CUBIST PHARMACEUTICALS INC

CUSIP: 229678123 Class: COMMON

WATER ISLAND CAPITAL LLC's Holding History (CIK: 0001222765)

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

Q4 2014
Shares 2,950,869 Value ($000) $118,035 Avg Close — Range —
Q3 2014
Shares 2,950,869 Value ($000) $354,104 Avg Close — Range —
Q2 2014
Shares 2,950,869 Value ($000) $341,711 Avg Close — Range —
Q1 2014
Shares 2,990,735 Value ($000) $1,943 Avg Close — Range —
Q4 2013
Shares 2,990,735 Value ($000) $4,037 Avg Close — Range —