X0303 4 2011-01-03 0 0000077360 PENTAIR INC PNR 0001346838 Abi-Karam Leslie 5500 WAYZATA BLVD. SUITE 800 GOLDEN VALLEY MN 55416 1 0 0 0 Common Stock - Restricted Stock Units 2011-01-03 4 A 0 1164 0.00 A 2084 D Common Stock 459 D Nonqualified Stock Option (right to buy) 36.98 2011-01-03 4 A 0 4242 0.00 A 2012-01-03 2021-01-03 Common Stock 4242 4242 D Restricted stock units granted pursuant to and subject to a vesting condition of the Pentair, Inc. 2008 Omnibus Stock Incentive Plan, as Amended and Restated. Each restricted stock unit represents a right to receive one share of Pentair, Inc. common stock upon vesting. End-of-period holdings reflect the vesting of restricted stock units that were previously reported. Nonqualified stock option granted under the Pentair, Inc. 2008 Omnibus Stock Incentive Plan, as Amended and Restated. One-third of the stock options become exercisable on the first, second, and third anniversary of the grant. s/ Angela D. Lageson, Attorney-in-Fact 2011-01-05