Seagate Technology — Director's Dealing 2010

Nov 12, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology plc (STX)
CIK: 0001137789
Period of Report: 2010-07-27

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-07-27	Ordinary Shares	A	25180	$0.00	Acquired	52680	Direct

Footnotes

F1: On July 27, 2010, the Compensation Committee of the Board of Directors of the Issuer authorized and confirmed that the performance metrics were met with respect to 21,000 of the 42,000 Performance Shares (the "2007 Shares") granted to Mr. Whitmore on September 13, 2007 and reported on Mr. Whitmore's Form 4 dated September 17, 2007. The Compensation Committee of the Board of Directors of the Issuer authorized and confirmed the performance metrics were met with respoect to 4,180 of the 8,360 Performance Shares (the "2008 Shares") granted to Mr. Whitmore on September 12, 2008 and reported on Mr. Whitmore's Form 4 dated September 16, 2008.

F2: Excludes 44,440 Performance Unit Shares and 16,000 Performance Shares previously reported on Mr. Whitmore's Form 4 dated September 13, 2010 and 25,180 of the 2007 Shares and 2008 Shares previously reported on Mr. Whitmore's Form 4 dated September 17, 2007 and September 16, 2008. The vesting of such Performance Unit Shares and Performance Shares remains subject to the achievement of performance goals that are not tied to the market price of the Company's ordinary shares. Pursuant to the Securities and Exchange Commission's interpretative guidance, these Performance Unit Shares and Performance Shares are not required to be reported on Mr. Whitmore's Section 16 filings until such performance goals have been achieved.