CUBIST PHARMACEUTICALS INC

CUSIP: 229678123 Class: COMMON

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q4 2014
Shares 1,431,210 Value ($000) $57 Avg Close — Range —
Q3 2014
Shares 1,431,210 Value ($000) $172 Avg Close — Range —
Q2 2014
Shares 1,431,210 Value ($000) $166 Avg Close — Range —
Q1 2014
Shares 1,431,210 Value ($000) $930 Avg Close — Range —
Q4 2013
Shares 1,431,210 Value ($000) $1,932 Avg Close — Range —