SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q3 2013
Shares 26,600 Value ($000) $2,019 Avg Close — Range —
Q2 2013
Shares 27,800 Value ($000) $1,544 Avg Close — Range —