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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001104659-18-021549
Filing Date
2018-03-30
Accepted
2018-03-30 16:15:19
Documents
5
Effectiveness Date
2018-03-30

Document Format Files

Seq Description Document Type Size
1 DEFA14A a18-2810_3defa14a.htm DEFA14A 32222
2 GRAPHIC g28103bii001.gif GRAPHIC 77523
3 GRAPHIC g28103bii002.gif GRAPHIC 119088
4 GRAPHIC g28103bii003.gif GRAPHIC 25105
5 GRAPHIC g28103bii004.gif GRAPHIC 5051
  Complete submission text file 0001104659-18-021549.txt   345943
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: 1227
Type: DEFA14A | Act: 34 | File No.: 001-36873 | Film No.: 18726285
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)
Assistant Director 9