STEEL DYNAMICS INC

Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)

STLD Mining & Metals People in Mining & Metals SEC CIK 0001022671 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$34.37B
143,328,088 shares Covers every share class this company has on file.
Insiders on file
19
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$2.36B
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
6.87%
insider-held value divided by market capitalisation

What STEEL DYNAMICS INC reports

Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$18.18B
FY2025 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
$1.19B
FY2025 profit for the period, from this company’s own annual XBRL filings to the SEC
Employees
14,400
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at STEEL DYNAMICS INC

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against STEEL DYNAMICS INC.
Insider Reported role Shares Value Last action
Officers 7
Barry Schneider Barry Schneider COO 246,399 $59.64M F Shares withheld for taxes Mar 13, 2026 position reported
Glenn Pushis SVP 133,008 $32.20M F Shares withheld for taxes Jan 9, 2026 position reported
Miguel Alvarez Miguel Alvarez SVP 127,082 $30.76M S Open-market sale Apr 23, 2026 position reported
James Stanley Anderson James Stanley Anderson SVP 112,837 $27.31M S Open-market sale Jun 5, 2026 position reported
Christopher A Graham Christopher A Graham SVP 77,747 $18.82M S Open-market sale May 13, 2026 position reported
Richard A Poinsatte Richard A Poinsatte SVP 30,918 $7.48M G Bona fide gift May 14, 2026 position reported
Chad Bickford Chad Bickford VP 24,191 $5.86M F Shares withheld for taxes May 1, 2026 position reported
Officers who also sit on the board 3
Mark D. Millett Mark D. Millett CEO 3,016,701 $730.22M G Bona fide gift Jul 28, 2026 position reported
Theresa E Wagler Theresa E Wagler CFO 495,038 $119.83M A Grant or award Mar 13, 2026 position reported
Jennifer L Hamann Jennifer L Hamann CFO 4,479 $1.08M A Grant or award Aug 13, 2026 position reported
Directors 9
Richard P. Teets Jr. Board Member 5,146,204 $1.25B A Grant or award May 6, 2026 position reported
Gabriel Shaheen Board Member 82,363 $19.94M A Grant or award Apr 10, 2026 position reported
James C. Marcuccilli Board Member 61,985 $15.00M position reported
Traci M. Dolan Board Member 58,036 $14.05M A Grant or award Jul 10, 2026 position reported
Bradley S Seaman Board Member 50,650 $12.26M A Grant or award Jul 10, 2026 position reported
Kenneth W Cornew Board Member 36,294 $8.79M A Grant or award Jul 10, 2026 position reported
Sheree L. Bargabos Board Member 26,134 $6.33M A Grant or award Jul 10, 2026 position reported
Steven Alan Sonnenberg Board Member 19,561 $4.73M position reported
Luis Manuel Sierra Board Member 10,792 $2.61M A Grant or award Jul 10, 2026 position reported

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

STEEL DYNAMICS INC (STLD) filed a Form 8-K/A under Item 5.02 (directors and officers) on Aug 18, 2026

Director or officer change filing

The company filed a current report that includes Item 5.02, the item used to report departures, elections or appointments of directors and certain officers, and related pay arrangements. We record only that this filing exists: we have not extracted who left, who joined or whose role changed. Open the filing to read it.

Form 8-K/A filed Aug 18, 2026, item 5.02. SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

STEEL DYNAMICS INC (STLD) filed a Form 8-K under Item 5.02 (directors and officers) on Aug 4, 2026

Director or officer change filing

The company filed a current report that includes Item 5.02, the item used to report departures, elections or appointments of directors and certain officers, and related pay arrangements. We record only that this filing exists: we have not extracted who left, who joined or whose role changed. Open the filing to read it.

