COVANCE INC

CUSIP: 222816100 Class: COM

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

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

Q4 2014
Shares 107,352 Value ($000) $11,147 Avg Close — Range —
Q3 2014
Shares 106,297 Value ($000) $8,366 Avg Close — Range —
Q2 2014
Shares 104,779 Value ($000) $8,967 Avg Close — Range —
Q1 2014
Shares 101,679 Value ($000) $10,564 Avg Close — Range —
Q4 2013
Shares 101,179 Value ($000) $8,910 Avg Close — Range —
Q3 2013
Shares 100,479 Value ($000) $8,687 Avg Close — Range —
Q2 2013
Shares 97,375 Value ($000) $7,414 Avg Close — Range —
Q1 2013
Shares 96,391 Value ($000) $7,164 Avg Close — Range —