Form 4 Tracker
Seagate Technology Holdings plc
STX

89 insider filings · Latest: Oct 1, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jul 30, 2026Aug 3 8:14 PMJames CI LeeEVP & CLO
Sale
694$877.45$609.0K346.75(D)

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Jul 30, 2026Jul 30 8:21 PMJAMES LEE
Proposed Sale
694$764.43$530.5K—

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Jul 23, 2026Jul 24 8:18 PMJames CI LeeEVP & CLO
Sale
542.25$905.01$490.7K1,018.75(D)

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Jul 23, 2026Jul 23 9:50 PMLee James CI
Proposed Sale
543$903.76$490.7K—

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Jul 1, 2026Jul 2 8:40 PMWilliam D MosleyDirector, CEO
Sale
9,343$924.42$8.6M311,517(D)

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Jul 1, 2026Jul 2 8:40 PMWilliam D MosleyDirector, CEO
Sale
20,657$910.48$18.8M320,860(D)

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Jun 12, 2026Jun 15 9:45 PMJohn Christopher MorrisEVP & CTO
Sale
1,364$880.19$1.2M12,088.25(D)

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Jun 12, 2026Jun 15 9:45 PMBan Seng TehEVP & Chief Commercial Officer
Sale
989$880.19$870.5K4,290(D)

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Jun 12, 2026Jun 15 9:44 PMGianluca RomanoEVP & CFO
Sale
903.25$880.19$795.0K42,860.25(D)

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Jun 12, 2026Jun 15 9:44 PMWilliam D MosleyDirector, CEO
Sale
1,768.25$880.19$1.6M327,517(D)

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Jun 12, 2026Jun 13 1:27 AMMorris John Christopher
Proposed Sale
466$868.09$404.5K—

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Jun 12, 2026Jun 13 1:24 AMMOSLEY WILLIAM D
Proposed Sale
1,769$868.09$1.5M—

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Jun 12, 2026Jun 13 1:22 AMRomano Gianluca
Proposed Sale
904$868.09$784.8K—

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Jun 12, 2026Jun 12 8:05 PMBAN SENG TEH
Proposed Sale
989$880.19$870.5K—

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Jun 10, 2026Jun 11 8:29 PMBan Seng TehEVP & Chief Commercial Officer
Sale
663$821.86$544.9K4,290(D)

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Jun 10, 2026Jun 11 8:29 PMJohn Christopher MorrisEVP & CTO
Sale
573.75$821.66$471.4K12,510.25(D)

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Jun 10, 2026Jun 11 8:29 PMWilliam D MosleyDirector, CEO
Sale
2,854.75$821.74$2.3M325,966.25(D)

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Jun 10, 2026Jun 11 8:29 PMGianluca RomanoEVP & CFO
Sale
1,350.5$821.76$1.1M42,068.5(D)

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Jun 10, 2026Jun 11 11:33 AMRomano Gianluca
Proposed Sale
1,351$876.77$1.2M—

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Jun 10, 2026Jun 11 11:14 AMMOSLEY WILLIAM D
Proposed Sale
2,855$876.77$2.5M—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Feb 20, 2026Feb 23 10:20 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
5,905$0.000(D)

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Feb 22, 2026Feb 23 10:20 PMGianluca RomanoEVP & CFO
Option Exercise
14,043$0.000(D)

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Feb 20, 2026Feb 23 10:20 PMGianluca RomanoEVP & CFO
Option Exercise
11,807$0.000(D)

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Feb 20, 2026Feb 23 10:20 PMKian Fatt ChongEVP Global Operations
Option Exercise
4,427$0.000(D)

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Feb 20, 2026Feb 23 10:20 PMWilliam D MosleyDirector, CEO
Option Exercise
11,807$0.000(D)

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Feb 20, 2026Feb 23 10:20 PMJohn Christopher MorrisEVP & CTO
Option Exercise
4,427$0.000(D)

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Jan 29, 2026Feb 2 9:13 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
9,433$101.3418,867(D)

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Jan 22, 2026Jan 26 9:06 PMJames CI LeeEVP & CLO
Option Exercise
1,237—12,376(D)

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