As of November 6, 2026, Steel Dynamics Inc. is a publicly traded company (Nasdaq: STLD); its largest reported holder is Vanguard, with 7.14% on Schedule 13G of April 30, 2026, then State Street (5.2%). The largest insider holding is Richard P. Teets Jr., a director, with 5,146,371 shares (3.6% of shares outstanding), per Form 4 of May 7, 2026 (Schedule 13G, April 30, 2026).
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Is Steel Dynamics Inc. a real, registered company?
- Steel Dynamics Inc files with the SEC under CIK 1022671 (its SEC filings).
- Its shares are listed under the ticker STLD on Nasdaq (SEC company record).
- Incorporated in Indiana; business address in Fort Wayne, Indiana, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under STEEL DYNAMICS INC in our court records and SEC 8-K records (as of 2026-11-06).
- Leadership changes: the latest reported is Mark D. Millett, Chief Executive Officer (Form 8-K filed 2026-08-04). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Fidelity (FMR) (filed 2026-08-06).
Who are Steel Dynamics Inc.'s owners and officers?
Steel Dynamics Inc.: incorporated in Indiana; business address in Fort Wayne, Indiana; industry Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) (Schedule 13G/A, 2026-11-05).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-11-05 | Fmr LLC | 3.8% |
| Schedule 13G, 2026-08-06 | Fmr LLC | 5.4% |
| Schedule 13G, 2026-05-12 | State Street Corporation | 5.2% |
| Schedule 13G, 2026-04-30 | Vanguard Capital Management | 7.14% |
| Schedule 13G/A, 2026-03-27 | The Vanguard Group | 0% |
Questions about who owns Steel Dynamics Inc.
Who owns Steel Dynamics Inc.?
On this page, 2 holders' latest ownership filings report 5% or more of Steel Dynamics Inc.: Vanguard Capital Management (7.14%, Schedule 13G, filed 2026-04-30) and State Street Corporation (5.2%, Schedule 13G, filed 2026-05-12).
Who are the largest shareholders of Steel Dynamics Inc.?
By the share each holder's latest filing reports, the largest holders of Steel Dynamics Inc. on this page are Vanguard Capital Management (7.14%) and State Street Corporation (5.2%).
When did Vanguard Capital Management buy into Steel Dynamics Inc.?
The filings give report dates, not purchase dates. The earliest filing from Vanguard Capital Management on this page is the Schedule 13G, filed 2026-04-30, reporting 7.14%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 5 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-08-04 | Mark D. Millett | Chief Executive Officer | appointed | |
| Form 8-K, 2026-08-04 | Theresa E. Wagler | Chief Financial Officer | appointed | 2027-01-01 |
| Form 8-K, 2026-08-04 | Theresa E. Wagler | Director | appointed |
Which insiders own Steel Dynamics Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a director: 5,146,371 shares (3.6% of shares outstanding), 4,980,252 held directly and 166,119 indirectly (Form 4, 2026-05-07).
- , the chairman and chief executive: 3,016,401 shares (2.1% of shares outstanding) (Form 4, 2026-07-28).
- , the president and chief financial officer: 495,038 shares (0.35% of shares outstanding) (Form 4, 2026-03-13).
- , the president and chief technology officer: 196,399 shares (0.14% of shares outstanding) (Form 4, 2026-11-04).
- , the president: 133,008 shares (0.09% of shares outstanding) (Form 4, 2026-01-12).
Shares outstanding: 142,217,487 as of 2026-10-21, from the company's latest SEC cover page.
How much has Steel Dynamics Inc. raised?
No fundraising or offering filing from Steel Dynamics Inc. is on file with us.
Keep reading
More on Steel Dynamics Inc. and the records around it.
Steel Dynamics Inc. elsewhere on the record
- Leadership changes Aug 2026
Companies that share a holder
- STATE STREET CORPORATION also filed stake reports on 343 other companies: TRADE DESK INC/THE (Oct 2026), CENTRUS ENERGY CORP (Sep 2026), ACADIA PHARMACEUTICALS INC (Aug 2026)
- FMR LLC also filed stake reports on 761 other companies: ASPEN NEUROSCIENCE INC (Nov 2026), AVALO THERAPEUTICS INC (Nov 2026), BRAZE INC (Nov 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
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