Form 4 Tracker
WESTERN DIGITAL CORP
WDC

109 insider filings · Latest: Sep 17, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
May 4, 2026May 4 8:48 PMVIDYADHARA K GUBBI
Proposed Sale
4,674$443.19$2.1M—

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May 1, 2026May 1 8:03 PMIRVING TAN
Proposed Sale
20,000$411.84$8.2M—

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Apr 21, 2026Apr 22 11:28 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
363$377.09$136.9K120,023(D)

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Apr 21, 2026Apr 21 8:03 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
363$377.09$136.9K—

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Mar 6, 2026Mar 10 9:44 PMVidyadhara K GubbiChief of Global Operations
Sale
8,518$255.33$2.2M99,276(D)

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Mar 6, 2026Mar 6 9:10 PMVIDYADHARA K GUBBI
Proposed Sale
8,518$255.33$2.2M—

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Mar 4, 2026Mar 6 12:55 AMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
9,324$268.27$2.5M121,682(D)

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Mar 4, 2026Mar 6 12:54 AMVidyadhara K GubbiChief of Global Operations
Sale
10,148$270.31$2.7M107,794(D)

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Mar 4, 2026Mar 4 9:52 PMVIDYADHARA K GUBBI
Proposed Sale
10,148$270.31$2.7M—

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Mar 4, 2026Mar 4 9:05 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
8,547$269.22$2.3M—

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Mar 4, 2026Mar 4 9:04 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
777$257.91$200.4K—

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Mar 2, 2026Mar 4 12:05 AMMartin I ColeDirector
Sale
6,000$271.67$1.6M29,433(D)

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Mar 2, 2026Mar 2 9:07 PMMartin I Cole
Proposed Sale
6,000$282.25$1.7M—

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Feb 26, 2026Feb 27 9:57 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
214$286.11$61.2K133,781(D)

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Feb 26, 2026Feb 26 9:08 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
214$286.11$61.2K—

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Feb 24, 2026Feb 24 10:44 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
308$281.70$86.8K134,759(D)

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Feb 23, 2026Feb 24 10:44 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
130$283.83$36.9K135,067(D)

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Feb 24, 2026Feb 24 9:01 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
308$281.70$86.8K—

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Feb 23, 2026Feb 23 9:31 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
130$283.83$36.9K—

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Feb 17, 2026Feb 19 10:25 PMBrian Scott DavisChief Sales & Mrktng Officer
Sale
10,000$279.16$2.8M121,792(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Feb 25, 2026Feb 27 9:57 PMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
6.562—215.075(D)

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Feb 21, 2026Feb 24 10:44 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
9.44—334.788(D)

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Feb 20, 2026Feb 24 10:44 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
3.234—344.228(D)

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Feb 21, 2026Feb 24 10:44 PMIrving TanDirector, Chief Executive Officer
Option Exercise
21.096—995.499(D)

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Feb 20, 2026Feb 24 10:44 PMIrving TanDirector, Chief Executive Officer
Option Exercise
11.19—1,016.595(D)

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Feb 21, 2026Feb 24 10:43 PMVidyadhara K GubbiChief of Global Operations
Option Exercise
4.688—310.376(D)

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Feb 20, 2026Feb 24 10:43 PMVidyadhara K GubbiChief of Global Operations
Option Exercise
4.003—315.064(D)

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Feb 21, 2026Feb 24 10:43 PMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
4.01—221.637(D)

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Feb 20, 2026Feb 24 10:43 PMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
4.836—225.647(D)

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Jan 20, 2026Jan 21 10:14 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
11.133—347.462(D)

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