Officer and Director Transactions

Ryan Christopher Michael, President & COO of Gevo, Inc., reported the sale of 87,700 shares of Common Stock on May 27, 2026. The sale was part of a 10b5-1 trading plan to cover tax withholding obligations upon vesting of a restricted stock award. The shares were sold at a weighted average price of $1.7598, with individual transactions ranging from $1.74 to $1.80. Following this transaction, Michael has 1,314,441 shares remaining. Additionally, the filing notes the disposal of 20.76 shares from his 401(k) plan to cover administrative fees between March 30 and May 27, 2026, leaving 27,868.19 shares in the plan.