Miguel Alvarez - 23 Feb 2026 Form 4 Insider Report for STEEL DYNAMICS INC (STLD)

Role: Senior Vice President
Signature: /s/ Miguel Alvarez
Issuer symbol: STLD
Transactions as of: 23 Feb 2026
Net transactions value: -$691,997
Form type: 4
Filing time: 25 Feb 2026, 13:08:22 UTC
Previous filing: 24 Feb 2026
Next filing: 13 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Alvarez Miguel	Senior Vice President	7575 W. JEFFERSON BLVD., FORT WAYNE	/s/ Miguel Alvarez	25 Feb 2026	0001767177

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	STLD	Common Stock	Tax liability	$184,881	-956	-0.79%	$193.39	120,435	23 Feb 2026	Direct	F1
transaction	STLD	Common Stock	Tax liability	$185,268	-958	-0.8%	$193.39	119,477	23 Feb 2026	Direct	F1
transaction	STLD	Common Stock	Tax liability	$321,848	-1,642	-1.4%	$196.01	117,835	24 Feb 2026	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3.