CUBIST PHARMACEUTICALS INC

CUSIP: 229678123 Class: COMMON

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

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

Q2 2014
Shares 2,295,633 Value ($000) $266 Avg Close — Range —
Q1 2014
Shares 2,558,079 Value ($000) $1,663 Avg Close — Range —
Q4 2013
Shares 2,700,945 Value ($000) $3,646 Avg Close — Range —