Steel Dynamics 8-K Report, Regulation FD Disclosure (Sep 18, 2026)

Steel Dynamics, Inc. furnished a Form 8-K on September 18, 2026 (Item 7.01, Regulation FD) attaching a September 17, 2026 press release that provides third quarter 2026 earnings guidance of $5.34 to $5.38^a per diluted share.

The company compares this with sequential second quarter 2026 earnings of $3.69^b per diluted share and prior year third quarter earnings of $2.74 per diluted share. The information is furnished, not filed, under Section 18 of the Exchange Act. By segment, the company expects steel operations profitability to be significantly higher than in the second quarter, driven by metal margin expansion across the platform and record shipments, with average realized steel selling values expected to rise alongside lower scrap costs.

Metals recycling earnings are expected to be lower sequentially due to lower metal spreads and modestly lower shipments. Steel fabrication earnings are expected to improve modestly, and the current backlog is described as nearly 50 percent higher than prior-year third quarter levels and extending through the first quarter of 2027. Aluminum earnings are expected to improve meaningfully on higher shipments, with the first of two CASH lines at the Columbus, Mississippi flat rolled products mill operating and expected to ship commercial material in the fourth quarter.

The company also reported repurchasing $261 million^c, or just under one percent, of its common stock so far in the third quarter of 2026, and plans to release third quarter earnings after the market closes on October 19, 2026, with a conference call the next day at 11:00 a.m. Eastern Daylight Time.