Statement of Changes in Beneficial Ownership (4)

X0306 4 2014-08-13 0 0001392380 Gevo, Inc. GEVO 0001511369 Gruber Patrick R. GEVO, INC., 345 INVERNESS DRIVE SOUTH BUILDING C, SUITE 310 ENGLEWOOD CO 80112 1 1 0 0 Chief Executive Officer Common Stock 2014-08-13 4 S 0 4047 .48 D 362670 D Common Stock 2014-08-15 4 S 0 1255 .46 D 361415 D Common Stock 2014-08-18 4 S 0 6054 .46 D 355361 D Shares were sold to satisfy certain tax obligations of the reporting person triggered by the vesting of such restricted stock shares. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted May 24, 2013. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $.45 to $.50, inclusive. The reporting person undertakes to provide to Gevo, Inc., any security holder of Gevo, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $.46 to $.47, inclusive. The reporting person undertakes to provide to Gevo, Inc., any security holder of Gevo, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $.45 to $.47, inclusive. The reporting person undertakes to provide to Gevo, Inc., any security holder of Gevo, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4. /s/ Brett Lund, Attorney-in-Fact 2014-08-18