GEVO INC

CUSIP: 374396109 Class: CMN

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2013
Shares 1,297,017 Value ($000) $2,490 Avg Close — Range —
Q2 2013
Shares 1,795,542 Value ($000) $3,645 Avg Close — Range —