Merck & Co. Inc. | 2013 | FY | 3

A summary of nonvested RSU and PSU activity (shares in thousands) is as follows:
 
 
RSUs
 
PSUs
  
 
Number
of Shares
 
Weighted
Average
Grant Date
Fair Value
 
Number
of Shares
 
Weighted
Average
Grant Date
Fair Value
Nonvested January 1, 2013
 
22,743

 
$
36.38

 
1,648

 
$
33.78

Granted
 
6,394

 
45.04

 
963

 
38.25

Vested
 
(8,705
)
 
34.10

 
(839
)
 
34.17

Forfeited
 
(1,298
)
 
40.02

 
(99
)
 
36.71

Nonvested December 31, 2013
 
19,134

 
$
40.07

 
1,673

 
$
35.98

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