3M CO | 2013 | FY | 3


Restricted Stock and Restricted Stock Units
                   
The following table summarizes restricted stock and restricted stock unit activity for the years ended December 31:
                   
     2013 2012 2011
       Weighted Average   Weighted Average   Weighted Average
     Number of Grant Date Number of Grant Date Number of Grant Date
     AwardsFair ValueAwardsFair Value AwardsFair Value
Nonvested balance —               
 As of January 1   3,261,562 $ 85.17  4,858,972 $ 73.02  4,812,657 $ 68.75
  Granted                
   Annual  946,774   101.57  968,522   87.92  889,448   89.46
   Other  44,401   111.19  99,337   85.07  351,624   87.07
  Vested  (1,100,095)   79.93  (2,594,468)   63.51  (1,077,816)   72.21
  Forfeited   (47,281)   90.82  (70,801)   82.65  (116,941)   72.01
 As of December 31   3,105,361 $ 92.31  3,261,562 $ 85.17  4,858,972 $ 73.02

us-gaap:ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock