SEC INSIDER TRANSACTIONS

Seagate Technology Holdings plc (STX) Insider Transactions

Explore official ownership filings, with every record linked to its source.

Reported data · not live

STX · Seagate Technology Holdings plc

Filing window SEC codes (comma separated) Security type Order

More transaction filters

Roles: director,officer,ten_percent_owner,otherOwner nameOfficer titleOwnership: D, I, unknownoriginal or amendedTransaction fromTransaction throughFiled fromFiled throughMinimum quantityMaximum quantityMinimum priceMaximum priceMinimum calculated valueMaximum calculated valueResults per page (1–100)

OR within codes/roles; AND between categories. Roles apply to buyers and sellers. Owner predicates match the same owner. Missing values fail numeric/date filters. Value is quantity × reported price for non-derivative rows only; derivative values are unknown. Amendments stay separate; joint owners do not duplicate rows.

Reset filters

Active filters: days=6m

Stale snapshot · Covered: filings 2026-05-14 to 2026-11-13 · 71 filings · fetched 2026-11-13T20:00:40Z

Recent reported activity

0purchase rows on this page

7sale rows on this page

811matching filing rows

Purchases and sales count original non-derivative P and S rows. Awards, gifts, exercises, derivatives and amendments are shown separately and are not described as market purchases.

