SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

SUSQUEHANNA INTERNATIONAL GROUP, LLP's Holding History (CIK: 0001446194)

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

Q3 2013
Shares 51,684 Value ($000) $3,924 Avg Close — Range —
Q2 2013
Shares 26,271 Value ($000) $1,459 Avg Close — Range —