Form 4 Tracker
Seagate Technology Holdings plc
STX

89 insider filings · Latest: Oct 1, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Aug 21, 2026Aug 24 9:11 PMJames CI LeeEVP & CLO
Sale
3,938.75$849.35$3.3M5,328(D)

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Aug 21, 2026Aug 24 9:10 PMGianluca RomanoEVP & CFO
Sale
9,076.25$849.35$7.7M28,494(D)

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Aug 21, 2026Aug 24 9:10 PMWilliam D MosleyDirector, CEO
Sale
18,138.5$849.35$15.4M311,167.5(D)

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Aug 24, 2026Aug 24 8:31 PMJAMES LEE
Proposed Sale
9,013$850.00$7.7M—

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Aug 21, 2026Aug 21 11:40 PMMorris John Christopher
Proposed Sale
3,575$849.35$3.0M—

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Aug 21, 2026Aug 21 11:34 PMMOSLEY WILLIAM D
Proposed Sale
18,200$849.35$15.5M—

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Aug 21, 2026Aug 21 11:20 PMLee James CI
Proposed Sale
4,000$849.35$3.4M—

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Aug 21, 2026Aug 21 11:17 PMRomano Gianluca
Proposed Sale
9,135$849.35$7.8M—

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Aug 21, 2026Aug 21 8:33 PMBAN SENG TEH
Proposed Sale
9,862$852.97$8.4M—

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Aug 20, 2026Aug 20 8:35 PMJOHN MORRIS
Proposed Sale
523$832.56$435.4K—

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Aug 20, 2026Aug 20 8:03 PMBAN SENG TEH
Proposed Sale
6,048$842.97$5.1M—

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Aug 13, 2026Aug 14 8:52 PMBan Seng TehEVP & Chief Commercial Officer
Sale
7,361$920.80$6.8M2,931(D)

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Aug 13, 2026Aug 13 8:18 PMBAN SENG TEH
Proposed Sale
7,361$920.80$6.8M—

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Aug 7, 2026Aug 11 8:21 PMGianluca RomanoEVP & CFO
Sale
880$845.12$743.7K20,663.25(D)

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Aug 7, 2026Aug 11 8:21 PMGianluca RomanoEVP & CFO
Sale
14,091$811.25$11.4M21,543.25(D)

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Aug 7, 2026Aug 11 8:21 PMGianluca RomanoEVP & CFO
Sale
7,240$781.64$5.7M35,634.25(D)

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Aug 7, 2026Aug 7 8:39 PMGIANLUCA ROMANO
Proposed Sale
22,211$852.95$18.9M—

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Aug 3, 2026Aug 4 10:09 PMJohn Christopher MorrisEVP & CTO
Sale
168$817.76$137.4K11,920.25(D)

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Aug 3, 2026Aug 4 10:09 PMWilliam D MosleyDirector, CEO
Sale
17,080$827.30$14.1M295,517(D)

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Aug 3, 2026Aug 4 10:09 PMWilliam D MosleyDirector, CEO
Sale
12,920$803.47$10.4M312,597(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 11, 2026Jun 15 9:44 PMWilliam D MosleyDirector, CEO
Option Exercise
3,319$0.0016,595(D)

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Jun 9, 2026Jun 11 8:29 PMKian Fatt ChongEVP Global Operations
Option Exercise
581$0.003,412(D)

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Jun 9, 2026Jun 11 8:29 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
1,262$0.005,969(D)

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Jun 9, 2026Jun 11 8:29 PMJohn Christopher MorrisEVP & CTO
Option Exercise
1,130$0.005,686(D)

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Jun 9, 2026Jun 11 8:29 PMWilliam D MosleyDirector, CEO
Option Exercise
5,230$0.0021,743(D)

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Jun 9, 2026Jun 11 8:29 PMGianluca RomanoEVP & CFO
Option Exercise
2,474$0.0013,643(D)

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Jun 1, 2026Jun 2 9:16 PMWilliam D MosleyDirector, CEO
Option Exercise
14,000$46.23139,100(D)

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May 20, 2026May 21 8:52 PMWilliam D MosleyDirector, CEO
Option Exercise
14,000$46.23153,100(D)

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May 14, 2026May 14 8:52 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
8,003$101.342,130(D)

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Apr 22, 2026Apr 23 8:54 PMJames CI LeeEVP & CLO
Option Exercise
1,237—11,139(D)

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Mar 11, 2026Mar 12 8:11 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
989$0.005,934(D)

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Mar 11, 2026Mar 12 8:11 PMGianluca RomanoEVP & CFO
Option Exercise
1,695$0.0010,170(D)

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Mar 11, 2026Mar 12 8:11 PMKian Fatt ChongEVP Global Operations
Option Exercise
678$0.004,070(D)

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Mar 11, 2026Mar 12 8:11 PMJohn Christopher MorrisEVP & CTO
Option Exercise
942$0.005,652(D)

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Mar 11, 2026Mar 12 8:11 PMWilliam D MosleyDirector, CEO
Option Exercise
3,319$0.0019,914(D)

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Mar 9, 2026Mar 11 8:14 PMJohn Christopher MorrisEVP & CTO
Option Exercise
1,130$0.006,317(D)

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Mar 9, 2026Mar 11 8:13 PMGianluca RomanoEVP & CFO
Option Exercise
2,473$0.0015,158(D)

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Mar 9, 2026Mar 11 8:13 PMWilliam D MosleyDirector, CEO
Option Exercise
5,230$0.0024,158(D)

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Mar 9, 2026Mar 11 8:13 PMKian Fatt ChongEVP Global Operations
Option Exercise
581$0.003,791(D)

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Mar 9, 2026Mar 11 8:13 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
1,262$0.006,632(D)

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