0001628280-24-008324.txt : 20240301 0001628280-24-008324.hdr.sgml : 20240301 20240301195809 ACCESSION NUMBER: 0001628280-24-008324 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240228 FILED AS OF DATE: 20240301 DATE AS OF CHANGE: 20240301 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Ghelani Kekin CENTRAL INDEX KEY: 0001929414 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36873 FILM NUMBER: 24712447 MAIL ADDRESS: STREET 1: 1550 WYNKOOP CITY: DENVER STATE: CO ZIP: 80202 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Summit Materials, Inc. CENTRAL INDEX KEY: 0001621563 STANDARD INDUSTRIAL CLASSIFICATION: MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400] ORGANIZATION NAME: 01 Energy & Transportation IRS NUMBER: 471984212 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 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 wk-form4_1709341081.xml FORM 4 X0508 4 2024-02-28 0 0001621563 Summit Materials, Inc. SUM 0001929414 Ghelani Kekin C/O SUMMIT MATERIALS, INC. 1801 CALIFORNIA STREET, SUITE 3500 DENVER CO 80202 0 1 0 0 Chief Strategy&Growth Officer 0 Class A Common Stock 2024-02-28 4 M 0 9667 A 17543 D Class A Common Stock 2024-02-29 4 M 0 3398 A 20941 D Class A Common Stock 2024-02-28 4 F 0 2855 42.39 D 18086 D Class A Common Stock 2024-02-29 4 F 0 977 42.71 D 17109 D Restricted Stock Units 2024-02-28 4 M 0 9667 0 D Class A Common Stock 9667 9667 D Restricted Stock Units 2024-02-29 4 M 0 3398 0 D Class A Common Stock 3398 6795 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. Total holdings include shares of Class A Common Stock acquired through the Issuer's Employee Stock Purchase Plan on May 28, 2023. Each restricted stock unit represents a contingent right to receive one share of Class A common stock of the Issuer ("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. These restricted stock units vest in three equal annual installments beginning on September 15, 2023. These restricted stock units vest in three equal annual installments beginning on February 28, 2024. /s/ David Hamm, as Attorney-in-Fact 2024-03-01