SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000950103-23-015209
Filing Date
2023-10-20
Accepted
2023-10-20 16:37:31
Documents
1

Document Format Files

Seq Description Document Type Size
1 FORM DEFA14A dp201698_defa14a.htm DEFA14A 20548
  Complete submission text file 0000950103-23-015209.txt   21532
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.: 231337498
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)