---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-257380"
form_type: "8-K"
ticker: "BLDR"
cik: "0001316835"
company_name: "Builders FirstSource, Inc."
filed_at: "2025-10-30T23:59:59+00:00"
generated_at: "2026-05-17T01:15:57.332896+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Builders FirstSource Q3 net sales $3.9B (-6.9% YoY); diluted EPS $1.10 vs $2.44

## Summary
- Net income $122.4M ($1.10 diluted EPS); adjusted EPS $1.88 vs $3.07.
- Adjusted EBITDA $433.7M (-30.8% YoY); margin 11.0% (down 380 bps).
- Core organic net sales fell 10.6%; multi-family -20.2%, single-family -12.1%.
- Guidance: FY2025 net sales $15.1-$15.4B; Adj. EBITDA $1.625-$1.675B.
- Year-to-date share repurchases: 3.4M shares at avg $118.65 for $403.6M.

## SEC filing metadata
- accession: 0001193125-25-257380
- form_type: 8-K
- ticker: BLDR
- cik: 0001316835
- company_name: Builders FirstSource, Inc.
- filed_at: 2025-10-30T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1316835/000119312525257380/0001193125-25-257380-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1316835/000119312525257380/bldr-20251030.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-257380
- JSON: https://secwatch.observer/filing/0001193125-25-257380.json
- Plain text: https://secwatch.observer/filing/0001193125-25-257380.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.