X0609 4 2026-05-20 1 0001392380 Gevo, Inc. GEVO 0002071237 Fitzgerald Lindsay Clinton false C/O GEVO, INC. 345 INVERNESS DRIVE SOUTH BUILDING C, SUITE 310 ENGLEWOOD CO 80112 0 1 0 0 Chief Advocacy Officer 0 Common Stock 2026-05-20 4 A 0 59451 0 A 271650 D Common Stock 20608.74 I By 401(k) Plan Stock Option 1.64 2026-05-20 4 A 0 68690 0 A 2036-05-19 Common Stock 68690 68690 D Represents restricted common stock that vests in three equal annual installments beginning on the first anniversary of the grant date, provided that the reporting person remains in continuous service with the issuer as of each vesting date. Between March 12, 2026 and May 20, 2026, the reporting person disposed of 15.53 shares of the issuer's common stock under the issuer's 401(k) plan to cover administrative fees. The information in this report is based on a plan statement dated April 22, 2026. The stock options shall vest in three equal annual installments beginning on the first anniversary of the grant date, provided that the reporting person remains in continuous service with the issuer as of each vesting date. /s/ E. Cabell Massey, Attorney-in-Fact 2026-05-22