Document:

EX-10.2

 Exhibit 10.2 

AMENDMENT NO. 1 TO STOCKHOLDERS’ AGREEMENT 

This AMENDMENT NO. 1 TO STOCKHOLDERS’ AGREEMENT, dated as of July 16, 2015 (this “Amendment”), is entered into by and
between Summit Materials, Inc., a Delaware corporation (the “Company”) and each of the other parties identified on the signature pages hereto (the “Investor Parties”). This Amendment is an amendment to the
Stockholders’ Agreement, dated as of March 11, 2015 (the “Agreement”) by and between the Company and the Investor Parties. 

RECITALS: 
 WHEREAS, the
Company and the Investor Parties desire to amend the Agreement with respect to the matters set forth herein. 
 NOW THEREFORE, in
consideration of the premises and agreements hereinafter set forth, the parties hereto hereby agree as follows: 
 Section 1. Amendments.
The Agreement is hereby amended to amend and restate the definition of “Outstanding Summit Interests” in its entirety to reach as follows: 

“Outstanding Summit Interests” means the aggregate number of votes all outstanding shares of Common Stock
would at such time be entitled to vote generally in the election of Directors. For purposes of calculating any proportion of Outstanding Summit Interests, the number of Outstanding Summit Interests held by any Person shall consist of the sum of (a)
the number of shares of Class A Common Stock held by such Person and (b) the number of votes such Person is entitled to as a holder of Class B Common Stock, assuming in each case that the LP Units held by such Person have been exchanged for Class A
Common Stock in accordance with the Exchange Agreement. 
 Section 2. Status. This Amendment amends the Agreement, but only to the
extent expressly set forth herein. All other provisions of the Agreement remain in full force and effect. Unless otherwise defined herein, initially capitalized terms have the meaning given them in the Agreement. 

Section 3. Governing Law. This Amendment shall be governed by and construed in accordance with the applicable terms and provisions of
Section 5.7 of the Agreement, which terms and provisions are incorporated herein by reference. 
 Section 4. Counterparts. This
Amendment may be executed in one or more counterparts, each of which shall be deemed to be an original, but all of which shall be considered one and the same instrument. 

Section 5. Facsimile Execution. Facsimile signatures on counterparts of this Amendment are hereby authorized and shall be acknowledged
as if such facsimile signatures were an original execution, and this Amendment shall be deemed as executed when an executed facsimile hereof is transmitted by a party to any other party. 

[Remainder of Page Intentionally Left Blank] 

 IN WITNESS WHEREOF, each of the parties hereto has executed this Amendment as of the date first
written above. 
  

			
	COMPANY
	
	SUMMIT MATERIALS, INC.
		
	By:	 	 /s/ Thomas W. Hill

	Name:	 	Thomas W. Hill
	Title:	 	Chief Executive Officer

			
	INVESTOR PARTIES:
	
	BLACKSTONE PARTICIPATION PARTNERSHIP (DELAWARE) V-NQ L.P.
		
	By:	 	BCP V-NQ GP L.L.C., its U.S. general partner
		
	By:	 	 /s/ Neil P. Simpkins

	Name:	 	Neil P. Simpkins
	Title:	 	Senior Managing Director
	
	BLACKSTONE FAMILY INVESTMENT PARTNERSHIP (DELAWARE) V-NQ L.P.
		
	By:	 	BCP V-NQ GP L.L.C., its U.S. general partner
		
	By:	 	 /s/ Neil P. Simpkins

	Name:	 	Neil P. Simpkins
	Title:	 	Senior Managing Director
	
	BLACKSTONE CAPITAL PARTNERS (DELAWARE) V-NQ L.P.
		
	By:	 	Blackstone Management Associates (Cayman) V-NQ L.P., its general partner
		
	By:	 	BCP V-NQ GP L.L.C., its U.S. general partner
		
	By:	 	 /s/ Neil P. Simpkins

	Name:	 	Neil P. Simpkins
	Title:	 	Senior Managing Director

  
 [Amendment No.1 to
Stockholders’ Agreement] 

			
	BLACKSTONE CAPITAL PARTNERS (DELAWARE) NQ V-AC L.P.
		
	By:	 	Blackstone Management Associates (Cayman) V-NQ L.P., its general partner
		
	By:	 	BCP V-NQ GP L.L.C., its U.S. general partner
		
	By:	 	 /s/ Neil P. Simpkins

	Name:	 	Neil P. Simpkins
	Title:	 	Senior Managing Director
	
	SUMMIT BCP INTERMEDIATE HOLDINGS L.P.
		
