Core Natural Resources (CNR) posts Q3 2025 results, presentation

Q: Who signed the report for CNR?

It was signed by Miteshkumar B. Thakkar, Chief Financial Officer and President.

Core Natural Resources, Inc. furnished an update noting it issued a press release announcing its 2025 third‑quarter results and posted an investor presentation.

Accepted by SEC EDGAR 11/06/2025 - 06:54 AM EST

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)How Sentiment works

Sentiment and the balance of points

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Form Type

8-K

Rhea-AI Filing Summary

Core Natural Resources, Inc. furnished an update noting it issued a press release announcing its 2025 third‑quarter results and posted an investor presentation. Both materials are available as exhibits and on the company’s website.

The information is furnished, not filed, and is not subject to Section 18 liabilities. Exhibit 99.1 contains the press release, and Exhibit 99.2 contains the investor presentation.

8-K Event Classification

3 items: 2.02, 7.01, 9.01

3 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 7.01 Regulation FD Disclosure Disclosure

Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Core Natural Resources (CNR) disclose in this 8-K?

The company furnished a press release announcing its 2025 third‑quarter results and an investor presentation.

Where can I find CNR’s Q3 2025 materials?

They are included as Exhibit 99.1 (press release) and Exhibit 99.2 (investor presentation) and posted on the company’s website.

Are the disclosures considered filed or furnished?

The information is considered “furnished” and not “filed,” and is not subject to Section 18 liabilities.

Which exhibits are attached to the 8-K?

Exhibit 99.1 is the press release; Exhibit 99.2 is the investor presentation; Exhibit 104 is the cover page Inline XBRL file.

What is CNR’s trading symbol and exchange?

The common stock trades on the New York Stock Exchange under the symbol CNR.

Who signed the report for CNR?

It was signed by Miteshkumar B. Thakkar, Chief Financial Officer and President.

When were the materials dated?

The press release and investor presentation are dated November 6, 2025.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): November 6, 2025

Core Natural Resources, Inc.

(Exact name of registrant as specified in its charter)

Delaware

001-38147

82-1954058

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

275 Technology Drive Suite 101

Canonsburg, Pennsylvania 15317

(Address of principal executive offices)

(Zip code)

Registrant's telephone number, including area code:

(724) 416-8300

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.01 par value	CNR	New York Stock Exchange

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

Core Natural Resources, Inc. (the "Company," "we," "us," or "our") issued a press release on November 6, 2025 announcing its 2025 third quarter results. A copy of the press release is attached to this Form 8-K as Exhibit 99.1.

Please refer to our website at www.corenaturalresources.com for additional information regarding the Company. For example, periodically during the quarter, we may provide investor presentations, which would appear on our website in the Investors section.

Item 7.01 Regulation FD Disclosure.

On November 6, 2025, the Company posted an investor presentation to its website, which is furnished as Exhibit 99.2 hereto and is incorporated herein by reference.

The information in this Current Report and the exhibits hereto shall be considered “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933 as amended, or the Exchange Act, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

The response to Item 2.02 is incorporated herein by reference to this Item 7.01.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit 99.1 Press release of Core Natural Resources, Inc. dated November 6, 2025

Exhibit 99.2 Core Natural Resources, Inc. Investor Presentation dated November 6, 2025

Exhibit 104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


			Core Natural Resources, Inc.
			(Registrant)
			By:			/s/ MITESHKUMAR B. THAKKAR
						Miteshkumar B. Thakkar
						Chief Financial Officer and President

Dated: November 6, 2025

Source: View Original Filing on SEC EDGAR