Mountaineer Partners Management, LLC Century Aluminum CO Transaction History

Mountaineer Partners Management, LLC

$129 Million
Q2 2025

A detailed history of Mountaineer Partners Management, LLC transactions in Century Aluminum CO stock. As of the latest transaction made, Mountaineer Partners Management, LLC holds 705,150 shares of CENX stock, worth $16.5 Million. This represents 9.85% of its overall portfolio holdings.

Number of Shares

705,150

Previous 639,373 10.29%

Holding current value

$16.5 Million

Previous $11.9 Million 7.08%

% of portfolio

9.85%

Previous 12.35%

14 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	BUY	$13.7 - $20.12 $901,144 - $1.32 Million	65,777 Added 10.29%	705,150 $12.7 Million
Q1 2025 May 15, 2025	SELL	$16.6 - $21.83 $140,635 - $184,943	-8,472 Reduced 1.31%	639,373 $11.9 Million
Q4 2024 Feb 13, 2025	SELL	$15.24 - $23.94 $11.6 Million - $18.2 Million	-759,986 Reduced 53.98%	647,845 $11.8 Million
Q3 2024 Nov 15, 2024	SELL	$12.01 - $20.19 $258 Million - $433 Million	-21,441,266 Reduced 93.84%	1,407,831 $22.9 Million
Q3 2024 Nov 13, 2024	BUY	$12.01 - $20.19 $258 Million - $434 Million	21,510,639 Added 1607.12%	22,849,097 $1.41 Billion
Q2 2024 Aug 14, 2024	SELL	$15.24 - $19.22 $12.2 Million - $15.4 Million	-803,645 Reduced 37.52%	1,338,458 $22.4 Million
Q1 2024 May 15, 2024	SELL	$9.97 - $15.39 $1.28 Million - $1.98 Million	-128,702 Reduced 5.67%	2,142,103 $33 Million
Q4 2023 Feb 14, 2024	BUY	$5.79 - $12.67 $1.36 Million - $2.98 Million	234,937 Added 11.54%	2,270,805 $27.6 Million
Q3 2023 Nov 14, 2023	BUY	$6.5 - $9.3 $250,412 - $358,282	38,525 Added 1.93%	2,035,868 $14.6 Million
Q2 2023 Aug 11, 2023	BUY	$7.2 - $10.08 $6.44 Million - $9.01 Million	894,142 Added 81.05%	1,997,343 $17.4 Million
Q1 2023 May 12, 2023	BUY	$8.1 - $12.9 $8.94 Million - $14.2 Million	1,103,201 New	1,103,201 $11 Million
Q2 2022 Aug 15, 2022	SELL	$7.11 - $27.55 $3.89 Million - $15.1 Million	-546,641 Closed	0 $0
Q1 2022 May 16, 2022	SELL	$15.34 - $29.49 $2.36 Million - $4.53 Million	-153,614 Reduced 21.94%	546,641 $14.4 Million
Q4 2021 Feb 14, 2022	BUY	$12.87 - $17.41 $9.01 Million - $12.2 Million	700,255 New	700,255 $11.6 Million

Others Institutions Holding CENX

# of Institutions

251

Shares Held

55.4M

Call Options Held

3.14M

Put Options Held

1.76M

View Full List

About CENTURY ALUMINUM CO

Ticker CENX
Exchange NASDAQ
Sector Basic Materials
Industry Aluminum
Shares Outstandng 91,358,096
Market Cap $2.14B
Description
Century Aluminum Company, together with its subsidiaries, produces standard-grade and value-added primary aluminum products in the United States and Iceland. It also owns and operates a carbon anode production facility in the Netherlands. The company was incorporated in 1981 and is headquartered in Chicago, Illinois.

More about CENX

Track This Portfolio

Portfolio Update

Get notified when there are updates to the investment portfolio of Mountaineer Partners Management, LLC, based on Form 13F filings with the SEC.

News

Stay updated on Mountaineer Partners Management, LLC with notifications on news.

Account

Mountaineer Partners Management, LLC Century Aluminum CO Transaction History