Seagate Technology — Director's Dealing 2021

May 5, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology plc (STX)
CIK: 0001137789
Period of Report: 2021-05-03

Reporting Person: Romano Gianluca (EVP & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-03	Ordinary Shares	M	62380	$45.89	Acquired	73706	Direct
2021-05-03	Ordinary Shares	M	16978	$54.78	Acquired	90684	Direct
2021-05-03	Ordinary Shares	S	34208	$91.3138	Disposed	56476	Direct
2021-05-03	Ordinary Shares	S	38647	$92.3999	Disposed	17829	Direct
2021-05-03	Ordinary Shares	S	6503	$93.5343	Disposed	11326	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-03	NQ Options	$45.89	M	62380	Disposed	2026-02-20	Ordinary Shares (62380.0)	Direct
2021-05-03	NQ Stock Option Grant	$54.78	M	16978	Disposed	2026-09-09	Ordinary Shares (16978.0)	Direct

Footnotes

F1: The option exercises and sales of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2: These Ordinary Shares were sold in multiple trades at prices ranging from $90.97 to $91.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F3: These Ordinary Shares were sold in multiple trades at prices ranging from $91.99 to $92.97. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F4: These Ordinary Shares were sold in multiple trades at prices ranging from $93.03 to $94.00. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F5: Options granted to the Reporting Person under the Seagate Technology plc 2012 Equity Incentive Plan (the "Plan") are subject to a four-year vesting schedule. Subject to continuous employment, one quarter of the options vested on February 20, 2020. The remaining options vest in equal monthly installments over the 36 months following February 20, 2020.

F6: Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to continuous employment, one quarter of the options vested on September 9, 2020. The remaining options vest in equal monthly installments over the 36 months following September 9, 2020.