X0306 4/A 2014-01-02 2014-01-06 0 0000077360 PENTAIR LTD PNR 0001197608 GLENN T MICHAEL 5500 WAYZATA BLVD., SUITE 800 GOLDEN VALLEY MN 55416 1 0 0 0 Common Shares - Restricted Stock Units 2014-01-02 4 F 0 257 76.87 D 0 D Common Shares - Restricted Stock Units 2014-01-02 4 A 0 676 0 A 676 D Common Shares 11323 D The Form 4 filed on January 6, 2014 reflected the vesting of 1,027 restricted stock units that were previously reported. This amended Form 4 is being filed to reflect the vesting of 770 restricted stock units that were previously reported and the surrender of 257 vesting restricted stock units to pay taxes applicable to the vesting of the restricted stock units. End-of-period holdings reflect the vesting of restricted stock units that were previously reported. Restricted stock units granted pursuant to and subject to a vesting condition of the Pentair Ltd. 2012 Stock and Incentive Plan. Each restricted stock unit represents a right to receive one share of Pentair Ltd. common shares upon vesting. /s/ John K. Wilson, Attorney-in-Fact for T. Michael Glenn 2014-01-08