Iulian Gheorghe - 19 Feb 2026 Form 4 Insider Report for KAISER ALUMINUM CORP (KALU)

Role
SVP - Adv Eng & Innovation
Signature
/s/ Cherrie I. Tsai, with power of attorney for Iulian Gheorghe
Issuer symbol
KALU
Transactions as of
19 Feb 2026
Net transactions value
-$9,656
Form type
4
Filing time
20 Feb 2026, 16:45:08 UTC
Previous filing
12 Jan 2026
Next filing
09 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Gheorghe Iulian SVP - Adv Eng & Innovation 1550 W. MCEWEN DRIVE, SUITE 500, FRANKLIN /s/ Cherrie I. Tsai, with power of attorney for Iulian Gheorghe 20 Feb 2026 0002104071

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 Tax liability $9,656 -76 -1.9% $127.05 3,987 19 Feb 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld to satisfy the withholding tax obligations resulting from the vesting on February 19, 2026 of certain restricted stock units granted to the reporting person in 2025 under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated.
F2 Includes 3,808 shares acquired pursuant to grants of restricted stock units.