Transaction / filed	Reporting owner(s)	Code / security	Quantity	Price as filed	Ownership	Source
2026-09-11Filed 2026-09-15	Romano GianlucaOfficer · EVP & CFO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 All option exercises and sales of Ordinary Shares 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 $818.88 to $819.71. 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 $819.95 to $820.93. 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 $820.96 to $821.94. 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. F5 These Ordinary Shares were sold in multiple trades at prices ranging from $822.05 to $823.03. 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. F6 These Ordinary Shares were sold in multiple trades at prices ranging from $823.12 to $824.10. 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. F7 These Ordinary Shares were sold in multiple trades at prices ranging from $824.14 to $825.13. 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. F8 These Ordinary Shares were sold in multiple trades at prices ranging from $825.14 to $826.13. 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. F9 These Ordinary Shares were sold in multiple trades at prices ranging from $826.14 to $827.10. 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. F10 These Ordinary Shares were sold in multiple trades at prices ranging from $827.17 to $828.10. 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. F11 These Ordinary Shares were sold in multiple trades at prices ranging from $828.23 to $829.22. 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. F12 These Ordinary Shares were sold in multiple trades at prices ranging from $829.24 to $830.23. 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. F13 These Ordinary Shares were sold in multiple trades at prices ranging from $830.24 to $831.23. 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. F14 These Ordinary Shares were sold in multiple trades at prices ranging from $831.24 to $832.23. 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. F15 These Ordinary Shares were sold in multiple trades at prices ranging from $832.24 to $833.23. 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. F16 These Ordinary Shares were sold in multiple trades at prices ranging from $833.25 to $834.20. 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. F17 These Ordinary Shares were sold in multiple trades at prices ranging from $834.29 to $835.28. 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. F18 These Ordinary Shares were sold in multiple trades at prices ranging from $835.29 to $836.27. 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. F19 These Ordinary Shares were sold in multiple trades at prices ranging from $836.38 to $837.35. 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. F20 These Ordinary Shares were sold in multiple trades at prices ranging from $837.58 to $838.44. 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. F21 These Ordinary Shares were sold in multiple trades at prices ranging from $838.71 to $839.47. 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. F22 These Ordinary Shares were sold in multiple trades at prices ranging from $839.72 to $840.44. 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. F23 These Ordinary Shares were sold in multiple trades at prices ranging from $840.76 to $841.60. 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. F24 These Ordinary Shares were sold in multiple trades at prices ranging from $842.02 to $842.52. 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. F25 These Ordinary Shares were sold in multiple trades at prices ranging from $843.41 to $843.95. 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. F26 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2023 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F27 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 11, 2024 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F28 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One- quarter shall vest on September 9, 2025 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F29 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter vested on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	13,439A	158.4	Direct	Form 4 ↗0001137789-26-000240
2026-09-11Filed 2026-09-15	Romano GianlucaOfficer · EVP & CFO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 All option exercises and sales of Ordinary Shares 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 $818.88 to $819.71. 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 $819.95 to $820.93. 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 $820.96 to $821.94. 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. F5 These Ordinary Shares were sold in multiple trades at prices ranging from $822.05 to $823.03. 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. F6 These Ordinary Shares were sold in multiple trades at prices ranging from $823.12 to $824.10. 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. F7 These Ordinary Shares were sold in multiple trades at prices ranging from $824.14 to $825.13. 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. F8 These Ordinary Shares were sold in multiple trades at prices ranging from $825.14 to $826.13. 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. F9 These Ordinary Shares were sold in multiple trades at prices ranging from $826.14 to $827.10. 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. F10 These Ordinary Shares were sold in multiple trades at prices ranging from $827.17 to $828.10. 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. F11 These Ordinary Shares were sold in multiple trades at prices ranging from $828.23 to $829.22. 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. F12 These Ordinary Shares were sold in multiple trades at prices ranging from $829.24 to $830.23. 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. F13 These Ordinary Shares were sold in multiple trades at prices ranging from $830.24 to $831.23. 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. F14 These Ordinary Shares were sold in multiple trades at prices ranging from $831.24 to $832.23. 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. F15 These Ordinary Shares were sold in multiple trades at prices ranging from $832.24 to $833.23. 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. F16 These Ordinary Shares were sold in multiple trades at prices ranging from $833.25 to $834.20. 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. F17 These Ordinary Shares were sold in multiple trades at prices ranging from $834.29 to $835.28. 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. F18 These Ordinary Shares were sold in multiple trades at prices ranging from $835.29 to $836.27. 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. F19 These Ordinary Shares were sold in multiple trades at prices ranging from $836.38 to $837.35. 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. F20 These Ordinary Shares were sold in multiple trades at prices ranging from $837.58 to $838.44. 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. F21 These Ordinary Shares were sold in multiple trades at prices ranging from $838.71 to $839.47. 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. F22 These Ordinary Shares were sold in multiple trades at prices ranging from $839.72 to $840.44. 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. F23 These Ordinary Shares were sold in multiple trades at prices ranging from $840.76 to $841.60. 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. F24 These Ordinary Shares were sold in multiple trades at prices ranging from $842.02 to $842.52. 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. F25 These Ordinary Shares were sold in multiple trades at prices ranging from $843.41 to $843.95. 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. F26 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2023 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F27 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 11, 2024 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F28 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One- quarter shall vest on September 9, 2025 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F29 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter vested on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	13,475A	101.34	Direct	Form 4 ↗0001137789-26-000240
