SEC Filing Summary for Steel Dynamics Inc.

Bradley S. Seaman, a director at Steel Dynamics Inc. (STLD), acquired 105 shares of common stock on October 9, 2026. This acquisition, valued at a nominal price, increases his post-transaction holdings to 51,705 shares. The shares acquired are related to additional deferred stock units (DSUs) issued as a dividend equivalent under the Company's 2023 Equity Incentive Plan. This transaction is exempt from certain reporting requirements and insider trading provisions due to its dividend reinvestment feature and specific plan exemptions. The shares are reported as directly owned common stock.