WAVEMAN · COMPANY

CENX · Century Aluminum Co

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TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475

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CENX

Name: CENTURY ALUMINUM CO (CENX) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

CENTURY ALUMINUM CO

MINING & METALS · PRIMARY PRODUCTION OF ALUMINUM · CIK 0000949157

SEC FILINGS☆ WATCH

INSIDER NET · 180D

-$10.8M

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

264

13F, latest reported quarter

REVENUE GROWTH

+13.9%

XBRL, annual

NET MARGIN

1.7%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net -$10.8M over 180 days

below 87% of Mining & Metals

CONGRESS

no member of Congress has reported trading it

FUNDS

264 funds added or opened last quarter

more than 85% of Mining & Metals

REVENUE

+13.9% year over year

more than 67% of Mining & Metals

MARGIN

1.7% net margin

below 52% of Mining & Metals

BUYBACKS

no share repurchases reported

SHORT

10.0% of shares outstanding short · 5.7 days to cover · settled 2026-07-31

more than 93% of Mining & Metals

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Insiders are net sellers: -$10.8M across 4 people in 180 days.

264 funds added or opened positions in the latest 13F quarter, of 417 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +119.0%

+119.0%12M

INSIDER SELL

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

The complete filing record, in one place.

The record shows a net $10.8M sold by insiders over 180 days, 264 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

MP TG NUE NEM GLW IE HYMC LCGMF UUUU CRS ATI LEU

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, CENTURY ALUMINUM CO insiders sold a net $10.8M of stock across 35 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER

FILED

VALUE

Trpkovski Peter A

EVP, CFO

SELL

2026-03-25

16,739.0

$845.5K

Gary Jesse E

President and CEO

SELL

2026-03-16

150,000.0

$8.3M

Calloway Kenneth L

SVP, Human Resources

SELL

2026-03-12

18,000.0

$1.0M

Hoffman Robert F

SVP, IT and CAO

SELL

2026-03-11

10,529.0

$595.0K

Hoffman Robert F

SVP, IT and CAO

SELL

2026-03-04

10,000.0

$563.3K

35 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 30 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

Glencore plc

29,690,702.0 sh

$1.4B

BlackRock, Inc.

10,304,905.0 sh

$474.1M

STATE STREET CORP

5,542,720.0 sh

$255.0M

VANGUARD PORTFOLIO MANAGEMENT LLC

4,773,720.0 sh

$219.6M

Assenagon Asset Management S.A.

3,062,334.0 sh

$140.9M

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

ICON EQUITY FUND

$2.8M POSITION · AS OF 2026-03-31

6.0%

ICON Natural Resources and Infrastructure Fund

$7.3M POSITION · AS OF 2026-03-31

5.4%

State Street(R) SPDR(R) S&P(R) Metals & Mining ETF

$146.5M POSITION · AS OF 2026-03-31

3.3%

Invesco S&P SmallCap Materials ETF

$562.4K POSITION · AS OF 2026-02-28

3.0%

Allspring SMID Core ETF

$1.4M POSITION · AS OF 2026-03-31

2.6%

Invesco Dorsey Wright Basic Materials Momentum ETF

$2.6M POSITION · AS OF 2026-04-30

2.6%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$2.5B	$2.2B	$2.2B	$2.8B
GROSS PROFIT	$256.4M	$172.0M	$87.6M	$46.7M
OPERATING INCOME	$158.1M	$108.4M	$27.5M	$-150.2M
NET INCOME	$40.0M	$319.0M	$-43.0M	$-14.0M
EPS (DILUTED)	0.42	3.27	-0.47	-0.15
OPERATING CASH FLOW	$185.0M	$-24.6M	$105.6M	$25.9M
CASH	$134.2M	$32.9M	$88.8M	$54.3M
LONG-TERM DEBT	—	—	$430.9M	$381.6M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE