CENTURY ALUM CO

Ticker: CENX CUSIP: 156431108 Class: EQTY

Fortitude Family Office, LLC's Holding History (CIK: 0001950506)

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

Q4 2025

Shares 124 Value ($000) $5 Avg Close $31.24 Range $25.40 - $40.83

Q3 2025

Shares 124 Value ($000) $4 Avg Close $22.67 Range $17.75 - $30.08

Q2 2025

Shares 124 Value ($000) $2 Avg Close $16.98 Range $13.05 - $20.43

Q1 2025

Shares 14 Value ($000) $0 Avg Close $19.21 Range $16.30 - $22.92

Q4 2024

Shares 14 Value ($000) $0 Avg Close $19.65 Range $14.89 - $25.39

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	124	$5	$31.24	$25.40 - $40.83
Q3 2025	124	$4	$22.67	$17.75 - $30.08
Q2 2025	124	$2	$16.98	$13.05 - $20.43
Q1 2025	14	$0	$19.21	$16.30 - $22.92
Q4 2024	14	$0	$19.65	$14.89 - $25.39