STEEL DYNAMICS INC — Director's Dealing 2026

Feb 24, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: STEEL DYNAMICS INC (STLD)
CIK: 0001022671
Period of Report: 2026-02-20

Reporting Person: MILLETT MARK D (Director, Chairman & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-20	Common Stock	A	12662	—	Acquired	3001919	Direct

Footnotes

F1: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Issuer's equity incentive plan, for no consideration, and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). The restricted units vest over a four year period as follows: 1/3 on 02/20/2028, 1/3 on 02/20/2029 and the final 1/3 on 02/20/2030, following which settlement is to be made solely in the same number of shares of the Issuer's common stock shown in Column 4.