Builders FirstSource, Inc.
BLDR- Exchange
- NYSE
- Industry
- Retail-Lumber & Other Building Materials Dealers
- SEC CIK
- 0001316835
No open-market purchases or sales by Builders FirstSource, Inc. insiders were filed in the last 90 days; 671 institutions reported holding it in 13F filings for Q2 2026, worth $9.63B in total; 3 superinvestors hold it, including D1 Capital Partners and Semper Augustus.
13F holders, Q1 2026
Institutional positions in Builders FirstSource, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 726
- −28 vs. Q4 2025
- Shares held
- 106.1M
- +14.5M (+15.8%) vs. Q4 2025
- Total value
- $8.74B
- −$698.3M (−7.4%) vs. Q4 2025
- New holders
- 105
- 277 more added
- Sold out
- 133
- 241 more reduced
14 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting BLDR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 671 | $9.63B |
| Q1 2026 | 726 | $8.74B |
| Q4 2025 | 768 | $10.8B |
| Q3 2025 | 778 | $13.6B |
| Q2 2025 | 776 | $12.7B |
| Q1 2025 | 786 | $13.7B |
| Q4 2024 | 819 | $15.6B |
| Q3 2024 | 832 | $21.4B |
| Q2 2024 | 776 | $15.1B |
| Q1 2024 | 859 | $23.4B |
| Q4 2023 | 745 | $19.3B |
| Q3 2023 | 675 | $14.6B |
| Q2 2023 | 662 | $16.1B |
| Q1 2023 | 544 | $11.5B |
| Q4 2022 | 518 | $9.03B |
| Q3 2022 | 490 | $8.81B |
| Q2 2022 | 491 | $8.58B |
| Q1 2022 | 509 | $11.1B |
| Q4 2021 | 494 | $15.0B |
| Q3 2021 | 404 | $10.5B |
| Q2 2021 | 403 | $8.75B |
| Q1 2021 | 380 | $9.58B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Builders FirstSource, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Sowell Financial Services LLC | 2,636 | $217.0K | 0.01% | −763−22.4% | Reduced |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 2,656 | $218.7K | 0.00% | −7,172−73.0% | Reduced |
| Cambria Investment Management, L.P. | 2,671 | $219.9K | 0.01% | +2,671 | New |
| Larson Financial Group LLC | 2,696 | $222.0K | 0.01% | −451−14.3% | Reduced |
| Washington Trust Co | 2,702 | $222.5K | 0.01% | −132−4.7% | Reduced |
| Integrated Wealth Concepts LLC | 2,728 | $224.6K | 0.00% | +2,728 | New |
| Skopos Labs, Inc. | 2,736 | $225.3K | 0.01% | +2,736 | New |
| SFMG, LLC | 2,753 | $226.7K | 0.02% | 00.0% | Unchanged |
| Bennett Selby Investments LP | 2,756 | $226.9K | 0.08% | −160−5.5% | Reduced |
| Wedbush Securities Inc | 2,780 | $229.0K | 0.01% | +144+5.5% | Added |
| Applied Finance Capital Management, LLC | 2,805 | $230.9K | 0.02% | +75+2.7% | Added |
| Cheviot Value Management, LLC | 2,825 | $232.6K | 0.02% | +150+5.6% | Added |
| Cornerstone Investment Partners, LLC | 2,833 | $233.2K | 0.01% | +2,833 | New |
| Cidel Asset Management Inc | 2,841 | $233.9K | 0.01% | +708+33.2% | Added |
| Kentucky Retirement Systems Insurance Trust Fund | 2,855 | $235.1K | 0.02% | 00.0% | Unchanged |
| Private Advisor Group, LLC | 2,890 | $237.9K | 0.00% | +162+5.9% | Added |
| Artisan Partners Limited Partnership | 2,920 | $240.4K | 0.00% | +20+0.7% | Added |
| Squarepoint Ops LLC | 2,940 | $242.1K | 0.00% | −18,033−86.0% | Reduced |
| Northbridge Financial Group, LLC | 2,781 | $243.4K | 0.10% | −290−9.4% | Reduced |
| Securian Asset Management, Inc | 2,968 | $244.4K | 0.01% | 00.0% | Unchanged |
