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


Summarized information relative to stock option plan activity (options in thousands) is as follows:
 
Number
of Options
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Term (Years)
 
Aggregate
Intrinsic
Value
Outstanding January 1, 2013
165,941

 
$
39.46

 
 
 
 
Granted
5,703

 
45.01

 
 
 
 
Exercised
(33,278
)
 
36.37

 
 
 
 
Forfeited
(22,561
)
 
49.01

 
 
 
 
Outstanding December 31, 2013
115,805

 
$
38.75

 
3.79
 
$
1,320

Exercisable December 31, 2013
101,600

 
$
38.48

 
3.25
 
$
1,187


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