Edgar Filing: Summit Materials, Inc.

Reserved for Broadridge Internal Control Information

DEFA14A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )

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¨		Preliminary Proxy Statement

¨		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨		Definitive Proxy Statement

x		Definitive Additional Materials

¨		Soliciting Material under §240.14a-12

Summit Materials, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Stockholder Meeting to Be Held on May 26, 2016

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Meeting Information

SUMMIT MATERIALS, INC.

Meeting Type: Annual Meeting

For holders as of: April 01, 2016

Date: May 26, 2016 Time: 8:00 AM EDT

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Location: Simpson Thacher & Bartlett LLP

425 Lexington Ave

New York, NY 10017

You are receiving this communication because you hold shares in the above named company.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

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— Before You Vote —

How to Access the Proxy Materials



				Proxy Materials Available to VIEW or RECEIVE: 1. Notice & Proxy Statement 2. Annual Report How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL: sendmaterial@proxyvote.com If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 12, 2016 to facilitate timely delivery.

				— How To Vote — Please Choose One of the Following Voting Methods

				Vote In Person: Many stockholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.
				Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.				Internal Use Only


				Voting items
		The Board of Directors recommends you vote “FOR” the following:
		1.		Election of Directors
				Nominees
		1a		Thomas W. Hill 1b Neil P. Simpkins
		The Board of Directors recommends you vote “FOR” proposals 2 and 3.
		2		Ratification of the appointment of KPMG LLP as our independent auditors for 2016.
		3		Nonbinding advisory vote on the compensation of our named executive officers for 2015.
		The Board of Directors recommends you vote “1 YEAR” on the following proposal:
		4		Nonbinding advisory vote on the frequency of future nonbinding advisory votes on the compensation of our named executive officers.
		NOTE: Such other business as may properly come before the meeting or any adjournment or postponement thereof.

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		NAME

		THE COMPANY NAME INC. - COMMON		123,456,789,012.12345
		THE COMPANY NAME INC. - CLASS A		123,456,789,012.12345
		THE COMPANY NAME INC. - CLASS B		123,456,789,012.12345
		THE COMPANY NAME INC. - CLASS C		123,456,789,012.12345
		THE COMPANY NAME INC. - CLASS D		123,456,789,012.12345
		THE COMPANY NAME INC. - CLASS E		123,456,789,012.12345
		THE COMPANY NAME INC. - CLASS F		123,456,789,012.12345
		THE COMPANY NAME INC. - 401 K		123,456,789,012.12345

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