STEEL DYNAMICS INC STLD
COM · Common Stock · CUSIP 858119100 · ISIN US8581191009
American materials company
- SectorMaterials
- IndustrySteel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
- HeadquartersFort Wayne, IN
- Founded1993
- Websitesteeldynamics.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($132.1m this quarter). Holder counts are more reliable. Shares outstanding: 143.3m as of 2026-07-23, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $229.34. Options: 27 managers hold calls ($291.0m notional), 23 hold puts ($215.3m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 588 |
| Q4 2022 | 675 |
| Q1 2023 | 720 |
| Q2 2023 | 705 |
| Q3 2023 | 691 |
| Q4 2023 | 768 |
| Q1 2024 | 780 |
| Q2 2024 | 784 |
| Q3 2024 | 790 |
| Q4 2024 | 797 |
| Q1 2025 | 809 |
| Q2 2025 | 816 |
| Q3 2025 | 804 |
| Q4 2025 | 915 |
| Q1 2026 | 939 |
| Q2 2026 | 1,020 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 335 | 403 |
| Q4 2024 | 355 | 376 |
| Q1 2025 | 374 | 390 |
| Q2 2025 | 363 | 410 |
| Q3 2025 | 345 | 404 |
| Q4 2025 | 428 | 350 |
| Q1 2026 | 439 | 411 |
| Q2 2026 | 487 | 434 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $228.6m | $151.2m | 0.66 |
| Q4 2025 | $245.2m | $154.2m | 0.63 |
| Q1 2026 | $196.1m | $154.4m | 0.79 |
| Q2 2026 | $291.0m | $215.3m | 0.74 |
Biggest buyers
| FMR LLC | Added | +3.3m |
| ACADIAN ASSET MANAGEMENT LLC | New | +414.7k |
| CITADEL ADVISORS LLC | Added | +295.0k |
| Nuveen, LLC | Added | +231.8k |
| CAPTRUST FINANCIAL ADVISORS | Added | +228.0k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Added | +199.6k |
| MORGAN STANLEY | Added | +196.5k |
| Qube Research & Technologies Ltd | Added | +150.4k |
| SAPIENT CAPITAL LLC | Added | +115.1k |
| CITIGROUP INC | Added | +100.8k |
Biggest sellers
| Holocene Advisors, LP | Reduced | -640.2k |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | -600.1k |
| HSBC HOLDINGS PLC | Reduced | -424.1k |
| Life Cycle Investment Partners Ltd | Reduced | -397.4k |
| LSV ASSET MANAGEMENT | Reduced | -387.2k |
| Bornite Capital Management LP | Sold out | -350.0k |
| Caisse de depot et placement du Quebec | Reduced | -311.7k |
| LORD, ABBETT & CO. LLC | Reduced | -220.7k |
| FIL Ltd | Reduced | -220.1k |
| Balyasny Asset Management L.P. | Reduced | -218.3k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $84.5m368.1k shares |
| JANE STREET GROUP, LLC | Added | $48.8m212.7k shares |
| CITADEL ADVISORS LLC | Added | $31.8m138.6k shares |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | Reduced | $27.5m119.4k shares |
| IMC-Chicago, LLC | Added | $17.5m76.2k shares |
| SIMPLEX TRADING, LLC | Added | $11.5m50.0k shares |
| Walleye Trading LLC | Reduced | $10.6m46.2k shares |
| JPMORGAN CHASE & CO | Unchanged | $8.8m37.5k shares |
| GOLDMAN SACHS GROUP INC | New | $8.0m35.0k shares |
| Alphadyne Asset Management LP | Reduced | $6.0m26.2k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $64.5m281.2k shares |
| JANE STREET GROUP, LLC | Added | $47.9m208.6k shares |
| CITADEL ADVISORS LLC | Added | $19.2m83.8k shares |
| IMC-Chicago, LLC | Added | $18.2m79.2k shares |
| Walleye Trading LLC | Reduced | $14.4m62.6k shares |
| JPMORGAN CHASE & CO | Unchanged | $8.8m37.5k shares |
| Alphadyne Asset Management LP | Reduced | $7.8m34.1k shares |
