COVANCE INC

CUSIP: 222816100 Class: COM

BOKF, NA's Holding History (CIK: 0000009634)

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

Q4 2014
Shares 2,029 Value ($000) $211 Avg Close — Range —
Q3 2014
Shares 37,054 Value ($000) $2,916 Avg Close — Range —
Q2 2014
Shares 37,356 Value ($000) $3,196 Avg Close — Range —
Q1 2014
Shares 38,107 Value ($000) $3,960 Avg Close — Range —
Q4 2013
Shares 24,909 Value ($000) $2,194 Avg Close — Range —
Q3 2013
Shares 30,311 Value ($000) $2,621 Avg Close — Range —
Q2 2013
Shares 43,727 Value ($000) $3,329 Avg Close — Range —