SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q3 2013
Shares 56,006 Value ($000) $4,252 Avg Close — Range —
Q2 2013
Shares 54,280 Value ($000) $3,015 Avg Close — Range —
Q1 2013
Shares 51,347 Value ($000) $3,041 Avg Close — Range —