Seagate Technology (STX)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-11 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: Seagate Technology Holdings plc (STX) CIK: 0001137789 --- Reporting Owner --- Name: Teh Ban Seng CIK: 0001801425 Role: Officer (EVP & Chief Commercial Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Ordinary Shares Date: 2026-09-11 | Code: M (Exercise of derivative) Shares: +989 | Price: $0.00 Shares Owned After: 6,799 | Ownership: D (Direct) [Transaction #2] Security: Ordinary Shares Date: 2026-09-14 | Code: S (Open market sale) Shares: -989 | Price: $779.00 Total Value: $770,431.00 Shares Owned After: 5,810 | Ownership: D (Direct) Footnotes: [F1] These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on February 11, 2026. --- Derivative Transactions --- [Transaction #1] Security: Restricted Share Unit Date: 2026-09-11 | Code: M (Exercise of derivative) Shares: -989 | Price: $0.00 Exercise Price: $0.00 Shares Owned After: 3,956 | Ownership: D (Direct) Footnotes: [F2] Consists of a grant of RSUs awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments thereafter. [F2] Consists of a grant of RSUs awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments thereafter. --- Footnotes (Complete Index) --- F1: These Ordinary Shares were sold under a Rule 10b5-1 trading plan adopted by the Reporting Person on February 11, 2026. F2: Consists of a grant of RSUs awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments thereafter. --- Signature --- /s/ /s/ Louis J. Thorson, Attorney-in-Fact for Ban Seng Teh (2026-09-15)