0001628280-24-010121.txt : 20240308 0001628280-24-010121.hdr.sgml : 20240308 20240308202348 ACCESSION NUMBER: 0001628280-24-010121 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240307 FILED AS OF DATE: 20240308 DATE AS OF CHANGE: 20240308 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Ellerbusch Susan A CENTRAL INDEX KEY: 0001744472 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36873 FILM NUMBER: 24736282 MAIL ADDRESS: STREET 1: C/O SUMMIT MATERIALS, INC. STREET 2: 1550 WYNKOOP STREET, 3RD FLOOR 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_1709947419.xml FORM 4 X0508 4 2024-03-07 0 0001621563 Summit Materials, Inc. SUM 0001744472 Ellerbusch Susan A C/O SUMMIT MATERIALS, INC. 1801 CALIFORNIA STREET, SUITE 3500 DENVER CO 80202 1 0 0 0 0 Restricted Stock Units 2024-03-07 4 A 0 3341 0 A Class A Common Stock 3341 3341 D 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. These restricted stock units vest on February 28, 2025. The Reporting Person has elected to defer settlement of these restricted stock units to a date following the vesting date pursuant to the terms of the Reporting Person's deferral election. /s/ Christopher B. Gaskill, as Attorney-in-Fact 2024-03-08