---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-106157"
form_type: "8-K"
ticker: null
cik: "0000883902"
company_name: "Cornerstone Building Brands, Inc."
filed_at: "2026-09-09T13:00:46+00:00"
generated_at: "2026-09-09T13:02:18.309774+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Cornerstone Building Brands appoints Matthew Garth as CFO effective Sept 14, 2026

## Summary
- Matthew Garth named EVP and CFO, effective Sept 14, 2026; succeeds interim CFO Christian Storch.
- Garth previously CFO at Dentsply Sirona, Scotts Miracle-Gro, and Minerals Technologies.
- Compensation: $750k base salary, 90% target bonus, $200k sign-on, 202,777.78 Class B Profit Units.
- Garth brings 30+ years finance leadership; will oversee finance and IT.

## SEC filing metadata
- accession: 0001104659-26-106157
- form_type: 8-K
- cik: 0000883902
- company_name: Cornerstone Building Brands, Inc.
- filed_at: 2026-09-09T13:00:46+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/883902/000110465926106157/0001104659-26-106157-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/883902/000110465926106157/tm2625020d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-106157
- JSON: https://secwatch.observer/filing/0001104659-26-106157.json
- Plain text: https://secwatch.observer/filing/0001104659-26-106157.txt

## Key facts
- Executive change
  Matthew E. Garth was appointed as Executive Vice President and Chief Financial Officer at Cornerstone Building Brands, Inc..
  - Action: appointed
  - Role: Executive Vice President and Chief Financial Officer
  source text: On September 1, 2026, Cornerstone Building Brands, Inc. (the “Company”) appointed Matthew E. Garth as the Company’s Executive Vice President and Chief Financial Officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/883902/000110465926106157/0001104659-26-106157-index.htm
- Executive change
  Christian Storch departed as Interim Chief Financial Officer at Cornerstone Building Brands, Inc..
  - Action: concluded
  - Role: Interim Chief Financial Officer
  source text: In connection with Mr. Garth’s appointment, Christian Storch’s service as Interim Chief Financial Officer of the Company will conclude.
  evidence_url: https://www.sec.gov/Archives/edgar/data/883902/000110465926106157/0001104659-26-106157-index.htm

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