GEVO INC

CUSIP: 374396208 Class: COM

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q2 2016
Shares 836,448 Value ($000) $494 Avg Close — Range —
Q1 2016
Shares 768,147 Value ($000) $207 Avg Close — Range —
Q4 2015
Shares 768,147 Value ($000) $476 Avg Close — Range —
Q3 2015
Shares 598,147 Value ($000) $1,029 Avg Close — Range —
Q2 2015
Shares 598,147 Value ($000) $1,956 Avg Close — Range —