PENTAIR plc — Director's Dealing 2011

May 27, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2011-05-26

Reporting Person: KOURY FREDERICK S (Sr. Vice President, HR)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-26	Common Stock	M	7304	$20.535	Acquired	41506.77	Direct
2011-05-26	Common Stock	M	15000	$22.88	Acquired	56506.77	Direct
2011-05-26	Common Stock	S	22304	$39.40	Disposed	34202.77	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-26	Employee Stock Option (right to buy)	$20.535	M	7304	Disposed	2013-09-09	Common Stock (7304)	Direct
2011-05-26	Employee Stock Option (right to buy)	$22.88	M	15000	Disposed	2014-01-02	Common Stock (15000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock - ESOP	522.2505	Indirect
Common Stock - ESPP	1328.646	Direct

Footnotes

F1: End-of-period holdings include shares acquired under a dividend reinvestment plan in exempt transaction not required to be reported pursuant to Section 16(a).

F2: End-of-period holdings include ESOP allocation and shares acquired under a dividend reinvestment plan in exempt transactions not required to be reported pursuant to Section 16(a).