---
schema_version: "secwatch.filing_event.v1"
accession: "0001941365-25-000052"
form_type: "8-K"
ticker: "MBC"
cik: "0001941365"
company_name: "MasterBrand, Inc."
filed_at: "2025-05-06T23:59:59+00:00"
generated_at: "2026-05-22T14:27:20.671242+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# MasterBrand Q1 net income falls 65% to $13.3M; adjusts FY 2025 outlook

## Summary
- Net sales up 3% YoY to $660.3M; net income down 65% to $13.3M; diluted EPS $0.10 (vs $0.29).
- Adjusted EBITDA margin fell 220 bps to 10.2%; adjusted diluted EPS $0.18 (vs $0.31).
- Weak Spring selling season pressured new construction and R&R markets; base business volume down 9%.
- Supreme acquisition contributed 10% sales growth but integration costs and restructuring weighed on margins.
- Company updated 2025 financial outlook (no specific guidance figures provided in release).

## SEC filing metadata
- accession: 0001941365-25-000052
- form_type: 8-K
- ticker: MBC
- cik: 0001941365
- company_name: MasterBrand, Inc.
- filed_at: 2025-05-06T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1941365/000194136525000052/0001941365-25-000052-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1941365/000194136525000052/mbc-20250506.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001941365-25-000052
- JSON: https://secwatch.observer/filing/0001941365-25-000052.json
- Plain text: https://secwatch.observer/filing/0001941365-25-000052.txt

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