AI Portfolio Summary
In 2025 Q4, Mountaineer Partners Management, LLC maintained a portfolio of 21 distinct positions. The most significant new addition to the portfolio was SENSIENT TECHNOLOGIE, which now represents 6.16% of the total fund value. Conversely, Mountaineer Partners Management, LLC completely exited their position in EVERUS CONSTR GROUP.
Total Positions
21
Quarter
2025 Q4
Top Holding
CENX (13.3%)
Top 10 Concentration
76.2%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
1-21 of 21
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
CENX
CENTURY ALUM CO
|
Basic Materials | 13.34% | 11.29% |
#1
Prev: #1
|
6.5 | -52,568 | -8.0% |
P
S
|
608,475 | $23,840,050 | 2021 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
HBM
HUDBAY MINERALS...
|
Basic Materials | 8.74% | 8.42% |
#2
1
Prev: #3
|
5.5 | -168,172 | -17.6% |
P
S
|
787,247 | $15,626,853 | 2023 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ATI
ATI INC
|
Industrials | 8.28% | 6.81% |
#3
2
Prev: #5
|
4.8 | -15,111 | -10.5% |
P
S
|
128,909 | $14,793,597 | 2018 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
FCX
FREEPORT-MCMORA...
|
Basic Materials | 7.57% | 6.71% |
#4
2
Prev: #6
|
4.0 | -27,722 | -9.4% |
P
S
|
266,327 | $13,526,749 | 2022 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
AA
ALCOA CORP
|
Basic Materials | 7.20% | 5.67% |
#5
5
Prev: #10
|
3.9 | -54,648 | -18.4% |
P
S
|
241,994 | $12,859,561 | 2022 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CSTM
CONSTELLIUM SE
|
Basic Materials | 7.19% | 7.22% |
#6
2
Prev: #4
|
3.4 | -152,312 | -18.3% |
P
S
|
681,464 | $12,845,596 | 2019 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CRS
CARPENTER TECHN...
|
Industrials | 6.46% | 5.83% |
#7
2
Prev: #9
|
3.1 | -4,159 | -10.2% |
P
S
|
36,690 | $11,551,480 | 2025 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SXT
SENSIENT TECHNO...
|
Basic Materials | 6.16% | — |
#8
Prev: #—
|
6.0 | 117,090 | no change |
NEW
|
117,090 | $11,000,605 | 2025 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SARO
STANDARDAERO IN...
|
Industrials | 5.90% | 4.61% |
#9
2
Prev: #11
|
4.9 | 76,768 | 26.4% |
P
S
|
367,498 | $10,539,843 | 2025 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
BLDR
BUILDERS FIRSTS...
|
Industrials | 5.42% | 4.28% |
#10
2
Prev: #12
|
5.2 | 33,332 | 54.9% |
P
S
|
94,091 | $9,681,023 | 2018 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
KEX
KIRBY CORP
|
Industrials | 5.39% | 3.18% |
#11
3
Prev: #14
|
4.7 | 22,013 | 33.6% |
P
S
|
87,444 | $9,634,580 | 2021 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
DHI
D R HORTON INC
|
Consumer Cyclical | 5.24% | 2.75% |
#12
4
Prev: #16
|
5.1 | 37,128 | 133.2% |
P
S
|
65,004 | $9,362,526 | 2020 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
AMBP
ARDAGH METAL PA...
|
Consumer Cyclical | 3.37% | 3.57% |
#13
Prev: #13
|
1.8 | -69,004 | -4.5% |
P
S
|
1,469,480 | $6,024,868 | 2021 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NXE
NEXGEN ENERGY L...
|
Energy | 2.77% | 2.94% |
#14
1
Prev: #15
|
1.6 | -26,465 | -4.7% |
P
S
|
538,042 | $4,949,986 | 2021 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ULCC
FRONTIER GROUP ...
|
Industrials | 2.51% | — |
#15
Prev: #—
|
4.5 | 953,375 | no change |
NEW
|
953,375 | $4,490,397 | 2025 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SJT
SAN JUAN BASIN ...
|
Bond/Debt | 2.30% | 2.53% |
#16
1
Prev: #17
|
1.4 | 13,297 | 1.8% |
P
S
|
732,351 | $4,115,813 | 2024 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CCJ
CAMECO CORP
|
Energy | 2.17% | — |
#17
Prev: #—
|
4.4 | 42,424 | no change |
NEW
|
42,424 | $3,881,371 | 2025 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ECG
EVERUS CONSTR G...
|
Industrials | 0.00% | 8.47% |
Sold All 😨
(Was: #2) |
0.0 | -169,844 | -100.0% |
CLOSED
|
— | $— | 2024 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ENTG
ENTEGRIS INC
|
Technology | 0.00% | 6.63% |
Sold All 😨
(Was: #7) |
0.0 | -123,234 | -100.0% |
CLOSED
|
— | $— | 2023 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
VSH
VISHAY INTERTEC...
|
Technology | 0.00% | 6.60% |
Sold All 😨
(Was: #8) |
0.0 | -742,177 | -100.0% |
CLOSED
|
— | $— | 2018 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
UEC
URANIUM ENERGY ...
|
Energy | 0.00% | 2.49% |
Sold All 😨
(Was: #18) |
0.0 | -320,952 | -100.0% |
CLOSED
|
— | $— | 2025 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) |
Showing 1-21 of 21 holdings