USEC INC

CUSIP: 90333E207 Class: COMMON

CITADEL ADVISORS LLC's Holding History (CIK: 0001423053)

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

Q1 2014
Shares 59,558 Value ($000) $239 Avg Close — Range —
Q4 2013
Shares 33,014 Value ($000) $219 Avg Close — Range —
Q3 2013
Shares 10,618 Value ($000) $112 Avg Close — Range —