Kaiser Aluminum VP granted 733 RSUs, shares withheld

Kaiser Aluminum Corporation reported insider equity compensation activity for Vijai Narayan, VP, Corporate Controller and CAO.

Rhea-AI Filing Summary

Kaiser Aluminum Corporation reported insider equity compensation activity for Vijai Narayan, VP, Corporate Controller and CAO. On March 5, 2026, he received a grant of 733 restricted stock units under the 2021 Equity and Incentive Compensation Plan, with all restrictions scheduled to lapse on March 5, 2029 unless certain earlier conditions occur.

On the same date, 482 shares and 97 shares of common stock were withheld at $125.84 per share to satisfy tax withholding obligations related to the vesting of earlier restricted stock unit grants. After these transactions, he directly owned 7,517 shares, including shares previously acquired through restricted stock unit grants.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Narayan Vijai

Role VP, Corp Ctrl & CAO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share	733	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock, par value $0.01 per share	482	$125.84	$61K
Exercise Price or Tax Liability	Common Stock, par value $0.01 per share	97	$125.84	$12K

Holdings After Transaction: Common Stock, par value $0.01 per share — 7,517 shares (Direct)

Footnotes (5)

1. F1. Grant to the reporting person effective as of March 5, 2026 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 or earlier uponthe occurrence of certain specified circumstances.
2. F2. Includes 7,088 shares acquired pursuant to grants of restricted stock units.
3. F3. Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2026 of certain restricted stock units granted to the reporting person on March 5, 2023 under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan.
4. F4. Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2026 of certain restricted stock units granted to the reporting person on June 7, 2023 under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan.
5. F5. Includes 4,926 shares acquired pursuant to grants of restricted stock units.

FAQ

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What did the KALU Form 4 report for Vijai Narayan on March 5, 2026?

The Form 4 reports that Kaiser Aluminum executive Vijai Narayan received 733 restricted stock units on March 5, 2026, and had shares withheld the same day to cover tax obligations tied to earlier restricted stock unit vesting under the company’s 2021 Equity and Incentive Compensation Plan.

How many restricted stock units were granted to KALU executive Vijai Narayan?

Vijai Narayan was granted 733 restricted stock units of Kaiser Aluminum common stock. The grant was made under the 2021 Equity and Incentive Compensation Plan, and all restrictions are scheduled to lapse on March 5, 2029, unless certain specified earlier circumstances occur under the plan’s terms.

When do restrictions on Vijai Narayan’s new KALU restricted stock units lapse?

All restrictions on the 733 restricted stock units granted to Vijai Narayan are scheduled to lapse on March 5, 2029. The restrictions may lapse earlier if certain specified circumstances occur, as provided under Kaiser Aluminum’s 2021 Equity and Incentive Compensation Plan, as amended and restated.

Why were KALU shares withheld from Vijai Narayan in the Form 4?

Kaiser Aluminum withheld 482 shares and 97 shares of common stock from Vijai Narayan to satisfy withholding tax obligations. These obligations arose from the March 5, 2026 vesting of restricted stock units previously granted to him under the company’s 2021 Equity and Incentive Compensation Plan.

At what price were KALU shares withheld for Vijai Narayan’s tax obligations?

The shares withheld from Vijai Narayan to cover tax obligations were valued at $125.84 per share. Kaiser Aluminum used these withheld shares, in two lots of 482 and 97 shares, to satisfy the tax liabilities associated with the vesting of prior restricted stock unit awards.

How many KALU shares did Vijai Narayan own after these transactions?

After the reported transactions, Vijai Narayan directly owned 7,517 shares of Kaiser Aluminum common stock. This total includes shares acquired through grants of restricted stock units, as reflected in the Form 4 and its accompanying footnotes describing prior equity awards.

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Accepted by SEC EDGAR 03/09/2026 - 04:30 PM Learn about SEC filing dates

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^*

Narayan Vijai

(Last) (First) (Middle)

1550 WEST MCEWEN DRIVE

SUITE 500

(Street)

FRANKLIN TN 37067

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
KAISER ALUMINUM CORP [ KALU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Corp Ctrl & CAO

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	03/05/2026		A		733(1)	A	$0(1)	8,096(2)	D
Common Stock, par value $0.01 per share	03/05/2026		F(3)		482	D	$125.84	7,614(2)	D
Common Stock, par value $0.01 per share	03/05/2026		F(4)		97	D	$125.84	7,517(5)	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 effective as of March 5, 2026 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 or earlier uponthe occurrence of certain specified circumstances.

2. Includes 7,088 shares acquired pursuant to grants of restricted stock units.

3. Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2026 of certain restricted stock units granted to the reporting person on March 5, 2023 under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan.

4. Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2026 of certain restricted stock units granted to the reporting person on June 7, 2023 under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan.

5. Includes 4,926 shares acquired pursuant to grants of restricted stock units.

	/s/ John M. Donnan, with power of attorney for Vijai Narayan	03/09/2026
	** 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.