X0306 4 2022-03-03 0001022671 STEEL DYNAMICS INC STLD 0001607477 Graham Christopher A 7575 W. JEFFERSON BLVD. FORT WAYNE IN 46804 0 1 0 0 Senior Vice President Common Stock 2022-03-03 4 S 0 4425 76.51 D 79071 D Common Stock 2022-03-04 4 M 0 3745 35.76 A 82816 D Common Stock 2022-03-04 4 D 0 3745 77.09 D 79071 D Common Stock 2022-03-04 4 M 0 8230 29.13 A 87301 D Common Stock 2022-03-04 4 D 0 8230 77.09 D 79071 D Common Stock 2022-03-04 4 M 0 5189 42.83 A 84260 D Common Stock 2022-03-04 4 D 0 5189 77.09 D 79071 D Stock Appreciation Right 35.76 2022-03-04 4 M 0 3745 0 D 2020-02-11 2029-02-11 Common Stock 3745 0 D Stock Appreciation Right 29.13 2022-03-04 4 M 0 8230 0 D 2021-02-20 2030-02-20 Common Stock 8230 9853 D Stock Appreciation Right 42.83 2022-03-04 4 M 0 5189 0 D 2022-02-24 2031-02-24 Common Stock 5189 10377 D Deemed acquisition of underlying shares from issuer by Reporting Person, upon exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d), approved in advance by a Committee comprised solely of two or more Non-Employee directors; also exempt pursuant to Rule 16b-6(b). Deemed disposition of underlying shares by Reporting Person to issuer upon cash-settled exercise of stock appreciation rights, approved in advance by a Committee comprised solely of two or more Non-Employee directors, exempt from Section 16(b) pursuant to Rule 16b-3(d) and Rule 16b-3e. Exempt exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d). Christopher A. Graham 2022-03-04