internal
Mark D. Millett
Chairman & Chief Executive Officer
Executive
14 yr
6 reports
Steel Dynamics, Inc. ·STLD
Enterprise steelmaker with operations-led CEO and no separate COO
Materials · Fortune #236 · Hybrid structure · 13K employees · Fort Wayne, Indiana
View as of:
7
CEO span
↓ tighter than peers (avg 10)
3.6
Avg span
moderate
2
Max depth
2 levels
9.1 yr
Avg tenure
stable vs FY2024
71%
Internal hires
↑ above industry avg
Consolidated financials FY2025 · period end 2025-12-31 · 10-K
Revenue
$18.2B
Operating income
$1.5B
Net income
$1.2B
Total assets
$16.4B
Shares out
145M
Sourced from Steel Dynamics, Inc. DEF 14A · filed 2026-03-27 ↗ View on SEC
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Steel Dynamics, Inc. organizational chart
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Steel Dynamics operates with a CEO-centric enterprise structure in which core steel and recycling leaders report directly to the CEO rather than through a COO. This page details the executive team, reporting lines, leadership tenure, recent changes, and peer comparisons.
What to model
Use the chart to test org decisions, not just view reporting lines
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.
Latest signal Richard P. Teets, Jr. departed as Director
Retired from the Board effective the 2026 Annual Meeting (March 2026).
Source · See change logScenario views in the chart
- Add Chief AI & Automation Officer Introduce a new executive role to coordinate AI, automation, and advanced manufacturing across mills.
- Create Formal COO Role Consolidate steel operations under a formal COO to reduce CEO operational span.
Atlas work this supports
- Connect Workday or UKG Get these analytics for YOUR org — tenure, span of control, headcount, automatically from your HRIS.
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- Plan a Reorg Use this as a starting point. Model scenarios, compare structures, present options to your board.
The people
Who's running this
7 executives identified as Named Executive Officers in the most recent SEC proxy. Bar length scales with tenure.
internal
Barry T. Schneider
Executive Vice President, Steel Operations
Operations
10 yr
0 reports
internal
Theresa E. Wagler
Executive Vice President & Chief Financial Officer
Finance
9 yr
0 reports
internal
Christopher A. Graham
Executive Vice President, Metals Recycling
Recycling
8 yr
0 reports
internal
Glenn A. Pushis
Executive Vice President, Long Products
Steel Operations
10 yr
0 reports
Open Role
Senior Vice President & General Counsel
Legal
1 yr
0 reports
Open Role
Senior Vice President, Human Resources
HR
3 yr
0 reports
The businesses
How Steel Dynamics, Inc. divides the work
3 divisions report into the group CEO. Tile size scales with estimated headcount.
Steel Operations
7K employees
Executive Vice President, Steel Operations (Barry T. Schneider)
Operates EAF steel mills and flat-rolled and long product facilities across North America.
Metals Recycling
3K employees
Executive Vice President, Metals Recycling (Christopher A. Graham)
Processes ferrous and nonferrous scrap supporting SDI’s circular manufacturing model.
Finance
500 employees
Executive Vice President & CFO (Theresa E. Wagler)
Oversees financial reporting, treasury, tax, and capital allocation.
The thesis
Why this org is unusual
Steel Dynamics’ most distinctive structural feature is that its long-tenured CEO directly oversees core operating executives rather than delegating to a formal COO.
Mark Millett has maintained a compact span of control with EVP leaders running steel operations, long products, and recycling as peer platforms. This reflects the company’s entrepreneurial, performance-driven culture, where operational accountability sits close to the CEO.
The structure is functionally hybrid: operations are organized by product platforms, while finance, legal, and HR remain centralized. The absence of a separate COO concentrates authority in the steel operations EVP role, but ultimate integration decisions remain with the CEO. This has enabled consistent capital allocation and rapid execution across mills, recycling, and downstream fabrication.
- No separate COO role
- Long-tenured internally promoted executives
The comparison
How Steel Dynamics, Inc. stacks up
Compared with peers like Nucor and Cleveland-Cliffs, Steel Dynamics is flatter and more CEO-centric. Nucor relies on a decentralized divisional model with autonomous mill leadership, while Cleveland-Cliffs has layered operational oversight following acquisitions. Steel Dynamics’ structure emphasizes experienced …
C-suite size
Reporting depth
Steel Dynamics, Inc.
2 levels
5 levels
6 levels
U.S. Steel
6 levels
ArcelorMittal
7 levels
Avg C-suite tenure
Has COO / Has CAIO
Steel Dynamics, Inc. — no COO — no CAIO
U.S. Steel ✓ COO — no CAIO
ArcelorMittal ✓ COO — no CAIO
Current signals
What changed recently
In March 2026, Steel Dynamics announced the retirement of two long-serving directors, reducing board size from nine to seven.
Leadership Timeline
Year-over-year executive structure based on SEC proxy and annual filings.
FY2025
DEF 14A filed 2026-03-27
- CEO
- Mark D. Millett
- CEO span
- 7
- C-suite
- 5
- Avg tenure
- 9 yr
Continued stability with long-tenured internally promoted executives.
Named executive officers (5)
- Mark D. Millett - CEO since 2012
- Theresa E. Wagler - CFO since 2017
- Barry T. Schneider - EVP Steel Operations since 2016
- Christopher A. Graham - EVP Metals Recycling since 2018
- Glenn A. Pushis - EVP Long Products since 2016
FY2024
DEF 14A filed 2025-03-13
- CEO
- Mark D. Millett
- CEO span
- 7
- C-suite
- 5
- Avg tenure
- 8.6 yr
Leadership continuity supporting aluminum and recycling expansion.
Named executive officers (5)
- Mark D. Millett - CEO since 2012
- Theresa E. Wagler - CFO since 2017
- Barry T. Schneider - EVP Steel Operations since 2016
- Christopher A. Graham - EVP Metals Recycling since 2018
- Glenn A. Pushis - EVP Long Products since 2016
Year-over-year changes
No executive turnover year-over-year; average tenure increased as leadership remained stable.
- CEO span: 7 → 7
- C-suite size: 5 → 5
- Avg tenure: 8.6 → 9 yr
Frequently Asked Questions
Who is the CEO of Steel Dynamics?
Mark D. Millett has served as Chairman and CEO of Steel Dynamics since 2012.
What type of organizational structure does Steel Dynamics use?
Steel Dynamics uses a hybrid enterprise structure with product-based operations and centralized corporate functions.
How many direct reports does Steel Dynamics's CEO have?
The CEO has seven direct reports, primarily senior operating and corporate executives.
How has Steel Dynamics's leadership changed recently?
In March 2026, two long-serving directors announced their retirement from the board.
Does Steel Dynamics have a COO?
No, Steel Dynamics does not have a separate COO; operational leadership reports directly to the CEO.
Sources
- 8-K Filing, Mar 27 2026
- SEC EDGAR: Steel Dynamics, Inc. DEF 14A Proxy Statement
- SEC EDGAR: Steel Dynamics, Inc. 10-K Annual Report
Reference
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Creately. "Steel Dynamics, Inc. Organizational Structure." Last modified April 1, 2026. https://creately.com/org-chart/fortune-500/steel-dynamics/.Original SEC source View on SEC ↗
Steel Dynamics, Inc.. DEF 14A. Filed 2026-03-27. U.S. Securities and Exchange Commission. https://www.sec.gov/Archives/edgar/data/1022671/000110465926035826/stld-20260506xdef14a.htmPermanent URL: https://creately.com/org-chart/fortune-500/steel-dynamics/ · last updated 2026-04-01