Form 4 Tracker
Seagate Technology Holdings plc
STX

89 insider filings · Latest: Oct 1, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
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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Mar 2, 2026Mar 3 11:14 PMYolanda Lee ConyersDirector
Sale
750$393.59$295.2K4,851(D)

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Mar 2, 2026Mar 2 9:40 PMWILLIAM MOSLEY
Proposed Sale
20,000$407.84$8.2M—

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Mar 2, 2026Mar 2 9:38 PMYOLANDA CONYERS
Proposed Sale
1,500$407.84$611.8K—

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Feb 24, 2026Feb 25 9:18 PMJohn Christopher MorrisEVP & CTO
Sale
240$410.00$98.4K16,566(D)

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Feb 24, 2026Feb 24 9:29 PMJOHN MORRIS
Proposed Sale
240$407.40$97.8K—

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Feb 23, 2026Feb 23 10:20 PMKian Fatt ChongEVP Global Operations
Sale
5,846$416.48$2.4M0(D)

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Feb 23, 2026Feb 23 9:05 PMKIAN FATT CHONG
Proposed Sale
5,846$416.48$2.4M—

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Feb 2, 2026Feb 3 9:48 PMWilliam D MosleyDirector, CEO
Sale
20,000$429.27$8.6M410,056(D)

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Feb 2, 2026Feb 2 9:34 PMWILLIAM MOSLEY
Proposed Sale
20,000$407.69$8.2M—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Oct 1, 2026Oct 2 8:07 PMWilliam D MosleyDirector, CEO
Option Exercise
14,000$46.2383,100(D)

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Sep 21, 2026Sep 22 8:49 PMJohn Christopher MorrisEVP & CTO
Option Exercise
915$158.4017,378(D)

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Sep 14, 2026Sep 16 8:10 PMGianluca RomanoEVP & CFO
Option Exercise
90,380$0.000(D)

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Sep 14, 2026Sep 16 8:10 PMKian Fatt ChongEVP Global Operations
Option Exercise
14,470$0.000(D)

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Sep 14, 2026Sep 16 8:10 PMWilliam D MosleyDirector, CEO
Option Exercise
177,000$0.000(D)

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Sep 14, 2026Sep 16 8:10 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
52,730$0.000(D)

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Sep 14, 2026Sep 16 8:10 PMJohn Christopher MorrisEVP & CTO
Option Exercise
30,130$0.000(D)

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Sep 11, 2026Sep 15 8:16 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
989$0.003,956(D)

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Sep 11, 2026Sep 15 8:16 PMKian Fatt ChongEVP Global Operations
Option Exercise
678$0.002,714(D)

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Sep 11, 2026Sep 15 8:15 PMJohn Christopher MorrisEVP & CTO
Option Exercise
942$0.003,768(D)

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Sep 11, 2026Sep 15 8:15 PMGianluca RomanoEVP & CFO
Option Exercise
1,695$0.006,780(D)

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Sep 11, 2026Sep 15 8:15 PMGianluca RomanoEVP & CFO
Option Exercise
50,498$158.4040,317(D)

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Sep 11, 2026Sep 15 8:15 PMWilliam D MosleyDirector, CEO
Option Exercise
3,319$0.0013,276(D)

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Sep 9, 2026Sep 11 8:47 PMKian Fatt ChongEVP Global Operations
Option Exercise
581$0.003,033(D)

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Sep 9, 2026Sep 11 8:47 PMBan Seng TehEVP & Chief Commercial Officer
Option Exercise
1,263$0.005,306(D)

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Sep 9, 2026Sep 11 8:47 PMJohn Christopher MorrisEVP & CTO
Option Exercise
1,131$0.005,055(D)

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Sep 9, 2026Sep 11 8:46 PMGianluca RomanoEVP & CFO
Option Exercise
2,474$0.0012,128(D)

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Sep 9, 2026Sep 11 8:46 PMWilliam D MosleyDirector, CEO
Option Exercise
5,230$0.0019,328(D)

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Sep 1, 2026Sep 3 8:51 PMWilliam D MosleyDirector, CEO
Option Exercise
14,000$46.2397,100(D)

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Aug 24, 2026Aug 26 8:21 PMJames CI LeeEVP & CLO
Option Exercise
4,032$158.4012,096(D)

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