[144] CENTURY ALUMINUM CO SEC Filing

Rhea-AI Filing Summary

CENTURY ALUMINUM CO (CENX) filed a Form 144 to report a proposed sale of 16,450 shares of common stock through Charles Schwab & Co., scheduled approximately for 09/15/2025. The filing shows an aggregate market value of $433,457.50 and states there are 93,339,121 shares outstanding. The shares were acquired on 12/30/2022 as restricted stock grants from the issuer and were issued for services rendered. The filer certifies they are not aware of undisclosed material adverse information.

Positive

• Disclosure compliance: The filer provided required details (broker, share count, aggregate value, acquisition date, and nature of acquisition).
• No recent sales reported: The form states "Nothing to Report" for securities sold in the past three months, indicating no recent dispositions by the filer.

Negative

• None.

Insights

Securities Compliance Analyst

TL;DR: Routine Rule 144 notice reporting a proposed sale of restricted shares via a broker, consistent with standard insider sale disclosures.

The Form 144 documents a planned sale of 16,450 common shares through Charles Schwab & Co., with acquisition recorded as restricted stock grants on 12/30/2022 and consideration listed as services rendered. The filing meets disclosure requirements by stating the broker, quantity, aggregate market value, and approximate sale date. No sales in the prior three months are reported. The filing includes the standard representation that the seller has no undisclosed material adverse information.

Equity Capital Markets Specialist

TL;DR: This is a routine insider sale notification; it alerts the market but contains no new operational or financial details about the issuer.

The notice identifies logistical details needed for market transparency: broker, timing, share count, and origin of the shares (restricted grant). It does not disclose any change in company operations, earnings, or indebtedness. As a trade-planning disclosure, it is primarily procedural and unlikely to be material to valuation absent additional context.

09/15/2025 - 03:50 PM

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	Charles Schwab & Co 3000 Schwab Way Westlake TX 76262	16450	433457.50	93339121	09/15/2025	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	12/30/2022	Restricted Stock Grants	Issuer			16450	12/30/2022	Services Rendered

* 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

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 Century Aluminum's Form 144 disclose about the planned sale (CENX)?

The Form 144 reports a proposed sale of 16,450 common shares through Charles Schwab & Co. with an approximate sale date of 09/15/2025 and an aggregate market value of $433,457.50.

How were the shares that will be sold by CENX acquired?

The shares were acquired on 12/30/2022 as restricted stock grants from the issuer and are listed as issued for services rendered.

Does the Form 144 show any sales by this person in the past three months?

No. The filing states "Nothing to Report" under securities sold during the past three months.

How many shares outstanding does the filing list for Century Aluminum?

The filing lists 93,339,121 shares outstanding.

What representation does the filer make about material information?

By signing the notice, the filer represents they do not know any material adverse information about the issuer that has not been publicly disclosed.