SOURCEFIRE INC

CUSIP: 83616T108 Class: COMMON STOCK

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q3 2013
Shares 4,580 Value ($000) $348 Avg Close — Range —
Q2 2013
Shares 4,316 Value ($000) $240 Avg Close — Range —