September 30, 2018 (1)

December 31, 2017 (1)

Warrants issued and outstanding

51,003

51,003

Stock option awards issued and outstanding

1,479,654

1,203,627

Authorized for grants under the 2016 Equity Incentive Plan

438,584

633,052

Authorized for grants under the 2016 Employee Stock Purchase Plan

100,000

100,000

2,069,241

1,987,682

(1)

Treasury stock in the amount of 328,523  and 135,000 as of September 30, 2018 and December 31, 2017, respectively, are excluded from the table above.