Kaiser Aluminum Form 144: RSU sale notice

Kaiser Aluminum submitted a Form 144 notice reporting proposed sales of Common stock tied to previously granted RSUs.

Rhea-AI Filing Summary

Kaiser Aluminum submitted a Form 144 notice reporting proposed sales of Common stock tied to previously granted RSUs. The filing lists multiple RSU lots with grant dates and share counts (examples include 1,478 shares granted 06/04/2013 and 2,060 shares granted 06/07/2024).

Key Figures

RSU lot: 1,478 shares RSU lot: 1,384 shares RSU lot: 2,060 shares +2 more

5 metrics

RSU lot 1,478 shares grant date 06/04/2013

RSU lot 1,384 shares grant date 06/04/2014

RSU lot 2,060 shares grant date 06/07/2024

RSU lot 642 shares grant date 06/11/2024

Broker/agent listed UBS Financial Services Inc. address 1000 Harbor Blvd, Weehawken, NJ

Key Terms

Form 144, RSU, Nasdaq

3 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

RSU financial

"06/04/2013 | RSU | Kaiser Aluminum | | | 1478"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

Nasdaq market

"16340606 | 04/27/2026 | Nasdaq"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

FAQ

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

What does Kaiser Aluminum's Form 144 (KALU) show?

It notifies proposed sales of Common stock tied to RSUs. The excerpt lists multiple RSU grant dates and share counts, including 1,478 shares (06/04/2013) and 2,060 shares (06/07/2024). The filing is a notice, not a trade confirmation.

Which RSU grant examples are listed in the Form 144?

Examples include several dated RSU grants and share counts. The filing shows 1,478 shares (06/04/2013), 1,384 shares (06/04/2014), and 2,060 shares (06/07/2024) among other lots tied to RSUs.

Does the Form 144 indicate when the sales will occur?

The excerpt does not specify sale timing or execution details. It lists grant dates and share counts for RSUs but does not provide trade dates, prices, or confirmation of completed transactions in the provided content.

Who is the broker or intermediary listed on the Form 144?

UBS Financial Services Inc. is listed with an address in Weehawken, NJ. The excerpt shows UBS Financial Services Inc., 1000 Harbor Blvd, 3rd Floor, Weehawken, NJ 07086 associated with the filing.

Does the filing state the total number of shares involved?

The excerpt lists multiple per-lot share counts but does not present a single aggregate total. Individual RSU lots and counts are shown; an overall consolidated total is not explicitly provided in the excerpt.

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

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Accepted by SEC EDGAR 04/27/2026 - 04:24 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	0001289226
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
SEC File Number	001-09447
Address of Issuer	1550 West McEwen Drive Suite 500 Franklin TENNESSEE 37067
Phone	6292527040
Name of Person for Whose Account the Securities are To Be Sold	Brett Wilcox
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	Board Member

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	UBS Financial Services Inc 1000 Harbor Blvd 3rd Floor Weehawken NJ 07086	15000	2625000	16340606	04/27/2026	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	06/04/2013	RSU	Kaiser Aluminum			1478	06/04/2013	N/A
common	06/04/2014	RSU	Kaiser Aluminum			1384	06/04/2014	N/A
Common	06/02/2015	RSU	Kaiser Aluminum			1158	06/02/2015	N/A
Common	05/26/2017	RSU	Kaiser Aluminum			1078	05/26/2017	N/A
Common	06/04/2016	RSU	Kaiser Aluminum			373	06/04/2016	N/A
Common	06/06/2019	RSU	Kaiser Aluminum			336	06/06/2019	N/A
Common	06/14/2019	RSU	Kaiser Aluminum			1001	06/14/2019	N/A
Common	06/06/2020	RSU	Kaiser Aluminum			1185	06/06/2020	N/A
Common	06/10/2020	RSU	Kaiser Aluminum			491	06/10/2020	N/A
Common	06/03/2021	RSU	Kaiser Aluminum			266	06/03/2021	N/A
Common	06/10/2021	RSU	Kaiser Aluminum			1756	06/10/2021	N/A
Common	06/02/2022	RSU	Kaiser Aluminum			611	06/02/2022	N/A
Common	06/03/2022	RSU	Kaiser Aluminum			952	06/03/2022	N/A
Common	06/02/2023	RSU	Kaiser Aluminum			229	06/02/2023	N/A
Common	06/07/2024	RSU	Kaiser Aluminum			2060	06/07/2024	N/A
Common	06/11/2024	RSU	Kaiser Aluminum			642	06/11/2024	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

Nothing to Report

144: Remarks and Signature

Remarks	Brett Wilcox is on the board of Kaiser Aluminum, The Brett E. Wilcox Trust dtd 07/02/2019 is the seller.
Date of Notice	04/27/2026
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	/s/JOSEPH CASSIDY, for UBS Financial Services Inc, as attorney-in-fact for Brett Wilcox
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)