2026-09-11Filed 2026-09-15	Romano GianlucaOfficer · EVP & CFO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 All option exercises and sales of Ordinary Shares 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 $818.88 to $819.71. 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 $819.95 to $820.93. 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 $820.96 to $821.94. 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. F5 These Ordinary Shares were sold in multiple trades at prices ranging from $822.05 to $823.03. 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. F6 These Ordinary Shares were sold in multiple trades at prices ranging from $823.12 to $824.10. 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. F7 These Ordinary Shares were sold in multiple trades at prices ranging from $824.14 to $825.13. 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. F8 These Ordinary Shares were sold in multiple trades at prices ranging from $825.14 to $826.13. 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. F9 These Ordinary Shares were sold in multiple trades at prices ranging from $826.14 to $827.10. 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. F10 These Ordinary Shares were sold in multiple trades at prices ranging from $827.17 to $828.10. 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. F11 These Ordinary Shares were sold in multiple trades at prices ranging from $828.23 to $829.22. 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. F12 These Ordinary Shares were sold in multiple trades at prices ranging from $829.24 to $830.23. 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. F13 These Ordinary Shares were sold in multiple trades at prices ranging from $830.24 to $831.23. 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. F14 These Ordinary Shares were sold in multiple trades at prices ranging from $831.24 to $832.23. 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. F15 These Ordinary Shares were sold in multiple trades at prices ranging from $832.24 to $833.23. 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. F16 These Ordinary Shares were sold in multiple trades at prices ranging from $833.25 to $834.20. 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. F17 These Ordinary Shares were sold in multiple trades at prices ranging from $834.29 to $835.28. 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. F18 These Ordinary Shares were sold in multiple trades at prices ranging from $835.29 to $836.27. 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. F19 These Ordinary Shares were sold in multiple trades at prices ranging from $836.38 to $837.35. 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. F20 These Ordinary Shares were sold in multiple trades at prices ranging from $837.58 to $838.44. 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. F21 These Ordinary Shares were sold in multiple trades at prices ranging from $838.71 to $839.47. 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. F22 These Ordinary Shares were sold in multiple trades at prices ranging from $839.72 to $840.44. 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. F23 These Ordinary Shares were sold in multiple trades at prices ranging from $840.76 to $841.60. 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. F24 These Ordinary Shares were sold in multiple trades at prices ranging from $842.02 to $842.52. 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. F25 These Ordinary Shares were sold in multiple trades at prices ranging from $843.41 to $843.95. 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. F26 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2023 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F27 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 11, 2024 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F28 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One- quarter shall vest on September 9, 2025 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F29 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter vested on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	15,067A	64.31	Direct	Form 4 ↗0001137789-26-000240
2026-09-11Filed 2026-09-15	Romano GianlucaOfficer · EVP & CFO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 All option exercises and sales of Ordinary Shares 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 $818.88 to $819.71. 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 $819.95 to $820.93. 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 $820.96 to $821.94. 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. F5 These Ordinary Shares were sold in multiple trades at prices ranging from $822.05 to $823.03. 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. F6 These Ordinary Shares were sold in multiple trades at prices ranging from $823.12 to $824.10. 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. F7 These Ordinary Shares were sold in multiple trades at prices ranging from $824.14 to $825.13. 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. F8 These Ordinary Shares were sold in multiple trades at prices ranging from $825.14 to $826.13. 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. F9 These Ordinary Shares were sold in multiple trades at prices ranging from $826.14 to $827.10. 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. F10 These Ordinary Shares were sold in multiple trades at prices ranging from $827.17 to $828.10. 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. F11 These Ordinary Shares were sold in multiple trades at prices ranging from $828.23 to $829.22. 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. F12 These Ordinary Shares were sold in multiple trades at prices ranging from $829.24 to $830.23. 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. F13 These Ordinary Shares were sold in multiple trades at prices ranging from $830.24 to $831.23. 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. F14 These Ordinary Shares were sold in multiple trades at prices ranging from $831.24 to $832.23. 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. F15 These Ordinary Shares were sold in multiple trades at prices ranging from $832.24 to $833.23. 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. F16 These Ordinary Shares were sold in multiple trades at prices ranging from $833.25 to $834.20. 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. F17 These Ordinary Shares were sold in multiple trades at prices ranging from $834.29 to $835.28. 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. F18 These Ordinary Shares were sold in multiple trades at prices ranging from $835.29 to $836.27. 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. F19 These Ordinary Shares were sold in multiple trades at prices ranging from $836.38 to $837.35. 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. F20 These Ordinary Shares were sold in multiple trades at prices ranging from $837.58 to $838.44. 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. F21 These Ordinary Shares were sold in multiple trades at prices ranging from $838.71 to $839.47. 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. F22 These Ordinary Shares were sold in multiple trades at prices ranging from $839.72 to $840.44. 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. F23 These Ordinary Shares were sold in multiple trades at prices ranging from $840.76 to $841.60. 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. F24 These Ordinary Shares were sold in multiple trades at prices ranging from $842.02 to $842.52. 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. F25 These Ordinary Shares were sold in multiple trades at prices ranging from $843.41 to $843.95. 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. F26 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2023 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F27 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 11, 2024 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F28 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One- quarter shall vest on September 9, 2025 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. F29 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter vested on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. References: F1	M Exercise / conversionOrdinary Shares · Non-derivative	8,517A	68.83	Direct	Form 4 ↗0001137789-26-000240
