CNR files Form 144 to sell 2,500 common shares via Morgan Stanley

Rhea-AI Filing Summary

Core Natural Resources, Inc. filed a Form 144 notifying the proposed sale of 2,500 shares of common stock through Morgan Stanley Smith Barney LLC on or about 10/03/2025. The filing lists an aggregate market value of $214,500.00 and indicates 51,471,519 shares outstanding for the issuer. The shares were acquired on 12/12/2019 as Restricted and Performance Stock Units, and no sales by the holder in the past three months are reported. The filer attests they are not aware of undisclosed material adverse information and the sale is being notified under Rule 144.

Positive

• Sale notified under Rule 144, providing regulatory transparency
• Broker identified as Morgan Stanley Smith Barney LLC enabling orderly execution
• Shares acquired as Restricted and Performance Stock Units on 12/12/2019, documented in the filing

Negative

• None.

Insights

Securities Compliance Analyst

Form 144 notifies a planned Rule 144 sale of 2,500 shares via a broker.

The filing is procedural: it records a proposed sale under Rule 144 and includes the broker name, intended sale date, and aggregate market value of $214,500.00. It also documents the acquisition as Restricted and Performance Stock Units on 12/12/2019, which is relevant to Rule 144 eligibility and holding-period considerations.

The filer certifies no undisclosed material adverse information; that statement is standard and required. There are no disclosures of other sales in the prior three months in this filing.

Equity Trading Analyst

The proposed transaction is small relative to total shares outstanding and scheduled through a major broker.

The notice lists an intended sale through Morgan Stanley Smith Barney LLC and provides an approximate sale date of 10/03/2025, which helps trading desks plan order execution. The aggregate value reported is $214,500.00, which is the only transaction-specific market metric provided.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	2500	214500.00	51471519	10/03/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	12/12/2019	Restricted and Performance Stock Units	Issuer			2500	12/12/2019	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Core Natural Resources (CNR) plan to sell?

The filing notifies a proposed sale of 2,500 shares of common stock.

When is the sale approximately scheduled?

The approximate date of sale listed is 10/03/2025.

What is the reported aggregate market value of the proposed sale?

The aggregate market value is reported as $214,500.00.

Through which broker will the shares be sold?

The broker named in the filing is Morgan Stanley Smith Barney LLC.

How and when were the securities acquired?

The 2,500 shares were acquired on 12/12/2019 as Restricted and Performance Stock Units.

Does the filing report other sales by the seller in the past three months?

No; the filing states Nothing to Report for securities sold during the past three months.