Note 10 - Equity Incentive Plans

3 Months Ended

Mar. 31, 2021

Notes to Financial Statements

Stock Incentive Plans Disclosure [Text Block]

10

. Equity Incentive Plans

2010

Stock Incentive Plan

. In

February 2011,

the Company's stockholders approved the Gevo, Inc.

2010

Stock Incentive Plan (as amended and restated to date, the

"2010

Plan"). The

2010

Plan provided for the grant of non-qualified stock options, incentive stock options, stock appreciation rights, restricted stock awards, restricted stock units and other equity awards to employees and directors of the Company. On

June 3, 2020,

the

2010

Plan was amended and restated, which increased the number of shares of common stock reserved for issuance to a total of

6,980,074

shares.

Restricted common stock activity during the

three

 months ended

March 31, 2021

consisted of the following:

• During the three months ended March 31, 2021, the Company cancelled 121,466 shares of common stock related to the vested restricted stock awards due to the resignation of a director.

At

March 31, 2021,

1,351,858

 shares remain available for awards under the

2010

Plan.

Employee Stock Purchase Plan

. In

February 2011,

the Company's stockholders approved the Employee Stock Purchase Plan (the "ESPP"). The offering periods for the ESPP are from

January 1

to

June 30

and from

July 1

to

December 31

of each calendar year. The Company has reserved

190

 shares of common stock for issuance under the ESPP, of which

190

shares as of

March 31, 2021 

are available for future issuance. The purchase price of the common stock under the ESPP is

85%

of the lower of the fair market value of a share of common stock on the

first

or last day of the purchase period. There were

no

purchases of common stock under the ESPP during the

three

months ended

March 31, 2021

or

2020.