Blain Tiffany - 07 Nov 2025 Form 4 Insider Report for KAISER ALUMINUM CORP (KALU)

Role
EVP - Sales & Marketing
Signature
/s/ John M. Donnan, with power of attorney for Blain Tiffany
Issuer symbol
KALU
Transactions as of
07 Nov 2025
Net transactions value
-$812,997
Form type
4
Filing time
10 Nov 2025, 19:36:30 UTC
Previous filing
14 Aug 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tiffany Blain EVP - Sales & Marketing 1550 WEST MCEWEN DRIVE, SUITE 500, FRANKLIN /s/ John M. Donnan, with power of attorney for Blain Tiffany 10 Nov 2025 0001323719

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 Sale $812,997 -8,656 -25% $93.92 26,275 07 Nov 2025 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the sale of 8,656 shares in multiple transactions, raging from $93.14 to $94.805 per share, resulting in a weighted average sale price of $93.923 per share. The reporting person undertake 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 11,044 shares acquired pursuant to grants of restricted stock units.