| MUFG Securities Americas Inc. | 3,060 | $251.9K | 0.02% | +81+2.7% | Added |
| Royal London Asset Management Ltd | 3,095 | $254.8K | 0.00% | −50,770−94.3% | Reduced |
| Guyasuta Investment Advisors Inc | 3,122 | $257.0K | 0.01% | 00.0% | Unchanged |
| Asahi Life Asset Management Co., Ltd. | 3,125 | $257.3K | 0.17% | +3,125 | New |
| American Trust | 3,138 | $258.4K | 0.02% | +197+6.7% | Added |
| North Dakota State Investment Board | 3,172 | $261.2K | 0.01% | −560−15.0% | Reduced |
| V-Square Quantitative Management LLC | 3,178 | $261.6K | 0.03% | +670+26.7% | Added |
| Metis Global Partners, LLC | 3,186 | $262.3K | 0.01% | −338−9.6% | Reduced |
| Penserra Capital Management LLC | 3,223 | $264.0K | 0.00% | +70+2.2% | Added |
| Calamos Advisors LLC | 3,209 | $264.2K | 0.00% | +3,209 | New |
| Calamos Wealth Management LLC | 3,209 | $264.2K | 0.01% | +3,209 | New |
| Sequoia Financial Advisors, LLC | 3,228 | $265.8K | 0.00% | −2,638−45.0% | Reduced |
| QRG Capital Management, Inc. | 3,244 | $267.1K | 0.00% | −33−1.0% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 3,249 | $267.5K | 0.00% | 00.0% | Unchanged |
| Horizon Investments, LLC | 3,281 | $270.1K | 0.00% | +772+30.8% | Added |
| Kestra Advisory Services, LLC | 3,285 | $270.5K | 0.00% | −586−15.1% | Reduced |
| Wexford Capital LP | 3,300 | $271.7K | 0.04% | +2,000+153.8% | Added |
| World Equity Group, Inc. | 3,308 | $272.3K | 0.07% | +3,308 | New |
| Banque Cantonale Vaudoise | 3,316 | $273.0K | 0.01% | +3,316 | New |
| Ifrah Financial Services, Inc. | 3,351 | $275.9K | 0.07% | −115−3.3% | Reduced |
| Patton Fund Management, Inc. | 3,363 | $276.9K | 0.05% | +3,363 | New |
| State of Wyoming | 3,368 | $277.3K | 0.03% | −2,650−44.0% | Reduced |
| Jump Financial, LLC | 3,392 | $279.3K | 0.00% | −6,896−67.0% | Reduced |
| Ofi Invest Asset Management | 3,401 | $280.0K | 0.00% | +1,973+138.2% | Added |
| Atlas Capital Advisors LLC | 3,419 | $281.5K | 0.03% | −1,837−35.0% | Reduced |
| N.E.W. Advisory Services LLC | 3,432 | $282.6K | 0.02% | 00.0% | Unchanged |
| Triton Wealth Management, PLLC | 3,448 | $283.1K | 0.11% | −570−14.2% | Reduced |
| Deseret Mutual Benefit Administrators | 3,446 | $283.7K | 0.10% | +1,940+128.8% | Added |
| Vestmark Advisory Solutions, Inc. | 3,474 | $286.0K | 0.00% | +1,200+52.8% | Added |
| Medallion Wealth Advisors, LLC | 3,498 | $288.0K | 0.09% | 00.0% | Unchanged |
| Northwestern Mutual Investment Management Company, LLC | 3,538 | $291.3K | 0.00% | +4+0.1% | Added |
| Lido Advisors, LLC | 3,542 | $291.7K | 0.00% | −4,736−57.2% | Reduced |
| Jacobs Levy Equity Management, Inc | 3,550 | $292.3K | 0.00% | −36,968−91.2% | Reduced |
| Cullen/Frost Bankers, Inc. | 3,557 | $292.8K | 0.00% | −40,134−91.9% | Reduced |
| Neo Ivy Capital Management | 3,593 | $295.8K | 0.08% | +3,593 | New |
| Sterling Capital Management LLC | 3,640 | $299.7K | 0.01% | −2,792−43.4% | Reduced |
| Ring Mountain Capital, LLC | 3,642 | $300.0K | 0.16% | −70−1.9% | Reduced |
| AlphaGrep UK Ltd | 3,666 | $301.8K | 0.09% | +3,666 | New |
| Oslo Pensjonsforsikring AS | 3,741 | $308.0K | 0.05% | +3,741 | New |
