Seagate Technology — Director's Dealing 2026

Feb 23, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology Holdings plc (STX)
CIK: 0001137789
Period of Report: 2026-02-20

Reporting Person: Morris John Christopher (EVP & CTO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-20	Ordinary Shares	M	4427	—	Acquired	18838	Direct
2026-02-20	Ordinary Shares	F	2032	$411.11	Disposed	16806	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-20	Performance-Based Restricted Share Units	$0	M	4427	Disposed		Ordinary Shares (4427)	Direct

Footnotes

F1: Includes 161 Ordinary Shares purchased by Reporting Person on January 31, 2026 under the Issuer's Employee Stock Purchase Plan. Such acquisition is exempt from reporting pursuant to Rule 16b-3 under the Securities Exchange Act of 1934.

F2: On January 24, 2026 the Compensation and People Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to the 4,427 Performance
Share Units granted on February 20, 2024. The 4,427 Ordinary Shares vested on February 20, 2026.