SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q3 2013
Shares 1,239,902 Value ($000) $94,133 Avg Close — Range —
Q2 2013
Shares 1,417,662 Value ($000) $78,751 Avg Close — Range —