Vijai Narayan - 05 Mar 2026 Form 4 Insider Report for KAISER ALUMINUM CORP (KALU)

Role
VP, Corp Ctrl & CAO
Signature
/s/ John M. Donnan, with power of attorney for Vijai Narayan
Issuer symbol
KALU
Transactions as of
05 Mar 2026
Net transactions value
$0
Form type
4
Filing time
09 Mar 2026, 16:30:14 UTC
Previous filing
10 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Narayan Vijai VP, Corp Ctrl & CAO 1550 WEST MCEWEN DRIVE, SUITE 500, FRANKLIN /s/ John M. Donnan, with power of attorney for Vijai Narayan 09 Mar 2026 0001978222

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction KALU Common Stock, par value $0.01 per share Award +733 +10% $0.000000* 8,096 05 Mar 2026 Direct F1, F2
transaction KALU Common Stock, par value $0.01 per share Tax liability -482 -6% $125.84* 7,614 05 Mar 2026 Direct F2, F3
transaction KALU Common Stock, par value $0.01 per share Tax liability -97 -1.3% $125.84* 7,517 05 Mar 2026 Direct F4, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.
F2 Includes 7,088 shares acquired pursuant to grants of restricted stock units.
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.
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.
F5 Includes 4,926 shares acquired pursuant to grants of restricted stock units.