GUIDANCE SOFTWARE INC

CUSIP: 401692108 Class: CMN

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

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

Q4 2014
Shares 767 Value ($000) $6 Avg Close — Range —
Q3 2014
Shares 200 Value ($000) $1 Avg Close — Range —
Q2 2014
Shares 200 Value ($000) $2 Avg Close — Range —