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)
|
Â
(2)
|
02/15/2006 |
Common Stock
|
1,311
|
$
6.67
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
Â
(3)
|
09/25/2007 |
Common Stock
|
16,338
|
$
7.33
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
Â
(4)
|
04/03/2008 |
Common Stock
|
12,042
|
$
6.67
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
Â
(5)
|
03/23/2009 |
Common Stock
|
16,572
|
$
6.45
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
Â
(6)
|
06/15/2010 |
Common Stock
|
29,075
|
$
14.34
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
Â
(7)
|
05/16/2011 |
Common Stock
|
27,330
|
$
11.79
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
Â
(8)
|
05/15/2012 |
Common Stock
|
18,608
|
$
8.19
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
Â
(9)
|
05/27/2013 |
Common Stock
|
20,352
|
$
10.44
|
D
|
Â
|
* |
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) |
Represents total number of shares acquired through 401(k) plan as reported by the plan administrator as of the transaction date. |
(2) |
Shares vest in five equal annual installments beginning 02/15/1997. |
(3) |
Shares vest in three equal annual installments beginning on 09/25/1998. |
(4) |
Shares vest in three equal annual installments beginning on 04/03/1999. |
(5) |
Shares vest in three equal annual installments beginning on 03/23/2000. |
(6) |
Shares vest in three equal annual installments beginning 06/15/2001. |
(7) |
Shares vest in four equal annual installments beginning on 05/17/2002. |
(8) |
Shares vest in four equal annual installments beginning on 05/16/2003. |
(9) |
Shares vest in four equal annual installments beginning on 05/28/2004. |