☆Mountaineer Partners Management, LLC
Quality Q
0.000
AUM ($M)
5
Positions
1
Turnover
0.96
Top-10 wt
100%
Herfindahl
1.000
History (qtrs)
6
Excess Return
not eligible
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Holdings · 17 positions · portfolio value $132M
| Ticker | Name | Activity | Security Type | Weight | Δ Weight | Value ($M) | Shares | Δ Shares | Qtrs Held | Excess Return |
|---|---|---|---|---|---|---|---|---|---|---|
| ☆CENX funds › | CENTURY ALUM CO | TRIM | — | 17.5% | +0.5% | 23.2 | 503,309 | -80,688 | 5 | — |
| ☆SXT funds › | SENSIENT TECHNOLOGIES CORP | TRIM | — | 12.3% | +5.6% | 16.2 | 131,727 | -24,857 | 3 | — |
| ☆CSTM funds › | CONSTELLIUM SE | TRIM | — | 11.6% | +3.6% | 15.4 | 482,130 | -176,360 | 5 | — |
| ☆SARO funds › | STANDARDAERO INC | ADD | — | 10.5% | +5.3% | 13.9 | 464,595 | +57,160 | 5 | — |
| ☆CRS funds › | CARPENTER TECHNOLOGY CORP | TRIM | — | 9.8% | +2.7% | 12.9 | 20,894 | -15,035 | 5 | — |
| ☆ATI funds › | ATI INC | TRIM | — | 9.0% | +2.4% | 11.9 | 60,419 | -31,365 | 5 | — |
| ☆MIDD funds › | MIDDLEBY CORP | NEW | — | 8.8% | +8.8% | 11.6 | 67,536 | +67,536 | 1 | — |
| ☆AA funds › | ALCOA CORP | TRIM | — | 8.2% | +0.5% | 10.9 | 208,165 | -25,522 | 5 | — |
| ☆HMY funds › | HARMONY GOLD MNG LTD | TRIM | — | 7.1% | +2.0% | 9.3 | 612,949 | -53,786 | 2 | — |
| ☆CCJ funds › | CAMECO CORP | TRIM | — | 3.1% | +0.8% | 4.1 | 39,903 | -2,521 | 3 | — |
| ☆AMBP funds › | ARDAGH METAL PACKAGING S A | TRIM | — | 2.1% | -1.7% | 2.7 | 574,207 | -1,303,875 | 5 | — |
| ☆HBM funds › | HUDBAY MINERALS INC | EXIT | — | 0.0% | -7.3% | 0.0 | 0 | -706,040 | 0 | — |
| ☆BLDR funds › | BUILDERS FIRSTSOURCE INC | EXIT | — | 0.0% | -4.0% | 0.0 | 0 | -98,203 | 0 | — |
| ☆CUSIP:497266106 funds › | KIRBY CORP | EXIT | — | 0.0% | -5.9% | 0.0 | 0 | -89,017 | 0 | — |
| ☆DHI funds › | D R HORTON INC | EXIT | — | 0.0% | -4.5% | 0.0 | 0 | -66,541 | 0 | — |
| ☆FCX funds › | FREEPORT MCMORAN INC | EXIT | — | 0.0% | -7.0% | 0.0 | 0 | -240,973 | 0 | — |
| ☆ULCC funds › | FRONTIER GROUP HLDGS INC | EXIT | — | 0.0% | -1.7% | 0.0 | 0 | -953,375 | 0 | — |
Point-in-time history
| Period | AUM ($M) | Positions | Turnover | Top-10 wt | Herfindahl | Quality Q | Skill | Universe |
|---|---|---|---|---|---|---|---|---|
| 2026Q2 | 132 | 11 | 0.32 | 98% | 0.109 | 0.302 | — | in |
| 2026Q1 | 201 | 16 | 0.12 | 79% | 0.080 | 0.591 | — | in |
| 2025Q4 | 179 | 17 | 0.25 | 76% | 0.072 | 0.255 | — | in |
| 2025Q3 | 172 | 18 | 0.09 | 74% | 0.066 | 0.539 | — | in |
| 2025Q2 | 151 | 16 | 0.23 | 75% | 0.068 | 0.297 | — | entered |
| 2025Q1 | 105 | 14 | 0.00 | 85% | 0.081 | 0.000 | — | out |
Long US-equity 13F disclosures only · up to 45-day reporting lag · sells = reduce/avoid, not short.
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