CUBIST PHARMACEUTICALS INC

CUSIP: 229678123 Class: COMMON

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2014
Shares 15,000 Value ($000) $1 Avg Close — Range —
Q3 2014
Shares 20,000 Value ($000) $2 Avg Close — Range —
Q2 2014
Shares 20,000 Value ($000) $2 Avg Close — Range —
Q1 2014
Shares 20,000 Value ($000) $13 Avg Close — Range —
Q4 2013
Shares 20,000 Value ($000) $27 Avg Close — Range —