Boston Partners

Position in CENX — Century Aluminum Co

CIK 1386060 BOSTON, MA

Position in CENX

as of Mar 31, 2026 · filed May 11, 2026 Compact

Position Value

$18,187,796

-$5,329,489 QoQ

Shares Held

309,896

-48.4% QoQ

Ownership

0.313%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2025

5 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Basic Materials · as of Mar 31, 2026

Boston Partners holds $27,700,084 across 3 Aluminum names. CENX ranks #1 (65.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CENX	Century Aluminum Co This page	309,896	$18,187,796
2	AA	Alcoa Corp	120,810	$8,013,326
3	CSTM	Constellium SE	60,983	$1,498,962

5 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$18,187,796	309,896	-48.4%	Shares	Defined	2026-05-11
2025-12-31	$23,517,285	600,237	-47.3%	Shares	Defined	2026-02-13
2025-09-30	$33,460,446	1,139,661	-34.3%	Shares	Defined	2025-11-13
2025-06-30	$31,240,697	1,733,668	+340.1%	Shares	Defined	2025-08-12
2025-03-31	$7,311,229	393,924	—	Shares	Defined	2025-05-13
No filing history on record for this holder in this stock.