STEEL DYNAMICS INC — Director's Dealing 2010

Feb 4, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: STEEL DYNAMICS INC (STLD)
CIK: 0001022671
Period of Report: 2010-02-02

Reporting Person: Wagler Theresa E (Executive Vice President & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-02-02	Common Stock	F	4277	$15.18	Disposed	73561	Direct

Footnotes

F1: Payment of withholding tax liability by issuer's withholding of securities incident to the reporting person's receipt or vesting of a security in accordance with Rule 16b-3.

F2: Reflects adjustment of aggregate share total carried over from Column 5 of Reporting Person's prior Form 4 Report, to correct for beneficial ownership of both vested and unvested shares.