PENTAIR plc — Director's Dealing 2009

Aug 28, 2009

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2009-08-27

Reporting Person: AINSWORTH LOUIS L (Sr. Vice President, Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2009-08-27	Common Stock	M	3410	$18.1485	Acquired	146287.446	Direct
2009-08-27	Common Stock	M	6988	$16.2735	Acquired	153275.446	Direct
2009-08-27	Common Stock	M	1254	$21.765	Acquired	154529.446	Direct
2009-08-27	Common Stock	M	1272	$27.485	Acquired	155801.446	Direct
2009-08-27	Common Stock	F	9386	$28.72	Disposed	146415.446	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2009-08-27	Employee Stock Option (right to buy)	$18.1485	M	3410	Disposed	2012-01-02	Common Stock (3410)	Direct
2009-08-27	Employee Stock Option (right to buy)	$16.2735	M	6988	Disposed	2011-01-02	Common Stock (6988)	Direct
2009-08-27	Employee Stock Option (right to buy)	$21.765	M	1254	Disposed	2011-01-02	Common Stock (1254)	Direct
2009-08-27	Employee Stock Option (right to buy)	$27.485	M	1272	Disposed	2011-01-02	Common Stock (1272)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3894.263	Indirect
Common Stock - ESOP	2040.3152	Indirect

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).