What is the 13F Pro Quality Score for CENX?

13F Pro ranks CENTURY ALUMINUM CO (CENX) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View CENX's current score at https://13fpro.ai/company/CENX (free sign-up required for the full ranking).

Which hedge funds own the most CENX stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of CENX include Glencore plc, BlackRock,, STATE STREET. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/company/CENX as soon as new 13F filings post.

Where does 13F Pro source CENX data?

All CENTURY ALUMINUM CO fundamentals and ownership data come directly from SEC EDGAR. CENTURY ALUMINUM CO files with the SEC under CIK 949157. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is CENX in?

CENTURY ALUMINUM CO (CENX) is classified in the Materials sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/materials.

What drives CENX's revenue?

Per CENTURY ALUMINUM CO's latest 10-Q filed with the SEC on 2026-08-06, the biggest revenue drivers are: Aluminum ($701.9M); Alumina ($50.2M, -16% QoQ). Figures are extracted from the filing text and machine-verified against the document. Full breakdown at https://13fpro.ai/company/CENX.

What are CENX's largest expenses?

CENTURY ALUMINUM CO's latest 10-Q reports these as the largest expense items: Cost of goods sold ($524.2M); Selling, general and administrative expenses ($15.9M, -38% QoQ). Sourced directly from SEC EDGAR filing text for Q2 FY2026 (quarter ended June 30, 2026).

How often is CENX research updated on 13F Pro?

CENX's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

CENTURY ALUMINUM CO(CENX)Stock Analysis

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SEC EDGAR: CIK 949157 CENX stock profile & AI dashboard →

13F Pro Quality Score

63.3/100

Rank #642 of 2,961 stocksTOP 25%

View Materials peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Nov 14, 2026.

Revenue Growth

62.3/100

Profitability

86.4/100

Balance Sheet

97.5/100

Earnings Quality

27.4/100

Free Cash Flow

44.5/100

Institutional Flow

39.8/100

Revenue Scale

67.6/100

Dilution Risk

41.4/100

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Why CENX Scores 63/100

exact factor attribution · 2026-09-11

CENX's composite is driven by profitability and capital efficiency, held back by earnings quality. Bars show each factor's exact push vs. a median company, using the same weights the ranking engine applies.

Profitability

+5.5 pts

86th pct

Capital efficiency

+4.8 pts

98th pct

Scale

+2.6 pts

68th pct

Revenue growth

+2.5 pts

62th pct

Earnings growth

+2.0 pts

91th pct

Shareholder dilution

-0.4 pts

41th pct

Institutional flow

-0.5 pts

40th pct

Free cash flow

-0.8 pts

45th pct

Earnings quality

-2.3 pts

27th pct

Latest change (2026-08-06): 67 → 47 · ↓ Profit margin 83→34; ↓ Capital efficiency 95→47

Factor percentiles are cross-sectional ranks across the ~2,800-stock scored universe, computed from SEC EDGAR filings. Not investment advice.

Unusual Activity in CENX

Events flagged as statistical outliers against CENX's own multi-year baseline — not fixed dollar thresholds.

Score shock2026-08-06
CENX quality score dropped 20 points (67→47) on a new filing
View source filing →

CENX Stock Analysis & AI Quality Score

Data updated 2026-09-11

AI stock analysis and institutional research for CENTURY ALUMINUM CO (CENX), a Materials sector company. 13F Pro's AI-powered ranking engine scores CENX at 63.3/100 on a 32-signal composite quality model, placing it at rank #642 of 2,961 stocks — the top 25% of the AI-ranked universe. CENX scores in the top quartile across balance sheet strength (97.5), profitability (86.4). Areas of concern include earnings quality (27.4) and institutional flow (39.8), which score below median versus the broader universe. Shareholder dilution risk is elevated at 41.4/100, reflecting ongoing share issuance or stock-based compensation. Based on the latest XBRL financial filings (Q2 2026), CENTURY ALUMINUM CO reports quarterly revenue of $752.1M, net income of $249.3M, an operating margin of 28.1%. Top institutional holders of CENX by reported 13-F value include Glencore plc, BlackRock, STATE STREET, based on the most recent SEC filings. CENX trades on the Nasdaq exchange and files with the SEC under CIK 949157. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate CENX daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for CENTURY ALUMINUM CO directly from SEC EDGAR. CENTURY ALUMINUM CO's 13F Pro composite quality score has ranged between 27 and 64 since 2021, currently 63.3 — an improving long-term trajectory across 68 quarterly and live scoring snapshots.

