{"url_path":"/sec/stld/proxy/2026-03-27/000110465926035827","section_key":"body","section_title":"DEFA14A body","topic":"sec","document":{"doc_type":"DEFA14A","doc_date":"2026-03-27","source_url":"https://www.sec.gov/Archives/edgar/data/1022671/0001104659-26-035827-index.html","accession_number":"0001104659-26-035827","cik":"0001022671","ticker":"STLD","issuer_name":"STEEL DYNAMICS INC","edgar_url":"https://www.sec.gov/Archives/edgar/data/1022671/0001104659-26-035827-index.html","primary_entity_key":"0001022671","primary_entity_name":"STEEL DYNAMICS INC"},"word_count":147,"has_tables":true,"body_markdown":"DEFA14A\n1\nstld-20260325xdefa14a.htm\nDEFA14A\n\n​\n\n**UNITED STATES**\n\n**SECURITIES AND EXCHANGE COMMISSION**\n\n**Washington, D.C. 20549**\n\n​\n\n**SCHEDULE 14A**\n\n​\n\n**Proxy Statement Pursuant to Section 14(a) of**\n\n**the Securities Exchange Act of 1934 (Amendment No.     )**\n\n​\n\nFiled by the Registrant  ☒\n\n​\n\nFiled by a Party other than the Registrant  ☐\n\n​\n\nCheck the appropriate box:\n\n☐\n\nPreliminary Proxy Statement\n\n☐\n\nConfidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))\n\n☐\n\nDefinitive Proxy Statement\n\n☒\n\nDefinitive Additional Materials\n\n☐\n\nSoliciting Material under §240.14a-12\n\n​\n\n**Steel Dynamics**\n\n(Name of Registrant as Specified in Its Charter)\n\n​\n\n​\n\n(Name of Person(s) Filing Proxy Statement, if other than the Registrant)\n\n​\n\nPayment of Filing Fee (Check the appropriate box):\n\n☒\n\nNo fee required.\n\n☐\n\nFee paid previously with preliminary materials.\n\n☐\n\nFee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11."}