KALU Rule 144 notice for 5,000 shares

KALU Rule 144 notice: The filing lists 5,000 shares of common stock connected to a Rule 144 sale by West Family Trust.

Rhea-AI Filing Summary

KALU Rule 144 notice: The filing lists 5,000 shares of common stock connected to a Rule 144 sale by West Family Trust. The trust reported a sale dated 02/23/2026 with a reported value of $608,616.63. Additional rows show a 5,000-share entry tied to compensation dated 03/05/2024.

Insights

Securities Compliance Attorney

Routine Rule 144 notice for a trust sale of 5,000 shares.

Rule 144 notices are procedural filings that report intended resales of restricted or control securities under resale conditions. The filing records a 5,000-share entry and a sale by West Family Trust on 02/23/2026 with a dollar amount listed.

Timing, resale method, and whether the shares were short-swing or subject to volume limitations are not detailed in the excerpt; subsequent broker confirmations or Form 4/5 records would provide fuller ownership and timing context.

Key Figures

Shares sold: 5,000 shares Reported value: $608,616.63 Compensation-related shares: 5,000 shares

3 metrics

Shares sold 5,000 shares sale dated 02/23/2026 by West Family Trust

Reported value $608,616.63 amount shown alongside 02/23/2026 sale row

Compensation-related shares 5,000 shares entry labeled Compensation dated 03/05/2024

Key Terms

Rule 144, Compensation, Selling holder

3 terms

Rule 144 regulatory

"Securities To Be Sold / Securities Sold During The Past 3 Months"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Compensation financial

"Common | 03/05/2024 | Compensation | Issuer"

Selling holder market

"West Family Trust ... Common Shares of KALU | 02/23/2026"

FAQ

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

What does KALU's Rule 144 filing disclose?

It reports a proposed resale of 5,000 common shares. The excerpt shows a sale dated 02/23/2026 by West Family Trust and a reported amount of $608,616.63, plus a 5,000-share compensation entry dated 03/05/2024.

Who is the selling holder in the KALU Rule 144 notice?

The filing names West Family Trust as a selling holder. The trust's address is listed and the sale row shows 5,000 shares with a transaction date of 02/23/2026 and an associated dollar figure of $608,616.63.

Does the filing state how proceeds will be used by KALU?

No proceeds-use statement is included in the excerpt. The entry identifies a resale by a trust and a reported dollar amount, but it does not state any company receipt or use of proceeds in the provided content.

Is this Rule 144 filing indicative of insider selling activity for KALU?

It documents a resale by an affiliate or holder under Rule 144 conditions. The notice lists a 5,000-share transaction by West Family Trust; the excerpt does not include broader insider transaction history or motivations.

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

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Accepted by SEC EDGAR 04/28/2026 - 12:16 PM EDT Learn about SEC filing dates

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	0001330319
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	KAISER ALUMINUM CORP
SEC File Number	001-09447
Address of Issuer	1550 W. MCEWEN DRIVE, SUITE 500 FRANKLIN TENNESSEE 37067
Phone	6292527040
Name of Person for Whose Account the Securities are To Be Sold	West Neal E
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	Officer

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	Wells Fargo Clearing Services 1 N. Jefferson Ave. St. Louis MO 63103	5000	866277.85	16340606	04/28/2026	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	03/05/2024	Compensation	Issuer			5000	03/05/2024	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
West Family Trust 1550 W. MCEWEN DRIVE SUITE 500 FRANKLIN TN 37067	Common Shares of KALU	02/23/2026	5000	608616.63

144: Remarks and Signature

Remarks	Shares sold today by the West Family Trust. Neal West is a TTEE of the trust and an officer of the issuer.
Date of Notice	04/28/2026
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	Neal E. West
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)