GEVO INC

CUSIP: 374396109 Class: CMN

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

Note: Option positions (PUT/CALL) are excluded.

Q1 2015
Shares 5,600 Value ($000) $1 Avg Close — Range —
Q4 2014
Shares 500 Value ($000) $0 Avg Close — Range —