SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

COMERICA BANK's Holding History (CIK: 0000901541)

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

Q3 2013
Shares 33,607 Value ($000) $2,552 Avg Close — Range —
Q2 2013
Shares 33,506 Value ($000) $1,861 Avg Close — Range —