SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

WASATCH ADVISORS LP's Holding History (CIK: 0000814133)

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

Q3 2013
Shares 965,176 Value ($000) $73,276 Avg Close — Range —
Q2 2013
Shares 1,089,892 Value ($000) $60,544 Avg Close — Range —