X0306 4 2012-10-16 0 0000077360 PENTAIR LTD PNR 0001197608 GLENN T MICHAEL 5500 WAYZATA BLVD., SUITE 800 GOLDEN VALLEY MN 55416 1 0 0 0 Common Shares 2012-10-16 4 M 0 6279 A 10553 D Phantom Stock Units (Deferred Compensation) 2012-10-16 4 M 0 6279.327 D Common Shares 6279.327 932.333 I Plan Agent Fractional shares were sold upon the settlement of units. Phantom stock units convert into common shares on a one-for-one basis. Includes 1,338 shares that were distributed in settlement of deferred share units. Represents phantom stock units credited under a deferred compensation plan for non-employee directors over which the reporting person has no current dispositive or voting power. A portion of the phantom stock units were settled in Pentair common shares on October 16, 2012. Settlement of the remaining phantom stock units will be in Pentair common shares in accordance with reporting person's irrevocable election. /s/ John K. Wilson, Attorney-in-Fact for T. Michael Glenn 2012-10-18