Seagate Technology — Director's Dealing 2023

Sep 5, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology Holdings plc (STX)
CIK: 0001137789
Period of Report: 2023-08-31

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-08-31	Ordinary Shares	M	100000	$36.09	Acquired	716309	Direct
2023-08-31	Ordinary Shares	S	5613	$69.3415	Disposed	710696	Direct
2023-08-31	Ordinary Shares	S	53990	$70.352	Disposed	656706	Direct
2023-08-31	Ordinary Shares	S	40397	$70.8137	Disposed	616309	Direct
2023-08-31	Ordinary Shares	M	100000	$30.95	Acquired	716309	Direct
2023-08-31	Ordinary Shares	S	100000	$70.0772	Disposed	616309	Direct
2023-09-01	Ordinary Shares	M	98860	$36.09	Acquired	715169	Direct
2023-09-01	Ordinary Shares	S	16607	$71.3967	Disposed	698562	Direct
2023-09-01	Ordinary Shares	S	13791	$72.2937	Disposed	684771	Direct
2023-09-01	Ordinary Shares	S	62857	$73.4483	Disposed	621914	Direct
2023-09-01	Ordinary Shares	S	5605	$74.0076	Disposed	616309	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-08-31	NQ Options	$36.09	M	100000	Disposed	2023-09-09	Ordinary Shares (100000.0)	Direct
2023-08-31	NQ Options	$30.95	M	100000	Disposed	2024-09-11	Ordinary Shares (100000.0)	Direct
2023-09-01	NQ Options	$36.09	M	98860	Disposed	2023-09-09	Ordinary Shares (98860.0)	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: Includes 314 Ordinary Shares purchased by Reporting Person on January 31, 2023 under the Issuer's Employee Stock Purchase Plan. Such acquisition is exempt from reporting pursuant to Rule 16b-3 under theSecurities Exchange Act of 1934.

F3: This number reflects the deduction of two shares due to an accounting error.

F4: These Ordinary Shares were sold in multiple trades at prices ranging from $68.70 to $69.69. 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: These Ordinary Shares were sold in multiple trades at prices ranging from $69.70 to $70.70. 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.

F6: These Ordinary Shares were sold in multiple trades at prices ranging from $70.70 to $70.94. 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.

F7: These Ordinary Shares were sold in multiple trades at prices ranging from $70.00 to $70.39. 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.

F8: These Ordinary Shares were sold in multiple trades at prices ranging from $70.77 to $71.76. 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.

F9: These Ordinary Shares were sold in multiple trades at prices ranging from $71.77 to $72.73. 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.

F10: These Ordinary Shares were sold in multiple trades at prices ranging from $72.80 to $73.79. 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.

F11: These Ordinary Shares were sold in multiple trades at prices ranging from $73.81 to $74.40. 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.

F12: Options granted to the Reporting Person under the Issuer's 2012 Equity Incentive Plan are subject to a four-year vesting schedule. One quarter of the options vested on September 11, 2018, the remaining options vested in equal monthly installments over the 36 months following September 11, 2018.

F13: Options granted to the Reporting Person under the Issuer's 2012 Equity Incentive Plan are subject to a four-year vesting schedule. One quarter of the options vested on September 9, 2017, the remaining options vested in equal monthly installments over the 36 months following September 9, 2017.