Seagate Technology — Director's Dealing 2021

Sep 14, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology Holdings plc (STX)
CIK: 0001137789
Period of Report: 2021-09-09

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-09-09	Ordinary Shares	F	6449	$87.34	Disposed	544164	Direct
2021-09-09	Ordinary Shares	F	7767	$87.34	Disposed	536397	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-09-09	Restricted Share Unit	$	A	36025	Acquired		Ordinary Shares (36025.0)	Direct
2021-09-09	NQ Options	$87.34	A	96080	Acquired		Ordinary Shares (96080.0)	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 Amended and Restated Seagate Technology Holdings plc 2012 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: 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 9, 2022 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2022.