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)
|
04/19/2017 |
Common Stock
|
100,000
(2)
|
$
2.45
(2)
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(3)
|
08/28/2017 |
Common Stock
|
22,000
(2)
|
$
6.71
(2)
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(4)
|
10/25/2017 |
Common Stock
|
37,333
(2)
|
$
6.86
(2)
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(5)
|
06/02/2019 |
Common Stock
|
33,333
(2)
|
$
7.46
(2)
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(6)
|
11/09/2019 |
Common Stock
|
40,666
(2)
|
$
9.09
(2)
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(7)
|
02/11/2020 |
Common Stock
|
33,333
(2)
|
$
10.92
(2)
|
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 vests with respect to 25% of the shares subject thereto on April 2, 2008, with 1/48th of the shares vesting monthly thereafter, such that the option will be fully vested and exercisable on April 2, 2011. |
(2) |
Reflects a 2-for-3 reverse stock split of the Issuer's outstanding securities effected immediately prior to the effectiveness of the Issuer's S-1 Registration Statement (Commission File No. 333-164044). |
(3) |
Option vests with respect to 25% of the shares subject thereto on August 28, 2008, with 1/48th of the shares vesting monthly thereafter, such that the option will be fully vested and exercisable on August 28, 2011. |
(4) |
Option vests with respect to 25% of the shares subject thereto on October 25, 2008, with 1/48th of the shares vesting monthly thereafter, such that the option will be fully vested and exercisable on October 25, 2011. |
(5) |
Option vests with respect to 1/24th of the shares subject thereto monthly commencing on January 1, 2011, such that the option will be fully vested and exercisable on January 1, 2013. |
(6) |
Option vests with respect to 25% of the shares subject thereto on November 9, 2010, with 1/48th of the shares vesting monthly thereafter, such that the option will be fully vested and exercisable on November 9, 2013. |
(7) |
Option vests with respect to 100% of the shares subject thereto on January 1, 2015. Upon the completion of the Issuer's initial public offering, the option will vest with respect to 25% of the shares subject thereto on January 1, 2011, with 1/48th of the shares vesting monthly thereafter, such that the option will be fully vested and exercisable on January 1, 2014. |