SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q3 2013
Shares 1,898,962 Value ($000) $144,169 Avg Close — Range —
Q2 2013
Shares 1,824,936 Value ($000) $101,376 Avg Close — Range —