COVANCE INC

CUSIP: 222816100 Class: COM

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

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

Q4 2014
Shares 8,010 Value ($000) $832 Avg Close — Range —
Q3 2014
Shares 8,010 Value ($000) $630 Avg Close — Range —
Q2 2014
Shares 4,710 Value ($000) $403 Avg Close — Range —
Q1 2014
Shares 4,710 Value ($000) $489 Avg Close — Range —
Q4 2013
Shares 4,710 Value ($000) $415 Avg Close — Range —
Q3 2013
Shares 4,710 Value ($000) $407 Avg Close — Range —
Q2 2013
Shares 4,710 Value ($000) $359 Avg Close — Range —