CENTURY ALUM CO

Ticker: CENX CUSIP: 156431108 Class: EQTY

Magnetar Financial LLC's Holding History (CIK: 0001352851)

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

Q1 2018

Shares 15,010 Value ($000) $248 Avg Close $20.90 Range $15.56 - $24.77

Q3 2017

Shares 61,504 Value ($000) $1,020 Avg Close $17.26 Range $12.94 - $20.68

Q2 2017

Shares 11,190 Value ($000) $174 Avg Close $13.95 Range $11.59 - $17.28

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	15,010	$248	$20.90	$15.56 - $24.77
Q3 2017	61,504	$1,020	$17.26	$12.94 - $20.68
Q2 2017	11,190	$174	$13.95	$11.59 - $17.28