Last updated Aug 21, 2026
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 Tweedy Browne. Active congressional traders include Ro Khanna.
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