Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000764065-26-000070
Filing Date
2026-04-21
Accepted
2026-04-21 16:43:08
Documents
106
Period of Report
2026-03-31

Document Format Files

Seq Description Document Type Size
1 10-Q clf-20260331.htm   iXBRL 10-Q 1305195
2 EX-10.1 clf-2026033110xqex101.htm EX-10.1 80375
3 EX-10.2 clf-2026033110xqex102.htm EX-10.2 82711
4 EX-10.3 clf-2026033110xqex103.htm EX-10.3 97689
5 EX-10.4 clf-2026033110xqex104.htm EX-10.4 100463
6 EX-22 clf-2026033110xqex22.htm EX-22 34041
7 EX-31.1 clf-2026033110xqex311.htm EX-31.1 11035
8 EX-31.2 clf-2026033110xqex312.htm EX-31.2 10931
9 EX-32.1 clf-2026033110xqex321.htm EX-32.1 6457
10 EX-32.2 clf-2026033110xqex322.htm EX-32.2 6486
11 EX-95 clf-2026033110xqex95.htm EX-95 100532
17 clf-20260331_g1.jpg GRAPHIC 19593
18 clf-20260331_g2.jpg GRAPHIC 9023
19 clf-20260331_g3.jpg GRAPHIC 7700
20 clf-20260331_g4.jpg GRAPHIC 7028
21 clf-20260331_g5.jpg GRAPHIC 9184
  Complete submission text file 0000764065-26-000070.txt   8882185

Data Files

Seq Description Document Type Size
12 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT clf-20260331.xsd EX-101.SCH 53956
13 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT clf-20260331_cal.xml EX-101.CAL 75160
14 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT clf-20260331_def.xml EX-101.DEF 223111
15 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT clf-20260331_lab.xml EX-101.LAB 691899
16 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT clf-20260331_pre.xml EX-101.PRE 485707
110 EXTRACTED XBRL INSTANCE DOCUMENT clf-20260331_htm.xml XML 1247454
Mailing Address 200 PUBLIC SQUARE STE. 3300 CLEVELAND OH 44114-2315
Business Address 200 PUBLIC SQUARE STE. 3300 CLEVELAND OH 44114-2315 216-694-5700
CLEVELAND-CLIFFS INC. (Filer) CIK: 0000764065 (see all company filings)

EIN.: 341464672 | State of Incorp.: OH | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-08944 | Film No.: 26880114
SIC: 1000 Metal Mining
(CF Office: 01 Energy & Transportation)