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, Q2 2026
Institutional positions in Builders FirstSource, Inc. as of Jun 30, 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
- 671
- −51 vs. Q1 2026
- Shares held
- 107.6M
- +2.18M (+2.1%) vs. Q1 2026
- Total value
- $9.63B
- +$945.6M (+10.9%) vs. Q1 2026
- New holders
- 98
- 241 more added
- Sold out
- 149
- 261 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Builders FirstSource, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Magnetar Financial LLC | 0 | $0 | 0.00% | −24,019−100.0% | Sold out |
| Lombard Odier Asset Management (Switzerland) SA | 0 | $0 | 0.00% | −22,278−100.0% | Sold out |
| KCM Investment Advisors LLC | 0 | $0 | 0.00% | −22,140−100.0% | Sold out |
| SEB Asset Management AB | 0 | $0 | 0.00% | −21,832−100.0% | Sold out |
| Swedbank AB | 0 | $0 | 0.00% | −21,681−100.0% | Sold out |
| OP Asset Management Ltd | 0 | $0 | 0.00% | −20,830−100.0% | Sold out |
| Impala Asset Management LLC | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| IFM Investors Pty Ltd | 0 | $0 | 0.00% | −19,966−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −19,773−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −16,204−100.0% | Sold out |
| King Luther Capital Management Corp | 0 | $0 | 0.00% | −15,774−100.0% | Sold out |
| British Columbia Investment Management Corp | 0 | $0 | 0.00% | −15,243−100.0% | Sold out |
| National Pension Service | 0 | $0 | 0.00% | −14,466−100.0% | Sold out |
| Nissay Asset Management Corp | 0 | $0 | 0.00% | −14,265−100.0% | Sold out |
| Nordea Investment Management AB | 0 | $0 | 0.00% | −13,592−100.0% | Sold out |
| PensionDanmark Pensionsforsikringsaktieselskab | 0 | $0 | 0.00% | −13,016−100.0% | Sold out |
| Wincap Financial LLC | 0 | $0 | 0.00% | −12,758−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −10,996−100.0% | Sold out |
| Concentric Capital Strategies, LP | 0 | $0 | 0.00% | −10,969−100.0% | Sold out |
| Union Square Park Capital Management, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Abn Amro Investment Solutions | 0 | $0 | 0.00% | −9,961−100.0% | Sold out |
| Eschler Asset Management LLP | 0 | $0 | 0.00% | −9,660−100.0% | Sold out |
| Harber Asset Management LLC | 0 | $0 | 0.00% | −9,600−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −9,183−100.0% | Sold out |
| Gulf International Bank (UK) Ltd | 0 | $0 | 0.00% | −8,678−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −8,436−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −7,721−100.0% | Sold out |
| Candriam Luxembourg S.C.A. | 0 | $0 | 0.00% | −7,710−100.0% | Sold out |
| Westbourne Investments, Inc. | 0 | $0 | 0.00% | −7,600−100.0% | Sold out |
| Fuller & Thaler Asset Management, Inc. | 0 | $0 | 0.00% | −7,512−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −7,256−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −7,053−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −6,689−100.0% | Sold out |
| Prudential PLC | 0 | $0 | 0.00% | −6,569−100.0% | Sold out |
| Roundview Capital LLC | 0 | $0 | 0.00% | −6,561−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −6,251−100.0% | Sold out |
| Tokio Marine Asset Management Co Ltd | 0 | $0 | 0.00% | −6,173−100.0% | Sold out |
| Hardy Reed LLC | 0 | $0 | 0.00% | −6,000−100.0% | Sold out |
| ClearAlpha Technologies LP | 0 | $0 | 0.00% | −5,792−100.0% | Sold out |
| Hodges Capital Management Inc. | 0 | $0 | 0.00% | −5,734−100.0% | Sold out |
| Landmark Investment Partners, L.P. | 0 | $0 | 0.00% | −4,726−100.0% | Sold out |
| E. Ohman J:or Asset Management AB | 0 | $0 | 0.00% | −4,700−100.0% | Sold out |
| CAPROCK Group, Inc. | 0 | $0 | 0.00% | −4,661−100.0% | Sold out |
| Evolve Private Wealth, LLC | 0 | $0 | 0.00% | −4,661−100.0% | Sold out |
| Perpetual Ltd | 0 | $0 | 0.00% | −4,531−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −4,441−100.0% | Sold out |
| Wealth Group, Ltd. | 0 | $0 | 0.00% | −4,350−100.0% | Sold out |
