KAISER ALUMINUM CORP — Director's Dealing 2018

Mar 8, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KAISER ALUMINUM CORP (KALU)
CIK: 0000811596
Period of Report: 2018-03-05

Reporting Person: Parkinson Ray (VP - Advanced Engineering)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-03-05	Common Stock, par value $0.01 per share	A	1532	—	Acquired	7494	Direct
2018-03-05	Common Stock, par value $0.01 per share	A	4129	—	Acquired	11623	Direct
2018-03-05	Common Stock, par value $0.01 per share	F	1464	$101.66	Disposed	10159	Direct
2018-03-05	Common Stock, par value $0.01 per share	F	704	$101.66	Disposed	9455	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $0.01 per share	9099	Indirect

Footnotes

F1: Grant to the reporting person effective as of March 5, 2018 of restricted stock units under the Kaiser Aluminum Corporation 2016 Equity and Incentive Compensation Plan. All restrictions will lapse on March 5, 2021 or earlier upon the occurrence of certain specified circumstances.

F2: Includes 5,461 shares acquired pursuant to grants of restricted stock units.

F3: Shares earned upon the vesting on March 5, 2018 of certain performance shares granted to the reporting person in 2015 under the Kaiser Aluminum Corporation 2006 Equity and Performance Incentive Plan, as amended. On March 5, 2018, 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 2015 through 2017.

F4: Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2018 of the above-referenced performance shares.

F5: Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2018 of certain shares granted to the reporting person in 2015 under the Kaiser Aluminum Corporation 2006 Equity and Performance Incentive Plan, as amended.