# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000764065-25-000149
Filing Date
2025-10-22
Accepted
2025-10-22 16:24:15
Documents
116
Period of Report
2025-09-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | clf-20250930.htm iXBRL | 10-Q | 1897146
2 | EX-4.1 | clf-2025093010xqex41.htm | EX-4.1 | 769751
3 | EX-4.2 | clf-2025093010xqex42.htm | EX-4.2 | 141106
4 | EX-22 | clf-2025093010xqex22.htm | EX-22 | 34646
5 | EX-31.1 | clf-2025093010xqex311.htm | EX-31.1 | 11037
6 | EX-31.2 | clf-2025093010xqex312.htm | EX-31.2 | 10933
7 | EX-32.1 | clf-2025093010xqex321.htm | EX-32.1 | 6463
8 | EX-32.2 | clf-2025093010xqex322.htm | EX-32.2 | 6491
9 | EX-95 | clf-2025093010xqex95.htm | EX-95 | 100563
15 |  | clf-20250930_g1.jpg | GRAPHIC | 19593
16 |  | clf-20250930_g2.jpg | GRAPHIC | 19500
17 |  | clf-20250930_g3.jpg | GRAPHIC | 18730
18 |  | clf-20250930_g4.jpg | GRAPHIC | 16025
19 |  | clf-20250930_g5.jpg | GRAPHIC | 18113
20 |  | clf-20250930_g6.jpg | GRAPHIC | 12547
21 |  | clf-20250930_g7.jpg | GRAPHIC | 10205
22 |  | clf-20250930_g8.jpg | GRAPHIC | 8821
23 |  | clf-20250930_g9.jpg | GRAPHIC | 13732
| Complete submission text file | 0000764065-25-000149.txt |  | 12445943

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
10 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | clf-20250930.xsd | EX-101.SCH | 66224
11 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | clf-20250930_cal.xml | EX-101.CAL | 79738
12 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | clf-20250930_def.xml | EX-101.DEF | 335805
13 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | clf-20250930_lab.xml | EX-101.LAB | 828741
14 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | clf-20250930_pre.xml | EX-101.PRE | 604988
118 | EXTRACTED XBRL INSTANCE DOCUMENT | clf-20250930_htm.xml | XML | 1885438

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.: 251410404
SIC: 1000 Metal Mining
(CF Office: 01 Energy & Transportation)