0001628280-22-005905.txt : 20220311 0001628280-22-005905.hdr.sgml : 20220311 20220311162053 ACCESSION NUMBER: 0001628280-22-005905 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220310 FILED AS OF DATE: 20220311 DATE AS OF CHANGE: 20220311 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MacMillan Deon CENTRAL INDEX KEY: 0001854400 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36873 FILM NUMBER: 22733403 MAIL ADDRESS: STREET 1: C/O SUMMIT MATERIALS, INC. STREET 2: 1550 WYNKOOP STREET, 3RD FLOOR CITY: DENVER STATE: CO ZIP: 08202 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Summit Materials, Inc. CENTRAL INDEX KEY: 0001621563 STANDARD INDUSTRIAL CLASSIFICATION: MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400] IRS NUMBER: 471984212 STATE OF INCORPORATION: DE FISCAL YEAR END: 0101 BUSINESS ADDRESS: STREET 1: 1550 WYNKOOP STREET, 3RD FLOOR CITY: DENVER STATE: CO ZIP: 80202 BUSINESS PHONE: 303-893-0012 MAIL ADDRESS: STREET 1: 1550 WYNKOOP STREET, 3RD FLOOR CITY: DENVER STATE: CO ZIP: 80202 4 1 wf-form4_164703362532135.xml FORM 4 X0306 4 2022-03-10 0 0001621563 Summit Materials, Inc. SUM 0001854400 MacMillan Deon C/O SUMMIT MATERIALS, INC. 1550 WYNKOOP STREET, 3RD F LOOR DENVER CO 80202 0 1 0 0 See Remarks Class A Common Stock 2022-03-10 4 M 0 6542 A 10253 D Class A Common Stock 2022-03-10 4 F 0 2003 29.72 D 8250 D Restricted Stock Units 2022-03-10 4 M 0 6542 0 D Class A Common Stock 6542.0 4673 D Reflects restricted stock units that upon vesting converted into shares of Class A common stock of the Issuer ("Class A Common Stock") on a one-for-one basis. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will be settled in either Class A Common Stock or cash (or a combination thereof) at the discretion of the Issuer's Human Capital and Compensation Committee. On March 10, 2021, the Reporting Person was granted 16,822 restricted stock units, 5,607 vested on March 10, 2021, 6,542 vested on March 10, 2022 and 4,673 vest on March 10, 2023. EVP, Chief People Officer and Head of Corporate Communications /s/ Christopher B. Gaskill, as Attorney-in-Fact 2022-03-11