---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-122244"
form_type: "8-K"
ticker: null
cik: "0000893691"
company_name: "MASONITE INTERNATIONAL CORP"
filed_at: "2024-04-29T23:59:59+00:00"
generated_at: "2026-06-03T06:05:50.409773+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Masonite executes supplemental indenture for 2028 notes; 88.27% tendered

## Summary
- $441.4M (88.27%) of 5.375% Senior Notes due 2028 tendered as of April 26, 2024.
- Fourth Supplemental Indenture entered April 29 to adopt proposed amendments to the indenture.
- Amendments effective only upon acceptance of notes and closing of Owens Corning acquisition.
- Step advances the pending acquisition of Masonite by Owens Corning.

## SEC filing metadata
- accession: 0001193125-24-122244
- form_type: 8-K
- cik: 0000893691
- company_name: MASONITE INTERNATIONAL CORP
- filed_at: 2024-04-29T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/893691/000119312524122244/0001193125-24-122244-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/893691/000119312524122244/d794638d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-122244
- JSON: https://secwatch.observer/filing/0001193125-24-122244.json
- Plain text: https://secwatch.observer/filing/0001193125-24-122244.txt

## Key facts
- Material Agreements
  MASONITE INTERNATIONAL CORP amended Fourth Supplemental Indenture to the Indenture with Computershare Trust Company, N.A., as trustee valued at $441,351,000 (effective 2024-04-29).
  - Action: amendment
  - Agreement: notes offering
  - Counterparty: Computershare Trust Company, N.A., as trustee
  - Value: $441,351,000
  - Effective: 2024-04-29
  source text: On April 29, 2024, Masonite, the Guarantors and the Trustee accordingly entered into the Fourth Supplemental Indenture to the Indenture (the “Supplemental Indenture”) in order to adopt the Proposed Amendments.
  evidence_url: https://www.sec.gov/Archives/edgar/data/893691/000119312524122244/0001193125-24-122244-index.htm

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