144 0001411393 XXXXXXXX LIVE 0001022671 STEEL DYNAMICS INC 000-21719 7575 W JEFFERSON BLVD FORT WAYNE IN 46804 260 969 3500 Shaheen Gabriel Former Director Common Stock $0.0025 Par Value Morgan Stanley Smith Barney LLC

1 New York Plaza 8th Floor New York NY 10004

1526 394043.72 144212781 06/03/2026 NASDAQ GLOBAL SELECT Common Stock $0.0025 Par Value 06/01/2026 Deferred Stock Award Steel Dynamics, Inc. N 1526 06/01/2026 Compensation Y 06/02/2026 /s/ Gabriel Shaheen