Form 4 Tracker
Seagate Technology Holdings plc
STX

60 insider filings · Latest: Aug 13, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
May 20, 2026May 20 8:39 PMWILLIAM D. MOSLEY
Proposed Sale
30,000$733.35$22.0M

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May 14, 2026May 14 8:52 PMBan Seng TehEVP & Chief Commercial Officer
Sale
8,003$817.28$6.5M3,691(D)

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May 13, 2026May 14 8:52 PMBan Seng TehEVP & Chief Commercial Officer
Sale
7,557$813.45$6.1M3,691(D)

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May 14, 2026May 14 8:12 PMBAN SENG TEH
Proposed Sale
8,003$817.28$6.5M

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May 13, 2026May 13 8:04 PMBAN SENG TEH
Proposed Sale
7,557$813.45$6.1M

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May 7, 2026May 8 9:00 PMGianluca RomanoEVP & CFO
Sale
1,902$770.00$1.5M40,945(D)

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May 6, 2026May 8 9:00 PMGianluca RomanoEVP & CFO
Sale
22,488$774.22$17.4M42,847(D)

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May 6, 2026May 6 8:53 PMGIANLUCA ROMANO
Proposed Sale
24,390$771.01$18.8M

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May 5, 2026May 6 8:36 PMStephanie TileniusDirector
Sale
1,580$766.61$1.2M10,664(D)

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May 4, 2026May 6 8:36 PMJohn Christopher MorrisEVP & CTO
Sale
5,626$738.37$4.2M11,954(D)

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May 4, 2026May 6 8:36 PMJames CI LeeEVP & CLO
Sale
697$741.17$516.6K324(D)

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May 5, 2026May 5 8:01 PMSTEPHANIE TILENIUS
Proposed Sale
1,580$766.61$1.2M

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May 4, 2026May 4 8:34 PMJOHN MORRIS
Proposed Sale
6,692$726.93$4.9M

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May 4, 2026May 4 8:31 PMJAMES LEE
Proposed Sale
697$726.93$506.7K

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Apr 1, 2026Apr 2 8:53 PMWilliam D MosleyDirector, CEO
Sale
20,000$420.73$8.4M355,591(D)

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Apr 1, 2026Apr 1 8:39 PMWILLIAM MOSLEY
Proposed Sale
20,000$391.76$7.8M

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Mar 19, 2026Mar 23 8:20 PMWilliam D MosleyDirector, CEO
Sale
24,584$406.77$10.0M375,591(D)

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Mar 13, 2026Mar 16 8:30 PMJohn Christopher MorrisEVP & CTO
Sale
112$377.44$42.3K17,580(D)

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Mar 13, 2026Mar 13 8:21 PMJOHN MORRIS
Proposed Sale
112$373.98$41.9K

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Mar 2, 2026Mar 3 11:14 PMWilliam D MosleyDirector, CEO
Sale
20,000$384.76$7.7M395,897(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Aug 13, 2026Aug 14 8:52 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
6,002$101.3414,740(D)

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Aug 3, 2026Aug 4 10:09 PMWilliam D MosleyDirector, CEO
Option Exercise
14,000$46.23111,100(D)

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Jul 22, 2026Jul 24 8:18 PMJames CI LeeEVP & CLO
Option Exercise
1,2379,902(D)

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Jul 1, 2026Jul 2 8:40 PMWilliam D MosleyDirector, CEO
Option Exercise
14,000$46.23125,100(D)

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Jun 11, 2026Jun 15 9:45 PMJohn Christopher MorrisEVP & CTO
Option Exercise
942$0.004,710(D)

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Jun 11, 2026Jun 15 9:45 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
989$0.004,945(D)

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Jun 11, 2026Jun 15 9:45 PMKian Fatt ChongEVP Global Operations
Option Exercise
678$0.003,392(D)

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Jun 11, 2026Jun 15 9:44 PMGianluca RomanoEVP & CFO
Option Exercise
1,695$0.008,475(D)

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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
1,23711,139(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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