KAISER ALUMINUM CORP — Director's Dealing 2021

Mar 10, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

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

Reporting Person: HOCKEMA JACK A (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-03-05	Common Stock, par value $0.01 per share	A	6825	—	Acquired	32617	Direct
2021-03-05	Common Stock, par value $0.01 per share	F	3361	$114.61	Disposed	29256	Direct
2021-03-05	Common Stock, par value $0.01 per share	F	2891	$114.61	Disposed	26365	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $0.01 per share	16135	Indirect

Footnotes

F1: Shares earned upon the vesting on March 5, 2021 of certain performance shares granted to the reporting person in 2018 under the Kaiser Aluminum Corporation 2016 Equity and Incentive Compensation Plan. On March 5, 2021, the Registrant's compensation committee certified the performance shares payout multiplier based on the level of achievement by the Registrant of certain pre-established performance goals for 2018 through 2020.

F2: Includes 25,792 shares acquired pursuant to grants of restricted stock units.

F3: Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2021 of the above-referenced performance shares.

F4: Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2021 of certain restricted stock units granted to the reporting person in 2018 under the Kaiser Aluminum Corporation 2016 Equity and Incentive Compensation Plan.

F5: Includes 17,507 shares acquired pursuant to grants of restricted stock units.