
4,674$443.19$2.1M

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Page 1 of 5

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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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