Mountaineer Partners Management, LLC

Q2 2026 13F-HR Holdings

Location
New York, NY
Holdings as of
6/30/2026
Date filed
8/13/2026
Form type
13F-HR
Num holdings
11
Total value ($000)
$132,036
Net value change ($000)
-69,288 (-34.4%)
New positions
1
Sold out positions
6
Turnover %
55.2%
Sector allocation + QoQ delta (equities-only)
Prev filing: 5/15/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q1 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
MIDD 11,617 NEW
SARO 3,372 32.0%
SXT 2,706 20.0%
Top Reduces (Value $000, Stocks/ETFs)
HBM -14,756 -100.0%
FCX -14,164 -100.0%
KEX -11,829 -100.0%
CENX -11,118 -32.4%
DHI -9,131 -100.0%
BLDR -8,085 -100.0%
ARDAGH METAL PACKAGING S A -4,884 -64.2%
AA -4,646 -30.0%
ULCC -3,365 -100.0%
ATI -1,442 -10.8%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type