X0306 4 2020-02-27 0001392380 Gevo, Inc. GEVO 0001797471 Smull L Lynn C/O GEVO, INC. 345 INVERNESS DRIVE SOUTH BUILDING C, SUITE 310 ENGLEWOOD CO 80112 1 Chief Financial Officer Common Stock 2020-02-27 4 A 0 99337 0 A 99337 D Represents restricted common stock that vests in three equal annual installments beginning on December 16, 2020, provided that the reporting person remains in continuous service with the issuer as of each vesting date. /s/ Geoffrey T. Williams, Jr., Attorney-in-Fact 2020-02-28