X0304 4 2012-03-03 0 0000077360 PENTAIR INC PNR 0001189049 HOGAN RANDALL J 5500 WAYZATA BLVD., SUITE 800 GOLDEN VALLEY MN 55416 1 1 0 0 Chairman, CEO Common Stock 2012-01-02 5 G 0 14779 0 D 34501 D Common Stock 2012-03-03 5 G 0 2808 0 D 31693 D Common Stock 2012-03-03 4 F 0 2091 38.18 D 29602 D Common Stock 2012-01-02 5 G 0 14779 0 A 282124 I By Trust Common Stock 2012-03-03 5 G 0 2808 0 A 284932 I By Trust Common Stock - Restricted Stock Units 212345 D Common Stock - Deferral Plan 16039.4 D Common Stock - ESOP 1601.6158 I By ESOP Shares surrendered to pay taxes applicable to vesting of restricted stock. End-of-period holdings reflect the vesting of restricted stock units that were previously reported. Shares of Pentair, Inc. common stock will be delivered to the reporting person in accordance with their irrevocable deferral election. 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). /s/ John K. Wilson, Attorney-in-Fact for Randall J. Hogan 2012-03-06