MERRIMACK PHARMACEUTICALS IN

CUSIP: 590328100 Class: CMN

SILVERBACK ASSET MANAGEMENT LLC's Holding History (CIK: 0001278960)

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

Q3 2014
Shares 18,950 Value ($000) $166 Avg Close — Range —
Q2 2014
Shares 29,600 Value ($000) $216 Avg Close — Range —