What's Driving CENX's Business? Latest 10-Q Breakdown

✓ 28/28 datapoints verified

AI-extracted from CENTURY ALUMINUM CO's 10-Q filed 2026-08-06 — Q2 FY2026 (quarter ended June 30, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.

Century Aluminum's Q2 2026 net sales rose 20% sequentially to $752.1M as higher LME/MWP prices and restarted production drove gross profit up to $227.9M, with net income boosted further by a $40.1M insurance gain.

Biggest Revenue Drivers

Aluminum$701.9M

Sales priced on LME plus Midwest/EDPP regional premiums and value-added product premiums; benefited from higher LME/MWP and restarted production at Mt. Holly and Grundartangi

Alumina$50.2M-16% QoQ

Decrease in third-party alumina sales contributed to lower net sales versus Q1 2026

Biggest Revenue Drivers

Total revenue: $752.1M+20% QoQ

Aluminum$701.9M

Sales priced on LME plus Midwest/EDPP regional premiums and value-added product premiums; benefited from higher LME/MWP and restarted production at Mt. Holly and Grundartangi

Alumina$50.2M-16% QoQ

Decrease in third-party alumina sales contributed to lower net sales versus Q1 2026

Largest Expense Items

Cost of goods sold$524.2M

Higher operating costs from increased production at Mt. Holly and Grundartangi, partly offset by favorable power price realization from improved U.S. weather

Selling, general and administrative expenses$15.9M-38% QoQ

Decreased share-based compensation on lower share price and reduced professional fees tied to the Hawesville sale, which closed in Q1 2026

Margins: Gross profit rose $109.1M sequentially to $227.9M, driven by higher LME and regional price premiums ($80.5M), favorable power price realization ($34.3M) from improved U.S. weather, and higher volume/mix from restarted production, partly offset by higher operating costs ($37.2M).

Watch Items from the Filing

Glencore, a 30% shareholder, accounted for approximately 44.0% of consolidated net sales in Q2 2026, down from 58.5% a year earlier.
Management concluded disclosure controls were not effective as of June 30, 2026, due to an unremediated material weakness in internal controls over the Jamalco joint venture consolidation.
Grundartangi's second potline remained impaired following an October 2025 transformer failure, cutting facility output by about two-thirds before a partial restart in April 2026; near-full production is expected by Q3 2026 end.
Section 232 tariffs on imported aluminum rose from 25% to 50% effective June 4, 2025, pushing the Midwest premium to historically high levels, which management says had a material positive impact on results.
Sale of the Hawesville facility for $200M cash plus a 6.8% minority stake in a Terawulf data-center JV generated a $287.9M gain in Q1 2026; Terawulf has since signed a 20-year, ~401MW lease with Anthropic PBC for the site.

AI-extracted and verified against SEC EDGAR filing text. Not investment advice.

Read the full 10-Q on SEC EDGAR →Share on X

Revenue

Q2 2026

$752.1M

Net Income

Q2 2026

$249.3M

Free Cash Flow

Q2 2026

$108.0M

Operating Margin

Q2 2026

28.1%

ROIC

Q2 2026

45.0%

D/E Ratio

Q2 2026

0.34

Period

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro

Revenue

+13.9% YoY

$2.53BFY 2025

FY22 $2.78BFY23 $2.19BFY24 $2.22BFY25 $2.53B

Net Income

-87.6% YoY

$41.8MFY 2025

FY22 $-14.1MFY23 $-43.1MFY24 $336.8MFY25 $41.8M

Operating Income

+45.8% YoY

$158.1MFY 2025

FY22 $-150.2MFY23 $27.5MFY24 $108.4MFY25 $158.1M

EPS (Diluted)

