CUBIST PHARMACEUTICALS INC

CUSIP: 229678107 Class: COM

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q4 2014
Shares 37,546 Value ($000) $3,779 Avg Close — Range —
Q3 2014
Shares 37,802 Value ($000) $2,508 Avg Close — Range —
Q2 2014
Shares 37,328 Value ($000) $2,606 Avg Close — Range —
Q1 2014
Shares 37,240 Value ($000) $2,724 Avg Close — Range —
Q4 2013
Shares 37,022 Value ($000) $2,550 Avg Close — Range —
Q3 2013
Shares 119,430 Value ($000) $7,590 Avg Close — Range —
Q2 2013
Shares 119,810 Value ($000) $5,787 Avg Close — Range —