1. Title of Derivative Security (Instr. 4) |
2. Date Exercisable and Expiration Date (Month/Day/Year) |
3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) |
4. Conversion or Exercise Price of Derivative Security |
5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5) |
6. Nature of Indirect Beneficial Ownership (Instr. 5) |
Date Exercisable |
Expiration Date |
Title |
Amount or Number of Shares |
Stock Option (Right to Buy)
|
Â
(1)
|
09/24/2010 |
Common Stock
|
17,500
|
$
9.68
|
D
|
Â
|
Stock Option (Right to Buy)
|
Â
(1)
|
03/20/2013 |
Common Stock
|
7,500
|
$
11.73
|
D
|
Â
|
Stock Option (Right to Buy)
|
Â
(1)
|
03/08/2014 |
Common Stock
|
20,000
|
$
15.28
|
D
|
Â
|
Stock Option (Right to Buy)
|
Â
(1)
|
01/14/2015 |
Common Stock
|
16,000
|
$
22.17
|
D
|
Â
|
Stock Option (Right to Buy)
|
Â
(1)
|
01/20/2016 |
Common Stock
|
13,000
|
$
29.56
|
D
|
Â
|
Stock Option (Right to Buy)
|
Â
(1)
|
02/26/2014 |
Common Stock
|
13,000
|
$
31.14
|
D
|
Â
|
Stock Option (Right to Buy)
|
Â
(1)
|
02/25/2015 |
Common Stock
|
27,000
|
$
20.71
|
D
|
Â
|
Stock Option (Right to Buy)
|
Â
(1)
|
02/27/2016 |
Common Stock
|
21,000
|
$
15.62
|
D
|
Â
|
Stock Option (Right to Buy)
|
Â
(1)
|
03/08/2014 |
Common Stock
|
19,900
|
$
15.28
|
I
|
By Spouse
|
Stock Option (Right to Buy)
|
Â
(1)
|
01/14/2015 |
Common Stock
|
8,000
|
$
22.17
|
I
|
By Spouse
|
Stock Option (Right to Buy)
|
Â
(1)
|
01/20/2016 |
Common Stock
|
13,000
|
$
29.56
|
I
|
By Spouse
|
Stock Option (Right to Buy)
|
Â
(1)
|
02/26/2014 |
Common Stock
|
16,000
|
$
31.14
|
I
|
By Spouse
|
Stock Option (Right to Buy)
|
Â
(1)
|
02/25/2015 |
Common Stock
|
29,000
|
$
20.71
|
I
|
By Spouse
|
Stock Option (Right to Buy)
|
Â
(1)
|
02/27/2016 |
Common Stock
|
23,000
|
$
15.62
|
I
|
By Spouse
|