Steel Dynamics (STLD) insider buying and selling
Every Table I transaction reported by directors and officers of S&P 500 companies on SEC Form 4 filings (2 business days to file): each row labeled with its official transaction code, nothing filtered out beforehand.
Open-market purchases (code P) are the rare signal, in green; sales (code S) are common and often pre-scheduled (10b5-1). Table II (derivatives) is not included: its prices are exercise prices, not market values. Guide: insider buying.
| Date | Ticker | Insider | Role | Shares | Price | Amount | % of stake | Type / filing |
|---|
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Steel Dynamics, Inc. (STLD) insider buying and selling: no purchases, 6 sales
128 Form 4 Table I transactions filed with the SEC by Steel Dynamics, Inc. insiders between 2025-09-15 and 2026-10-09 (15-month history): 0 open-market purchases and 6 sales, plus 122 transactions under other Form 4 codes, broken down one by one below. The largest open-market trade is a sale of $2.7M by Anderson James Stanley on 2026-06-05.
Steel Dynamics insider buying and selling over the last 12 months
Between Oct 21, 2025 and Oct 20, 2026, Steel Dynamics insiders filed 6 sales worth $8.9M on the open market, and no purchases.
The biggest seller was Anderson James Stanley (Senior Vice President): $2.7M in 1 sale, out of 5 different sellers.
The largest trade of the period was a sale of $2.7M on Jun 5, 2026, by Anderson James Stanley (Senior Vice President). Form 4 on sec.gov (0001022671-26-000129).
None of the 6 sales carries the 10b5-1 plan flag on the Form 4 (sales scheduled months ahead).
The last three months show 0 sales, against 5 in the three before. The latest sale from Jun 5, 2026.
Against its sector (Basic Materials, 19 companies with an insider page on this site), over the same dates the median is 5 sales and 0 purchases on the open market. Steel Dynamics has more sales than 10 of the other 18, ranks 12 of 19 by net dollars sold, and 7 of the 19 have at least one purchase.
The 20 most important trades
With no open-market purchases, the table starts with STLD's sales, largest first. The full history is in the tool above, already searched.
See all 128 STLD trades in the full history →
| Trade date | Filed | Insider | Role | Amount | Code | Filing |
|---|---|---|---|---|---|---|
| 2026-06-05 | 2026-06-08 | Anderson James Stanley | Senior Vice President | $2.7M | S — Open-market sale4 Form 4 footnotesF1 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $266.77 to $267.70, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4. F2 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $267.83 to $268.78, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. F3 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $268.83 to $269.67, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4. F4 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $269.89 to $269.98, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (4) to this Form 4. | SEC |
| 2026-05-13 | 2026-05-15 | Graham Christopher A | Senior Vice President | $2.1M | S — Open-market sale | SEC |
| 2025-10-29 | 2025-10-30 | Alvarez Miguel | Senior Vice President | $1.3M | S — Open-market saleForm 4 footnoteF1 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.61 to $163.22, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4. | SEC |
| 2026-04-23 | 2026-04-24 | Cornew Kenneth W. | Director | $1.1M | S — Open-market sale2 Form 4 footnotesF1 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $224.36 to $225.29, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4. F2 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $225.37 to $225.41, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. | SEC |
| 2026-04-23 | 2026-04-24 | Alvarez Miguel | Senior Vice President | $1.1M | S — Open-market sale3 Form 4 footnotesF1 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $225.00 to $225.53, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4. F2 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $226.13 to $226.81, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. F3 The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $227.57 to $228.38, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any securityholder of Steel Dynamics, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4. | SEC |
| 2026-05-12 | 2026-05-14 | Poinsatte Richard A | Senior Vice President | $538k | S — Open-market sale | SEC |
| 2026-03-13 | 2026-03-13 | Millett Mark D | Chairman and CEO | $3.8M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 Disposition to Issuer: Shares withheld by Issuer in payment of reporting person's withholding tax liability in connection with such person's receipt or vesting of an equity security, and either approved in advance by Compensation Committee or mandated by the express terms of the Plan and exempt from Section 16(b) of Exchange Act in accordance with Exchange Act Rule 16b-3(e). | SEC |
