0001104659-21-039883.txt : 20210322 0001104659-21-039883.hdr.sgml : 20210322 20210322212000 ACCESSION NUMBER: 0001104659-21-039883 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210318 FILED AS OF DATE: 20210322 DATE AS OF CHANGE: 20210322 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Benedict Anne Lee CENTRAL INDEX KEY: 0001635215 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36873 FILM NUMBER: 21762867 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] IRS NUMBER: 471984212 STATE OF INCORPORATION: DE FISCAL YEAR END: 1228 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 tm2110456d1_4seq1.xml OWNERSHIP DOCUMENT X0306 4 2021-03-18 0 0001621563 Summit Materials, Inc. SUM 0001635215 Benedict Anne Lee C/O SUMMIT MATERIALS, INC. 1550 WYNKOOP STREET, 3RD FLOOR DENVER CO 80202 0 1 0 0 See Remarks Class A Common Stock 2021-03-18 4 C 0 53172 A 73585 D LP Units of Summit Materials Holdings L.P. 2021-03-18 4 C 0 53172 0 D Class A Common Stock 53172 0 D Pursuant to the terms of an exchange agreement, dated as of March 11, 2015, the limited partnership units of Summit Materials Holdings L.P. ("LP Units") reported herein are exchangeable from and after the first anniversary of the closing of the Issuer's initial public offering (subject to the terms of the exchange agreement and vesting requirements, including certain vesting events more fully described in the Issuer's Registration Statement on Form S-1 (File No. 333-201058)) for shares of the issuer's Class A common stock on a one-for-one basis. Title: EVP, Chief Legal Officer & Secretary /s/ Anne Lee Benedict 2021-03-22