STEEL DYNAMICS INC — Director's Dealing 2013

Apr 15, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: STEEL DYNAMICS INC (STLD)
CIK: 0001022671
Period of Report: 2013-04-12

Reporting Person: MARCUCCILLI JAMES C (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-04-12	Common Stock	A	14390	—	Acquired	37742	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-04-12	Deferred Stock Units	$0	J	5546	Disposed		Common Stock (5546)	Direct
2013-04-12	Deferred Stock Units	$0	J	8739	Disposed		Common Stock (8739)	Direct

Footnotes

F1: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent reinvestment on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. Amended and Restated 2006 Equity Incentive Plan. This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2: Reportable as directly owned shares of common stock, rather than as a 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).

F3: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

F4: Reflects the addition of DSUs previously reported in Table II of Form 4, and hereby moved from Table II to Table I, by virtue of footnote (2).

F5: The DSUs previously reported in Table II have now been moved to Table I and reported as directly owned shares of common stock and will be reported as such in the future until the underlying DSUs are settled at the end of their deferral period.

F6: The reporting person, by prior election, chose to receive his common stock, when converted from DSUs, at the expiration of one year following the reporting person's termination of service as a director.