SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

CITADEL ADVISORS LLC's Holding History (CIK: 0001423053)

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

Q3 2013
Shares 323 Value ($000) $25 Avg Close — Range —
Q2 2013
Shares 340,172 Value ($000) $18,897 Avg Close — Range —