Steel Dynamics Inc.
Organization details
- Legal name
- Steel Dynamics Inc.
- Ownership
- Public
- Status
- Active
- Sector (GICS)
- Materials
- SIC code
- 3312 — Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
- Jurisdiction of incorporation
- Indiana
- Headquarters city
- Fort Wayne
- Headquarters state / province
- Indiana
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- STLD
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001022671
- EIN
- 35-1929476
- Wikidata ID
- Q7605667
Board of directors
-
Bradley S. Seaman · DirectorSince 2023
-
Gabriel Shaheen · DirectorSince 2023
-
James C. Marcuccilli · DirectorSince 2023
-
Jennifer L. Hamann · DirectorSince 2023
-
Keith E. Busse · DirectorSince 2023
-
Kenneth W. Cornew · DirectorSince 2023
-
Luis Manuel Sierra · DirectorSince 2023
-
Mark D. Millett · Director · Chairman and CEOSince 2023
-
Richard P. Teets Jr. · DirectorSince 2023
-
Sheree L. Bargabos · DirectorSince 2023
-
Steven Alan Sonnenberg · DirectorSince 2023
-
Traci M. Dolan · DirectorSince 2023
Chief executives
Director election results
Annual meeting of May 6, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
92.2%
-
94.9%
-
95.1%
-
97.1%
-
98.2%
-
99.2%
-
99.7%
Board connections
2 of this board's directors also sit on 3 other boards.
- via Bradley S. Seaman
- via Steven Alan Sonnenberg
- via Steven Alan Sonnenberg
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $20,015,025
- 18 sales by 6 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Nov 5, 2026 | Jennifer L. Hamann Director | Grant or award | +79 | — | — |
| Nov 3, 2026 | SCHNEIDER BARRY Officer (Executive Vice President & CTO) | Open-market sale | −2,116 | $246.99 | $522,631 |
| Nov 3, 2026 | SCHNEIDER BARRY Officer (Executive Vice President & CTO) | Open-market sale | −12,563 | $248.07 | $3,116,503 |
| Nov 3, 2026 | SCHNEIDER BARRY Officer (Executive Vice President & CTO) | Open-market sale | −24,202 | $249.05 | $6,027,508 |
| Nov 3, 2026 | SCHNEIDER BARRY Officer (Executive Vice President & CTO) | Open-market sale | −9,819 | $249.76 | $2,452,393 |
| Nov 3, 2026 | SCHNEIDER BARRY Officer (Executive Vice President & CTO) | Open-market sale | −1,300 | $251.10 | $326,430 |
| Oct 9, 2026 | Sheree L. Bargabos Director | Grant or award | +40 | — | — |
| Oct 9, 2026 | Kenneth W. Cornew Director | Grant or award | +2 | — | — |
| Oct 9, 2026 | Traci M. Dolan Director | Grant or award | +97 | — | — |
| Oct 9, 2026 | Jennifer L. Hamann Director | Grant or award | +18 | — | — |
| Oct 9, 2026 | Bradley S. Seaman Director | Grant or award | +105 | — | — |
| Oct 9, 2026 | Luis Manuel Sierra Director | Grant or award | +7 | — | — |
| Aug 13, 2026 | Jennifer L. Hamann Director | Grant or award | +72 | — | — |
| Jul 28, 2026 | Mark D. Millett Director, Officer (Chairman and CEO) | Gift | −300 | — | — |
| Jul 10, 2026 | Sheree L. Bargabos Director | Grant or award | +43 | — | — |
Peers
Compare boardsOrganizations in the same sector, closest in location and size first.
Questions about Steel Dynamics Inc.
Who is the CEO of Steel Dynamics Inc.?
Mark D. Millett is Steel Dynamics Inc.'s Chairman and CEO.
How many directors are on Steel Dynamics Inc.'s board?
Steel Dynamics Inc.'s board has 12 directors: Bradley S. Seaman, Gabriel Shaheen, James C. Marcuccilli, Jennifer L. Hamann, Keith E. Busse, Kenneth W. Cornew, Luis Manuel Sierra, Mark D. Millett, Richard P. Teets Jr., Sheree L. Bargabos and 2 others.
Are Steel Dynamics Inc. insiders buying or selling shares?
Over the last 12 months, Steel Dynamics Inc. insiders made no open-market purchases and sold $20.0 million of shares in 18 sales on the open market, as reported to the SEC on Forms 4 and 5.
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