Q4 2025 · 13F-HR
Mountaineer Partners Management, LLCholdings as filed
Filed 2026-02-13 · accession 0000919574-26-000943
$178.7M
Reported value
17
Positions
2025-12-31
Period end
The Brief · Mountaineer Partners Management, LLC · Q4 2025
AI · grounded in 13F
Mountaineer Partners Management, LLC closed its position in Everus Constr Group ECG, reducing exposure by $14.56M. The fund established a new position in Sensient Technologies Corp SXT worth $11M and exited holdings in Entegris Inc ENTG and Vishay Intertechnology Inc VSH. Additionally, the manager increased its stake in D R Horton Inc DHI by 133.19%.
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| 156431108 | CENX | CENTURY ALUM CO | $23.8M | 13.3% | 608,475 | Common | SOLE |
| 443628102 | HBM | HUDBAY MINERALS INC | $15.6M | 8.74% | 787,247 | Common | SOLE |
| 01741R102 | ATI | ATI INC | $14.8M | 8.28% | 128,909 | Common | SOLE |
| 35671D857 | FCX | FREEPORT-MCMORAN INC | $13.5M | 7.57% | 266,327 | Common | SOLE |
| 013872106 | AA | ALCOA CORP | $12.9M | 7.20% | 241,994 | Common | SOLE |
| F21107101 | CSTM | CONSTELLIUM SE | $12.8M | 7.19% | 681,464 | Common | SOLE |
| 144285103 | CRS | CARPENTER TECHNOLOGY CORP | $11.6M | 6.46% | 36,690 | Common | SOLE |
| 81725T100 | SXT | SENSIENT TECHNOLOGIES CORP | $11.0M | 6.16% | 117,090 | Common | SOLE |
| 85423L103 | SARO | STANDARDAERO INC | $10.5M | 5.90% | 367,498 | Common | SOLE |
| 12008R107 | BLDR | BUILDERS FIRSTSOURCE INC | $9.7M | 5.42% | 94,091 | Common | SOLE |
| 497266106 | KEX | KIRBY CORP | $9.6M | 5.39% | 87,444 | Common | SOLE |
| 23331A109 | DHI | D R HORTON INC | $9.4M | 5.24% | 65,004 | Common | SOLE |
| L02235106 | AMBP | ARDAGH METAL PACKAGING S A | $6.0M | 3.37% | 1,469,480 | Common | SOLE |
| 65340P106 | NXE | NEXGEN ENERGY LTD | $4.9M | 2.77% | 538,042 | Common | SOLE |
| 35909R108 | ULCC | FRONTIER GROUP HLDGS INC | $4.5M | 2.51% | 953,375 | Common | SOLE |
| 798241105 | SJT | SAN JUAN BASIN RTY TR | $4.1M | 2.30% | 732,351 | Common | SOLE |
| 13321L108 | CCJ | CAMECO CORP | $3.9M | 2.17% | 42,424 | Common | SOLE |
Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.