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: Weaver Brant (VP - Strategic Development)

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	795	—	Acquired	5622	Direct
2021-03-05	Common Stock, par value $0.01 per share	A	135	—	Acquired	5757	Direct
2021-03-05	Common Stock, par value $0.01 per share	F	47	$114.61	Disposed	5710	Direct
2021-03-05	Common Stock, par value $0.01 per share	F	101	$114.61	Disposed	5609	Direct
2021-03-08	Common Stock, par value $0.01 per share	S	378	$115.41	Disposed	5231	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 5,244 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 certain pre-established performance goals 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 restricted stock units granted to the reporting person in 2018 under the Kaiser Aluminum Corporation 2016 Equity and Incentive Compensation Plan.

F6: Includes 4,949 shares acquired pursuant to grants of restricted stock units.

F7: Represents the sale of 378 shares in multiple transactions, ranging from $115.40 to $115.45 per share, resulting in a weighted average sale price of $115.41 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.