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)
|
08/26/2014 |
08/25/2023 |
Common Stock
|
150,000
|
$
1.36
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
01/11/2014(1)
|
01/10/2023 |
Common Stock
|
97,150
|
$
3.31
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
01/13/2013(2)
|
01/12/2022 |
Common Stock
|
77,000
|
$
3.67
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
01/07/2012(2)
|
01/06/2021 |
Common Stock
|
90,000
|
$
2.14
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
01/11/2011(2)
|
01/10/2020 |
Common Stock
|
67,500
|
$
3.47
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
01/09/2013(3)
|
01/08/2019 |
Common Stock
|
45,000
|
$
1.73
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
01/04/2012(3)
|
01/03/2018 |
Common Stock
|
15,000
|
$
4.27
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
01/05/2011(3)
|
01/04/2017 |
Common Stock
|
20,000
|
$
6.71
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
09/14/2010(3)
|
09/13/2016 |
Common Stock
|
10,000
|
$
4.85
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
08/03/2010(3)
|
08/02/2016 |
Common Stock
|
1,700
|
$
4.74
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
01/06/2010(3)
|
01/05/2016 |
Common Stock
|
2,000
|
$
4.54
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
01/31/2009(3)
|
01/30/2015 |
Common Stock
|
4,500
|
$
4.78
|
D
|
Â
|
Employee Stock Option (Right to Buy)
|
02/09/2008(3)
|
02/08/2014 |
Common Stock
|
3,000
|
$
6.35
|
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) |
25% of the shares subject to the stock option vest and become exercisable on the date reported in column 2 above, the first anniversary of the grant date. The remaining shares vest in equal quarterly installments over the remaining three years. |
(2) |
25% of the shares subject to the stock option vested and became exercisable on the date reported in column 2 above, the first anniversary of the grant date. The remaining shares vest in equal quarterly installments over the remaining three years. |
(3) |
The option became fully vested and exercisable on the date reported in column 2 above. 25% of the shares subject to the stock option vested and became exercisable on the first anniversary of the grant date. The remaining shares vested in equal quarterly installments over the remaining three years. |