Form 4 Tracker
WESTERN DIGITAL CORP
WDC

78 insider filings · Latest: Aug 11, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Nov 25, 2025Nov 25 9:23 PMROXANNE OULMAN
Proposed Sale
1,800$154.42$278.0K

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

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

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

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

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Nov 3, 2025Nov 3 9:03 PMIRVING TAN
Proposed Sale
20,000$150.69$3.0M

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Sep 4, 2025Sep 4 8:06 PMVIDYADHARA K GUBBI
Proposed Sale
11,343$90.29$1.0M

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Aug 28, 2025Aug 28 8:01 PMGENE M ZAMISKA
Proposed Sale
353$80.90$28.6K

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Aug 26, 2025Aug 26 8:05 PMGENE M ZAMISKA
Proposed Sale
814$79.10$64.4K

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Aug 22, 2025Aug 22 8:02 PMCYNTHIA LOCK TREGILLIS
Proposed Sale
14,067$74.78$1.1M

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Aug 22, 2025Aug 22 8:02 PMGENE M ZAMISKA
Proposed Sale
1,828$74.78$136.7K

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Aug 21, 2025Aug 21 8:06 PMGENE M ZAMISKA
Proposed Sale
3,160$75.68$239.1K

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Aug 19, 2025Aug 19 8:18 PMIRVING TAN
Proposed Sale
8,621$75.90$654.3K

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Aug 13, 2025Aug 13 8:05 PMVIDYADHARA K GUBBI
Proposed Sale
5,597$76.26$426.8K

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Aug 11, 2025Aug 11 8:28 PMVIDYADHARA K GUBBI
Proposed Sale
3,947$74.88$295.5K

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Jun 17, 2025Jun 17 8:02 PMGENE M ZAMISKA
Proposed Sale
245$58.01$14.2K

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Jun 5, 2025Jun 5 8:15 PMGENE M ZAMISKA
Proposed Sale
1,729$54.88$94.9K

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May 13, 2025May 13 8:02 PMIRVING TAN
Proposed Sale
11,379$48.19$548.4K

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Mar 12, 2025Mar 12 8:01 PMGENE M ZAMISKA
Proposed Sale
456$43.37$19.8K

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Mar 7, 2025Mar 7 10:06 PMGENE M ZAMISKA
Proposed Sale
1,659$41.36$68.6K

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jul 20, 2026Jul 22 12:56 AMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
13.197309.804(D)

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Jun 17, 2026Jun 23 1:16 AMCynthia L TregillisChief Legal Officer & Corp Sec
Grant/Award
18.638323.001(D)

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Jun 20, 2026Jun 23 1:16 AMIrving TanDirector, Chief Executive Officer
Option Exercise
52.111886.663(D)

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Jun 17, 2026Jun 23 1:16 AMIrving TanDirector, Chief Executive Officer
Grant/Award
56.501938.774(D)

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Jun 17, 2026Jun 23 1:16 AMStephanie A StreeterDirector
Grant/Award
0.3342.117(D)

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Jun 17, 2026Jun 23 1:16 AMAhmed Mohammed ShihabChief Product Officer
Grant/Award
27.918426.868(D)

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Jun 17, 2026Jun 23 1:16 AMAhmed Mohammed ShihabChief Product Officer
Option Exercise
51.896398.95(D)

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Jun 17, 2026Jun 23 1:16 AMKris SennesaelChief Financial Officer
Grant/Award
27.768464.204(D)

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Jun 17, 2026Jun 23 1:16 AMRoxanne OulmanDirector
Grant/Award
0.3342.117(D)

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Jun 17, 2026Jun 23 1:16 AMMatthew E MassengillDirector
Grant/Award
6.109110.846(D)

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Jun 17, 2026Jun 23 1:16 AMBruce E KiddooDirector
Grant/Award
0.3342.117(D)

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Jun 17, 2026Jun 23 1:15 AMVidyadhara K GubbiChief of Global Operations
Grant/Award
14.079237.161(D)

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Jun 17, 2026Jun 23 1:15 AMBrad FellerSVP & Chief Accounting Officer
Grant/Award
2.08913.23(D)

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Jun 17, 2026Jun 23 1:15 AMTunc DolucaDirector
Grant/Award
0.3342.117(D)

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Jun 20, 2026Jun 23 1:15 AMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
7.695190.16(D)

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Jun 17, 2026Jun 23 1:15 AMBrian Scott DavisChief Sales & Mrktng Officer
Grant/Award
11.695197.856(D)

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Jun 17, 2026Jun 23 1:15 AMManuvir DasDirector
Grant/Award
0.1630.163(D)

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Jun 17, 2026Jun 23 1:15 AMMartin I ColeDirector
Grant/Award
0.4042.557(D)

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Jun 17, 2026Jun 23 1:15 AMKimberly AlexyDirector
Grant/Award
0.3342.117(D)

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Jun 3, 2026Jun 5 10:58 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
6.683304.364(D)

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