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Which superinvestors and politicians own Builders FirstSource, Inc. (BLDR)?

Explore more about BLDR

Valuation & analysis

  • BLDR DCF analysis
  • Free DCF calculator
  • Compound interest calculator

Smart-money holders

  • Superinvestors holding BLDR
  • Politicians trading BLDR
  • Insider buys & sells at BLDR

Most-watched investors

  • Warren Buffett
  • Leopold Aschenbrenner
  • George Soros
  • Ray Dalio
  • Bill Ackman

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Last updated Aug 4, 2026

Builders FirstSource, Inc. (BLDR) — smart-money holders

Builders FirstSource, Inc. (BLDR) is a publicly traded company. This page tracks every superinvestor 13F holding, congressional stock trade, and Form 4 insider transaction in BLDR. Across our datasets, 3 superinvestors hold BLDR, 1 members of Congress have traded it, and 1 insider buys are on record.

Notable holders include Francois Rochon, Ray Dalio, and George Soros. Active congressional traders include Ro Khanna.

Key takeaways

  • 3 superinvestor holders.
  • 1 congressional traders.
  • 1 insider buys / 1 insider sells on file.