SCHEDULE 13G/AFiling Date: Oct 5, 2026

Builders FirstSource (BLDR) SCHEDULE 13G/A (Oct 5, 2026)

Passive Stake

View SEC Filing

ACC: 0002012383-26-003316

Stake

BlackRock, Inc.

Rule 13d-1(b)Amendment #7

Passive

Common StockCUSIP 12008R107

Percent12.00%

Shares12.90M

Event dateSep 30

Sole voting / Sole dispositive12.58M / 12.90M

Shared voting / Shared dispositive0 / 0

Original SEC Filing Text expand_more

=== SEC Schedule 13G — Passive Stake === Issuer: Builders FirstSource, Inc. Issuer CIK: 0001316835 Class: Common Stock CUSIP: 12008R107 Event Date: 2026-09-30 Amendment: yes #7 Rule: Rule 13d-1(b) --- Reporting Persons --- - BlackRock, Inc. (no CIK) 12897766 sh 12.0% HC

More filings from Builders FirstSource (BLDR)

Builders FirstSource (BLDR) 8-K · Aug 7, 2026Executive Change
Builders FirstSource (BLDR) 10-Q · Jul 30, 2026Quarterly Report · ended 2026-06-30 · Rev $3.9B, NI -$3.9M
Builders FirstSource (BLDR) 8-K · Jul 30, 2026Earnings Release; Financial Statements
Builders FirstSource (BLDR) 8-K · Jun 5, 2026
Builders FirstSource (BLDR) 8-K · May 18, 2026
Builders FirstSource (BLDR) 10-Q · Apr 30, 2026

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