0001628280-21-018267.txt : 20210908 0001628280-21-018267.hdr.sgml : 20210908 20210908174902 ACCESSION NUMBER: 0001628280-21-018267 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210903 FILED AS OF DATE: 20210908 DATE AS OF CHANGE: 20210908 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: arnold michael c CENTRAL INDEX KEY: 0001234013 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-09447 FILM NUMBER: 211243060 MAIL ADDRESS: STREET 1: C/O RYERSON HOLDING CORPORATION STREET 2: 227 W. MONROE ST., 27TH FLOOR CITY: CHICAGO STATE: IL ZIP: 60606 FORMER NAME: FORMER CONFORMED NAME: ARNOLD MICHAEL C DATE OF NAME CHANGE: 20030519 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_163113772219498.xml FORM 4 X0306 4 2021-09-03 0 0000811596 KAISER ALUMINUM CORP KALU 0001234013 arnold michael c 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 2021-09-03 4 A 0 758 0 A 758 D Grant to the reporting person of restricted stock under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan. All restrictions will lapse on September 3, 2022. /s/ Cherrie I. Tsai, with power of attorney for Michael C. Arnold 2021-09-08