2026-09-11Filed 2026-09-15	MOSLEY WILLIAM DDirector · Officer · CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Represents sales made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations. F2 Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. One-quarter of the shares vested on September 11, 2024 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References: F2	M Exercise / conversionRestricted Share Unit · Derivative	3,319D	0	Direct	Form 4 ↗0001137789-26-000239
2026-09-11Filed 2026-09-15	MOSLEY WILLIAM DDirector · Officer · CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Represents sales made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations. F2 Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. One-quarter of the shares vested on September 11, 2024 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	3,319A	0	Direct	Form 4 ↗0001137789-26-000239
2026-09-10Filed 2026-09-11	Teh Ban SengOfficer · EVP & Chief Commercial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. 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 Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F3 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References: F1	S Sale (market/private)Ordinary Shares · Non-derivative	663D	860.09	Direct	Form 4 ↗0001137789-26-000225
2026-09-10Filed 2026-09-11	Morris John ChristopherOfficer · EVP & CTO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	S Sale (market/private)Ordinary Shares · Non-derivative	319.25D	862.136	Direct	Form 4 ↗0001137789-26-000224
2026-09-10Filed 2026-09-11	Morris John ChristopherOfficer · EVP & CTO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	S Sale (market/private)Ordinary Shares · Non-derivative	253D	862.125	Direct	Form 4 ↗0001137789-26-000224
2026-09-10Filed 2026-09-11	Romano GianlucaOfficer · EVP & CFO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F2 Consists of a grant of RSUs awarded to the Reporting Person under the 2022 Plan. Subject to the Reporting Person's continuous employment one-quarter vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	S Sale (market/private)Ordinary Shares · Non-derivative	825.5D	862.1339	Direct	Form 4 ↗0001137789-26-000223
2026-09-10Filed 2026-09-11	Romano GianlucaOfficer · EVP & CFO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F2 Consists of a grant of RSUs awarded to the Reporting Person under the 2022 Plan. Subject to the Reporting Person's continuous employment one-quarter vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	S Sale (market/private)Ordinary Shares · Non-derivative	522.5D	862.1332	Direct	Form 4 ↗0001137789-26-000223
2026-09-10Filed 2026-09-11	MOSLEY WILLIAM DDirector · Officer · CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	S Sale (market/private)Ordinary Shares · Non-derivative	1,315.75D	862.1351	Direct	Form 4 ↗0001137789-26-000222
2026-09-10Filed 2026-09-11	MOSLEY WILLIAM DDirector · Officer · CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	S Sale (market/private)Ordinary Shares · Non-derivative	1,533.5D	862.1337	Direct	Form 4 ↗0001137789-26-000222
2026-09-09Filed 2026-09-11	Chong Kian FattOfficer · EVP Global Operations Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References: F2	M Exercise / conversionRestricted Share Unit · Derivative	379D	0	Direct	Form 4 ↗0001137789-26-000226
2026-09-09Filed 2026-09-11	Chong Kian FattOfficer · EVP Global Operations Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References: F1	M Exercise / conversionRestricted Share Unit · Derivative	202D	0	Direct	Form 4 ↗0001137789-26-000226
2026-09-09Filed 2026-09-11	Chong Kian FattOfficer · EVP Global Operations Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	379A	0	Direct	Form 4 ↗0001137789-26-000226
2026-09-09Filed 2026-09-11	Chong Kian FattOfficer · EVP Global Operations Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	202A	0	Direct	Form 4 ↗0001137789-26-000226
2026-09-09Filed 2026-09-11	Teh Ban SengOfficer · EVP & Chief Commercial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. 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 Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F3 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References: F3	M Exercise / conversionRestricted Share Unit · Derivative	663D	0	Direct	Form 4 ↗0001137789-26-000225
2026-09-09Filed 2026-09-11	Teh Ban SengOfficer · EVP & Chief Commercial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. 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 Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F3 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References: F2	M Exercise / conversionRestricted Share Unit · Derivative	600D	0	Direct	Form 4 ↗0001137789-26-000225
2026-09-09Filed 2026-09-11	Teh Ban SengOfficer · EVP & Chief Commercial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. 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 Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F3 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	663A	0	Direct	Form 4 ↗0001137789-26-000225
2026-09-09Filed 2026-09-11	Teh Ban SengOfficer · EVP & Chief Commercial Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. 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 Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years. F3 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	600A	0	Direct	Form 4 ↗0001137789-26-000225
2026-09-09Filed 2026-09-11	Morris John ChristopherOfficer · EVP & CTO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References: F2	M Exercise / conversionRestricted Share Unit · Derivative	631D	0	Direct	Form 4 ↗0001137789-26-000224
2026-09-09Filed 2026-09-11	Morris John ChristopherOfficer · EVP & CTO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References: F1	M Exercise / conversionRestricted Share Unit · Derivative	500D	0	Direct	Form 4 ↗0001137789-26-000224
2026-09-09Filed 2026-09-11	Morris John ChristopherOfficer · EVP & CTO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	631A	0	Direct	Form 4 ↗0001137789-26-000224
2026-09-09Filed 2026-09-11	Morris John ChristopherOfficer · EVP & CTO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan"). One-quarter of the shares vested on September 9, 2023 and the remaining portion vested in equal quarterly installments over the following three years for a total vesting period of four years F2 Consists of a grant of RSUs awarded to the Reporting Person under the Plan. One-quarter of the shares vested on September 9, 2025 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years. References:	M Exercise / conversionOrdinary Shares · Non-derivative	500A	0	Direct	Form 4 ↗0001137789-26-000224

Imported instruments only. Joint owners do not multiply transactions. Amendments are separate filing rows, not additional trades. No aggregate trade totals are implied.