Form 4 Tracker
WESTERN DIGITAL CORP
WDC

109 insider filings · Latest: Sep 17, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
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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Nov 29, 2024Nov 29 6:27 PMGENE M ZAMISKA
Proposed Sale
313$72.63$22.7K—

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Nov 26, 2024Nov 26 9:10 PMGENE M ZAMISKA
Proposed Sale
658$69.99$46.1K—

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Nov 21, 2024Nov 21 9:05 PMGENE M ZAMISKA
Proposed Sale
376$64.47$24.2K—

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Oct 29, 2024Oct 29 9:14 PMSODERBERY ROBERT
Proposed Sale
30,767$68.01$2.1M—

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Oct 28, 2024Oct 28 9:14 PMZamiska Gene M.
Proposed Sale
1,993$69.94$139.4K—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Sep 3, 2026Sep 9 12:12 AMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
7.058—157.259(D)

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Aug 26, 2026Aug 28 12:05 AMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
9.469—277.54(D)

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Aug 25, 2026Aug 28 12:05 AMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
7.779—287.009(D)

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Aug 26, 2026Aug 28 12:05 AMIrving TanDirector, Chief Executive Officer
Option Exercise
42.416—773.939(D)

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Aug 25, 2026Aug 28 12:05 AMIrving TanDirector, Chief Executive Officer
Option Exercise
32.031—816.354(D)

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Aug 26, 2026Aug 28 12:05 AMAhmed Mohammed ShihabChief Product Officer
Option Exercise
15.906—410.962(D)

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Aug 26, 2026Aug 28 12:05 AMKris SennesaelChief Financial Officer
Option Exercise
19.882—444.322(D)

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Aug 26, 2026Aug 28 12:05 AMVidyadhara K GubbiChief of Global Operations
Option Exercise
9.469—208.241(D)

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Aug 25, 2026Aug 28 12:05 AMVidyadhara K GubbiChief of Global Operations
Option Exercise
9.149—217.71(D)

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Aug 26, 2026Aug 28 12:04 AMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
7.575—164.317(D)

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Aug 25, 2026Aug 28 12:04 AMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
7.779—171.892(D)

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Aug 21, 2026Aug 24 11:00 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
11.183—294.788(D)

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Aug 20, 2026Aug 24 11:00 PMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
3.834—305.97(D)

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Aug 21, 2026Aug 24 10:59 PMIrving TanDirector, Chief Executive Officer
Option Exercise
25.013—848.386(D)

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Aug 20, 2026Aug 24 10:59 PMIrving TanDirector, Chief Executive Officer
Option Exercise
13.265—873.398(D)

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Aug 21, 2026Aug 24 10:59 PMVidyadhara K GubbiChief of Global Operations
Option Exercise
5.558—226.858(D)

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Aug 20, 2026Aug 24 10:59 PMVidyadhara K GubbiChief of Global Operations
Option Exercise
4.745—232.416(D)

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Aug 21, 2026Aug 24 10:59 PMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
4.753—179.67(D)

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Aug 20, 2026Aug 24 10:59 PMBrian Scott DavisChief Sales & Mrktng Officer
Option Exercise
5.737—184.424(D)

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Jul 20, 2026Jul 22 12:56 AMCynthia L TregillisChief Legal Officer & Corp Sec
Option Exercise
13.197—309.804(D)

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