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KAISER ALUMINUM CORP

For the period ended Dec 31, 2025. Filed Feb 19, 2026.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 19, 2026

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

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Contents

Net Income Per Share

  1. Net Income Per Share

Basic net income per share is computed by dividing distributed and undistributed net income allocable to common shares by the weighted-average number of common shares outstanding during the applicable period. The basic weighted-average number of common shares outstanding during the period excludes non-vested share-based payment awards. Basic and diluted net income per share was calculated under the two-class method for the years ended December 31, 2025, 2024, and 2023.

The following table sets forth the computation of basic and diluted net income per share (in millions of dollars, except share and per share amounts):

Year Ended December 31,
20252024As Adjusted12023As Adjusted1
Numerator:
Net income112.565.767.8
Less: earnings attributable to participating securities2——(0.1)
Net income available to common shareholders112.565.767.7
Denominator – Weighted-average common shares outstanding (in thousands):
Basic16,16916,06915,991
Add: dilutive effect of non-vested common shares, restricted stock units and performance shares3453250140
Diluted16,62216,31916,131
Net income per common share, Basic$6.96$4.08$4.25
Net income per common share, Diluted$6.77$4.02$4.21

Represents distributed and undistributed earnings allocated to non-vested RSAs that contain non-forfeitable rights to dividends.

Quantities in the following discussion are denoted in whole shares. For the years ended December 31, 2025, 2024, and 2023, approximately 200,1,100, and 35,000 shares, respectively, were excluded from the weighted-average diluted shares computation as their inclusion would have been anti-dilutive.

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