| CREDIT INDUSTRIEL ET COMMERCIAL | Unchanged | $5.2m22.5k shares |
| Verition Fund Management LLC | Added | $5.0m21.9k shares |
| CITIGROUP INC | Reduced | $5.0m21.6k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-02-05 | 7.8% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 7.1% |
| FMR LLC 13G · institution new · filed 2026-08-06 | 5.4% |
| STATE STREET CORP 13G · institution new · filed 2026-05-12 | 5.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 5 | $5.2m | — |
| Q1 2025 | 0 | — | 1 | $3.2m | — |
| Q2 2025 | 0 | — | 2 | $1.2m | — |
| Q3 2025 | 0 | — | 1 | $1.5m | — |
| Q4 2025 | 0 | — | 1 | $1.3m | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 5 | $7.6m | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-06-05 | Anderson James Stanley Senior Vice President | Sold | $2.7m10.0k shares |
| 2026-05-13 | Graham Christopher A Senior Vice President | Sold | $2.1m9.0k shares |
| 2026-05-12 | Poinsatte Richard A Senior Vice President | Sold | $538.5k2.3k shares |
| 2026-04-23 | Cornew Kenneth W. Director | Sold | $1.1m5.0k shares |
| 2026-04-23 | Alvarez Miguel Senior Vice President | Sold | $1.1m4.8k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.04% of their portfolio | 12.4m $2.8bn | Added +1.5k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 8.9m $2.0bn | Reduced -74.1k |
| FMR LLC 0.08% of their portfolio | 7.7m $1.8bn | Added +3.3m |
| STATE STREET CORP 0.05% of their portfolio | 7.4m $1.7bn | Reduced -137.5k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.07% of their portfolio | 6.8m $1.6bn | Reduced -53.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.05% of their portfolio | 3.8m $863.6m | Reduced -56.7k |
| Capital Research Global Investors 0.12% of their portfolio | 3.6m $835.2m | Added +9.0k |
| MORGAN STANLEY 0.04% of their portfolio | 3.3m $767.7m | Added +196.5k |
| NORGES BANK 0.06% of their portfolio | 2.5m $568.2m | Not comparable |
| Life Cycle Investment Partners Ltd 2.46% of their portfolio | 2.3m $527.5m | Reduced -397.4k |
| NORDEA INVESTMENT MANAGEMENT AB 0.42% of their portfolio | 2.2m $519.6m | Added +32.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.05% of their portfolio | 2.1m $488.9m | Added +8.5k |
| DIMENSIONAL FUND ADVISORS LP 0.08% of their portfolio | 2.0m $448.5m | Reduced -10.5k |
| Boston Partners 0.38% of their portfolio | 1.8m $423.6m | Added +79.3k |
| Invesco Ltd. 0.03% of their portfolio | 1.8m $422.9m | Reduced -192.7k |
| JPMORGAN CHASE & CO 0.02% of their portfolio | 1.7m $399.9m | Reduced -48.9k |
| Holocene Advisors, LP 0.87% of their portfolio | 1.6m $378.3m | Reduced -640.2k |
| GOLDMAN SACHS GROUP INC 0.04% of their portfolio | 1.5m $350.5m | Added +100.0k |
| NORTHERN TRUST CORP 0.04% of their portfolio | 1.5m $339.6m | Reduced -140.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.04% of their portfolio | 1.5m $333.2m | Reduced -26.5k |
| VICTORY CAPITAL MANAGEMENT INC 0.17% of their portfolio | 1.3m $309.0m | Reduced -600.1k |
| LORD, ABBETT & CO. LLC 0.80% of their portfolio | 1.2m $280.0m | Reduced -220.7k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.32% of their portfolio | 1.2m $270.8m | Added +90.8k |
| Nuveen, LLC 0.06% of their portfolio | 1.2m $269.2m | Added +231.8k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 1.2m $264.2m | Reduced -188.8k |
