As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

  2:19pm† Millett Mark D                    4          Dir.,Off.²  1:4K   Steel Dynamics Inc.               Newsfile Corp./FA        
 5/16/24  Graham Christopher A              4          Officer²    1:6K   Steel Dynamics Inc.               Newsfile Corp./FA        
 5/15/24  Graham Christopher A              144                    1:5K   Steel Dynamics Inc.                                        
 5/14/24  Steel Dynamics Inc.               8-K:5,8,9    5/9/24   11:242K                                   Toppan Merrill/FA        
 5/10/24  Steel Dynamics Inc.               10-Q        3/31/24   50:6.7M                                   Toppan Merrill Bridge/FA 
 5/10/24  Sierra Luis Manuel                4          Director²   1:4K   Steel Dynamics Inc.               Newsfile Corp./FA        
  5/1/24  Alvarez Miguel                    4          Officer²    1:10K  Steel Dynamics Inc.               Newsfile Corp./FA        
  5/1/24  Bickford Chad                     4          Officer²    1:4K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/24/24  Steel Dynamics Inc.               8-K:2,9     4/23/24   11:407K                                   Toppan Merrill/FA        
 4/15/24  Teets Richard P Jr.               4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/15/24  Sonnenberg Steven Alan            4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/15/24  Sierra Luis Manuel                4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/15/24  Shaheen Gabriel                   4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/15/24  Seaman Bradley S                  4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/15/24  Marcuccilli James C               4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/15/24  Hamann Jennifer L                 4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/15/24  Dolan Traci M                     4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/15/24  Cornew Kenneth W.                 4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/15/24  Bargabos Sheree L                 4          Director²   1:5K   Steel Dynamics Inc.               Newsfile Corp./FA        
 4/10/24  Bickford Chad                     3          Officer²    1:3K   Steel Dynamics Inc.               Newsfile Corp./FA        

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†	The Filing’s time of SEC acceptance (U.S. Eastern Time).  The SEC’s Filings System is “open” Monday through Friday from 6am to 10pm ET. Because the SEC “closes” at 5:30pm ET, most subsequently-accepted Filings won’t be released to the public until sometime after 6am ET the next day.
¹	Filing/Form Types:
	3	Initial Statement of Beneficial Ownership of Securities by an Insider — Form 3 { The Filer is an Insider² of the Issuer }.
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
	8-K	Current Report — Form 8-K { Item 1: Business & Operations;  2: Financial Info;  3: Securities & Trading;  4: Accountants & Accounting;  5: Governance & Management;  6: Asset-Backed Securities;  7: Disclosures;  8: Events;  9: Financials }.
	10-Q	Quarterly Report — Form 10-Q.
	144	Notice of a Proposed Sale of Securities by an Insider — Form 144 { The Filer is an Insider² of the Issuer }.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.