CENTURY ALUM CO

Ticker: CENX CUSIP: 156431108 Class: EQTY

BlueCrest Capital Management Ltd's Holding History (CIK: 0001610880)

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

Q4 2018

Shares 18,248 Value ($000) $133 Avg Close $9.06 Range $6.54 - $12.25

Q2 2018

Shares 378,644 Value ($000) $5,964 Avg Close $16.93 Range $14.14 - $20.19

Q1 2018

Shares 17,056 Value ($000) $282 Avg Close $20.90 Range $15.56 - $24.77

Q2 2017

Shares 10,298 Value ($000) $160 Avg Close $13.95 Range $11.59 - $17.28

Q4 2015

Shares 109,403 Value ($000) $484 Avg Close $4.29 Range $3.19 - $7.21

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	18,248	$133	$9.06	$6.54 - $12.25
Q2 2018	378,644	$5,964	$16.93	$14.14 - $20.19
Q1 2018	17,056	$282	$20.90	$15.56 - $24.77
Q2 2017	10,298	$160	$13.95	$11.59 - $17.28
Q4 2015	109,403	$484	$4.29	$3.19 - $7.21