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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1137789	Seagate Technology Plc	STX	Computer Storage Devices (3572)	980648577

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1720273	D. Jeffrey Nygaard	Seagate Technology Plc 47488 Kato Road Fremont CA 94538	Executive Vice President	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Ordinary Shares	Acquisiton	2020-12-16	10,000	$39.85	10,000	No	4	M	Direct
Ordinary Shares	Disposition	2020-12-16	10,000	$66.00	0	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Ordinary Shares	NQ Stock Option	Disposition	2020-12-16	10,000	$0.00	10,000	$39.85

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
61,810	2018-11-20	2024-11-20	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Ordinary Shares	76,875	Indirect	Jeffrey D. Nygaard Revocable Trust U/A Dated August 17, 2009

Footnotes

This amendment is being filed to correct errors regarding 1) the Transaction Date of Ordinary Shares reported as acquired upon the exercise of options and 2) the Transaction Code for the sale of Ordinary Shares in the original Form 4.
The option exercise and sale of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
On December 14, 2020, the Reporting Person transferred 21,644 Ordinary Shares previously owned directly to the Jeffrey D. Nygaard Revocable Trust U/A Dated August 17, 2009.
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. One quarter of the options vested on November 20, 2018. Subject to the Reporting Person's continuous employment, the remaining options vest in equal monthly installments over the 36 months following November 20, 2018.