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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000950103-23-015156
Filing Date
2023-10-19
Accepted
2023-10-19 16:22:42
Documents
3

Document Format Files

Seq Description Document Type Size
1 FORM DEFA14A dp201612_defa14a.htm DEFA14A 21506
2 GRAPHIC image_001.jpg GRAPHIC 501154
3 GRAPHIC image_002.jpg GRAPHIC 1406123
  Complete submission text file 0000950103-23-015156.txt   2650068
Mailing Address 1550 WYNKOOP STREET, 3RD FLOOR DENVER CO 80202
Business Address 1550 WYNKOOP STREET, 3RD FLOOR DENVER CO 80202 303-893-0012
Summit Materials, Inc. (Filer) CIK: 0001621563 (see all company filings)

IRS No.: 471984212 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-36873 | Film No.: 231334955
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)