FUEL SYS SOLUTIONS INC

CUSIP: 35952W103 Class: CMN

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

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

Q4 2014
Shares 885 Value ($000) $10 Avg Close — Range —
Q3 2014
Shares 1,384 Value ($000) $12 Avg Close — Range —
Q4 2013
Shares 4,337 Value ($000) $60 Avg Close — Range —
Q2 2013
Shares 55 Value ($000) $1 Avg Close — Range —