	By:	 	Summit BCP Intermediate Holdings GP, Ltd., its general partner
		
	By:	 	 /s/ Neil P. Simpkins

	Name:	 	Neil P. Simpkins
	Title:	 	Director

  
 [Amendment No.1 to
Stockholders’ Agreement]Exhibit 4.4

 

 

	RIGHTS CERTIFICATE #:	NUMBER OF RIGHTS

 

THE TERMS AND CONDITIONS OF THE RIGHTS OFFERING
ARE SET FORTH IN THE COMPANY'S PROSPECTUS

DATED _____ __, 2015 (THE "PROSPECTUS")
AND ARE INCORPORATED HEREIN BY REFERENCE. COPIES OF

THE PROSPECTUS ARE AVAILABLE UPON REQUEST
FROM D.F. KING & CO., INC., THE INFORMATION AGENT.

 

Trinity Place Holdings Inc.

Incorporated under
the laws of the State of Delaware

 

NON - TRANSFERABLE
SUBSCRIPTION RIGHTS CERTIFICATE

 

Evidencing Non - Transferable Subscription Rights
to Purchase Shares of Common Stock of Trinity Place Holdings Inc.

 

Subscription Price:$6.00
per Share

 

THE SUBSCRIPTION
RIGHTS WILL EXPIRE IF NOT EXERCISED ON OR BEFORE 5:00 P.M., NEW YORK CITY TIME,

ON _______ __,
2015, UNLESS EXTENDED BY THE COMPANY

 

REGISTERED

OWNER:

 

	THIS CERTIFIES THAT the registered owner whose name is inscribed hereon is the owner of the number of non-transferable subscription rights (“Rights”) set forth above. Each whole Right entitles the holder thereof to subscribe for and purchase one share of Common Stock, with a par value of  $0.01 per share, of Trinity Place Holdings Inc., a Delaware corporation, at a subscription price  of $6.00 per  share  (the  “Basic Subscription Privilege”), pursuant to a rights  offering  (the “Rights Offering”), on the terms and subject to the conditions set forth in the Prospectus and the “Instructions as to Use of Trinity Place Holdings Inc. Subscription Rights Certificates” accompanying this Subscription Rights Certificate.	 	If any shares of Common Stock available for purchase in the Rights Offering are not purchased by other holders of Rights pursuant to the exercise of their Basic Subscription Privilege (the “Unsubscribed Shares”), any Rights holder that exercises its Basic Subscription Privilege in full may subscribe for a number of Unsubscribed Shares pursuant to the terms and conditions of the Rights Offering, subject to proration, as described in the Prospectus (the “Over-Subscription Privilege”).   The Rights represented by this Subscription Rights Certificate may be exercised by completing the appropriate forms on the reverse side hereof and by retuning the full payment of the subscription price for each share of Common Stock in accordance with the “Instructions as to Use of Trinity Place Holdings Inc. Subscription Rights Certificates” that accompany this Subscription Rights Certificate.

 

This Subscription Rights Certificate
is not valid unless countersigned by the subscription agent and registered by the registrar.

 

Witness the seal of Trinity
Place Holdings Inc. and the signatures of its duly authorized officers.

 

Dated:

  

	 	/s/
    Matthew Messinger	 	/s/
    Richard Pyontek	 
	 	President and Chief
    Executive Officer	 	Secretary	 

 

 

 

     

     

    

 

DELIVERY OPTIONS FOR SUBSCRIPTION RIGHTS
CERTIFICATE

 

Delivery other than in the manner or to
the address listed below will not constitute valid delivery.

 

If delivering by mail, hand or overnight
courier:

 

American Stock Transfer & Trust Company,
LLC

Operations Center

Attn: Reorganization Department

6201 15th Avenue

Brooklyn, New York 11219

 

PLEASE PRINT ALL INFORMATION
CLEARLY AND LEGIBLY.

 

FORM 1-EXERCISE OF SUBSCRIPTION RIGHTS

 

To subscribe for shares pursuant to your
Basic Subscription Privilege, please complete lines (a) and (c) below, check the appropriate box under Form 3 and sign under Form
4 and, if applicable, complete Form 5. To subscribe for shares pursuant to your Over-Subscription Privilege, please also complete
line (b) and sign under Form 4. To the extent you subscribe for more Shares than you are entitled under either the Basic Subscription
Privilege or the Over-Subscription Privilege, you will be deemed to have elected to purchase the maximum number of shares for which
you are entitled to subscribe under the Basic Subscription Privilege or Over-Subscription Privilege, as applicable.

