Form 4 Tracker
WESTERN DIGITAL CORP
WDC

109 insider filings · Latest: Sep 17, 2026

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

View →

Feb 6, 2026Feb 6 11:09 PMCynthia L TregillisChief Legal Officer & Corp Sec
Sale
6,780$270.49$1.8M136,538(D)

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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)

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

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

View →

← Previous

Page 6 of 6