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ROCKWOOD RESEARCH · A CORPORATE FILINGS WEBSITE|STRAIGHT FROM THE SOURCE · SEC EDGAR|SPONSOREDYour message on this tape — bid on the Rockwood Ad Exchange · Rockwood Ad Exchange|
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BLDR

Builders FirstSource, Inc.

Retail-Lumber & Other Building Materials Dealers · SIC 5211CIK 1316835Held by 16 tracked managersEDGAR filings ↗10-K/10-Q ↗

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16 managers · Q2 2026 13F
Coliseum Capital Management
Coliseum Capital ManagementPosition history →
20.0%
+24.1%
Robotti & Company Advisors
Robotti & Company AdvisorsPosition history →
7.4%
(2.6%)
Semper Augustus
Christopher BloomstranPosition history →
5.6%
+142.6%
Brave Warrior Advisors
Glenn GreenbergPosition history →
4.6%
(1.3%)
Long Pond Capital
Long Pond CapitalPosition history →
2.3%
NEW
Sands Capital Management
Sands Capital ManagementPosition history →
0.76%
(12.9%)
Miller Value Partners
Bill MillerPosition history →
0.40%
+1.2%
Giverny Capital
Francois RochonPosition history →
0.28%
(0.4%)
Holocene Advisors
Holocene AdvisorsPosition history →
0.22%
+89.5%
Tweedy Browne
Tweedy BrownePosition history →
0.13%
NEW
Royce & Associates
Royce & AssociatesPosition history →
0.05%
+1.2%
Bridgewater Associates
Bridgewater AssociatesPosition history →
0.02%
+1,162.5%
Adage Capital Management
Adage Capital ManagementPosition history →
0.01%
+46.0%
Capital World Investors
Capital World InvestorsPosition history →
0.01%
+29.1%
Capital Research Global Investors
Capital Research Global InvestorsPosition history →
0.01%
NEW
First Eagle Investment Management
First EaglePosition history →
<0.01%
NEW

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.