CUBIST PHARMACEUTICALS INC

CUSIP: 229678107 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2014
Shares 140,606 Value ($000) $14,152 Avg Close — Range —
Q3 2014
Shares 139,211 Value ($000) $9,235 Avg Close — Range —
Q2 2014
Shares 137,495 Value ($000) $9,600 Avg Close — Range —
Q1 2014
Shares 118,595 Value ($000) $8,675 Avg Close — Range —
Q4 2013
Shares 118,095 Value ($000) $8,133 Avg Close — Range —
Q3 2013
Shares 117,295 Value ($000) $7,454 Avg Close — Range —
Q2 2013
Shares 113,626 Value ($000) $5,488 Avg Close — Range —
Q1 2013
Shares 110,100 Value ($000) $5,155 Avg Close — Range —