| 2026-03-13 | 2026-03-13 | Schneider Barry | President and COO | $2.1M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 Disposition to Issuer: Shares withheld by Issuer in payment of reporting person's withholding tax liability in connection with such person's receipt or vesting of an equity security, and either approved in advance by Compensation Committee or mandated by the express terms of the Plan and exempt from Section 16(b) of Exchange Act in accordance with Exchange Act Rule 16b-3(e). | SEC |
| 2026-03-13 | 2026-03-13 | Wagler Theresa E | Executive Vice President & CFO | $1.7M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 Disposition to Issuer: Shares withheld by Issuer in payment of reporting person's withholding tax liability in connection with such person's receipt or vesting of an equity security, and either approved in advance by Compensation Committee or mandated by the express terms of the Plan and exempt from Section 16(b) of Exchange Act in accordance with Exchange Act Rule 16b-3(e). | SEC |
| 2026-01-09 | 2026-01-12 | Pushis Glenn | Senior Vice President | $1.4M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3. | SEC |
| 2026-03-13 | 2026-03-13 | Graham Christopher A | Senior Vice President | $1.3M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 Disposition to Issuer: Shares withheld by Issuer in payment of reporting person's withholding tax liability in connection with such person's receipt or vesting of an equity security, and either approved in advance by Compensation Committee or mandated by the express terms of the Plan and exempt from Section 16(b) of Exchange Act in accordance with Exchange Act Rule 16b-3(e). | SEC |
| 2026-03-13 | 2026-03-13 | Alvarez Miguel | Senior Vice President | $1.3M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 Disposition to Issuer: Shares withheld by Issuer in payment of reporting person's withholding tax liability in connection with such person's receipt or vesting of an equity security, and either approved in advance by Compensation Committee or mandated by the express terms of the Plan and exempt from Section 16(b) of Exchange Act in accordance with Exchange Act Rule 16b-3(e). | SEC |
| 2026-03-13 | 2026-03-13 | Anderson James Stanley | Senior Vice President | $1.2M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 Disposition to Issuer: Shares withheld by Issuer in payment of reporting person's withholding tax liability in connection with such person's receipt or vesting of an equity security, and either approved in advance by Compensation Committee or mandated by the express terms of the Plan and exempt from Section 16(b) of Exchange Act in accordance with Exchange Act Rule 16b-3(e). | SEC |
| 2026-02-23 | 2026-02-25 | Millett Mark D | Chairman & CEO | $1.1M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3. | SEC |
| 2026-02-24 | 2026-02-25 | Millett Mark D | Chairman & CEO | $1.0M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3. | SEC |
| 2026-02-23 | 2026-02-25 | Wagler Theresa E | Executive Vice President & CFO | $524k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3. | SEC |
| 2026-03-13 | 2026-03-13 | Poinsatte Richard A | Senior Vice President | $500k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 Disposition to Issuer: Shares withheld by Issuer in payment of reporting person's withholding tax liability in connection with such person's receipt or vesting of an equity security, and either approved in advance by Compensation Committee or mandated by the express terms of the Plan and exempt from Section 16(b) of Exchange Act in accordance with Exchange Act Rule 16b-3(e). | SEC |
| 2026-02-24 | 2026-02-25 | Wagler Theresa E | Executive Vice President & CFO | $429k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3. | SEC |
| 2026-02-23 | 2026-02-25 | Alvarez Miguel | Senior Vice President | $370k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3. | SEC |
| 2026-02-23 | 2026-02-25 | Graham Christopher A | Senior Vice President | $370k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3. | SEC |
The period balance: money in, money out
In the Form 4 filings submitted between Sep 15, 2025 and Oct 9, 2026 there is not one open-market purchase of Steel Dynamics, Inc.: 6 sales worth $8.9M and zero dollars bought.
Only codes P and S count, where an insider puts in or takes out their own money. A selling balance like Steel Dynamics, Inc.'s is the norm in the S&P 500, where much of the pay comes as stock. It is not a recommendation to buy or sell: it is what was filed.
Every transaction, code by code
| Code | What it means | Trades | Reported amount |
|---|---|---|---|
| A | Grant or award | 80 | $0 |
| F | Tax withholding (shares surrendered for taxes) | 35 | $19.3M |
| S | Open-market sale | 6 | $8.9M |
| G | Gift | 5 | $0 |
| D | Sale back to the issuer | 1 | $172k |
| M | Option exercise | 1 | $55k |
| Total | Everything filed in the period | 128 | $28.5M |
85 of the 128 rows carry no usable amount on the Form 4: they count as trades and add $0. The code labels come from the SEC index.
