Form 4 Tracker
Seagate Technology Holdings plc
STX

89 insider filings · Latest: Oct 1, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Oct 1, 2026Oct 2 8:07 PMWilliam D MosleyDirector, CEO
Sale
11,002$935.60$10.3M362,108.25(D)

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Oct 1, 2026Oct 2 8:07 PMWilliam D MosleyDirector, CEO
Sale
18,998$914.67$17.4M373,110.25(D)

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Sep 21, 2026Sep 22 8:49 PMJohn Christopher MorrisEVP & CTO
Sale
9,354$877.91$8.2M22,693.25(D)

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Sep 21, 2026Sep 21 8:34 PMJOHN C MORRIS
Proposed Sale
14,849$858.79$12.8M—

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Sep 15, 2026Sep 16 8:10 PMGianluca RomanoEVP & CFO
Sale
49,983.5$772.16$38.6M70,756.5(D)

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Sep 15, 2026Sep 16 8:10 PMWilliam D MosleyDirector, CEO
Sale
97,889.25$772.14$75.6M378,108.25(D)

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Sep 15, 2026Sep 16 8:10 PMBan Seng TehEVP & Chief Commercial Officer
Sale
52,730$782.08$41.2M5,810(D)

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Sep 15, 2026Sep 16 8:10 PMJohn Christopher MorrisEVP & CTO
Sale
15,465.5$772.15$11.9M31,132.25(D)

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Sep 15, 2026Sep 16 12:03 AMRomano Gianluca
Proposed Sale
52,483$772.15$40.5M—

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Sep 15, 2026Sep 15 11:56 PMMOSLEY WILLIAM D
Proposed Sale
102,784$772.14$79.4M—

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Sep 15, 2026Sep 15 11:46 PMMorris John Christopher
Proposed Sale
16,239$772.14$12.5M—

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Sep 15, 2026Sep 15 8:21 PMBAN SENG TEH
Proposed Sale
52,730$782.08$41.2M—

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Sep 14, 2026Sep 15 8:16 PMBan Seng TehEVP & Chief Commercial Officer
Sale
989$779.00$770.4K5,810(D)

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Sep 14, 2026Sep 15 8:15 PMJohn Christopher MorrisEVP & CTO
Sale
492.75$781.23$385.0K16,467.75(D)

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Sep 14, 2026Sep 15 8:15 PMGianluca RomanoEVP & CFO
Sale
955$781.24$746.1K30,360(D)

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Sep 11, 2026Sep 15 8:15 PMGianluca RomanoEVP & CFO
Sale
4,600$854.55$3.9M29,620(D)

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Sep 11, 2026Sep 15 8:15 PMGianluca RomanoEVP & CFO
Sale
45,898$830.01$38.1M34,220(D)

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Sep 14, 2026Sep 15 8:15 PMWilliam D MosleyDirector, CEO
Sale
1,869.75$781.23$1.5M298,997.5(D)

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Sep 14, 2026Sep 15 12:06 AMMorris John Christopher
Proposed Sale
518$780.70$404.4K—

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Sep 14, 2026Sep 15 12:03 AMRomano Gianluca
Proposed Sale
1,003$781.05$783.4K—

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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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