| Alphadyne Asset Management LP | 0 | $0 | 0.00% | −4,299−100.0% | Sold out |
| SHEPHERD WEALTH MANAGEMENT Ltd LIABILITY Co | 0 | $0 | 0.00% | −2,600−100.0% | Sold out |
| Saudi Central Bank | 0 | $0 | 0.00% | −4,082−100.0% | Sold out |
| First Manhattan Co | 0 | $0 | 0.00% | −4,071−100.0% | Sold out |
| Gabelli Funds LLC | 0 | $0 | 0.00% | −4,000−100.0% | Sold out |
| Alamea Verwaltungs GmbH | 0 | $0 | 0.00% | −3,903−100.0% | Sold out |
| Obermeyer Wood Investment Counsel, LLLP | 0 | $0 | 0.00% | −3,844−100.0% | Sold out |
| MQS Management LLC | 0 | $0 | 0.00% | −3,814−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −3,779−100.0% | Sold out |
| Oslo Pensjonsforsikring AS | 0 | $0 | 0.00% | −3,741−100.0% | Sold out |
| AlphaGrep UK Ltd | 0 | $0 | 0.00% | −3,666−100.0% | Sold out |
| Neo Ivy Capital Management | 0 | $0 | 0.00% | −3,593−100.0% | Sold out |
| Patton Fund Management, Inc. | 0 | $0 | 0.00% | −3,363−100.0% | Sold out |
| Banque Cantonale Vaudoise | 0 | $0 | 0.00% | −3,316−100.0% | Sold out |
| World Equity Group, Inc. | 0 | $0 | 0.00% | −3,308−100.0% | Sold out |
| Wexford Capital LP | 0 | $0 | 0.00% | −3,300−100.0% | Sold out |
| B. Metzler seel. Sohn & Co. AG | 0 | $0 | 0.00% | −3,249−100.0% | Sold out |
| Calamos Advisors LLC | 0 | $0 | 0.00% | −3,209−100.0% | Sold out |
| Calamos Wealth Management LLC | 0 | $0 | 0.00% | −3,209−100.0% | Sold out |
| Metis Global Partners, LLC | 0 | $0 | 0.00% | −3,186−100.0% | Sold out |
| Asahi Life Asset Management Co., Ltd. | 0 | $0 | 0.00% | −3,125−100.0% | Sold out |
| Guyasuta Investment Advisors Inc | 0 | $0 | 0.00% | −3,122−100.0% | Sold out |
| Royal London Asset Management Ltd | 0 | $0 | 0.00% | −3,095−100.0% | Sold out |
| Applied Finance Capital Management, LLC | 0 | $0 | 0.00% | −2,805−100.0% | Sold out |
| Bennett Selby Investments LP | 0 | $0 | 0.00% | −2,756−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −2,728−100.0% | Sold out |
| Cambria Investment Management, L.P. | 0 | $0 | 0.00% | −2,671−100.0% | Sold out |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 0 | $0 | 0.00% | −2,656−100.0% | Sold out |
| Sowell Financial Services LLC | 0 | $0 | 0.00% | −2,636−100.0% | Sold out |
| Kathmere Capital Management, LLC | 0 | $0 | 0.00% | −2,582−100.0% | Sold out |
| Ostrum Asset Management | 0 | $0 | 0.00% | −2,545−100.0% | Sold out |
| Seelaus Asset Management LLC | 0 | $0 | 0.00% | −2,540−100.0% | Sold out |
| Osmosis Investment Management UK Ltd | 0 | $0 | 0.00% | −2,450−100.0% | Sold out |
| Stevens Capital Management LP | 0 | $0 | 0.00% | −2,447−100.0% | Sold out |
| ASR Vermogensbeheer N.V. | 0 | $0 | 0.00% | −2,138−100.0% | Sold out |
| NBT Bank N A | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Board of the Pension Protection Fund | 0 | $0 | 0.00% | −1,400−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −1,380−100.0% | Sold out |
| Raiffeisen Bank International AG | 0 | $0 | 0.00% | −1,304−100.0% | Sold out |
| Livforsakringsbolaget Skandia, Omsesidigt | 0 | $0 | 0.00% | −902−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −581−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −372−100.0% | Sold out |
| Intentional Wealth Strategies, LLC | 0 | $0 | 0.00% | −363−100.0% | Sold out |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −175−100.0% | Sold out |
| Itau Unibanco Holding S.A. | 0 | $0 | 0.00% | −143−100.0% | Sold out |
| Longview Financial Advisors, Inc. | 0 | $0 | 0.00% | −138−100.0% | Sold out |
| Owl Creek Wealth Partners LLC | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| Legacy Wealth Managment, LLC | 0 | $0 | 0.00% | −106−100.0% | Sold out |
| Vaughan Nelson Investment Management, L.P. | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Arlington Trust Co LLC | 0 | $0 | 0.00% | −48−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| Sachetta, LLC | 0 | $0 | 0.00% | −27−100.0% | Sold out |