CENTURY ALUM CO

Ticker: CENX CUSIP: 156431108 Class: EQTY

Y-Intercept (Hong Kong) Ltd's Holding History (CIK: 0001772875)

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

Q4 2025

Shares 141,200 Value ($000) $5,532 Avg Close $31.24 Range $25.40 - $40.83

Q3 2025

Shares 50,114 Value ($000) $1,471 Avg Close $22.67 Range $17.75 - $30.08

Q4 2024

Shares 17,666 Value ($000) $322 Avg Close $19.65 Range $14.89 - $25.39

Q3 2024

Shares 24,262 Value ($000) $394 Avg Close $15.15 Range $11.40 - $21.37

Q2 2024

Shares 50,856 Value ($000) $852 Avg Close $17.02 Range $14.73 - $19.88

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	141,200	$5,532	$31.24	$25.40 - $40.83
Q3 2025	50,114	$1,471	$22.67	$17.75 - $30.08
Q4 2024	17,666	$322	$19.65	$14.89 - $25.39
Q3 2024	24,262	$394	$15.15	$11.40 - $21.37
Q2 2024	50,856	$852	$17.02	$14.73 - $19.88