METABOLIX INC

CUSIP: 591018809 Class: CMN

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2014
Shares 4,400 Value ($000) $6 Avg Close — Range —
Q4 2013
Shares 2,700 Value ($000) $3 Avg Close — Range —
Q3 2013
Shares 200 Value ($000) $0 Avg Close — Range —