Who has traded
Over the 15 months of history, 18 distinct people or entities have filed Steel Dynamics, Inc. transactions: none bought on the open market and 5 sold. Counted by CIK, the fixed number the SEC gives each filer, and not by name, which each filer types their own way.
| Filer | Role | Transactions | Bought (count) | Sold (count) | Last filed |
|---|---|---|---|---|---|
| Anderson James Stanley | Senior Vice President | 8 | — | $2.7M (1) | 2026-06-08 |
| Alvarez Miguel | Senior Vice President | 9 | — | $2.4M (2) | 2026-04-24 |
| Graham Christopher A | Senior Vice President | 10 | — | $2.1M (1) | 2026-05-15 |
| Cornew Kenneth W. | Director | 7 | — | $1.1M (1) | 2026-10-09 |
| Poinsatte Richard A | Senior Vice President | 8 | — | $538k (1) | 2026-05-15 |
| Hamann Jennifer L | Director | 10 | — | — | 2026-10-09 |
| Bargabos Sheree L | Director | 9 | — | — | 2026-10-09 |
| Millett Mark D | Chairman and CEO | 8 | — | — | 2026-07-28 |
Shown here are the 8 who moved the most money, out of 18. The rest are in the full history, one link above. The name links to all their trades, in any company. "Transactions" counts any code; the money, open market only. Role: from their latest filing.
Month by month
By the month the trade was executed, not the month it was filed; months with no trades show zero. The busiest month was Apr 2026: 0 purchases and 2 sales, worth $2.2M. 11 of the 15 months have none.
| Month | Purchases | Amount | Sales | Amount |
|---|---|---|---|---|
| Aug 2025 | 0 | $0 | 0 | $0 |
| Sep 2025 | 0 | $0 | 0 | $0 |
| Oct 2025 | 0 | $0 | 1 | $1.3M |
| Nov 2025 | 0 | $0 | 0 | $0 |
| Dec 2025 | 0 | $0 | 0 | $0 |
| Jan 2026 | 0 | $0 | 0 | $0 |
| Feb 2026 | 0 | $0 | 0 | $0 |
| Mar 2026 | 0 | $0 | 0 | $0 |
| Apr 2026 | 0 | $0 | 2 | $2.2M |
| May 2026 | 0 | $0 | 2 | $2.7M |
| Jun 2026 | 0 | $0 | 1 | $2.7M |
| Jul 2026 | 0 | $0 | 0 | $0 |
| Aug 2026 | 0 | $0 | 0 | $0 |
| Sep 2026 | 0 | $0 | 0 | $0 |
| Oct 2026 | 0 | $0 | 0 | $0 |
The last month may be partial: a Form 4 is filed up to two business days later. The table does not say whether the pattern is good or bad; it says when it happened.
Steel Dynamics, Inc. (STLD) analysis page →
Other Basic Materials companies with insider trades
All 500 are listed in the section index →
Which insiders are buying their own company stock →
How to read this data
None of the 6 sales in the table is flagged as scheduled (10b5-1 plan), the kind signed months ahead and executed automatically. Steel Dynamics has no open-market purchase (code P) in the history, the most common case in the S&P 500: insiders are already paid in stock. The latest filing is from Oct 9, 2026, and a Form 4 arrives up to two business days after the trade.
18 of the 20 rows in the table carry footnotes from the Form 4 itself, folded into the code column and copied verbatim; a row with no footnote means the filing has none.
Guide: Insider buying · all guides
What is behind these trades
The concepts on this page, explained from scratch in the Academy. Free, no account.
- What the efficiency hypothesis says and what it does NOT sayIf an insider's purchase is public and anyone can read it, is there any information left in it? That is the exact question that brings people here.
- Who really moves the market: the types of investorWho sits on the other side of each order, and where a company's own insiders fit among them.
- Supply, demand and price: why it rises and falls constantlyHow a piece of news ends up inside the price, and why the reaction to a filed sale is rarely the one you would expect.
Source: SEC EDGAR Form 4. This is a list of public facts, not financial advice or a recommendation to buy or sell.