Current Report Filing (8-k)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): September 27, 2017

Summit Materials, Inc.

(Exact name of registrant as specified in its charter)

Delaware		001-36873		47-1984212
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

1550 Wynkoop Street, 3rd Floor

Denver, Colorado 80202

(Address of Principal Executive Offices) (Zip Code)

Registrant’s telephone number, including area code: (303) 893-0012

Not Applicable

(Former Name or Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On October 3, 2017, Summit Materials, Inc. (the “Company”) announced that Douglas C. Rauh will be leaving his role as the Company’s Executive Vice President and Chief Operating Officer, effective December 30, 2017. Thomas W. Hill, President and Chief Executive Officer of the Company, will be appointed Interim Chief Operating Officer, effective December 30, 2017. Biographical information and any information required by Item 404(a) of Regulation S-K with respect to Mr. Hill are contained in the Company’s Proxy Statement filed with the Securities and Exchange Commission on March 30, 2017 and incorporated herein by reference.

Item 7.01. Regulation FD Disclosure.

On October 3, 2017, the Company issued a press release announcing Mr. Rauh’s change in role. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information included under Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section. The information in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, unless specifically incorporated by reference into any such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1

Press Release of Summit Materials, Inc. dated October 3, 2017

EXHIBIT INDEX

Exhibit Number		Description of Exhibit
99.1		Press Release of Summit Materials, Inc. dated October 3, 2017

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	SUMMIT MATERIALS, INC.
Date: October 3, 2017

	By:	/s/ Christopher Gaskill
	Name:	Christopher Gaskill
	Title:	Vice President, Assistant General Counsel and Assistant Secretary