COVANCE INC

CUSIP: 222816100 Class: COM

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

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

Q4 2014
Shares 62,097 Value ($000) $6,448 Avg Close — Range —
Q3 2014
Shares 7,846 Value ($000) $617 Avg Close — Range —
Q2 2014
Shares 7,983 Value ($000) $683 Avg Close — Range —
Q1 2014
Shares 7,908 Value ($000) $822 Avg Close — Range —
Q4 2013
Shares 7,883 Value ($000) $694 Avg Close — Range —
Q3 2013
Shares 7,935 Value ($000) $686 Avg Close — Range —
Q2 2013
Shares 7,952 Value ($000) $605 Avg Close — Range —