Seagate Technology — Director's Dealing 2023

Sep 13, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology Holdings plc (STX)
CIK: 0001137789
Period of Report: 2023-09-09

Reporting Person: Morris John Christopher (SVP, HDD & SDD Products & CTO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-09-09	Ordinary Shares	M	2503	—	Acquired	19828	Direct
2023-09-09	Ordinary Shares	F	766	$65.37	Disposed	19062	Direct
2023-09-09	Ordinary Shares	M	3848	—	Acquired	22910	Direct
2023-09-09	Ordinary Shares	F	1178	$65.37	Disposed	21732	Direct
2023-09-09	Ordinary Shares	M	1885	—	Acquired	23617	Direct
2023-09-09	Ordinary Shares	F	577	$65.37	Disposed	23040	Direct
2023-09-09	Ordinary Shares	M	2040	—	Acquired	25080	Direct
2023-09-09	Ordinary Shares	F	625	$65.37	Disposed	24455	Direct
2023-09-09	Ordinary Shares	M	1996	—	Acquired	26451	Direct
2023-09-09	Ordinary Shares	F	647	$65.37	Disposed	25804	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-09-09	Restricted Share Unit	$	M	2503	Disposed		Ordinary Shares (2503.0)	Direct
2023-09-09	Restricted Share Unit	$	M	3848	Disposed		Ordinary Shares (3848.0)	Direct
2023-09-09	Restricted Share Unit	$	M	1885	Disposed		Ordinary Shares (1885.0)	Direct
2023-09-09	Restricted Share Unit	$	M	2040	Disposed		Ordinary Shares (2040.0)	Direct
2023-09-09	Restricted Share Unit	$	M	1996	Disposed		Ordinary Shares (1996.0)	Direct
2023-09-11	Restricted Share Unit	$0.0	A	15065	Acquired		Ordinary Shares (15065.0)	Direct

Footnotes

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

F2: Each restricted share unit ("RSU") represents a contingent right to receive one Ordinary Share of the Issuer.

F3: Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology plc 2022 Equity Incentive Plan (the "2022 Plan"). Subject to the Reporting Person's continuous employment, such RSUs vested as to one-quarter of the shares starting on September 9, 2020 and each one-year anniversary thereafter.

F4: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, such RSUs vested as to one-quarter of the shares starting on September 9, 2021 and each one-year anniversary thereafter.

F5: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, such RSUs vested as to one-quarter of the shares starting on September 9, 2022 and each one-year anniversary thereafter.

F6: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs will vest on the first anniversary of the grant date, September 9, 2023.

F7: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. 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.

F8: Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, such RSUsvest as to one-quarter of the shares on September 11, 2024 and then in equal quarterly installments thereafter.