Cliffs(CLF) - 2023 Q1 - Quarterly Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number: 1-8944 CLEVELAND-CLIFFS INC. (Exact Name of Registrant as Specified in Its Charter) Ohio 34-1464672 (State or Other Jurisdiction of (I.R.S. ...