Seagate Technology — Director's Dealing 2012

Apr 27, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology plc (STX)
CIK: 0001137789
Period of Report: 2012-04-25

Reporting Person: MOSLEY WILLIAM D (EVP, Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-04-25	Ordinary Shares	M	125000	$25.48	Acquired	139974.5977	Direct
2012-04-25	Ordinary Shares	S	125000	$29.95	Disposed	14974.5977	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-04-25	NQ Stock Options	$25.48	M	125000	Disposed	2013-04-27	Ordinary (125000)	Direct

Footnotes

F1: Shares were sold under a 10b5-1 Trading Plan adopted by the Reporting Person on February 13, 2012.

F2: Options granted the Reporting Person under the Issuer's 2004 Stock Compensation Plan are subject to the following vesting schedule. One half of the option shares vested on April 27, 2010. The remaining shares vested on April 27, 2011.