DONNAN JOHN MALCOLM 4
4 · KAISER ALUMINUM CORP · Filed Feb 25, 2026
Insider Transaction Report
Form 4
DONNAN JOHN MALCOLM
EVP, CAO and GC
Transactions
- Sale
Common Stock, par value $0.01 per share
[F1][F2]2026-02-23$125.08/sh−18,461$2,309,024→ 22,205 total
Footnotes (2)
- [F1]Represents the sale of 18,461 shares in multiple transactions, raging from $125.00 to $126.39 per share, resulting in a weighted average sale price of $125.0758 per share. The reporting person undertakes to provide upon request by the SEC staff, the Registrant, or a security holder of the Registrant, full information regarding the number of shares sold at each separate price within the range.
- [F2]Includes 17,962 shares acquired pursuant to grants of restricted stock units.
Signature
/s/ Cherrie I. Tsai, with power of attorney for John M. Donnan|2026-02-25