Seagate Technology — Director's Dealing 2012

Nov 6, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology plc (STX)
CIK: 0001137789
Period of Report: 2012-11-02

Reporting Person: Whitmore Robert W (EVP & Chief Technical Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-11-02	Ordinary Shares	M	50000	$4.045	Acquired	126419	Direct
2012-11-02	Ordinary Shares	S	50000	$28.0000	Disposed	76419	Direct
2012-11-05	Ordinary Shares	S	13055	$28.8148	Disposed	63364	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-11-02	NQ Stock Options	$4.045	M	50000	Disposed	2016-01-30	Ordinary Shares (50000)	Direct

Footnotes

F1: Shares were sold to cover the tax liabilities resulting from the vesting on November 2, 2012 of 14,625 performance unit shares which were awarded on September 12, 2011.

F2: The price reported in Column 4 is a weighted average price. Shares were sold in multiple transactions at sales prices ranging from $28.81 to $28.82, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3: 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 January 12, 2010. The remaining option shares vest proportionally each month over the 36 months following January 12, 2010.