CUBIST PHARMACEUTICALS INC

CUSIP: 229678123 Class: COMMON

GABELLI FUNDS LLC's Holding History (CIK: 0001081407)

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

Q4 2014

Shares 131,300 Value ($000) $5 Avg Close — Range —

Q3 2014

Shares 131,300 Value ($000) $16 Avg Close — Range —

Q2 2014

Shares 131,300 Value ($000) $15 Avg Close — Range —

Q1 2014

Shares 131,300 Value ($000) $85 Avg Close — Range —

Q4 2013

Shares 131,300 Value ($000) $177 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	131,300	$5	—	—
Q3 2014	131,300	$16	—	—
Q2 2014	131,300	$15	—	—
Q1 2014	131,300	$85	—	—
Q4 2013	131,300	$177	—	—