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 |
Warrant (Right to Buy Common Stock)
|
Â
(1)
|
01/31/2013 |
Common Stock
|
255,257
|
$
0.1
|
D
|
Â
|
Stock Options (Right to Buy)
|
Â
(1)
|
05/01/2013 |
Common Stock
|
1,642,466
|
$
0.08
|
D
|
Â
|
Stock Options (Right to Buy)
|
05/01/2006(2)
|
05/01/2015 |
Common Stock
|
353,345
|
$
0.18
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/14/2006(3)
|
02/14/2016 |
Common Stock
|
231,925
|
$
0.87
|
D
|
Â
|
Stock Options (Right to Buy)
|
02/14/2006(3)
|
02/14/2016 |
Common Stock
|
550,824
|
$
0.87
|
D
|
Â
|
Stock Options (Right to Buy)
|
03/14/2006(4)
|
03/14/2016 |
Common Stock
|
260,918
|
$
0.92
|
D
|
Â
|
Stock Options (Right to Buy)
|
03/01/2008(5)
|
02/28/2017 |
Common Stock
|
710,737
|
$
3.33
|
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) |
Option shares are vested and exercisable immediately. |
(2) |
25% of the option shares vested and became exercisable on such date with the remaining shares vesting and becoming exercisable at a rate of 2.08% of the option shares monthly thereafter. |
(3) |
4.166% of the option shares vested and became exercisable on such date with the remaining shares vesting and becoming exercisable at a rate of 2.083% of the option shares on the first day of each month thereafter. |
(4) |
6.249% of the option shares vested and became exercisable on such date with the remaining shares vesting and becoming exercisable at a rate of 2.083% of the option shares on the first day of each month thereafter. |
(5) |
25% of the option shares vested and became exercisable on such date with the remaining shares vesting and becoming exercisable at a rate of 2.08% of the option shares monthly thereafter. |