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Filing Details

Accession Number:: 0000899243-16-033934
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2016-11-18 18:00:54
Reporting Period:: 2016-11-16

Filing Date:: 2016-11-18
Accepted Time:: 2016-11-18 18:00:54
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1621563	Summit Materials Inc.	SUM	Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)	471984212

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1636076	L.p. V-Ac Nq (Delaware) Partners Capital Blackstone	C/O The Blackstone Group L.p. 345 Park Avenue New York NY 10154	No	No	Yes	No
1636079	L.p. V-Nq (Delaware) Partners Capital Blackstone	C/O The Blackstone Group L.p. 345 Park Avenue New York NY 10154	No	No	Yes	No
1636080	L.p. V-Nq (Delaware) Partnership Investment Family Blackstone	C/O The Blackstone Group L.p. 345 Park Avenue New York NY 10154	No	No	Yes	No
1636081	L.p. V-Nq (Cayman) Associates Management Blackstone	C/O The Blackstone Group L.p. 345 Park Avenue New York NY 10154	No	No	Yes	No
1636082	L.p. V-Nq (Delaware) Partnership Participation Blackstone	C/O The Blackstone Group L.p. 345 Park Avenue New York NY 10154	No	No	Yes	No
1636099	Summit Bcp Intermediate Holdings Gp, Ltd.	C/O The Blackstone Group L.p. 345 Park Avenue New York NY 10154	No	No	Yes	No
1636102	L.p. Holdings Intermediate Bcp Summit	C/O The Blackstone Group L.p 345 Park Avenue New York NY 10154	No	No	Yes	No
1636113	Ltd. V-Nq (Cayman) Associates Lr Blackstone	C/O The Blackstone Group L.p. 345 Park Avenue New York NY 10154	No	No	Yes	No
1636115	L.l.c. Gp V-Nq Bcp	C/O The Blackstone Group L.p. 345 Park Avenue New York NY 10154	No	No	Yes	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Class A Common Stock	Acquisiton	2016-11-16	13,349,610	$0.00	13,349,610	No	4	C	Indirect	See Footnotes
Class A Common Stock	Disposition	2016-11-16	13,349,610	$21.87	0	No	4	S	Indirect	See Footnotes
Class A Common Stock	Acquisiton	2016-11-16	2,814,207	$0.00	2,814,207	No	4	C	Indirect	See Footnotes
Class A Common Stock	Disposition	2016-11-16	2,814,207	$21.87	0	No	4	S	Indirect	See Footnotes
Class A Common Stock	Acquisiton	2016-11-16	253,891	$0.00	253,891	No	4	C	Indirect	See Footnotes
Class A Common Stock	Disposition	2016-11-16	253,891	$21.87	0	No	4	S	Indirect	See Footnotes
Class A Common Stock	Acquisiton	2016-11-16	21,513	$0.00	21,513	No	4	C	Indirect	See Footnotes
Class A Common Stock	Disposition	2016-11-16	21,513	$21.87	0	No	4	S	Indirect	See Footnotes
Class A Common Stock	Acquisiton	2016-11-16	12,501	$0.00	12,501	No	4	C	Indirect	See Footnotes
Class A Common Stock	Disposition	2016-11-16	12,501	$21.87	0	No	4	S	Indirect	See Footnotes

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	C	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	C	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	C	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes
No	4	C	Indirect	See Footnotes
No	4	S	Indirect	See Footnotes

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Class A Common Stock	LP Units of Summit Materials Holdings L.P.	Disposition	2016-11-16	13,349,610	$0.00	13,349,610	$0.00
Class A Common Stock	LP Units of Summit Materials Holdings L.P.	Disposition	2016-11-16	2,814,207	$0.00	2,814,207	$0.00
Class A Common Stock	LP Units of Summit Materials Holdings L.P.	Disposition	2016-11-16	253,891	$0.00	253,891	$0.00
Class A Common Stock	LP Units of Summit Materials Holdings L.P.	Disposition	2016-11-16	21,513	$0.00	21,513	$0.00
Class A Common Stock	LP Units of Summit Materials Holdings L.P.	Disposition	2016-11-16	12,501	$0.00	12,501	$0.00

Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect

Footnotes

Pursuant to the terms of an exchange agreement, dated as of March 11, 2015, limited partnership units of Summit Materials Holdings L.P. ("LP Units") held by the Reporting Persons are exchangeable for shares of the issuer's Class A common stock ("Common Stock") on a one-for-one basis.
This amount represents the $22.10 public offering price per share of Common Stock, less the underwriting discount of $0.23 per share of Common Stock.
Reflects securities of the issuer held directly by Blackstone Capital Partners (Delaware) V-NQ L.P.
Reflects securities of the issuer held directly by Blackstone Capital Partners (Delaware) NQ V-AC L.P.
Reflects securities of the issuer held directly by Summit BCP Intermediate Holdings L.P. The general partner of Summit BCP Intermediate Holdings L.P. is Summit BCP Intermediate Holdings GP, Ltd. Summit BCP Intermediate Holdings GP, Ltd. is owned by Blackstone Capital Partners (Delaware) V-NQ L.P., Blackstone Capital Partners (Delaware) NQ V-AC L.P., Blackstone Family Investment Partnership (Delaware) V-NQ L.P. and Blackstone Participation Partnership (Delaware) V-NQ L.P.
Reflects securities of the issuer held directly by Blackstone Family Investment Partnership (Delaware) V-NQ L.P.
Reflects securities of the issuer held directly by Blackstone Participation Partnership (Delaware) V-NQ L.P. (collectively with Blackstone Capital Partners (Delaware) V-NQ L.P., Blackstone Capital Partners (Delaware) NQ V-AC L.P., Summit BCP Intermediate Holdings L.P. and Blackstone Family Investment Partnership (Delaware) V-NQ L.P., the "Blackstone Funds").
The general partner of each of Blackstone Capital Partners (Delaware) V-NQ L.P. and Blackstone Capital Partners (Delaware) NQ V-AC L.P. is Blackstone Management Associates (Cayman) V-NQ L.P. The general partners of each of Blackstone Management Associates (Cayman) V-NQ L.P., Blackstone Family Investment Partnership (Delaware) V-NQ L.P. and Blackstone Participation Partnership (Delaware) V-NQ L.P. are Blackstone LR Associates (Cayman) V-NQ Ltd. and BCP V-NQ GP L.L.C.
Blackstone Holdings II L.P. is the sole member of BCP V-NQ GP L.L.C. and the controlling shareholder of Blackstone LR Associates (Cayman) V-NQ Ltd. The general partner of Blackstone Holdings II L.P. is Blackstone Holdings I/II GP Inc. The sole shareholder of Blackstone Holdings I/II GP Inc. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.
Due to the limitations of the electronic filing system Blackstone Holdings II L.P., Blackstone Holdings I/II GP Inc., The Blackstone Group L.P., Blackstone Group Management L.L.C. and Stephen A. Schwarzman are filing a separate Form 4.
Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.
Each of the Reporting Persons (other than the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, if any, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.