Number of Class A Shares

Weighted Average Exercise Price

Number of Class C Shares

Weighted Average Exercise Price

Outstanding at December 31, 2014

512,795

$ 3.20

691,591

$ 2.00

Granted

-

Exercised

-

(114,023)

2.14

Cancelled

(8,846)

2.31

-

Outstanding at March 31, 2015

503,949

$ 3.21

577,568

$ 2.62

As of March 31, 2015:

Options exercisable

379,946

$ 2.75

471,943

$ 2.15

As of March 31, 2015:

Available options for future grant

266,649

-

Weighted average contractual term of options

outstanding at March 31, 2015

7.57 years

2.93 years

Weighted average contractual term of options

exercisable at March 31, 2015

6.91 years

2.30 years

Aggregated intrinsic value of options

outstanding at March 31, 2015 (1)

$1,076,880

$1,572,653

Aggregated intrinsic value of options

exercisable at March 31, 2015 (1)

$988,022

$1,506,415

(1) The Company used a stock price of $5.34 as of March 31, 2015 to derive intrinsic value.