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: Miller Del L (VP Treasury Risk & Procurement)

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	624	—	Acquired	4844	Direct
2021-03-05	Common Stock, par value $0.01 per share	A	285	—	Acquired	5129	Direct
2021-03-05	Common Stock, par value $0.01 per share	F	111	$114.61	Disposed	5018	Direct
2021-03-05	Common Stock, par value $0.01 per share	F	254	$114.61	Disposed	4764	Direct

Footnotes

F1: Grant to the reporting person effective as of March 5, 2021 of restricted stock units under the Kaiser Aluminum Corporation 2016 Equity and Incentive Compensation Plan. All restrictions will lapse on March 5, 2024 or earlier upon the occurrence of certain specified circumstances.

F2: Includes 2,548 shares acquired pursuant to grants of restricted stock units.

F3: 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 a certain pre-established performance goal for 2018 through 2020.

F4: Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2021 of the above-referenced performance shares.

F5: Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2021 of certain shares granted to the reporting person in 2018 under the Kaiser Aluminum Corporation 2016 Equity and Incentive Compensation Plan.

F6: Includes 1,930 shares acquired pursuant to grants of restricted stock units.