Mountaineer Partners Management, LLC
•CIK: 1730532•Filing: Q4 2025
Mountaineer Partners Management, LLC manages $179M across a concentrated portfolio of 17 positions. The fund exhibits significant conviction in its top holdings, notably allocating $23.8M to CENX and $15.6M to HBM. Further substantial exposure is maintained in ATD ($14.8M), FCX ($13.5M), and AA ($12.9M). This structure suggests a focused, high-conviction approach across diverse sectors.
Total AUM
$178.7M
QoQ Performance
+3.9%
Positions
17
Top 10 Concentration
76.2%
Latest Filing
Q4 2025
Top Holdings Allocation
CENX
HBM
ATI
FCX
AA
CSTM
CRS
SSF
CENX13.3%
HBM8.7%
ATI8.3%
FCX7.6%
AA7.2%
CSTM7.2%
CRS6.5%
SSF6.2%
📈 Biggest Buys
📉 Biggest Sells
Sector Breakdown
Other92.4%
Materials7.6%
🚪 Exited Positionssold since Q3 2025
Changes from Q3 2025
NEW3 new positions
↑5 increased
↓9 decreased
Historical Filings
Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023Q2 2023Q1 2023Q4 2022