BLDR Builders FirstSource, Inc.
Builders FirstSource, Inc. (BLDR) Institutional Ownership
What the institutions did with BLDR last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 7.8M | 7.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.9M | 6.3% |
| STATE STREET CORP | 4.8M | 4.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.2M | 3.9% |
| Capital International Investors | 3.9M | 3.6% |
| Pictet Asset Management Holding SA | 3.8M | 3.5% |
| WELLINGTON MANAGEMENT GROUP LLP | 3.5M | 3.2% |
| DIMENSIONAL FUND ADVISORS LP | 3.4M | 3.2% |
| Invesco Ltd. | 3.3M | 3.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.8M | 2.6% |
| Coliseum Capital Management, LLC | 2.6M | 2.4% |
| Brave Warrior Advisors, LLC | 2.3M | 2.2% |
| SANDS CAPITAL MANAGEMENT, LLC | 2.3M | 2.1% |
| D1 Capital Partners L.P. | 1.6M | 1.5% |
| MORGAN STANLEY | 1.6M | 1.4% |
| DIAMOND HILL CAPITAL MANAGEMENT INC | 1.5M | 1.4% |
| GOLDMAN SACHS GROUP INC | 1.4M | 1.3% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2M | 1.1% |
| Public Sector Pension Investment Board | 1.1M | 1.0% |
| Holocene Advisors, LP | 1.1M | 1.0% |
| Capital World Investors | 1.0M | 0.9% |
| BANK OF AMERICA CORP /DE/ | 936.9K | 0.9% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 915.7K | 0.8% |
| NORTHERN TRUST CORP | 898.3K | 0.8% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 891.7K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Pictet Asset Management Holding SA | Increased | 1.4M | 3.8M | +2.4M |
| D1 Capital Partners L.P. | New | 0 | 1.6M | +1.6M |
| Boston Partners | Reduced | 1.6M | 28.1K | -1.6M |
| Capital International Investors | Increased | 2.9M | 3.9M | +964.2K |
| BlackRock, Inc. | Reduced | 8.8M | 7.8M | -927.9K |
| Focus Partners Wealth | Reduced | 1.7M | 882.0K | -781.2K |
| Invesco Ltd. | Increased | 2.6M | 3.3M | +742.0K |
| AMERIPRISE FINANCIAL INC | Increased | 206.7K | 888.1K | +681.4K |
| WESTFIELD CAPITAL MANAGEMENT CO LP | New | 0 | 656.4K | +656.4K |
| Atlas FRM LLC | Increased | 77.0K | 718.0K | +641.0K |
| MARSHALL WACE, LLP | Reduced | 776.1K | 139.6K | -636.6K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 283.2K | 915.7K | +632.5K |
| Capital Research Global Investors | New | 0 | 593.7K | +593.7K |
| Point72 Asset Management, L.P. | Sold Out | 572.6K | 0 | -572.6K |
| DEUTSCHE BANK AG\ | Reduced | 1.1M | 619.1K | -515.4K |
| Coliseum Capital Management, LLC | Increased | 2.1M | 2.6M | +505.0K |
| Holocene Advisors, LP | Increased | 562.9K | 1.1M | +504.0K |
| Zurich Insurance Group Ltd/FI | Increased | 114.1K | 602.2K | +488.2K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 3.0M | 3.4M | +471.5K |
| FMR LLC | Reduced | 1.3M | 795.3K | -471.0K |
| Cercano Management LLC | Sold Out | 386.3K | 0 | -386.3K |
| Allianz Asset Management GmbH | Increased | 219.7K | 603.4K | +383.7K |
| SANDS CAPITAL MANAGEMENT, LLC | Reduced | 2.6M | 2.3M | -337.8K |
| SEMPER AUGUSTUS INVESTMENTS GROUP LLC | Increased | 228.2K | 553.7K | +325.5K |
| GOLDMAN SACHS GROUP INC | Reduced | 1.7M | 1.4M | -325.0K |
| ANCHOR CAPITAL ADVISORS LLC | Increased | 348.6K | 673.3K | +324.7K |
| NEUBERGER BERMAN GROUP LLC | Reduced | 567.3K | 244.6K | -322.7K |
| L1 Capital Pty Ltd | Increased | 292.5K | 600.3K | +307.8K |
| Apollo Management Holdings, L.P. | Sold Out | 287.6K | 0 | -287.6K |
| Qube Research & Technologies Ltd | Increased | 32.9K | 319.3K | +286.3K |
| STATE STREET CORP | Reduced | 5.1M | 4.8M | -280.3K |
| Schonfeld Strategic Advisors LLC | Sold Out | 273.7K | 0 | -273.7K |
| SAMLYN CAPITAL, LLC | Reduced | 511.4K | 249.7K | -261.6K |
| DIAMOND HILL CAPITAL MANAGEMENT INC | Reduced | 1.8M | 1.5M | -256.3K |
| Long Pond Capital, LP | New | 0 | 245.8K | +245.8K |
| Balyasny Asset Management L.P. | Sold Out | 235.5K | 0 | -235.5K |
| Verition Fund Management LLC | Sold Out | 228.4K | 0 | -228.4K |
| Capital World Investors | Increased | 779.2K | 1.0M | +226.4K |
| Legal & General Group Plc | Reduced | 442.8K | 218.5K | -224.3K |
| RENAISSANCE TECHNOLOGIES LLC | Sold Out | 220.2K | 0 | -220.2K |
| BARCLAYS PLC | Reduced | 461.7K | 243.4K | -218.3K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 571.3K | 354.5K | -216.7K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 3.7M | 3.5M | -214.2K |
| Fiera Capital Corp | Reduced | 686.9K | 473.6K | -213.3K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 515.2K | 303.5K | -211.7K |
| THOMPSON SIEGEL & WALMSLEY LLC | New | 0 | 210.2K | +210.2K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | 1.0M | 809.3K | -209.4K |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Reduced | 860.5K | 651.4K | -209.1K |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Reduced | 213.9K | 6.6K | -207.3K |
| Sumitomo Mitsui Trust Group, Inc. | Reduced | 210.0K | 5.8K | -204.2K |
| AustralianSuper Pty Ltd | Sold Out | 203.3K | 0 | -203.3K |
| Caisse de depot et placement du Quebec | Increased | 400.6K | 598.9K | +198.3K |
| JPMORGAN CHASE & CO | Increased | 316.9K | 512.2K | +195.3K |
| ROYAL BANK OF CANADA | Reduced | 551.9K | 362.7K | -189.1K |
| Assenagon Asset Management S.A. | Increased | 7.6K | 192.3K | +184.7K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 7.0M | 6.9M | -172.4K |
| CAPITAL FUND MANAGEMENT S.A. | New | 0 | 167.3K | +167.3K |
| WORLDQUANT MILLENNIUM ADVISORS LLC | Sold Out | 160.0K | 0 | -160.0K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 4.3M | 4.2M | -156.7K |
| PICTON MAHONEY ASSET MANAGEMENT | Increased | 1.0K | 157.3K | +156.3K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.