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 Options (Right to Buy)
|
02/25/2006 |
02/25/2015 |
Common Stock
|
6,342
|
$
15.71
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/25/2007 |
02/25/2015 |
Common Stock
|
6,343
|
$
15.71
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/25/2008 |
02/25/2015 |
Common Stock
|
6,343
|
$
15.71
|
D
|
Â
|
Stock Options (Right to Buy)
|
03/03/2007 |
03/03/2016 |
Common Stock
|
3,932
|
$
17.65
|
D
|
Â
|
Stock Options (Right to Buy)
|
03/03/2008 |
03/03/2016 |
Common Stock
|
3,932
|
$
17.65
|
D
|
Â
|
Stock Options (Right to Buy)
|
03/03/2009 |
03/03/2016 |
Common Stock
|
3,933
|
$
17.65
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/26/2008 |
02/26/2017 |
Common Stock
|
3,725
|
$
23.04
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/26/2009 |
02/26/2017 |
Common Stock
|
3,726
|
$
23.04
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/26/2010 |
02/26/2017 |
Common Stock
|
3,726
|
$
23.04
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/25/2009 |
02/25/2018 |
Common Stock
|
3,742
|
$
29.72
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/25/2010 |
02/25/2018 |
Common Stock
|
3,742
|
$
29.72
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/25/2011 |
02/25/2018 |
Common Stock
|
3,742
|
$
29.72
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/23/2010 |
02/23/2019 |
Common Stock
|
6,469
|
$
8.85
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/23/2011 |
02/23/2019 |
Common Stock
|
6,469
|
$
8.85
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/23/2012 |
02/23/2019 |
Common Stock
|
6,469
|
$
8.85
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/23/2011 |
02/23/2020 |
Common Stock
|
4,410
|
$
17.28
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/23/2012 |
02/23/2020 |
Common Stock
|
4,411
|
$
17.28
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/23/2013 |
02/23/2020 |
Common Stock
|
4,411
|
$
17.28
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/24/2012 |
02/24/2021 |
Common Stock
|
4,334
|
$
24.21
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/24/2013 |
02/24/2021 |
Common Stock
|
4,335
|
$
24.21
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/24/2014 |
02/24/2021 |
Common Stock
|
4,335
|
$
24.21
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/27/2013 |
02/27/2022 |
Common Stock
|
4,923
|
$
29.11
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/27/2014 |
02/27/2022 |
Common Stock
|
4,923
|
$
29.11
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/27/2015 |
02/27/2022 |
Common Stock
|
4,924
|
$
29.11
|
D
|
Â
|
Restricted Stock Units
|
02/23/2013 |
Â
(1)
|
Common Stock
|
4,895
|
$
0
|
D
|
Â
|
Restricted Stock Units
|
02/24/2014 |
Â
(1)
|
Common Stock
|
4,349
|
$
0
|
D
|
Â
|
Restricted Stock Units
|
02/27/2015 |
Â
(1)
|
Common Stock
|
5,690
|
$
0
|
D
|
Â
|
Restricted Stock Units
|
02/23/2013 |
Â
(2)
|
Common Stock
|
7,832
|
$
0
|
D
|
Â
|
Restricted Stock Units
|
02/24/2014 |
Â
(2)
|
Common Stock
|
6,958
|
$
0
|
D
|
Â
|
Restricted Stock Units
|
02/27/2015 |
Â
(2)
|
Common Stock
|
5,086
|
$
0
|
D
|
Â
|