Builders FirstSource BLDR Institutional Ownership

Ownership Summary

Builders FirstSource, Inc. (NYSE:BLDR) has 710 institutional investors that have filed 13F reports for the period ending March 2026.

• They owned 9944.2% of outstanding stock in March 2026, up from 9864.9% the prior quarter.
• They increased total shares held in BLDR by 15.26% quarter over quarter, and investors in Builders FirstSource decreased 9.44% from a year ago.
• During the quarter, 377 of these 710 funds increased positions in BLDR, 230 reduced exposure, and 103 held steady.
• Combined, these investors held 106.9Mn shares in BLDR for March 2026, up by 14.16Mn shares quarter on quarter, and down 8.15Mn shares year over year.
• BlackRock, Inc. holds the largest position in BLDR at 8.76Mn shares as of March 31, 2026, or 815.0% of shares outstanding.
• Leading buyers of Builders FirstSource shares for the quarter ending March 2026 were VANGUARD CAPITAL MANAGEMENT LLC (7.03Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (4.32Mn), Coliseum Capital Management, LLC (1.31Mn), Focus Partners Wealth (970.55K), Janus Henderson Group Plc (644.63K).
• The biggest sellers of Builders FirstSource for the quarter ending March 2026 included NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO (2.24Mn), FMR LLC (2.21Mn), Franklin Resources Inc (1.68Mn), VICTORY CAPITAL MANAGEMENT INC (1.64Mn), CITADEL ADVISORS LLC (743.72K).
• According to Business Quant data, leading holders of BLDR for March 2026 are BlackRock, Inc. (8.76Mn), VANGUARD CAPITAL MANAGEMENT LLC (7.03Mn), State Street Corp (5.12Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (4.32Mn), WELLINGTON MANAGEMENT GROUP LLP (3.68Mn), DIMENSIONAL FUND ADVISORS LP (2.97Mn), Capital International Investors (2.94Mn), GEODE CAPITAL MANAGEMENT, LLC (2.88Mn), SANDS CAPITAL MANAGEMENT, LLC (2.62Mn), Invesco Ltd. (2.6Mn).