Form 4 Tracker
WESTERN DIGITAL CORP
WDC

41 insider filings · Latest: May 11, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
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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Feb 17, 2026Feb 17 9:18 PMBRIAN SCOTT DAVIS
Proposed Sale
10,000$279.16$2.8M

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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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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
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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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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