0000949157-17-000023.txt : 20170301 0000949157-17-000023.hdr.sgml : 20170301 20170301161750 ACCESSION NUMBER: 0000949157-17-000023 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20170227 FILED AS OF DATE: 20170301 DATE AS OF CHANGE: 20170301 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: CENTURY ALUMINUM CO CENTRAL INDEX KEY: 0000949157 STANDARD INDUSTRIAL CLASSIFICATION: PRIMARY PRODUCTION OF ALUMINUM [3334] IRS NUMBER: 133070826 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1 SOUTH WACKER DRIVE STREET 2: SUITE 1000 CITY: CHICAGO STATE: IL ZIP: 60606 BUSINESS PHONE: 3126963101 MAIL ADDRESS: STREET 1: 1 SOUTH WACKER DRIVE STREET 2: SUITE 1000 CITY: CHICAGO STATE: IL ZIP: 60606 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Lair Michelle CENTRAL INDEX KEY: 0001365895 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34474 FILM NUMBER: 17654355 MAIL ADDRESS: STREET 1: C/O CENTURY ALUMINUM COMPANY STREET 2: 2511 GARDEN ROAD, BLDG. A, SUITE 200 CITY: MONTEREY STATE: CA ZIP: 93940 4 1 wf-form4_148840305664768.xml FORM 4 X0306 4 2017-02-27 0 0000949157 CENTURY ALUMINUM CO CENX 0001365895 Lair Michelle C/O CENTURY ALUMINUM COMPANY ONE SOUTH WACKER DRIVE, SUITE 1000 CHICAGO IL 60606 0 1 0 0 Sr. VP Finance & Treasurer Common Stock 2017-02-27 4 S 0 4125 13.81 D 50355 D Common Stock 2017-02-28 4 S 0 2872 14.10 D 47483 D Common Stock 352.5075 I By 401(k) plan This transaction was executed in multiple trades at prices ranging from $13.62 to $13.97. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. /s/ Jesse E. Gary, Attorney-in-Fact for Michelle Lair 2017-03-01