Brian D. Chambers
Board Chair, President & Chief Executive Officer
Executive
25 reports
Owens Corning ·OC
Materials · Fortune #387 · Hybrid structure · 25K employees · Toledo, Ohio
Sourced from Owens Corning DEF 14A · filed 2026-03-13 ↗ View on SEC
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Download the CSV data insteadThree product presidents run P&Ls under a combined CFO/COO. This page maps Owens Corning’s enterprise org structure, detailing CEO span of control, segment leadership, functional oversight, recent leadership changes, and peer comparisons.
What to model
Start with the public baseline, then use the scenario views and source-backed changes to ask what happens when leadership, span, or team ownership shifts.
Promoted to combined CFO/COO role effective May 1, 2026.
Source · See change logThe people
6 executives identified as Named Executive Officers in the most recent SEC proxy. Bar length scales with tenure.
Board Chair, President & Chief Executive Officer
Executive
25 reports
Executive Vice President, Chief Financial and Operating Officer
Finance & Operations
15 reports
Executive Vice President, Chief Administrative Officer & General Counsel
Legal & Administration
10 reports
President, Roofing
Roofing
8 reports
President, Doors
Doors
8 reports
President, Insulation
Insulation
8 reports
The pay
From the most recent DEF 14A Summary Compensation Table. 1 named executive officers disclosed. Bar length scales with total compensation.
The skin in the game
Insider stock holdings and the company's ownership requirements for executives and directors. Disclosed in the most recent DEF 14A.
Stock ownership guidelines require multiples of base salary or cash retainer.
| Holder | Shares | % of class |
|---|---|---|
| Brian D. Chambers | 365K | <1% |
The businesses
4 divisions report into the group CEO. Tile size scales with estimated headcount.
8K employees
President, Roofing (Nicolas Del Monaco)
Manufactures and sells roofing shingles and systems across North America and Europe.
$4.4B rev FY2025
9K employees
President, Insulation (Open Role)
Produces insulation products for residential and commercial applications.
$3.7B rev FY2025
6K employees
President, Doors (Rachel B. Marcon)
Designs and manufactures interior and exterior doors and door systems.
$2.1B rev FY2025
500 employees
EVP, CFO & COO (Todd W. Fister)
Oversees financial reporting, capital allocation, treasury, and operational integration.
The thesis
Three product presidents with full P&L accountability report directly to the CEO, while finance and operations are unified under a combined CFO/COO.
This creates a clear enterprise spine: the CEO oversees strategy and capital allocation, the CFO/COO drives operational discipline, and segment presidents run Roofing, Insulation, and Doors as scaled businesses. The combined CFO/COO role is distinctive for a Fortune 500 manufacturer and reflects Owens Corning’s emphasis on tight linkage between operating performance and financial outcomes.
The structure is relatively flat at the top, with six direct reports to the CEO, but becomes more functional at level three, where finance, operations, legal, HR, and supply chain leaders support the enterprise. This hybrid model balances product-line accountability with centralized control over risk, capital, and talent.
The comparison
Compared with peers like CertainTeed (Saint-Gobain) and Masco, Owens Corning places more explicit P&L authority in segment presidents while retaining strong enterprise oversight. Many building products peers separate CFO and COO roles; Owens Corning’s temporary combination is unusual but not unprecedented during …
Current signals
The most significant change was Todd Fister’s promotion to a combined CFO/COO role in May 2026.
Year-over-year executive structure based on SEC proxy and annual filings.
Segment presidents were refreshed following the Doors integration.
Legacy leadership prior to mid-2025 segment changes.
Insulation was led directly by a segment president later elevated to CFO.
2025 saw major segment leadership changes tied to the Doors integration.
The board
2 directors. 1 of 2 independent (50%). Source: most recent DEF 14A.
CEO, Owens Corning
Also on: Lincoln Electric Holdings
Former Audit Partner, Deloitte
Also on: Deluxe Corporation, Albemarle Corporation
The board, organized
1 standing committees. Audit and Compensation must be 100% independent under SEC rules; the rest vary.
Brian D. Chambers has served as President and Chief Executive Officer since 2019 and Board Chair since 2020.
Owens Corning uses a hybrid enterprise structure combining segment P&L leadership with centralized functional control.
The CEO has five direct reports, including the CFO/COO, CAO/GC, and three segment presidents.
In May 2026, Todd W. Fister was promoted to a combined CFO and COO role, consolidating financial and operational leadership.
Yes. As of May 2026, the COO responsibilities are combined with the CFO role under Todd W. Fister.
Reference
If you reference this page in research, analysis, or news writing, use one of the formats below. Citation includes the SEC filing source where applicable.
Creately. (2026). Owens Corning organizational structure. Creately. Retrieved , from https://creately.com/org-chart/fortune-500/owens-corning/"Owens Corning Organizational Structure." Creately, April 1, 2026, https://creately.com/org-chart/fortune-500/owens-corning/. Accessed .Creately. "Owens Corning Organizational Structure." Last modified April 1, 2026. https://creately.com/org-chart/fortune-500/owens-corning/.Owens Corning. DEF 14A. Filed 2026-03-13. U.S. Securities and Exchange Commission. https://www.sec.gov/Archives/edgar/data/1370946/000137094626000107/oc-20260312.htmPermanent URL: https://creately.com/org-chart/fortune-500/owens-corning/ · last updated 2026-04-01