STEEL DYNAMICS INC — Director's Dealing 2012

Feb 15, 2012

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: STEEL DYNAMICS INC (STLD)
CIK: 0001022671
Period of Report: 2011-12-31

Reporting Person: MARCUCCILLI JAMES C (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-06-30	Deferred Stock Units	$0	A	33	Acquired		Common Stock (33)	Direct
2011-09-30	Deferred Stock Units	$0	A	48	Acquired		Common Stock (48)	Direct
2011-12-30	Deferred Stock Units	$0	A	36	Acquired		Common Stock (36)	Direct

Footnotes

F1: Exempt award, pursuant to registrant's 2006 Equity Incentive Plan, of 33 additional Deferred Stock Units (DSUs) on June 30, an additional 48 on September 30 and an additional 36 on December 31, 2011, determined by dividing the dollar amount of deemed dividends on each of the foregoing dates, issued in respect of reporting person's underlying 5,264 DSUs originally awarded June 1, 2011 and previously reported on Form 4 on June 3, 2011, divided by the closing price of Issuer's common stock on the day preceding each dividend record date.

F2: 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.

F3: Totals shown on each line include the same 5,264 originally issued DSUs plus the cumulative additional DSUs issued in respect of the deemed dividend following each dividend date.