| ROYAL LONDON ASSET MANAGEMENT LTD 0.46% of their portfolio | 1.1m $248.5m | Reduced -16.6k |
| Robeco Institutional Asset Management B.V. 0.30% of their portfolio | 1.1m $248.0m | Reduced -116.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.04% of their portfolio | 1.1m $245.9m | Reduced -148.4k |
| Bank of New York Mellon Corp 0.03% of their portfolio | 920.2k $211.2m | Reduced -18.3k |
| FIL Ltd 0.14% of their portfolio | 829.7k $190.4m | Reduced -220.1k |
| CITADEL ADVISORS LLC 0.11% of their portfolio | 807.6k $185.3m | Added +295.0k |
| VANGUARD FIDUCIARY TRUST CO 0.04% of their portfolio | 763.7k $175.2m | Reduced -11.8k |
| Thrivent Financial for Lutherans 0.27% of their portfolio | 693.2k $159.1m | Reduced -208.2k |
| Legal & General Group Plc 0.03% of their portfolio | 634.4k $145.6m | Reduced -53.8k |
| HSBC HOLDINGS PLC 0.07% of their portfolio | 627.3k $144.4m | Reduced -424.1k |
| DEUTSCHE BANK AG\ 0.04% of their portfolio | 551.6k $126.6m | Reduced -52.1k |
| BESSEMER GROUP INC 0.17% of their portfolio | 542.9k $124.6m | Added +636 |
| STOREBRAND ASSET MANAGEMENT AS 0.28% of their portfolio | 503.0k $115.4m | Reduced -15.4k |
| STIFEL FINANCIAL CORP 0.09% of their portfolio | 494.4k $113.5m | Reduced -46.7k |
| Caisse de depot et placement du Quebec 0.15% of their portfolio | 450.1k $103.3m | Reduced -311.7k |
| SAPIENT CAPITAL LLC 1.35% of their portfolio | 447.7k $103.0m | Added +115.1k |
| NEUBERGER BERMAN GROUP LLC 0.07% of their portfolio | 437.0k $100.5m | Reduced -77.5k |
| ACADIAN ASSET MANAGEMENT LLC 0.11% of their portfolio | 414.7k $95.1m | New |
| AustralianSuper Pty Ltd 0.40% of their portfolio | 406.9k $93.4m | Unchanged |
| Qube Research & Technologies Ltd 0.10% of their portfolio | 394.1k $90.4m | Added +150.4k |
| Swiss National Bank 0.05% of their portfolio | 388.2k $89.1m | Reduced -18.9k |
| Bridgewater Associates, LP 0.36% of their portfolio | 378.5k $86.8m | Reduced -59.6k |
| UBS Group AG 0.01% of their portfolio | 362.2k $83.1m | Reduced -21.9k |
| AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 351.9k $80.7m | Added +9.5k |
| Allianz Asset Management GmbH 0.08% of their portfolio | 344.8k $78.2m | Added +380 |
| CITIGROUP INC 0.04% of their portfolio | 331.9k $76.2m | Added +100.8k |
| BARCLAYS PLC 0.02% of their portfolio | 331.2k $76.0m | Added +44.7k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.04% of their portfolio | 330.7k $75.9m | Added +18.0k |
| LSV ASSET MANAGEMENT 0.14% of their portfolio | 327.6k $75.2m | Reduced -387.2k |
| Amundi 0.02% of their portfolio | 325.5k $74.7m | Reduced -6.3k |
| Sumitomo Mitsui Trust Group, Inc. 0.04% of their portfolio | 307.4k $70.5m | Reduced -6.9k |
| Vanguard Global Advisers, LLC 0.03% of their portfolio | 297.4k $68.2m | Reduced -8.6k |
| ALLIANCEBERNSTEIN L.P. 0.02% of their portfolio | 296.8k $53.4m | Reduced -66.5k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.05% of their portfolio | 294.5k $67.6m | Reduced -27.2k |
| California Public Employees Retirement System 0.04% of their portfolio | 293.6k $67.4m | Reduced -4.6k |
| BANK OF MONTREAL /CAN/ 0.02% of their portfolio | 292.3k $67.1m | Added +21.8k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 286.7k $65.8m | Reduced -68.5k |
| CAPTRUST FINANCIAL ADVISORS 0.10% of their portfolio | 285.8k $65.6m | Added +228.0k |