-87.2% YoY

$0.42FY 2025

FY22 $-0.15FY23 $-0.47FY24 $3.27FY25 $0.42

Total Assets

+17.0% YoY

$2.27BFY 2025

FY22 $1.47BFY23 $1.85BFY24 $1.94BFY25 $2.27B

Total Debt

+3.8% YoY

$548.3MFY 2025

FY22 $527.7MFY23 $479.2MFY24 $528.2MFY25 $548.3M

Op. Cash Flow

+852.0% YoY

$185.0MFY 2025

FY22 $25.9MFY23 $105.6MFY24 $-24.6MFY25 $185.0M

Free Cash Flow

+179.3% YoY

$84.8MFY 2025

FY22 $-60.4MFY23 $10.6MFY24 $-106.9MFY25 $84.8M

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$2.53B +13.9%	$2.22B +1.6%	$2.19B -21.3%	$2.78B +25.5%	$2.21B +37.8%	$1.61B
Net Income	$41.8M -87.6%	$336.8M +881.4%	$-43.1M -205.7%	$-14.1M +91.6%	$-167.1M -35.5%	$-123.3M
Operating Income	$158.1M +45.8%	$108.4M +294.2%	$27.5M +118.3%	$-150.2M -327.6%	$66.0M +182.0%	$-80.5M
EPS (Diluted)	$0.42 -87.2%	$3.27 +795.7%	$-0.47 -213.3%	$-0.15 +91.9%	$-1.85 -34.1%	$-1.38
Total Assets	$2.27B +17.0%	$1.94B +5.0%	$1.85B +25.4%	$1.47B -6.2%	$1.57B +12.2%	$1.40B
Total Debt	$548.3M +3.8%	$528.2M +10.2%	$479.2M -9.2%	$527.7M +17.0%	$451.2M +42.8%	$315.9M
Operating Cash Flow	$185.0M +852.0%	$-24.6M -123.3%	$105.6M +307.7%	$25.9M +140.0%	$-64.7M -250.8%	$42.9M
Free Cash Flow	$84.8M +179.3%	$-106.9M -1108.5%	$10.6M +117.5%	$-60.4M +59.1%	$-147.7M -600.7%	$29.5M

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Available Research

13F Pro tracks comprehensive data for CENTURY ALUMINUM CO including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of CENX

Glencore plc
$1.4B29,690,702 sh
BlackRock, Inc.
$474.1M10,304,905 sh
STATE STREET CORP
$255.0M5,542,720 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$219.6M4,773,720 sh
VANGUARD CAPITAL MANAGEMENT LLC
$136.8M2,972,532 sh
Invesco Ltd.
$111.2M2,417,794 sh
Sourcerock Group LLC
$104.3M2,266,085 sh
DIMENSIONAL FUND ADVISORS LP
$101.8M2,211,502 sh
FMR LLC
$90.2M1,960,353 sh
Context Capital Management, LLC
$86.0M34,817,000 sh

Fund	Value	Shares
Glencore plc	$1.4B	29,690,702
BlackRock, Inc.	$474.1M	10,304,905
STATE STREET CORP	$255.0M	5,542,720
VANGUARD PORTFOLIO MANAGEMENT LLC	$219.6M	4,773,720
VANGUARD CAPITAL MANAGEMENT LLC	$136.8M	2,972,532
Invesco Ltd.	$111.2M	2,417,794
Sourcerock Group LLC	$104.3M	2,266,085
DIMENSIONAL FUND ADVISORS LP	$101.8M	2,211,502
FMR LLC	$90.2M	1,960,353
Context Capital Management, LLC	$86.0M	34,817,000

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Is CENX a good stock to buy?

13F Pro's AI-powered analysis of CENTURY ALUMINUM CO (CENX) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Materials sector (listed on Nasdaq). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for CENX are available on the CENX stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing. CENX is classified as a mid company.

Which hedge funds own CENX?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling CENX. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of CENTURY ALUMINUM CO's investment landscape.