CUBIST PHARMACEUTICALS INC

CUSIP: 229678107 Class: COM

Mirae Asset Global Investments Co., Ltd.'s Holding History (CIK: 0001569395)

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

Q2 2012
Shares 16,800 Value ($000) $637 Avg Close — Range —
Q1 2012
Shares 15,600 Value ($000) $675 Avg Close — Range —
Q4 2011
Shares 9,400 Value ($000) $372 Avg Close — Range —