Seagate Technology — Director's Dealing 2024

Sep 11, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology Holdings plc (STX)
CIK: 0001137789
Period of Report: 2024-07-20

Reporting Person: MOSLEY WILLIAM D (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-09-09	Ordinary Shares	M	13006	—	Acquired	647276	Direct
2024-09-09	Ordinary Shares	F	6572	$101.34	Disposed	640704	Direct
2024-09-09	Ordinary Shares	M	31330	—	Acquired	672034	Direct
2024-09-09	Ordinary Shares	F	15832	$101.34	Disposed	656202	Direct
2024-09-09	Ordinary Shares	M	9006	—	Acquired	665208	Direct
2024-09-09	Ordinary Shares	F	4551	$101.34	Disposed	660657	Direct
2024-09-09	Ordinary Shares	M	2814	—	Acquired	663471	Direct
2024-09-09	Ordinary Shares	F	1422	$101.34	Disposed	662049	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-07-20	Performance-Based Restricted Share Units	$0	A	13006	Acquired		Ordinary Shares (13006)	Direct
2024-07-20	Performance-Based Restricted Share Units	$0	A	31330	Acquired		Ordinary Shares (31330)	Direct
2024-09-09	Performance-Based Restricted Share Units	$0	M	13006	Disposed		Ordinary Shares (13006)	Direct
2024-09-09	Performance-Based Restricted Share Units	$0	M	31330	Disposed		Ordinary Shares (31330)	Direct
2024-09-09	Restricted Share Unit	$0	M	9006	Disposed		Ordinary Shares (9006)	Direct
2024-09-09	Restricted Share Unit	$0	M	2814	Disposed		Ordinary Shares (2814)	Direct
2024-09-09	NQ Options	$101.34	A	103060	Acquired	2031-09-09	Ordinary Shares (103060)	Direct
2024-09-09	Restricted Share Unit	$0	A	38650	Acquired		Ordinary Shares (38650)	Direct
2024-09-09	Restricted Share Unit	$0	A	4550	Acquired		Ordinary Shares (4550)	Direct

Footnotes

F1: These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of restricted share units previously reported on one or more Forms 4 by the Reporting Person in accordance with Rule 16b-3.

F2: On July 20, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 13,006 of the 52,027 Threshold Performance Share Units granted to Mr. Mosley on September 9, 2019. The 13,006 Ordinary Shares vested on September 9, 2024.

F3: On July 20, 2024, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 31,330 of the 62,660 Threshold Performance Share Units granted to Mr. Mosley on September 9, 2020. The 31,330 Ordinary Shares vested on September 9, 2024.

F4: Consists of a grant of RSUs awarded to the Reporting Person subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on September 9, 2022 and each one year anniversary thereafter.

F5: Consists of a grant of RSUs awarded to the Reporting Person subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on September 9, 2023 and then in equal quarterly installments thereafter.

F6: Options granted to the Reporting Person are subject to a four-year vesting schedule. Subject to continuous employment, one-quarter shall vest on September 9, 2025 and then in equal quarterly installments thereafter.

F7: Consists of a grant of RSUs awarded to the Reporting Person subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter shall vest starting on September 9, 2025 and then in equal quarterly installments thereafter.

F8: Consists of a grant of RSUs awarded to the Reporting Person. Subject to the Reporting Person's continuous employment, 100% shall vest on September 9, 2025.