CENTURY ALUM CO

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CENX·156431108·US·Common Stock·Basic Materials - Aluminum-Activist

CENX (CENTURY ALUM CO) is held by 168 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($474.1M), STATE STREET CORP ($255M), VANGUARD PORTFOLIO MANAGEMENT LLC ($219.6M). Net institutional sentiment: Mixed.

168

Holders

(13 Elite)

$2.8B

Total Value

63% (182)

Consensus

114 buying - 68 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)74

Insider (Form 4)70

Activist (13D/13G)79

Congressional (STOCK Act)66

Holder Quality

77

★★★★★

Elite

49

★★★★

Strong

85

★★★

Solid

43

★★

Below

18

★

Weak

Held by 168 funds

13 elite

Who's Trading

Source dates: Price Aug 21, 2026 · Insiders Mar 27, 2026 · Activists Aug 7, 2026 · Congress none

ActivistSTATE STREET CORPORATION5.6%Aug 7, 2026

ActivistBlackRock, Inc.9.5%Jul 27, 2026

ActivistBlackRock, Inc.8.2%Apr 24, 2026

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Top Holders

Top Holders (168)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	10.3M(+14.4%)	$474.1M	0.0%	+102.25%	36
STATE STREET CORP	Increased	5.5M(+18.8%)	$255M	0.0%	+92.76%	36
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	4.8M(+12.6%)	$219.6M	0.0%	-15.78%	34
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	3M(+14.9%)	$136.8M	0.0%	-15.57%	35
Invesco Ltd.	Increased	2.4M(+16.4%)	$111.2M	0.0%	+3.21%	35
DIMENSIONAL FUND ADVISORS LP	Increased	2.2M(+0.9%)	$101.8M	0.0%	+305.66%	30
FMR LLC	Decreased	2M(-26.3%)	$90.2M	0.0%	-16.86%	0
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.8M(+19.9%)	$85M	0.0%	+105.26%	35
Fisher Asset Management, LLC	Increased	1.5M(+80.2%)	$70.6M	0.0%	+73.97%	45
Assenagon Asset Management S.A.	Decreased	1.5M(-16.3%)	$70.4M	0.1%	+2.90%	0
MORGAN STANLEY	Decreased	1.5M(-4.7%)	$69.5M	0.0%	+83.75%	0
MILLENNIUM MANAGEMENT LLC	Decreased	1.1M(-43.8%)	$51.4M	0.0%	+13.65%	0
GOLDMAN SACHS GROUP INC	Increased	1M(+176.8%)	$48.3M	0.0%	+11.78%	47
MAMIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	Increased	870,850(+8.8%)	$40.1M	0.0%	+120.56%	32
UBS Group AG	Increased	866,821(+47.7%)	$39.9M	0.0%	+24.39%	40
Boston Partners	Increased	854,095(+175.6%)	$39.3M	0.0%	+22.32%	47
Qube Research & Technologies Ltd	Increased	847,459(+43.6%)	$39M	0.0%	+50.73%	39
DED. E. Shaw & Co., Inc.	Decreased	795,738(-44.5%)	$36.6M	0.0%	+13.01%	0
Allspring Global Investments Holdings, LLC	Increased	827,031(+47.1%)	$35.6M	0.1%	+1.80%	40
BALYASNY ASSET MANAGEMENT L.P.	Increased	759,603(+699.0%)	$34.9M	0.0%	-6.30%	47

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer