| Insider |  Price |  Amount |  Total Value |  Remaining Holdings |  Date |  Form 4 |  
   |    Officer, Director   |  $52.51 |  921 |  $48,361.53 |  905,754 |  2013-05-21 |  Filing |  
  |    Officer, Director   |  $51.86 |  1,079 |  $55,952.19 |  906,675 |  2013-05-21 |  Filing |  
  |    Officer   |  $51.20 |  5,100 |  $261,120.00 |  12,904 |  2013-05-16 |  Filing |  
  |    Officer   |  $51.50 |  1,158 |  $59,637.00 |  32,214 |  2013-05-17 |  Filing |  
  |    Officer   |  $51.53 |  2,842 |  $146,449.40 |  32,214 |  2013-05-16 |  Filing |  
  |    Director   |  $50.54 |  2,000 |  $101,073.60 |  9,840 |  2013-05-15 |  Filing |  
  |    Director   |  $49.92 |  2,000 |  $99,839.20 |  9,840 |  2013-05-14 |  Filing |  
  |    Officer, Director   |  $50.54 |  2,000 |  $101,073.60 |  907,754 |  2013-05-15 |  Filing |  
  |    Officer, Director   |  $49.92 |  2,000 |  $99,839.20 |  909,754 |  2013-05-14 |  Filing |  
  |    Officer   |  $51.00 |  400 |  $20,400.08 |  12,904 |  2013-05-10 |  Filing |  
  |    Officer   |  $50.00 |  3,299 |  $164,950.00 |  21,721 |  2013-05-14 |  Filing |  
  |    Officer   |  $50.07 |  1,115 |  $55,832.40 |  25,020 |  2013-05-10 |  Filing |  
  |    Officer   |  $50.14 |  6,219 |  $311,820.66 |  26,135 |  2013-05-10 |  Filing |  
  |    Director   |  $48.86 |  2,000 |  $97,723.80 |  9,840 |  2013-05-08 |  Filing |  
  |    Director   |  $48.81 |  2,000 |  $97,628.00 |  9,840 |  2013-05-07 |  Filing |  
  |    Officer, Director   |  $48.86 |  2,000 |  $97,723.80 |  911,754 |  2013-05-08 |  Filing |  
  |    Officer, Director   |  $48.81 |  2,000 |  $97,628.00 |  913,754 |  2013-05-07 |  Filing |  
  |    Officer, Director   |  $49.00 |  10,965 |  $537,285.00 |  193,602 |  2013-05-08 |  Filing |  
  |    Officer, Director   |  $49.09 |  723 |  $35,488.67 |  204,567 |  2013-05-08 |  Filing |  
  |    Officer, Director   |  $49.06 |  312 |  $15,306.72 |  205,290 |  2013-05-07 |  Filing |