CenterBook Partners’s Century Aluminum CENX Stock Holding History

CenterBook Partners’s Portfolio CENX Stock Details CENX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	$2.8M	Buy	77,831 +49,475	+174%	+$2.19M	0.13%	205
2026 Q2	$1.3M	Buy	+28,356	New	+$1.71M	0.06%	310
2026 Q1	–	Sell	-9,582	Closed	-$375K	–	666
2025 Q4	$375K	Sell	9,582 -14,421	-60%	-$451K	0.02%	513
2025 Q3	$705K	Buy	+24,003	New	+$544K	0.03%	433

Other funds holding CENX

Glencore Baar, Switzerland $4.58B AUM 33.14% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $103B AUM 40.17% 1-Year Est. Return

Allspring Global Investments Charlotte, North Carolina $64.1B AUM 28.9% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Russell Investments Group London, United Kingdom $114B AUM 33.83% 1-Year Est. Return

Congress Asset Management Boston, Massachusetts $15.4B AUM 30.39% 1-Year Est. Return

CenterBook Partners's CENX Position: Q3 2026 in Review

CenterBook Partners increased its Century Aluminum (CENX) stake by 174% in Q3 2026, buying an estimated $2.19M and bringing the position to 77,831 shares worth $2.8M. The position accounts for 0.13% of the portfolio, ranked #205.

CenterBook Partners first reported a position in CENX in Q3 2025 and has held it in 4 quarters since. 144 funds tracked by Wall St. Rank hold CENX as of Q3 2026.

CenterBook Partners held 77,831 shares of Century Aluminum worth $2.8M as of Q3 2026.
CenterBook Partners bought 49,475 Century Aluminum shares in Q3 2026, an estimated $2.19M.
Century Aluminum made up 0.13% of CenterBook Partners's portfolio in Q3 2026, its #205 holding.
CenterBook Partners first reported a position in Century Aluminum in Q3 2025 and has held it in 4 quarters since.
144 funds tracked by Wall St. Rank held Century Aluminum as of Q3 2026.

Based on CenterBook Partners's 13F filing for Q3 2026, filed 2 Nov 2026.