CUBIST PHARMACEUTICALS INC

CUSIP: 229678107 Class: COM

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q4 2014
Shares 939,425 Value ($000) $94,553 Avg Close — Range —
Q3 2014
Shares 2,429,284 Value ($000) $161,159 Avg Close — Range —
Q2 2014
Shares 2,291,443 Value ($000) $159,989 Avg Close — Range —
Q1 2014
Shares 2,333,428 Value ($000) $170,690 Avg Close — Range —
Q4 2013
Shares 2,491,560 Value ($000) $171,594 Avg Close — Range —
Q3 2013
Shares 3,671,530 Value ($000) $233,326 Avg Close — Range —
Q2 2013
Shares 4,347,059 Value ($000) $209,963 Avg Close — Range —