| PEAK6 LLC | 3,779 | $311.1K | 0.01% | −7,775−67.3% | Reduced |
| Blalock Williams, LLC | 3,795 | $312.4K | 0.24% | +106+2.9% | Added |
| Marex Group plc | 3,801 | $312.9K | 0.00% | −804−17.5% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 3,968 | $313.9K | 0.00% | −8,316−67.7% | Reduced |
| MQS Management LLC | 3,814 | $314.0K | 0.21% | −925−19.5% | Reduced |
| Y.D. More Investments Ltd | 3,817 | $314.3K | 0.01% | −49−1.3% | Reduced |
| Obermeyer Wood Investment Counsel, LLLP | 3,844 | $316.5K | 0.01% | 00.0% | Unchanged |
| Alamea Verwaltungs GmbH | 3,903 | $321.3K | 0.24% | +864+28.4% | Added |
| Wisconsin Wealth Advisors, LLC | 3,927 | $323.3K | 0.32% | 00.0% | Unchanged |
| Peak Planning Group, LLC | 3,973 | $327.1K | 0.09% | 00.0% | Unchanged |
| Great Valley Advisor Group, Inc. | 3,975 | $327.3K | 0.01% | +369+10.2% | Added |
| Formula Growth Ltd | 4,000 | $329.3K | 0.15% | 00.0% | Unchanged |
| Gabelli Funds LLC | 4,000 | $329.3K | 0.00% | +1,600+66.7% | Added |
| GWM Advisors LLC | 4,014 | $330.5K | 0.00% | −579−12.6% | Reduced |
| MAI Capital Management | 4,038 | $332.4K | 0.00% | −15−0.4% | Reduced |
| Bridgewater Associates, LP | 4,062 | $334.4K | 0.00% | +4,062 | New |
| First Manhattan Co | 4,071 | $335.2K | 0.00% | +4,071 | New |
| Saudi Central Bank | 4,082 | $336.1K | 0.01% | +4,082 | New |
| Leonteq Securities AG | 4,090 | $336.7K | 0.02% | +2,402+142.3% | Added |
| Crossmark Global Holdings, Inc. | 4,195 | $345.4K | 0.01% | −142−3.3% | Reduced |
| SHEPHERD WEALTH MANAGEMENT Ltd LIABILITY Co | 2,600 | $346.3K | 0.26% | +2,600 | New |
| Alphadyne Asset Management LP | 4,299 | $353.9K | 0.05% | +2,685+166.4% | Added |
| Wealth Group, Ltd. | 4,350 | $358.0K | 0.33% | +300+7.4% | Added |
| Credit Agricole S A | 4,351 | $358.2K | 0.00% | −38−0.9% | Reduced |
| Harbour Investments, Inc. | 4,355 | $358.6K | 0.01% | +3,702+566.9% | Added |
| Change Path, LLC | 4,403 | $362.5K | 0.01% | −269−5.8% | Reduced |
| Boothbay Fund Management, LLC | 4,407 | $362.8K | 0.01% | +4,407 | New |
| Diametric Capital, LP | 4,441 | $365.6K | 0.10% | +2,258+103.4% | Added |
| Vident Advisory, LLC | 4,520 | $372.1K | 0.00% | −2,557−36.1% | Reduced |
| Perpetual Ltd | 4,531 | $373.0K | 0.01% | +1,245+37.9% | Added |
| MUFG Securities EMEA plc | 4,537 | $373.5K | 0.01% | 00.0% | Unchanged |
| Centiva Capital, LP | 4,540 | $373.8K | 0.02% | +4,540 | New |
| CAPROCK Group, Inc. | 4,661 | $383.7K | 0.01% | −6,957−59.9% | Reduced |
| Evolve Private Wealth, LLC | 4,661 | $383.7K | 0.02% | −300−6.0% | Reduced |
| E. Ohman J:or Asset Management AB | 4,700 | $387.0K | 0.01% | 00.0% | Unchanged |
| Landmark Investment Partners, L.P. | 4,726 | $389.1K | 0.40% | +4,726 | New |
| Coldstream Capital Management Inc | 4,792 | $394.5K | 0.00% | −311−6.1% | Reduced |
| Commonwealth Financial Services, LLC | 4,805 | $395.6K | 0.06% | +5+0.1% | Added |
| New Mexico Educational Retirement Board | 5,100 | $420.0K | 0.01% | 00.0% | Unchanged |
| KPP Advisory Services LLC | 5,148 | $423.8K | 0.06% | +289+5.9% | Added |
| Perigon Wealth Management, LLC | 5,161 | $424.9K | 0.01% | +100+2.0% | Added |