13F Insight
DOSSIER · 13F-HR · Q2 2026

STADIUM CAPITAL MANAGEMENT LLC

$21M in tracked AUM across 2 positions as of Q2 2026.

SC
CIK 0001105087 · last filed Jun 30, 2026
Total AUM
$21M
as of Q2 2026
Holdings
2
—
positions
Whale Score
63
63
tracked
Activity
—
no data
changes this Q
AI Analysis · Q2 2026

Based on the SEC 13F filing data provided for Stadium Capital Management LLC for the period ending September 30, 2025, here is a comprehensive analysis of the portfolio's composition and activity.

1. Portfolio Overview

Stadium Capital Management LLC manages a highly concentrated portfolio characterized by a low number of holdings and significant active turnover. As of the reporting date, the total portfolio value stood at $66.26 million, a sharp decrease of 39.0% from the $108.63 million re...

The portfolio currently consists of only 5 positions, indicating a conviction-based strategy rather than broad diversification. The manager has adopted a bar-bell approach to position sizing, with the top holding (Builders FirstSource) accounting for 33.45% of the portfolio, while the smallest holding (GitLab) accounts for 5.76%. The turnover for the quarter was aggressive, with the firm exiting three major positions and initiating one new large stake, resulting in a significant reshaping of the fund's exposure.

2. Key Holdings

The portfolio is dominated by three core positions that make up over 80% of the total value:

Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
BLDR
BUILDERS FIRSTSOURCE INC
$14M159K67.7%02
BC
BRUNSWICK CORP
$7M81K32.3%

Filing history

2026Q2Jun 30
$21M▼ 48.3%
2 positionsView →2026Q1Mar 31
$41M▼ 53.0%
6 positionsView →2025Q4Dec 31
$86M▲ 30.3%
6 positionsView →2025Q3Sep 30
$66M▼ 39.0%
5 positionsLocked2025Q2Jun 30
$109M▲ 19.6%
7 positionsLocked2025Q1Mar 31
$91M▼ 23.0%
8 positionsLocked2024Q4Dec 31
$118M▼ 11.2%
10 positionsLocked2024Q3Sep 30
$133M▲ 46.3%
11 positionsLocked2024Q2Jun 30
$91M▼ 27.9%
9 positionsLocked2024Q1Mar 31
$126M▲ 5.6%
9 positionsLocked2023Q4Dec 31
$119M▼ 1.3%
10 positionsLocked2023Q3Sep 30
$121M▲ 2.0%
10 positionsLocked
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