---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-243804"
form_type: "8-K"
ticker: "MBC"
cik: "0001941365"
company_name: "MasterBrand, Inc."
filed_at: "2025-10-20T23:59:59+00:00"
generated_at: "2026-05-17T03:18:24.525124+00:00"
event_type: "litigation"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# MasterBrand voluntarily supplements proxy disclosures to resolve litigation over merger info

## Summary
- MasterBrand and American Woodmark received demand letters and three lawsuits alleging proxy omissions in the merger proxy filed Sept 2025.
- Companies voluntarily supplement proxy with additional disclosures on merger background, financial projections, and fairness opinions.
- Supplemental disclosures include MasterBrand stand-alone projections for American Woodmark: CY25E Net Sales $1,676.2M, Adj. EBITDA $170.6M.
- New table of American Woodmark calendarized stand-alone projections for H2 2025E-2029E with Net Sales and EBITDA.
- Rothschild & Co selected companies analysis and precedent transactions multiples added to proxy.

## SEC filing metadata
- accession: 0001193125-25-243804
- form_type: 8-K
- ticker: MBC
- cik: 0001941365
- company_name: MasterBrand, Inc.
- filed_at: 2025-10-20T23:59:59+00:00
- event_type: litigation
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1941365/000119312525243804/0001193125-25-243804-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1941365/000119312525243804/d77534d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-243804
- JSON: https://secwatch.observer/filing/0001193125-25-243804.json
- Plain text: https://secwatch.observer/filing/0001193125-25-243804.txt

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