| National Pension Service 0.04% of their portfolio | 279.6k $64.2m | Reduced -31.5k |
| DANSKE BANK A/S 0.12% of their portfolio | 272.9k $62.6m | Reduced -69.4k |
| VAN ECK ASSOCIATES CORP 0.04% of their portfolio | 272.6k $62.5m | Added +7.3k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.04% of their portfolio | 269.3k $61.8m | Added +24.7k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 267.2k $61.3m | Added +2.1k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 262.3k $60.2m | Added +33.0k |
| Connor, Clark & Lunn Investment Management Ltd. 0.11% of their portfolio | 258.0k $59.2m | Added +76.6k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 255.6k $58.7m | Added +63.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.03% of their portfolio | 251.6k $57.7m | Reduced -3.3k |
| RHUMBLINE ADVISERS 0.04% of their portfolio | 246.5k $56.6m | Reduced -9.3k |
| AEGON ASSET MANAGEMENT UK Plc 0.57% of their portfolio | 232.2k $53.3m | Reduced -25.7k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.22% of their portfolio | 224.6k $51.5m | Added +199.6k |
| JANE STREET GROUP, LLC 0.03% of their portfolio | 216.0k $49.6m | Added +81.0k |
| FIRST TRUST ADVISORS LP 0.03% of their portfolio | 203.2k $46.6m | Added +18.1k |
| Swedbank AB 0.04% of their portfolio | 198.0k $45.4m | Reduced -16.9k |
| Korea Investment CORP 0.08% of their portfolio | 194.5k $44.6m | Added +97.4k |
| Baird Financial Group, Inc. 0.06% of their portfolio | 187.9k $43.1m | Added +16.9k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.04% of their portfolio | 186.5k $42.8m | Added +24.9k |
| Aberdeen Group plc 0.06% of their portfolio | 172.3k $39.5m | Added +12.1k |
| WINMILL & CO. INC 8.57% of their portfolio | 168.7k $38.7m | Unchanged |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 164.6k $37.8m | Reduced -4.4k |
| Russell Investments Group, Ltd. 0.03% of their portfolio | 163.7k $37.7m | Added +51.9k |
| BI Asset Management Fondsmaeglerselskab A/S 0.28% of their portfolio | 155.8k $35.7m | Added +22.7k |
| Hosking Partners LLP 1.13% of their portfolio | 148.1k $34.0m | Reduced -15.5k |
| DekaBank Deutsche Girozentrale 0.04% of their portfolio | 142.9k $25.6m | Unchanged |
| LPL Financial LLC 0.01% of their portfolio | 137.5k $31.5m | Added +35.5k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 134.2k $30.8m | Reduced -55.2k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 133.5k $30.6m | Added +16.1k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.05% of their portfolio | 129.4k $29.7m | Reduced -2.2k |
| FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND 0.14% of their portfolio | 128.7k $29.5m | Added +30.8k |
| Ensign Peak Advisors, Inc 0.05% of their portfolio | 121.7k $27.9m | Reduced -4.1k |
| AVIVA PLC 0.04% of their portfolio | 120.5k $27.6m | Reduced -2.1k |
| Gotham Asset Management, LLC 0.06% of their portfolio | 119.6k $27.4m | Added +31.0k |
| NATIONAL BANK OF CANADA /FI/ 0.02% of their portfolio | 119.2k $27.4m | Reduced -5.6k |
| Ninety One UK Ltd 0.06% of their portfolio | 117.1k $26.9m | Reduced -35.6k |
| JENNISON ASSOCIATES LLC 0.02% of their portfolio | 116.9k $26.8m | Added +6.8k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.04% of their portfolio | 115.8k $26.6m | Reduced -87.2k |