Company (CENX) insider plans 300,000-share NASDAQ sale via J.P. Morgan

Rhea-AI Filing Summary

A holder of CENX common stock has filed a notice to sell 300,000 shares through J.P. Morgan Securities LLC on NASDAQ, with an aggregate market value of $14,490,000. These shares are part of the issuer’s common stock, which had 93,341,969 shares outstanding at the time of the notice. The shares were acquired on 12/31/2025 via RSU vesting as compensation from the issuer, and the approximate sale date listed is 01/23/2026.

Insights

Equity markets and insider-transactions analyst

Form 144 shows a planned sale of 300,000 CENX shares from RSU vesting.

This notice describes a planned sale of 300,000 shares of CENX common stock with an aggregate market value of $14,490,000. The shares are to be sold on NASDAQ through J.P. Morgan Securities LLC, indicating a broker-facilitated transaction rather than a private block outside the market. The filing states that CENX had 93,341,969 shares outstanding, giving context for the relative size of this potential sale.

The securities were acquired on 12/31/2025 via RSU vesting, labeled as compensation from the issuer, which is a common mechanism for equity-based pay. The approximate sale date listed is 01/23/2026, with the transaction relying on Rule 144, which governs resales of restricted or control securities. Overall, this is a routine disclosure of a planned sale by an affiliate or large holder, and by itself does not necessarily signal a change in the underlying business.

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 Stock	J.P. Morgan Securities LLC 270 Park Avenue - 10th Floor New York NY 10017	300000	14490000	93341969	01/23/2026	NASDAQ

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 Stock	12/31/2025	RSU Vesting	Issuer			300000	12/31/2025	Compensation

* 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

How many CENX shares are planned to be sold under this Form 144?

The notice states that 300,000 shares of CENX common stock are planned to be sold, with an aggregate market value of $14,490,000.

How were the CENX shares being sold under Form 144 acquired?

The 300,000 CENX common shares were acquired on 12/31/2025 through RSU vesting from the issuer as compensation.

What is the context for the size of this CENX Form 144 sale?

The filing reports 93,341,969 CENX common shares outstanding, providing a baseline to gauge the relative size of the 300,000-share planned sale.

Which broker is handling the planned CENX share sale and on which exchange?

The planned sale will be handled by J.P. Morgan Securities LLC and the shares are to be sold on the NASDAQ exchange.

When is the approximate sale date for the CENX shares in this Form 144?

The approximate sale date listed for the 300,000 CENX common shares is 01/23/2026.

What representation does the seller make in this CENX Form 144 filing?

By signing the notice, the seller represents that they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed.