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 |
Stock Option (right to buy)
|
Â
(1)
|
02/09/2016 |
Common Stock
|
37,500
|
$
2
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(2)
|
05/09/2017 |
Common Stock
|
50,000
|
$
5.2
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(3)
|
01/31/2018 |
Common Stock
|
29,999
|
$
6.44
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(4)
|
04/01/2019 |
Common Stock
|
12,499
|
$
8.48
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(5)
|
02/02/2020 |
Common Stock
|
22,499
|
$
12.24
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(6)
|
02/15/2021 |
Common Stock
|
12,500
|
$
14.16
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(7)
|
01/31/2022 |
Common Stock
|
27,700
|
$
13.18
|
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) |
This option is fully vested as of February 9, 2010. |
(2) |
This option is fully vested as of January 1, 2011. |
(3) |
This option is fully vested as of January 1, 2012. |
(4) |
This option vests in equal monthly installments beginning January 1, 2009 through January 1, 2013. |
(5) |
This option is fully vested as of December 31, 2011. |
(6) |
This option vests in equal monthly installments beginning January 1, 2011 through January 1, 2015. |
(7) |
This option vests in equal monthly installments beginning January 1, 2012 through January 1, 2016. |