Form 8-K filed Aug 4, 2026, items 5.02, 7.01, 9.01. SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Recent insider transactions

Of the 320 rows we hold, 0 are open-market purchases and 32 open-market sales (S) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for STEEL DYNAMICS INC, newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Aug 13, 2026 Jennifer L Hamann A Grant or award 72 $0.00 $0 SEC filing ↗
Jul 28, 2026 Mark D. Millett G Bona fide gift 300 $0.00 $0 SEC filing ↗
Jul 10, 2026 Luis Manuel Sierra A Grant or award 7 $0.00 $0 SEC filing ↗
Jul 10, 2026 Bradley S Seaman A Grant or award 109 $0.00 $0 SEC filing ↗
Jul 10, 2026 Jennifer L Hamann A Grant or award 18 $0.00 $0 SEC filing ↗
Jul 10, 2026 Traci M. Dolan A Grant or award 102 $0.00 $0 SEC filing ↗
Jul 10, 2026 Kenneth W Cornew A Grant or award 2 $0.00 $0 SEC filing ↗
Jul 10, 2026 Sheree L. Bargabos A Grant or award 43 $0.00 $0 SEC filing ↗
Jun 5, 2026 James Stanley Anderson S Open-market sale 322 $269.93 $86.9K SEC filing ↗
Jun 5, 2026 James Stanley Anderson S Open-market sale 4,401 $269.22 $1.18M SEC filing ↗
Jun 5, 2026 James Stanley Anderson S Open-market sale 4,177 $268.42 $1.12M SEC filing ↗
Jun 5, 2026 James Stanley Anderson S Open-market sale 1,100 $267.35 $294.1K SEC filing ↗
Jun 1, 2026 Bradley S Seaman A Grant or award 712 $0.00 $0 SEC filing ↗
Jun 1, 2026 Jennifer L Hamann A Grant or award 712 $0.00 $0 SEC filing ↗
Jun 1, 2026 Traci M. Dolan A Grant or award 712 $0.00 $0 SEC filing ↗
Jun 1, 2026 Kenneth W Cornew A Grant or award 712 $0.00 $0 SEC filing ↗
Jun 1, 2026 Sheree L. Bargabos A Grant or award 712 $0.00 $0 SEC filing ↗
Jun 1, 2026 Luis Manuel Sierra A Grant or award 712 $0.00 $0 SEC filing ↗
May 14, 2026 Richard A Poinsatte G Bona fide gift 200 $0.00 $0 SEC filing ↗
May 13, 2026 Christopher A Graham S Open-market sale 3,001 $236.90 $710.9K SEC filing ↗
May 13, 2026 Christopher A Graham S Open-market sale 3,000 $237.01 $711.0K SEC filing ↗
May 13, 2026 Christopher A Graham S Open-market sale 2,999 $236.52 $709.3K SEC filing ↗
May 12, 2026 Richard A Poinsatte S Open-market sale 2,300 $234.11 $538.5K SEC filing ↗
May 6, 2026 Jennifer L Hamann A Grant or award 79 $0.00 $0 SEC filing ↗
May 6, 2026 Richard P. Teets Jr. A Grant or award 158 $0.00 $0 SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Subsidiaries — 17 legal entities

Subsidiaries of STEEL DYNAMICS INC

17 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.

This is not the full list. SEC rules only require a company to name its significant subsidiaries.

What that leaves out

Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.

Subsidiaries STEEL DYNAMICS INC names in its most recent annual report, with the place each one is organised.
Subsidiary Organised in
Aluminum Dynamics, LLC Indiana
Mesabi Nugget Delaware, LLC Delaware
New Millennium Building Systems, LLC Indiana
New Process Steel, LLC Indiana
OmniSource, LLC Indiana
Roanoke Electric Steel Corporation Indiana
SDI Biocarbon Solutions, LLC Delaware
Steel Dynamics Columbus, LLC Indiana
Steel Dynamics Enterprises, Inc. Indiana
Steel Dynamics Heartland, LLC Indiana
Steel Dynamics Sales North America, Inc. Indiana
Steel Dynamics Southwest, LLC Indiana
Steel of West Virginia, Inc. Indiana
STLD Holdings, Inc. Indiana
The Techs Industries, Inc. Indiana
United Steel Supply, LLC Texas
Vulcan Threaded Products, Inc. Indiana
What counts as a subsidiary

A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from STEEL DYNAMICS INC’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from STEEL DYNAMICS INC’s own SEC filings multiplied by the closing price we hold for the same stock.

Logo: Unknown author / Public domain , via Wikimedia Commons ↗ — used here to identify the company. Trademarks remain the property of their owner.