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: MOSLEY WILLIAM D (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-09-09	Ordinary Shares	M	9006	—	Acquired	625315	Direct
2023-09-09	Ordinary Shares	F	4466	$65.37	Disposed	620849	Direct
2023-09-09	Ordinary Shares	M	10540	—	Acquired	631389	Direct
2023-09-09	Ordinary Shares	F	5226	$65.37	Disposed	626163	Direct
2023-09-09	Ordinary Shares	M	11257	—	Acquired	637420	Direct
2023-09-09	Ordinary Shares	F	5582	$65.37	Disposed	631838	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-09-09	Restricted Share Unit	$	M	9006	Disposed		Ordinary Shares (9006.0)	Direct
2023-09-09	Restricted Share Unit	$	M	10540	Disposed		Ordinary Shares (10540.0)	Direct
2023-09-09	Restricted Share Unit	$	M	11257	Disposed		Ordinary Shares (11257.0)	Direct
2023-09-11	Restricted Share Unit	$0.0	A	53100	Acquired		Ordinary Shares (53100.0)	Direct
2023-09-11	NQ Options	$64.31	A	141600	Acquired		Ordinary Shares (141600.0)	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 "Plan"). 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.

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 vest in full on September 9, 2023.

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 vest as to one-quarter of the shares on September 9, 2023 and then in equal quarterly installments thereafter.

F6: 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 11, 2024 and then in equal quarterly installments thereafter.

F7: Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter of the options will vest on September 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024.