KAISER ALUMINUM CORP — Director's Dealing 2018

May 30, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KAISER ALUMINUM CORP (KALU)
CIK: 0000811596
Period of Report: 2018-05-24

Reporting Person: Krouse Mark (VP - Human Resources)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-24	Common Stock, par value $0.01 per share	S	1500	$108.6273	Disposed	3565	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $0.01 per share	3773	Direct

Footnotes

F1: Represents the sale of 1,500 shares in multiple transactions, ranging from $108.5977 to $108.6663 per share, resulting in a weighted average sale price of $108.6273 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.

F2: Shares acquired pursuant to grants of restricted stock units.