CUBIST PHARMACEUTICALS INC

CUSIP: 229678107 Class: COM

GW&K Investment Management, LLC's Holding History (CIK: 0001082917)

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

Q4 2014
Shares 117,930 Value ($000) $11,870 Avg Close — Range —
Q3 2014
Shares 79,746 Value ($000) $5,290 Avg Close — Range —
Q2 2014
Shares 74,127 Value ($000) $5,176 Avg Close — Range —
Q1 2014
Shares 67,432 Value ($000) $4,933 Avg Close — Range —
Q4 2013
Shares 517,732 Value ($000) $35,656 Avg Close — Range —
Q3 2013
Shares 698,683 Value ($000) $44,401 Avg Close — Range —
Q2 2013
Shares 597,224 Value ($000) $28,840 Avg Close — Range —