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 |
Employee Stock Option (Right to Buy)
|
(1)
|
12/28/2005 |
Common Stock
|
9,336
|
$
9.16
|
D
|
|
Employee Stock Option (Right to Buy)
|
(2)
|
12/17/2006 |
Common Stock
|
10,892
|
$
11.97
|
D
|
|
Employee Stock Option (Right to Buy)
|
(3)
|
11/13/2007 |
Common Stock
|
12,448
|
$
15.02
|
D
|
|
Employee Stock Option (Right to Buy)
|
(4)
|
10/29/2008 |
Common Stock
|
15,561
|
$
14.07
|
D
|
|
Employee Stock Option (Right to Buy)
|
(5)
|
12/13/2009 |
Common Stock
|
15,561
|
$
22.09
|
D
|
|
Employee Stock Option (Right to Buy)
|
(6)
|
12/21/2010 |
Common Stock
|
7,780
|
$
15.2
|
D
|
|
Employee Stock Option (Right to Buy)
|
(7)
|
11/06/2011 |
Common Stock
|
7,780
|
$
18.7
|
D
|
|
Employee Stock Option (Right to Buy)
|
(8)
|
02/13/2012 |
Common Stock
|
15,561
|
$
20.4
|
D
|
|
Employee Stock Option (Right to Buy)
|
(9)
|
02/10/2013 |
Common Stock
|
19,451
|
$
16.61
|
D
|
|
Employee Stock Option (Right to Buy)
|
(10)
|
02/10/2014 |
Common Stock
|
31,122
|
$
20.72
|
D
|
|
Employee Stock Option (Right to Buy)
|
(11)
|
02/23/2015 |
Common Stock
|
20,000
|
$
31.22
|
D
|
|
* |
If the form is filed by more than one reporting person, see Instruction 5(b)(v). |
** |
Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). |
(1) |
Exercisable in 20 percent increments annually beginning 12/28/1996. |
(2) |
Exercisable in 20 percent increments annually beginning 12/17/1997. |
(3) |
Exercisable in 20 percent increments annually beginning 11/13/1998. |
(4) |
Exercisable in 20 percent increments annually beginning 10/29/1999. |
(5) |
Exercisable in 20 percent increments annually beginning 12/13/2000. |
(6) |
Exercisable in 20 percent increments annually beginning 12/21/2001. |
(7) |
40 percent exercisable on 11/06/2002; 20 percent exercisable on 11/06/2003; 20 percent exercisable on 11/06/2004; 20 percent
exercisable on 11/06/2005. |
(8) |
Exercisable in 20 percent increments annually beginning 02/13/2003. |
(9) |
Exercisable in 20 percent increments annually beginning 02/10/2004. |
(10) |
Exercisable in 20 percent increments annually beginning 02/10/2005. |
(11) |
Exercisable in 20 percent increments annually beginning 02/23/2006. |