SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

Zurcher Kantonalbank (Zurich Cantonalbank)'s Holding History (CIK: 0001368163)

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

Q2 2013
Shares 700 Value ($000) $39 Avg Close — Range —
Q1 2013
Shares 700 Value ($000) $41 Avg Close — Range —
Q4 2012
Shares 1,500 Value ($000) $71 Avg Close — Range —
Q3 2012
Shares 1,500 Value ($000) $74 Avg Close — Range —
Q2 2012
Shares 1,500 Value ($000) $77 Avg Close — Range —
Q1 2012
Shares 1,500 Value ($000) $72 Avg Close — Range —
Q4 2011
Shares 22,598 Value ($000) $732 Avg Close — Range —