CENTURY ALUM CO

Ticker: CENX CUSIP: 156431108 Class: EQTY

HARBOR CAPITAL ADVISORS, INC.'s Holding History (CIK: 0001039128)

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

Q4 2025

Shares 147 Value ($000) $0 Avg Close $31.24 Range $25.40 - $40.83

Q3 2025

Shares 150 Value ($000) $0 Avg Close $22.67 Range $17.75 - $30.08

Q2 2025

Shares 407 Value ($000) $0 Avg Close $16.98 Range $13.05 - $20.43

Q1 2025

Shares 427 Value ($000) $0 Avg Close $19.21 Range $16.30 - $22.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	147	$0	$31.24	$25.40 - $40.83
Q3 2025	150	$0	$22.67	$17.75 - $30.08
Q2 2025	407	$0	$16.98	$13.05 - $20.43
Q1 2025	427	$0	$19.21	$16.30 - $22.92