SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

TEXAS PERMANENT SCHOOL FUND CORP's Holding History (CIK: 0001223779)

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

Q3 2013
Shares 32,984 Value ($000) $2,504 Avg Close — Range —
Q2 2013
Shares 34,928 Value ($000) $1,940 Avg Close — Range —
Q1 2013
Shares 34,497 Value ($000) $2,043 Avg Close — Range —