PENTAIR plc — Director's Dealing 2010

Jan 7, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2010-01-04

Reporting Person: Meyer Michael G (Vice President, Treasury/Tax)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-01-04	Common Stock - Restricted Stock Units	A	4056	$0.00	Acquired	7256	Direct
2010-01-04	Common Stock	F	835	$33.38	Disposed	32356	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-01-04	Employee Stock Option (right to buy)	$33.38	A	18064	Acquired	2020-01-04	Common Stock (18064)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1978.869	Indirect
Common Stock - ESOP	10031.1302	Indirect
Common Stock - ESPP	745.23	Direct

Footnotes

F1: Restricted stock units granted pursuant to and subject to a vesting condition of the Pentair, Inc. 2008 Omnibus Stock Incentive Plan, as Amended. Each restricted stock unit represents a right to receive one share of Pentair, Inc. common stock upon vesting.

F2: Shares surrendered to pay taxes applicable to vesting of restricted stock.

F3: 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).

F4: End-of-period holdings include monthly purchase(s), since the reporting person's last filed Form, under the Pentair, Inc. Employee Stock Purchase and Bonus Plan (ESPP) in exempt transaction(s) pursuant to Rule 16b-3(c); and shares acquired pursuant to a dividend reinvestment feature of the ESPP.

F5: Employee stock option granted under the Pentair, Inc. 2008 Omnibus Stock Incentive Plan, as Amended.

F6: One-third of the stock options become exercisable on the first, second, and third anniversary of the grant.