STOCK TITAN

Director Brett Wilcox receives stock awards at Kaiser Aluminum (NASDAQ: KALU)

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Kaiser Aluminum Corp director Brett Wilcox reported new stock awards. On June 4, 2026 he acquired 786 shares of restricted stock under the 2021 Equity and Incentive Compensation Plan, with all restrictions lapsing on June 4, 2027.

He also received 328 common shares at an implied value based on the 20-day average closing price, electing stock instead of part or all of his annual cash retainer for board and committee service. After these awards, he holds 3,019 shares directly and 9,887 shares indirectly through the Wilcox Revocable Trust.

Positive

  • None.

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Insider Wilcox Brett
Role null
Type Security Shares Price Value
Grant/Award Common Stock, par value $0.01 per share 786 $0.00 --
Grant/Award Common Stock, par value $0.01 per share 328 $178.10 $58K
holding Common Stock, par value $0.01 per share -- -- --
Holdings After Transaction: Common Stock, par value $0.01 per share — 2,691 shares (Direct, null); Common Stock, par value $0.01 per share — 9,887 shares (Indirect, By Wilcox Revocable Trust)
Footnotes (1)
  1. Grant to the reporting person of restricted stock under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. All restrictions will lapse on June 4, 2027. Stock received by the reporting person under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated, at such person's election in lieu of all or a portion of the reporting person's annual cash retainer for serving as a member of the Board of Directors of Kaiser Aluminum Corporation and chair or a member of one or more committees of the Board of Directors. Equal to the average closing price of the Issuer's common stock as reported by the Nasdaq Stock Market, LLC for the 20 trading days prior to June 4, 2026.
Restricted stock grant 786 shares Common stock awarded on June 4, 2026; restrictions lapse June 4, 2027
Stock in lieu of cash retainer 328 shares Common stock received for board retainer at $178.10 per share on June 4, 2026
Implied grant price $178.10 per share Average closing price over 20 trading days prior to June 4, 2026
Direct holdings after awards 3,019 shares Total Kaiser Aluminum common stock held directly by Brett Wilcox after June 4, 2026
Indirect holdings via trust 9,887 shares Kaiser Aluminum common stock held indirectly through Wilcox Revocable Trust
restricted stock financial
"Grant to the reporting person of restricted stock under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan"
Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.
2021 Equity and Incentive Compensation Plan financial
"under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated"
annual cash retainer financial
"in lieu of all or a portion of the reporting person's annual cash retainer for serving as a member of the Board of Directors"
Wilcox Revocable Trust financial
"nature_of_ownership: By Wilcox Revocable Trust"
average closing price financial
"Equal to the average closing price of the Issuer's common stock as reported by the Nasdaq Stock Market, LLC for the 20 trading days prior to June 4, 2026."
The average closing price is the arithmetic mean of a security’s end-of-day prices over a chosen period, found by adding each day’s closing price and dividing by the number of days. It smooths out daily ups and downs to show a typical market value—like averaging daily temperatures to understand a month’s climate—and helps investors spot trends, judge whether a stock is generally rising or falling, and make clearer buy or sell decisions.
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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Wilcox Brett

(Last)(First)(Middle)
1550 WEST MCEWEN DRIVE
SUITE 500

(Street)
FRANKLIN TENNESSEE 37067

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
KAISER ALUMINUM CORP [ KALU ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/04/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock, par value $0.01 per share06/04/2026A786(1)A$0(1)2,691D
Common Stock, par value $0.01 per share06/04/2026A328(2)A$178.1(3)3,019D
Common Stock, par value $0.01 per share9,887IBy Wilcox Revocable Trust
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Grant to the reporting person of restricted stock under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. All restrictions will lapse on June 4, 2027.
2. Stock received by the reporting person under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated, at such person's election in lieu of all or a portion of the reporting person's annual cash retainer for serving as a member of the Board of Directors of Kaiser Aluminum Corporation and chair or a member of one or more committees of the Board of Directors.
3. Equal to the average closing price of the Issuer's common stock as reported by the Nasdaq Stock Market, LLC for the 20 trading days prior to June 4, 2026.
/s/ Cherrie I. Tsai, with power of attorney for Brett Wilcox06/05/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Brett Wilcox report in his latest Form 4 for Kaiser Aluminum (KALU)?

Brett Wilcox reported receiving two stock awards in Kaiser Aluminum common stock. These include 786 restricted shares and 328 additional shares taken in stock instead of cash retainer, all as compensation for his board service.

How many Kaiser Aluminum (KALU) shares did Brett Wilcox acquire on June 4, 2026?

On June 4, 2026, Brett Wilcox acquired 1,114 Kaiser Aluminum shares. This consists of 786 restricted shares and 328 shares received in lieu of part or all of his annual cash board retainer.

When do Brett Wilcox’s restricted Kaiser Aluminum (KALU) shares vest?

The 786 restricted shares granted to Brett Wilcox vest when all restrictions lapse on June 4, 2027. Until then, the shares are subject to award terms under the 2021 Equity and Incentive Compensation Plan.

What is the nature of Brett Wilcox’s indirect ownership in Kaiser Aluminum (KALU)?

Brett Wilcox indirectly owns 9,887 Kaiser Aluminum shares through the Wilcox Revocable Trust. This position is reported as indirect ownership and is separate from his directly held shares reported in his own name.

How many Kaiser Aluminum (KALU) shares does Brett Wilcox hold after the reported transactions?

After these awards, Brett Wilcox holds 3,019 shares directly and 9,887 shares indirectly via the Wilcox Revocable Trust. These totals reflect his reported ownership following the June 4, 2026 grants.

How was the value determined for Brett Wilcox’s stock in lieu of cash retainer at Kaiser Aluminum (KALU)?

The stock received in lieu of cash retainer was valued at the average closing price of Kaiser Aluminum’s common stock on Nasdaq for the 20 trading days prior to June 4, 2026, according to the filing footnotes.