CENTURY ALUMINUM CO

CENXNASDAQ

$37.18+0.24 (+0.65% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

CENTURY ALUMINUM CO price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 6, 2026. Price (+27.6%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
Glencore plc	29.99%	$1.37B	28.07%	Not reported
BlackRock, Inc.	10.41%	$474M	0.01%	Not reported
State Street Corp	5.60%	$255M	0.01%	Not reported
Vanguard Portfolio Management LLC	4.82%	$220M	0.01%	Not reported
Assenagon Asset Management S.A.	3.09%	$141M	0.09%	Not reported
Vanguard Capital Management LLC	3.00%	$137M	0.00%	Not reported
Invesco Ltd.	2.44%	$111M	0.01%	Not reported
Sourcerock Group LLC	2.29%	$104M	5.42%	Reduce 15.67%
Dimensional Fund Advisors LP	2.23%	$102M	0.02%	Not reported
FMR LLC	1.98%	$90.2M	0.00%	Not reported
Geode Capital Management, LLC	1.87%	$85M	0.00%	Not reported
Fisher Asset Management, LLC	1.55%	$70.6M	0.02%	Add 80.24%
Morgan Stanley	1.53%	$69.5M	0.00%	Not reported
Millennium Management LLC	1.13%	$51.4M	0.02%	Not reported
Goldman Sachs Group Inc	1.06%	$48.3M	0.00%	Not reported
Impala Asset Management LLC	1.05%	$47.6M	27.00%	Add 6.15%
Encompass Capital Advisors LLC	0.91%	$41.4M	1.47%	Reduce 41.99%
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	0.88%	$40.1M	0.05%	Not reported
UBS Group AG	0.88%	$39.9M	0.01%	Not reported
Qube Research & Technologies Ltd	0.86%	$39M	0.04%	Not reported
D. E. Shaw & Co., Inc.	0.80%	$36.6M	0.02%	Not reported
Kinetic Partners Management, LP	0.78%	$35.7M	0.85%	Add 46.08%
Balyasny Asset Management L.P.	0.77%	$34.9M	0.04%	Not reported
First Eagle Investment Management, LLC	0.73%	$33.3M	0.03%	Add 344.38%
Merewether Investment Management, LP	0.70%	$31.9M	0.60%	Add 34.72%
Northern Trust Corp	0.69%	$31.4M	0.00%	Not reported
Squarepoint Ops LLC	0.69%	$31.3M	0.03%	Not reported
Woodline Partners LP	0.63%	$28.8M	0.09%	Not reported
Bank of America Corp	0.61%	$27.7M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.60%	$27.4M	0.00%	Not reported
Wellington Management Group LLP	0.55%	$25.3M	0.00%	Add 45.04%
BW Gestao de Investimentos Ltda.	0.53%	$24.1M	0.48%	Add 69.44%
Mountaineer Partners Management, LLC	0.51%	$23.2M	16.84%	Reduce 13.82%
Jefferies Financial Group Inc.	0.49%	$22.4M	0.15%	Add 0.41%
Bridgewater Associates, LP	0.48%	$21.8M	0.09%	Reduce 35.30%
Massachusetts Financial Services Co	0.46%	$22.3M	0.01%	Add 3550.83%
Driehaus Capital Management LLC	0.46%	$21M	0.12%	New Not reported
Vanguard Fiduciary Trust Co	0.43%	$19.7M	0.00%	Not reported
Bank of New York Mellon Corp	0.41%	$18.6M	0.00%	Not reported
Voloridge Investment Management, LLC	0.40%	$18.1M	0.08%	Reduce 45.47%
Capital World Investors	0.40%	$18M	0.00%	New Not reported
Royce & Associates LP	0.38%	$17.1M	0.14%	Not reported
Canada Pension Plan Investment Board	0.37%	$16.8M	0.01%	Add 1182.11%
JPMorgan Chase & Co	0.35%	$16.3M	0.00%	Not reported
Nuveen, LLC	0.35%	$15.7M	0.00%	Not reported
Healthcare of Ontario Pension Plan Trust Fund	0.33%	$15M	0.02%	Add 77.39%
Steamboat Capital Partners, LLC	0.30%	$13.6M	2.92%	Add 7.39%
Point72 Asset Management, L.P.	0.30%	$13.6M	0.01%	Not reported
Citadel Advisors LLC	0.29%	$13.3M	0.00%	Not reported
Principal Financial Group Inc	0.28%	$12.7M	0.01%	Not reported

50 of 388 holders

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