Mountain Lake Investment Management LLC
Position in BLDR — Builders FirstSource, Inc.
CIK 1308555
SAN FRANCISCO, CA
Position in BLDR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$13,231,139
+$4,616,046 QoQ
Shares Held
147,867
+41.3% QoQ
Ownership
0.137%
of shares outstanding
% of Portfolio
8.28%
of 13F equity value
Holder Rank
#103
of 662 holders
Holding Since
Dec 2023
11 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in BLDR Over Time
Shares Held
Position Value (USD)
Position in Building Products & Equipment
Industrials · as of Jun 30, 2026Mountain Lake Investment Management LLC holds $13,231,139 across 1 Building Products & Equipment name. BLDR ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BLDR |
Builders FirstSource, Inc.
This page
|
147,867 | $13,231,139 |
All Filings in BLDR
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11 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $13,231,139 | 147,867 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $8,615,093 | 104,641 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $8,636,998 | 83,944 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $9,283,142 | 76,562 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $9,468,810 | 81,145 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $6,907,182 | 55,284 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $5,197,935 | 36,367 | Shares | Sole | 2025-01-30 | |
| 2024-09-30 | $6,591,240 | 34,000 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $4,567,530 | 33,000 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $2,471,317 | 11,850 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $1,752,870 | 10,500 | Shares | Sole | 2024-02-14 | |
| No filing history on record for this holder in this stock. | ||||||