CENTURY ALUM CO

Ticker: CENX CUSIP: 156431108 Class: EQTY

SUMMIT SECURITIES GROUP LLC's Holding History (CIK: 0001531593)

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

Q2 2025

Shares 3,242 Value ($000) $58 Avg Close $16.98 Range $13.05 - $20.43

Q4 2024

Shares 1,300 Value ($000) $24 Avg Close $19.65 Range $14.89 - $25.39

Q2 2016

Shares 31,548 Value ($000) $200 Avg Close $7.02 Range $5.64 - $9.40

Q1 2016

Shares 31,046 Value ($000) $219 Avg Close $5.54 Range $2.63 - $8.94

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	3,242	$58	$16.98	$13.05 - $20.43
Q4 2024	1,300	$24	$19.65	$14.89 - $25.39
Q2 2016	31,548	$200	$7.02	$5.64 - $9.40
Q1 2016	31,046	$219	$5.54	$2.63 - $8.94