Kaiser Aluminum CEO receives two stock grants

The two awards have separate restriction-release schedules, with dates spanning November 2027 through March 2029.

Available on EDGAR 11/03/2026 - 04:40 PM EST Accepted by SEC EDGAR 11/03/2026 - 04:40 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Kaiser Aluminum Corp. President & CEO Louis Fred Stephan received two direct grants of restricted stock units on November 1, 2026: 27,229 RSUs and 14,457 RSUs. Restrictions on the 27,229-unit award lapse on March 5, 2029. For the 14,457-unit award, restrictions on 50% lapse on November 1, 2027, and on the remaining 50% on November 1, 2028.

Insider Trade Summary

Grant/Award: 41,686 shares

Grant/Award 2 txns

Insider Stephan Louis Fred

Role President & CEO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share F1	27,229	$0.00	$0.00
Grant/Award	Common Stock, par value $0.01 per share F2	14,457	$0.00	$0.00

Holdings After Transaction: Common Stock, par value $0.01 per share — 41,686 shares (Direct)

Footnotes (2)

1. F1. Grant to the reporting person of restricted stock units under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. All restrictions will lapse on March 5, 2029.
2. F2. Grant to the reporting person of restricted stock units under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. Restrictions on 50% of the restricted stock units will lapse on November 1, 2027 and restrictions on the remaining 50% of the restricted stock units will lapse on November 1, 2028.

Key Figures

Restricted stock unit grant: 27,229 restricted stock units Restricted stock unit grant: 14,457 restricted stock units Restriction lapse date: March 5, 2029 +1 more

4 metrics

Restricted stock unit grant 27,229 restricted stock units Direct grant to President & CEO Louis Fred Stephan on November 1, 2026

Restricted stock unit grant 14,457 restricted stock units Direct grant to President & CEO Louis Fred Stephan on November 1, 2026

Restriction lapse date March 5, 2029 All restrictions on the 27,229 restricted stock units lapse

Restriction lapse schedule 50% on November 1, 2027; remaining 50% on November 1, 2028 Restrictions on the 14,457 restricted stock units lapse

Key Terms

restricted stock units, 2021 Equity and Incentive Compensation Plan, as amended and restated

3 terms

restricted stock units financial

"Grant to the reporting person of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2021 Equity and Incentive Compensation Plan financial

"under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan"

as amended and restated regulatory

"2021 Equity and Incentive Compensation Plan, as amended and restated"

FAQ

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

Which compensation plan covered the KALU CEO's RSU grants?

Both grants were made under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

SEC Form 4

FORM 4

UNITED 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^*

Stephan Louis Fred

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President & CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.01 per share	11/01/2026		A		27,229(1)	A	$0(1)	27,229	D
Common Stock, par value $0.01 per share	11/01/2026		A		14,457(2)	A	$0(2)	41,686	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Grant to the reporting person of restricted stock units under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. All restrictions will lapse on March 5, 2029.

2. Grant to the reporting person of restricted stock units under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. Restrictions on 50% of the restricted stock units will lapse on November 1, 2027 and restrictions on the remaining 50% of the restricted stock units will lapse on November 1, 2028.

	/s/ Cherrie I. Tsai, with power of attorney for Louis Fred Stephan	11/03/2026
	** Signature of Reporting Person	Date
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)