Seagate Technology — Director's Dealing 2013

Feb 14, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Seagate Technology plc (STX)
CIK: 0001137789
Period of Report: 2012-02-12

Reporting Person: DEHAAN DOUGLAS J (General Manager, Samsung HDD)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-12	Ordinary Shares	M	33333	$3.345	Acquired	61369	Direct
2013-02-12	Ordinary Shares	M	2656	$11.065	Acquired	64025	Direct
2013-02-12	Ordinary Shares	M	5284	$11.155	Acquired	69309	Direct
2013-02-12	Ordinary Shares	S	41273	$35.0006	Disposed	28036	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-12	NQ Stock Options	$3.345	M	33333	Disposed	2016-03-06	Ordinary Shares (33333)	Direct
2012-02-12	NQ Stock Options	$11.065	M	2656	Disposed	2017-09-13	Ordinary Shares (2656)	Direct
2012-02-12	NQ Stock Options	$11.155	M	5284	Disposed	2018-09-12	Ordinary Shares (5284)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares	1018	Indirect
Ordinary Shares	1018	Indirect

Footnotes

F1: Includes the cash out of 0.628 shares pursuant to the Issuer's Employee Stock Purchase Plan.

F2: The price reported in Column 4 is a weighted average price. Shares were sold in multiple transactions at sales prices ranging from $35.00 to $35.015, 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 and a half year vesting schedule. One quarter of the shares vested on September 11, 2010. Following continuous employment, the remaining options vest in equal monthly installments over the 36 months following September 11, 2010.

F4: 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 September 13, 2011. The remaining options vest in equal monthly installments over the 36 months following September 13, 2011.

F5: 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 shares vested on September 12, 2012. The remaining options vest in equal monthly installments over the 36 months following September 12, 2012.