Form 4 Tracker
WESTERN DIGITAL CORP
WDC

78 insider filings · Latest: Aug 11, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Aug 11, 2026Aug 13 1:24 AMIrving TanDirector, Chief Executive Officer
Sale
20,000$444.97$8.9M575,966(D)

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Aug 11, 2026Aug 11 8:12 PMIRVING TAN
Proposed Sale
20,000$444.97$8.9M

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Jul 28, 2026Jul 29 11:32 PMMartin I ColeDirector
Sale
192$462.77$88.9K21,433(D)

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Jul 28, 2026Jul 29 11:31 PMMartin I ColeDirector
Sale
3,808$448.66$1.7M21,625(D)

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Jul 21, 2026Jul 22 12:56 AMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
808$529.63$427.9K114,539(D)

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Jul 21, 2026Jul 21 8:02 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
808$529.63$427.9K

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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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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Feb 25, 2026Feb 27 9:57 PMVidyadhara K GubbiChief of Global Operations
Option Exercise
7.724302.652(D)

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Feb 25, 2026Feb 27 9:57 PMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
6.562215.075(D)

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Feb 21, 2026Feb 24 10:44 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
9.44334.788(D)

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Feb 20, 2026Feb 24 10:44 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
3.234344.228(D)

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Feb 21, 2026Feb 24 10:44 PMIrving TanDirector, Chief Executive Officer
Option Exercise
21.096995.499(D)

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Feb 20, 2026Feb 24 10:44 PMIrving TanDirector, Chief Executive Officer
Option Exercise
11.191,016.595(D)

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Feb 21, 2026Feb 24 10:43 PMVidyadhara K GubbiChief of Global Operations
Option Exercise
4.688310.376(D)

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Feb 20, 2026Feb 24 10:43 PMVidyadhara K GubbiChief of Global Operations
Option Exercise
4.003315.064(D)

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Feb 21, 2026Feb 24 10:43 PMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
4.01221.637(D)

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Feb 20, 2026Feb 24 10:43 PMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
4.836225.647(D)

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Jan 20, 2026Jan 21 10:14 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
11.133347.462(D)

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