Seagate Technology — Director's Dealing 2011

Oct 28, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology plc (STX)
CIK: 0001137789
Period of Report: 2011-10-26

Reporting Person: REYES GREGORIO (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-10-26	Ordinary Shares - Restricted Share Units	A	15718	$0.0000	Acquired	39916	Direct
2011-10-28	Ordinary Shares	M	25000	$12.62	Acquired	64916	Direct
2011-10-28	Ordinary Shares	S	25000	$16.1239	Disposed	39916	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-10-28	NQ Stock Options	$12.62	M	25000	Disposed	2011-10-29	Ordinary Shares (25000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares	11040	Indirect

Footnotes

F1: Consists of a grant of restricted share units awarded to the Reporting Person under the Seagate Technology plc 2012 Equity Incentive Plan for no consideration. Each restricted share unit represents a contingent right to receive one ordinary share of the company. Subject to the Reporting Person's continuous service with the company, shares will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) one day prior to the next annual general meeting of the shareholders following the end of fiscal year 2012.

F2: Shares were sold under a 10b5-1 Trading Plan adopted by the Reporting Person on August 2, 2011.

F3: Options granted to the Reporting Person under the Issuer's 2001 Share Option Plan are subject to a four-year vesting schedule. One quarter of the shares vested on October 29, 2005. The remaining shares vested proportionally each month over the 36 months following October 29, 2005.