SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

RHUMBLINE ADVISERS's Holding History (CIK: 0001115418)

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

Q3 2013
Shares 42,773 Value ($000) $3,247 Avg Close — Range —
Q2 2013
Shares 40,635 Value ($000) $2,257 Avg Close — Range —