Jennifer L. Hamann - 06 Nov 2025 Form 4 Insider Report for STEEL DYNAMICS INC (STLD)

Role: Director
Signature: /s/ Theresa E. Wagler by Power of Attorney
Issuer symbol: STLD
Transactions as of: 06 Nov 2025
Transactions value $: $0
Form type: 4
Filing time: 06 Nov 2025, 16:00:16 UTC
Previous filing: 14 Oct 2025
Next filing: 04 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Hamann Jennifer L	Director	555 RIVERFRONT PLZ #803, OMAHA	/s/ Theresa E. Wagler by Power of Attorney	06 Nov 2025	0001798280

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	STLD	Common Stock	Award	$0	+122	+2.88%	$0.00	4.37K	06 Nov 2025	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Issued as deferred stock units (DSUs) in connection with reporting person's retainer, as a director, under the Company's 2023 Equity Incentive Plan and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). These DSUs are reportable, however, as directly owned shares of common stock, rather than as derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in common stock. (See Lincoln National Corp. (March 20, 1992) (Q.3)

Content

Issued as deferred stock units (DSUs) in connection with reporting person's retainer, as a director, under the Company's 2023 Equity Incentive Plan and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). These DSUs are reportable, however, as directly owned shares of common stock, rather than as derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in common stock. (See Lincoln National Corp. (March 20, 1992) (Q.3)