 

(a) EXERCISE OF BASIC SUBSCRIPTION PRIVILEGE:

 

I apply for _________ shares   x   $ 6.00 =       $_________

(no. of shares) (subscription price) (amount enclosed)

 

(b) EXERCISE OF OVER-SUBSCRIPTION PRIVILEGE

 

If you have exercised your Basic Subscription Privilege in full
and wish to subscribe for additional shares pursuant to your Over-Subscription Privilege:

 

I apply for _________ shares   x $ 6.00 =       $_________

(no. of shares) (subscription price) (amount enclosed)

 

(c) Total Amount of Payment Enclosed   =   $__________________

 

METHOD OF PAYMENT (CHECK ONE)

 

		 ̈	Wire transfer of immediately available funds directly to the account
maintained by American Stock Transfer & Trust Company, LLC, as Subscription Agent, for purposes of accepting subscriptions
in this Rights Offering at JPMorgan Chase Bank, 55 Water Street, New York, New York 10005, ABA #021000021, Account # 530-354616
American Stock Transfer FBO Trinity Place Holdings Inc., with reference to the rights holder's name.

 

		 ̈	Check or bank draft payable to “American Stock Transfer &
Trust Company, LLC (acting as subscription agent for Trinity Place Holdings Inc.)”.

 

FORM 2-DELIVERY TO DIFFERENT ADDRESS

 

If you wish for the Common Stock underlying your subscription
rights, a certificate representing unexercised subscription rights or the proceeds of any sale of subscription rights to be delivered
to an address different from that shown on the face of this Subscription Rights Certificate, please enter the alternate address
below, sign under Form 4 and have your signature guaranteed under Form 5.

 

	 
	 
	 
	 
	 

 

FORM 3 – STOCK OWNERSHIP FOLLOWING EXERCISE OF RIGHTS

 

(CHECK ONE)

 

		 ̈	You currently hold 956,265 or more shares of the Company’s common
stock.

 

		 ̈	You currently hold less than 956,265 shares of the Company’s
common stock, but you are subscribing for a number of shares through the exercise of your Basic Subscription Privilege and, if
applicable, Over-Subscription Privilege, that would, if accepted by the Company, result in you holding 1,154,300 or more shares
of the Company’s common stock following the closing of the rights offering.

 

		 ̈	Neither of the above is applicable.

 

IMPORTANT: If you checked the first or second
box, you must notify the Company by completing and returning directly to the Company the “Notification of 4.75% Holder
Form” included with the subscription documents, as you may be required to submit additional information to the Company in
connection with the exercise of your Basic Subscription privilege, and, if applicable, your Over-Subscription Privilege. See the
“Instructions as to Use of Trinity Place Holdings Inc. Subscription Rights Certificates” for more information.

 

FORM 4-SIGNATURE

 

TO SUBSCRIBE: I acknowledge that I have received the Prospectus
for this Rights Offering and I hereby irrevocably subscribe for the number of shares indicated above on the terms and conditions
specified in the Prospectus. I agree to cooperate with the Company and provide to the Company any and all information requested
by the Company in connection with the exercise of the rights.

 

	Signature(s):  	 
	 	 
	 	 
	 	(Print Name of Signatory and Capacity in which Signed if an Entity)

 

IMPORTANT: The signature(s) must correspond with the name(s)
as printed on the reverse of this Subscription Rights Certificate in every particular, without alteration or enlargement, or any
other change whatsoever.

 

FORM 5-SIGNATURE GUARANTEE

 

This form must be completed if you have completed any portion
of Form 2.

 

	Signature Guaranteed:   	 
	 	(Name of Bank or Firm)

 

	By:  	 
	 	(Signature of Officer)

 

IMPORTANT: The signature(s) should be guaranteed by an eligible
guarantor institution (bank, stock broker, savings & loan association or credit union) with membership in an approved signature
guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15. 

 

	FOR INSTRUCTIONS ON THE USE OF TRINITY PLACE HOLDINGS INC. SUBSCRIPTION RIGHTS CERTIFICATES, CONSULT DF KING & CO., INC., THE INFORMATION AGENT, AT (866) 796 - 7180.

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