Poinsatte Richard A plan to sell securities of STEEL DYNAMICS INC under Form 144

Poinsatte Richard A filed Form 144 to notify SEC of plan to sell 2300 units of STEEL DYNAMICS INC securities around 2026-05-12, with aggregate market value of $542,731.00. The total outstanding units is 144212781.0. The amount planned to be sold represents 0.00% of total outstanding units;