KAISER ALUMINUM CORP — Director's Dealing 2021

Oct 1, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KAISER ALUMINUM CORP (KALU)
CIK: 0000811596
Period of Report: 2021-10-01

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-10-01	Common Stock, par value $0.01 per share	S	1000	$109.74	Disposed	60886	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 ofa 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: Represents the sale of 1,000 shares in multiple transactions, ranging from $110.00 to $109.47 per share, resulting in a weighted average sale price of $109.74 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.

F3: Includes 47,490 shares acquired pursuant to grants of restricted stock units.