Steel Dynamics Inc.

STLD·NASDAQ·$250.49Share Price as of 11/2·$36BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/23/26 10-QQ2 ended 06/30/2607/28/26 10-QQ1 ended 03/31/2604/27/26 10-KFY 202502/27/26 10-QQ3 ended 09/30/2510/24/25

Disclosures

8-KCurrent report10/20/26 8-KCurrent report10/19/26 8-KCurrent report09/18/26 8-K/ACurrent report (amended)08/18/26 8-KCurrent report08/14/26

Prospectuses and Registrations

S-3ASRAutomatic shelf registration12/12/25 424B2Prospectus for primary offering11/19/25 FWPFree writing prospectus11/19/25 424B5Prospectus supplement11/18/25 FWPFree writing prospectus11/18/25

Proxies

DEF 14ADefinitive proxy03/27/26 DEFA14AAdditional proxy materials03/27/26 DEF 14ADefinitive proxy03/13/25 DEFA14AAdditional proxy materials03/13/25 DEF 14ADefinitive proxy03/28/24

Ownership

Form 4Insider transaction10/09/26 Form 4Insider transaction10/09/26 Form 4Insider transaction10/09/26 Form 4Insider transaction10/09/26 Form 4Insider transaction10/09/26

Other

SDConflict Minerals disclosure06/01/26 ARSAnnual report to shareholders03/27/26 SDConflict Minerals disclosure05/30/25 ARSAnnual report to shareholders03/13/25 SDConflict Minerals disclosure05/29/24