# EDGAR Filing Document

**Accession Number:** 0000764065
**File Stem:** 0000764065-26-000055
**Filing Date:** 2026-4
**Character Count:** 2805
**Document Hash:** 55ed0c7a0502f2dab3da024b3fa1a925
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000764065-26-000055.hdr.sgml**: 20260402

**ACCESSION NUMBER**: 0000764065-26-000055

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 6

**FILED AS OF DATE**: 20260402

**DATE AS OF CHANGE**: 20260402

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CLEVELAND-CLIFFS INC.
- **CENTRAL INDEX KEY:** 0000764065
- **STANDARD INDUSTRIAL CLASSIFICATION:** METAL MINING [1000]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 341464672
- **STATE OF INCORPORATION:** OH
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-08944
- **FILM NUMBER:** 26834948

**BUSINESS ADDRESS:**
- **STREET 1:** 200 PUBLIC SQUARE
- **STREET 2:** STE. 3300
- **CITY:** CLEVELAND
- **STATE:** OH
- **ZIP:** 44114-2315
- **BUSINESS PHONE:** 216-694-5700

**MAIL ADDRESS:**
- **STREET 1:** 200 PUBLIC SQUARE
- **STREET 2:** STE. 3300
- **CITY:** CLEVELAND
- **STATE:** OH
- **ZIP:** 44114-2315

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CLIFFS NATURAL RESOURCES INC.
- **DATE OF NAME CHANGE:** 20081015

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CLEVELAND CLIFFS INC
- **DATE OF NAME CHANGE:** 19920703

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

Washington, D.C. 20549

**SCHEDULE 14A**

**(RULE 14a-101)**

INFORMATION REQUIRED IN

PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

(Amendment No. ___)

☒ Filed by the Registrant ☐ Filed by a Party other than the Registrant

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| | |
|:---|:---|
| Check the appropriate box: | Check the appropriate box: |
| ☐ | Preliminary Proxy Statement |
| ☐ | **Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** |
| ☐ | Definitive Proxy Statement |
| ☒ | Definitive Additional Materials |
| ☐ | Soliciting Material Pursuant to §240.14a-12 |

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![clf2026defa14aprimarylogo.jpg](clf2026defa14aprimarylogo.jpg)

**CLEVELAND-CLIFFS INC.**

*(Name of Registrant as Specified in its Charter)*

*(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)*

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| | |
|:---|:---|
| Payment of Filing Fee (Check all boxes that apply): | Payment of Filing Fee (Check all boxes that apply): |
| ☒ | No fee required |
| ☐ | Fee paid previously with preliminary materials |
| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11. |

---

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![clf2026defa14anoticecard004a.jpg](clf2026defa14anoticecard004a.jpg)

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