KEY ENERGY SVCS INC

CUSIP: 492914106 Class: CMN

AMERICAN CENTURY COMPANIES INC's Holding History (CIK: 0000748054)

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

Q1 2014
Shares 640,637 Value ($000) $5,919 Avg Close — Range —
Q3 2013
Shares 1,142,454 Value ($000) $8,328 Avg Close — Range —
Q2 2013
Shares 1,044,958 Value ($000) $6,218 Avg Close — Range —