3M CO | 2013 | FY | 3


Stock Option Program
 
The following table summarizes stock option activity for the years ended December 31:
    2013 2012 2011
    Number of Options Weighted Average Exercise Price Number of Options Weighted Average Exercise Price Number of Options Weighted Average Exercise Price
            
            
          
Under option —               
 January 1   56,565,030 $ 80.33  64,148,415 $ 77.28  70,335,044 $ 74.80
 Granted:               
  Annual   6,220,810   101.55  5,770,190   87.91  5,514,500   89.46
  Progressive (Reload)   140,447   109.83  110,065   89.65  237,839   94.02
  Other   191   119.62  51,661   89.25  8,953   86.71
 Exercised   (18,825,218)   79.25  (13,123,617)   68.78  (11,625,863)   68.47
 Canceled   (162,482)   89.92  (391,684)   83.65  (322,058)   75.09
 December 31 43,938,778 $ 83.84 56,565,030 $ 80.33 64,148,415 $ 77.28
Options exercisable                
 December 31 32,038,228 $ 79.58 45,207,143 $ 78.78  52,644,364 $ 76.90

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