Edgar Filing: Summit Materials, Inc.

Ownership Submission

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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3235-0104

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Â BARCLAYS PLC

2. Date of Event Requiring Statement (Month/Day/Year)
07/19/2016

3. Issuer Name and Ticker or Trading Symbol
Summit Materials, Inc. [SUM]

(Last)

(First)

(Middle)

1 CHURCHILL PLACE,Â CANARY WHARF

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

_____ Director	__X__ 10% Owner
_____ Officer (give title below)	_____ Other (specify below)

5. If Amendment, Date Original Filed(Month/Day/Year)

(Street)

LONDON,Â X0Â E14 5HP

6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A Common Stock	13,926,972 ⁽¹⁾	I	By Barclays Capital Inc.
Class A Common Stock	31,360	I	By Barclays Bank PLC

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Equity Swap	Â ⁽²⁾	03/01/2017	Class A Common Stock	8,424	$ 22.5725	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/06/2017	Class A Common Stock	8,425	$ 23.393	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/07/2017	Class A Common Stock	8,425	$ 22.7353	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/08/2017	Class A Common Stock	8,425	$ 23.4887	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/09/2017	Class A Common Stock	8,424	$ 23.2085	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/10/2017	Class A Common Stock	8,424	$ 22.7981	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/13/2017	Class A Common Stock	8,425	$ 22.7342	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/14/2017	Class A Common Stock	8,424	$ 22.7416	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/15/2017	Class A Common Stock	8,425	$ 23.0267	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/16/2017	Class A Common Stock	8,425	$ 23.3541	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/17/2017	Class A Common Stock	8,424	$ 23.6658	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/20/2017	Class A Common Stock	8,424	$ 23.5371	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/21/2017	Class A Common Stock	8,424	$ 23.8071	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/22/2017	Class A Common Stock	8,424	$ 22.677	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/23/2017	Class A Common Stock	8,424	$ 22.0423	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/24/2017	Class A Common Stock	8,425	$ 21.4766	I	By Barclays Bank plc
Equity Swap	Â ⁽²⁾	03/27/2017	Class A Common Stock	8,424	$ 20.7328	I	By Barclays Bank plc

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
BARCLAYS PLC 1 CHURCHILL PLACE CANARY WHARF LONDON,Â X0Â E14 5HP	Â	Â X	Â	Â

Signatures

/s/ James Gibson, Head of Large Holdings Compliance		07/25/2016
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Reporting Person became an insider due to stock borrow activity on July 19, 2016. Reporting Person ceased to be an insider prior to opening of business on July 20, 2016.
(2)	There is no exercisable date for the equity swaps.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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