COVANCE INC

CUSIP: 222816100 Class: COM

NEW YORK STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0000314969)

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

Q4 2014
Shares 96,445 Value ($000) $10,015 Avg Close — Range —
Q3 2014
Shares 98,345 Value ($000) $7,740 Avg Close — Range —
Q2 2014
Shares 99,045 Value ($000) $8,476 Avg Close — Range —
Q1 2014
Shares 102,845 Value ($000) $10,686 Avg Close — Range —
Q4 2013
Shares 103,845 Value ($000) $9,145 Avg Close — Range —
Q3 2013
Shares 109,345 Value ($000) $9,454 Avg Close — Range —
Q2 2013
Shares 110,045 Value ($000) $8,379 Avg Close — Range —