Seagate Technology — Director's Dealing 2012

Sep 17, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology plc (STX)
CIK: 0001137789
Period of Report: 2012-09-13

Reporting Person: MOSLEY WILLIAM D (EVP, Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-09-13	Ordinary Shares	S	14625	$30.0593	Disposed	20956.5977	Direct
2012-09-14	Ordinary Shares	S	5500	$30.0312	Disposed	15456.5977	Direct

Footnotes

F1: Shares sold under a 10b5-1 Trading Plan and include shares sold to pay tax liabilities resulting from the vesting of 14,625 performance stock unit shares awarded on September 12, 2011. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at sales prices ranging between $30.02 and $30.12. 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.

F2: Shares sold under a 10b5-1 Trading Plan and include shares sold to pay tax liabilities resulting from the vesting of 5,500 performance stock shares awarded on September 13, 2010. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at sales prices ranging between $30.0025 and $30.0564. 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.