0001628280-21-004334.txt : 20210309 0001628280-21-004334.hdr.sgml : 20210309 20210309184049 ACCESSION NUMBER: 0001628280-21-004334 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210305 FILED AS OF DATE: 20210309 DATE AS OF CHANGE: 20210309 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: HOCKEMA JACK A CENTRAL INDEX KEY: 0001227285 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-09447 FILM NUMBER: 21727443 MAIL ADDRESS: STREET 1: C/O KAISER ALUMINUM CORP STREET 2: 27422 PORTOLA PARKWAY, SUITE 350 CITY: FOOTHILL RANCH STATE: CA ZIP: 92610-2831 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: KAISER ALUMINUM CORP CENTRAL INDEX KEY: 0000811596 STANDARD INDUSTRIAL CLASSIFICATION: ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS [3350] IRS NUMBER: 943030279 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 27422 PORTOLA PARKWAY, SUITE 200 CITY: FOOTHILL RANCH STATE: CA ZIP: 92610-2831 BUSINESS PHONE: 949-614-1740 MAIL ADDRESS: STREET 1: 27422 PORTOLA PARKWAY, SUITE 200 CITY: FOOTHILL RANCH STATE: CA ZIP: 92610-2831 FORMER COMPANY: FORMER CONFORMED NAME: KAISERTECH LTD DATE OF NAME CHANGE: 19901122 4 1 wf-form4_161533323380838.xml FORM 4 X0306 4 2021-03-05 0 0000811596 KAISER ALUMINUM CORP KALU 0001227285 HOCKEMA JACK A C/O KAISER ALUMINUM CORP. 27422 PORTOLA PARKWAY SUITE 200 FOOTHILL RANCH CA 92610 1 0 0 0 Common Stock, par value $0.01 per share 2021-03-05 4 A 0 6825 0 A 32617 D Common Stock, par value $0.01 per share 2021-03-05 4 F 0 3361 114.61 D 29256 D Common Stock, par value $0.01 per share 2021-03-05 4 F 0 2891 114.61 D 26365 D Common Stock, par value $0.01 per share 16135 I By Hockema Family Trust 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. Includes 25,792 shares acquired pursuant to grants of restricted stock units. Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2021 of the above-referenced performance shares. 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. Includes 17,507 shares acquired pursuant to grants of restricted stock units. /s/Cherrie I. Tsai, with power of attorney for Jack A. Hockema 2021-03-09