Seagate Technology (STX)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-07 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: Seagate Technology Holdings plc (STX) CIK: 0001137789 --- Reporting Owner --- Name: Romano Gianluca CIK: 0001764650 Role: Officer (EVP & CFO) --- Non-Derivative Transactions --- [Transaction #1] Security: Ordinary Shares Date: 2026-08-07 | Code: S (Open market sale) Shares: -80 | Price: $835.77 Total Value: $66,861.60 Shares Owned After: 21,463.25 | Ownership: D (Direct) Footnotes: [F1] All sales transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2026 [Transaction #2] Security: Ordinary Shares Date: 2026-08-07 | Code: S (Open market sale) Shares: -80 | Price: $838.84 Total Value: $67,107.20 Shares Owned After: 21,383.25 | Ownership: D (Direct) [Transaction #3] Security: Ordinary Shares Date: 2026-08-07 | Code: S (Open market sale) Shares: -120 | Price: $841.16 Total Value: $100,939.20 Shares Owned After: 21,263.25 | Ownership: D (Direct) [Transaction #4] Security: Ordinary Shares Date: 2026-08-07 | Code: S (Open market sale) Shares: -80 | Price: $842.86 Total Value: $67,428.80 Shares Owned After: 21,183.25 | Ownership: D (Direct) [Transaction #5] Security: Ordinary Shares Date: 2026-08-07 | Code: S (Open market sale) Shares: -40 | Price: $844.40 Total Value: $33,776.00 Shares Owned After: 21,143.25 | Ownership: D (Direct) [Transaction #6] Security: Ordinary Shares Date: 2026-08-07 | Code: S (Open market sale) Shares: -80 | Price: $846.73 Total Value: $67,738.00 Shares Owned After: 21,063.25 | Ownership: D (Direct) Footnotes: [F2] These Ordinary Shares were sold in multiple trades at prices ranging from $846.46 to $846.99. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #7] Security: Ordinary Shares Date: 2026-08-07 | Code: S (Open market sale) Shares: -160 | Price: $849.03 Total Value: $135,844.80 Shares Owned After: 20,903.25 | Ownership: D (Direct) Footnotes: [F3] These Ordinary Shares were sold in multiple trades at prices ranging from $848.69 to $849.37. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. [Transaction #8] Security: Ordinary Shares Date: 2026-08-07 | Code: S (Open market sale) Shares: -240 | Price: $850.04 Total Value: $204,010.01 Shares Owned After: 20,663.25 | Ownership: D (Direct) Footnotes: [F4] These Ordinary Shares were sold in multiple trades at prices ranging from $849.85 to $850.80. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. --- Footnotes (Complete Index) --- F1: All sales transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2026 F2: These Ordinary Shares were sold in multiple trades at prices ranging from $846.46 to $846.99. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F3: These Ordinary Shares were sold in multiple trades at prices ranging from $848.69 to $849.37. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. F4: These Ordinary Shares were sold in multiple trades at prices ranging from $849.85 to $850.80. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. --- Signature --- /s/ /s/ Louis J. Thorson, Attorney-in-Fact for Gianluca Romano (2026-08-11)