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Seagate Technology Director's Dealing 2025

Sep 16, 2025

9954_dirs_2025-09-15_eaff315e-532d-4c88-8ee1-7c16c3d1ca20.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology Holdings plc (STX)
CIK: 0001137789
Period of Report: 2025-09-11

Reporting Person: Morris John Christopher (EVP & CTO)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2025-09-11 Ordinary Shares M 941 Acquired 25620 Direct
2025-09-11 Ordinary Shares F 430 $196.81 Disposed 25190 Direct
2025-09-12 Ordinary Shares S 1812 $193.9237 Disposed 23378 Direct
2025-09-12 Ordinary Shares S 4200 $194.9369 Disposed 19178 Direct
2025-09-12 Ordinary Shares S 5081 $195.9627 Disposed 14097 Direct
2025-09-12 Ordinary Shares S 2954 $196.999 Disposed 11143 Direct
2025-09-12 Ordinary Shares S 1300 $197.8492 Disposed 9843 Direct
2025-09-14 Ordinary Shares M 6935 Acquired 16778 Direct
2025-09-14 Ordinary Shares F 3163 $195.99 Disposed 13615 Direct

Derivative Transactions

Date Security Exercise Price Code Shares A/D Expiration Underlying Ownership
2025-09-11 Restricted Share Unit $0 M 941 Disposed Ordinary Shares (941) Direct
2025-09-14 Performance-Based Restricted Share Units $0 A 6935 Acquired Ordinary Shares (6935) Direct
2025-09-14 Performance-Based Restricted Share Units $0 M 6935 Disposed Ordinary Shares (6935) Direct

Footnotes

F1: All sales of Ordinary Shares reported herein were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 1, 2025.

F2: These Ordinary Shares were sold in multiple trades at prices ranging from $193.33 to $194.28. 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.

F3: These Ordinary Shares were sold in multiple trades at prices ranging from $194.40 to $195.38. 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 $195.42 to $196.41. 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 $196.44 to $197.33. 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 $197.54 to $198.22. 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.

F7: Consists of a grant of restricted share units awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.

F8: On September 14, 2025, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 6,935 of the 7,985 Performance Share Units granted on September 9, 2022. The 6,935 Ordinary Shares vested on September 14, 2025.