CENTURY ALUM CO

Ticker: CENX CUSIP: 156431108 Class: EQTY

MGO ONE SEVEN LLC's Holding History (CIK: 0001731444)

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

Q4 2018

Shares 90 Value ($000) $0 Avg Close $9.06 Range $6.54 - $12.25

Q1 2018

Shares 90 Value ($000) $1 Avg Close $20.90 Range $15.56 - $24.77

Q4 2017

Shares 90 Value ($000) $2 Avg Close $15.31 Range $13.00 - $20.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	90	$0	$9.06	$6.54 - $12.25
Q1 2018	90	$1	$20.90	$15.56 - $24.77
Q4 2017	90	$2	$15.31	$13.00 - $20.30