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
(1)
|
08/02/2009 |
Common Stock
|
20,076
|
$
3.83
|
D
|
Â
|
Employee stock option (right to buy)
|
Â
(2)
|
01/01/2011 |
Common Stock
|
6,519
|
$
3.83
|
D
|
Â
|
Employee stock option (right to buy)
|
Â
(3)
|
01/01/2012 |
Common Stock
|
3,260
|
$
3.83
|
D
|
Â
|
Employee stock option (right to buy)
|
Â
(4)
|
05/01/2013 |
Common Stock
|
978
|
$
7.67
|
D
|
Â
|
Employee stock option (right to buy)
|
Â
(5)
|
04/05/2014 |
Common Stock
|
418
|
$
20.91
|
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) |
These options became exercisable in five annual installments of
August 2, 2000, August 2, 2001, August 2, 2002, August 2, 2003 and August 2, 2004 |
(2) |
These options became exercisable in two annual installments on
January 1, 2002 and January 1, 2003 |
(3) |
These options became exercisable in two annual installments on January 1, 2003 and January 1, 2004 |
(4) |
These options became exercisable in two annual installments on May 1, 2004 and May 1, 2005 |
(5) |
These options became exercisable in two annual installments on
April 5, 2005 and April 5, 2006 |