KAISER ALUMINUM CORP — Director's Dealing 2021

May 5, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KAISER ALUMINUM CORP (KALU)
CIK: 0000811596
Period of Report: 2021-05-03

Reporting Person: Harvey Keith (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-03	Common Stock, par value $0.01 per share	S	1000	$120	Disposed	65886	Direct

Footnotes

F1: Sales made pursuant to a 10b5-1 plan adopted by the reporting person in March 2021 as part of the reporting person's financial planning to diversify his stockholdings. The plan contemplates the sale of a pre-determined amount of vested shares of common stock of the Registrant held by the reporting person in specified increments subject to designated floor prices.

F2: Includes 47,490 shares acquired pursuant to grants of restricted stock units.