Seagate Technology — Director's Dealing 2012

Aug 16, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology plc (STX)
CIK: 0001137789
Period of Report: 2012-08-14

Reporting Person: MARSHALL LYDIA MICHEAUX (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-08-14	Ordinary Shares	M	9374	$6.525	Acquired	53540	Direct
2012-08-14	Ordinary Shares	S	6100	$34.20	Disposed	47440	Direct
2012-08-14	Ordinary Shares	S	2774	$34.2024	Disposed	44666	Direct
2012-08-14	Ordinary Shares	S	500	$34.21	Disposed	44166	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-08-14	NQ Stock Options	$6.525	M	9374	Disposed	2015-10-30	Ordinary Shares (9374)	Direct

Footnotes

F1: Options granted to the Reporting Person under the Issuer's 2004 Stock Compensation Plan are subject to a four-year vesting schedule. One-quarter of the option shares vested on October 15, 2009. The remaining option shares vested proportionally monthly over the 36 months following October 15, 2009.