The following common stock is reserved for future issuance at December 31⁽¹⁾ (in thousands):

⁽¹⁾ Treasury stock in the amount of 465,000 and 357,000 as of December 31, 2019, and 2018, respectively, are excluded from the table above.

⁽²⁾ On January 1, 2019, the number of authorized shares in the 2016 Equity Incentive Plan increased by 384,045 shares pursuant to the evergreen provisions of the 2016 Equity Incentive Plan.

⁽³⁾ On January 1, 2019, the number of authorized shares in the 2016 Employee Stock Purchase Plan increased by 96,000 shares pursuant to the evergreen provisions of the 2016 Employee Stock Purchase Plan.