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The Analysis of Mountaineer Partners Management, LLC's Holdings & P&L

Currently, Mountaineer Partners Management, LLC holds 16 types of securities in its portfolio with a total value $201.3M. In the most recent quarter, they have increased their positions in HMY (+666.7K shares, valued at $10.2M), SXT (+39.5K shares, valued at $3.4M), AMBP (+408.6K shares, valued at $1.7M); decreased their positions in ATI (-37.1K shares, valued at $5.4M), HBM (-81.2K shares, valued at $1.7M), FCX (-25.4K shares, valued at $1.5M); initiated new positions in HMY (+666.7K shares, valued at $10.2M).

1M P&L

+6.6M+2.97%

3M P&L

+9.8M+4.49%

HY P&L

+73.7M+47.76%

P&L figures are estimated based on reported 13F stock holdings and market price changes. They are approximations and may not reflect actual fund performance. Stock split events may also affect the accuracy of these calculations, and we cannot guarantee that all splits have been fully accounted for.

Top Holding Treemap

Top Industries by Value

1Aluminum49.5M

27.7%

2Copper29.2M

16.3%

3Metal Fabrication26.3M

14.7%

Top Industries by Stock Count

1Aluminum3 stocks

17.6%

2Metal Fabrication2 stocks

11.8%

3Uranium2 stocks

11.8%

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Stock Holdings

TickerCompany NameSharesShares △%Event DateReport DateHistory

CENX CENTURY ALUM CO584.0K shares-4.02%2026-03-312026-05-15

CSTM CONSTELLIUM SE658.5K shares-3.37%2026-03-312026-05-15

AA ALCOA CORP233.7K shares-3.43%2026-03-312026-05-15

HBM HUDBAY MINERALS INC706.0K shares-10.32%2026-03-312026-05-15

FCX FREEPORT MCMORAN INC241.0K shares-9.52%2026-03-312026-05-15

CRS CARPENTER TECHNOLOGY CORP35.9K shares-2.07%2026-03-312026-05-15

SXT SENSIENT TECHNOLOGIES CORP156.6K shares33.73%2026-03-312026-05-15

ATI ATI INC91.8K shares-28.80%2026-03-312026-05-15

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KEX KIRBY CORP89.0K shares1.80%2026-03-312026-05-15

SARO STANDARDAERO INC407.4K shares10.87%2026-03-312026-05-15

HMY HARMONY GOLD MNG LTD666.7K sharesnew addition2026-03-312026-05-15

DHI D R HORTON INC66.5K shares2.36%2026-03-312026-05-15

BLDR BUILDERS FIRSTSOURCE INC98.2K shares4.37%2026-03-312026-05-15

AMBP ARDAGH METAL PACKAGING S A1.9M shares27.81%2026-03-312026-05-15

CCJ CAMECO CORP42.4K shares0.00%2026-03-312026-05-15

ULCC FRONTIER GROUP HLDGS INC953.4K shares0.00%2026-03-312026-05-15

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CENX

CENTURY ALUM CO

-4.02%

Shares584.0K

Event2026-03-31

Filed2026-05-15

CSTM

CONSTELLIUM SE

-3.37%

Shares658.5K

Event2026-03-31

Filed2026-05-15

ALCOA CORP

-3.43%

Shares233.7K

Event2026-03-31

Filed2026-05-15

HBM

HUDBAY MINERALS INC

-10.32%

Shares706.0K

Event2026-03-31

Filed2026-05-15

FCX

FREEPORT MCMORAN INC

-9.52%

Shares241.0K

Event2026-03-31

Filed2026-05-15

CRS

CARPENTER TECHNOLOGY CORP

-2.07%

Shares35.9K

Event2026-03-31

Filed2026-05-15

SXT

SENSIENT TECHNOLOGIES CORP

33.73%

Shares156.6K

Event2026-03-31

Filed2026-05-15

ATI

ATI INC

-28.80%

Shares91.8K

Event2026-03-31

Filed2026-05-15

KEX

KIRBY CORP

1.80%

Shares89.0K

Event2026-03-31

Filed2026-05-15

SARO

STANDARDAERO INC

10.87%

Shares407.4K

Event2026-03-31

Filed2026-05-15

HMY

HARMONY GOLD MNG LTD

New

Shares666.7K

Event2026-03-31

Filed2026-05-15

DHI

D R HORTON INC

2.36%

Shares66.5K

Event2026-03-31

Filed2026-05-15

BLDR

BUILDERS FIRSTSOURCE INC

4.37%

Shares98.2K

Event2026-03-31

Filed2026-05-15

AMBP

ARDAGH METAL PACKAGING S A

27.81%

Shares1.9M

Event2026-03-31

Filed2026-05-15

CCJ

CAMECO CORP

0.00%

Shares42.4K

Event2026-03-31

Filed2026-05-15

ULCC

FRONTIER GROUP HLDGS INC

0.00%

Shares953.4K

Event2026-03-31

Filed2026-05-15

Call Option Holdings

No call option holdings data available

Put Option Holdings

No put option holdings data available