KAISER ALUMINUM CORP

For the period ended Mar 31, 2025. Filed Apr 24, 2025.

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2025 · Filed Apr 24, 2025

KALU$111.57+4.4%Stored close · as of Nov 9, 2026

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Contents

Item 6. Exhibits

Exhibit		Provided	Incorporated by Reference
No.	Exhibit Description	Herewith	Form	File Number	Exhibit	Filing Date
10.1	2025 Short-Term Incentive Plan for Key Managers	X
10.2	2025-2027 Long-Term Incentive Plan Performance Shares	X
10.3	2025 Form of Executive Officer Restricted Stock Unit Award Agreement	X
10.4	2025 Form of Executive Officer Performance Shares Award Agreement	X
10.5	Amended and Restated Director Designation Agreement dated April 23, 2025	X
18.1	Preferability Letter from Independent Registered Public Accounting Firm, dated April 24, 2025	X
31.1	Certification of Keith A. Harvey pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	X
31.2	Certification of Neal E. West pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	X
32.1	Certification of Keith A. Harvey pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	X
32.2	Certification of Neal E. West pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	X
101.INS	Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH	Inline XBRL Taxonomy Extension Schema	X
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)	X

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.