FORM 8.3

               PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY            

        A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR MORE     

                      Rule 8.3 of the Takeover Code (the "Code")                   

    1. KEY INFORMATION

    (a) Full name of discloser:                          The K2 Principal Fund L.P.        
                                                                                           
    (b) Owner or controller of interests and short       K2 & Associates Investment        
    positions disclosed, if different from 1(a):         Management Inc.                   
    The naming of nominee or vehicle companies is                                          
    insufficient. For a trust, the trustee(s), settlor                                     
    and beneficiaries must be named.                                                       
                                                                                           
    (c) Name of offeror/offeree in relation to whose     Sandstorm Gold Ltd                
    relevant securities this form relates:                                                 
    Use a separate form for each offeror/offeree                                           
                                                                                           
    (d) If an exempt fund manager connected with an                                        
    offeror/offeree, state this and specify identity of                                    
    offeror/offeree:                                                                       
                                                                                           
    (e) Date position held/dealing undertaken:           June 19 2017                      
    For an opening position disclosure, state the latest                                   
    practicable date prior to the disclosure                                               
                                                                                           
    (f) In addition to the company in 1(c) above, is the Mariana Resources Ltd             
    discloser making disclosures in respect of any other                                   
    party to the offer?                                                                    
    If it is a cash offer or possible cash offer, state                                    
    "N/A"                                                                                  

    2. POSITIONS OF THE PERSON MAKING THE DISCLOSURE

    If there are positions or rights to subscribe to disclose in more than one
    class of relevant securities of the offeror or offeree named in 1(c), copy
    table 2(a) or (b) (as appropriate) for each additional class of relevant
    security.

    (a) Interests and short positions in the relevant securities of the offeror or
    offeree to which the disclosure relates following the dealing (if any)

    Class of relevant security:                             Common shares                    
                                                                                             
                                                Interests               Short positions      
                                                                                             
                                              Number          %          Number          %   
                                                                                             
    (1) Relevant securities owned and/                                 (3,045,676)     (2.00)
    or controlled:                                                                           
                                                                                             
    (2) Cash-settled derivatives:                                                            
                                                                                             
    (3) Stock-settled derivatives                                      (1,392,700)     (0.92)
    (including options) and agreements                                                       
    to purchase/sell:                                                                        
                                                                                             
                                                                       (4,438,376)     (2.92)
    TOTAL:                                                                                   

       

    Class of relevant security:            Common Share Purchase Warrants USD3.5 27/10/20    
                                                                                             
                                                Interests               Short positions      
                                                                                             
                                              Number          %          Number          %   
                                                                                             
    (1) Relevant securities owned and/       1,000,000       6.66                            
    or controlled:                                                                           
                                                                                             
    (2) Cash-settled derivatives:                                                            
                                                                                             
    (3) Stock-settled derivatives                                                            
    (including options) and agreements                                                       
    to purchase/sell:                                                                        
                                                                                             
                                             1,000,000       6.66                            
    TOTAL:                                                                                   

       

    Class of relevant security:              Common Share Purchase Warrants USD4 3/11/20     
                                                                                             
                                                Interests               Short positions      
                                                                                             
                                              Number          %          Number          %   
                                                                                             
    (1) Relevant securities owned and/       1,200,100      23.97                            
    or controlled:                                                                           
                                                                                             
    (2) Cash-settled derivatives:                                                            
                                                                                             
    (3) Stock-settled derivatives                                                            
    (including options) and agreements                                                       
    to purchase/sell:                                                                        
                                                                                             
                                             1,200,100      23.97                            
    TOTAL:                                                                                   

    All interests and all short positions should be disclosed.

    Details of any open stock-settled derivative positions (including traded
    options), or agreements to purchase or sell relevant securities, should be
    given on a Supplemental Form 8 (Open Positions).

    (b) Rights to subscribe for new securities (including directors' and other
    employee options)

    Class of relevant security in relation to                                              
    which subscription right exists:                                                       
                                                                                           
    Details, including nature of the rights                                                
    concerned and relevant percentages:                                                    

    3. DEALINGS (IF ANY) BY THE PERSON MAKING THE DISCLOSURE

    Where there have been dealings in more than one class of relevant securities of
    the offeror or offeree named in 1(c), copy table 3(a), (b), (c) or (d) (as
    appropriate) for each additional class of relevant security dealt in.

    The currency of all prices and other monetary amounts should be stated.

    (a) Purchases and sales

      Class of relevant       Purchase/sale     Number of securities     Price per unit    
          security                                                                         
                                                                                           
    Common shares         Sale                  37930                 4.8501 CAD           
                                                                                           
    Common shares         Purchase              1240                  3.6573 USD           
                                                                                           

       

      Class of relevant       Purchase/sale     Number of securities     Price per unit    
          security                                                                         
                                                                                           

    (b) Cash-settled derivative transactions

        Class of        Product         Nature of dealing       Number of    Price per unit
        relevant      description    e.g. opening/closing a     reference                  
        security        e.g. CFD      long/short position,      securities                 
                                      increasing/reducing a                                
                                       long/short position                                 
                                                                                           

    (c) Stock-settled derivative transactions (including options)

    (i) Writing, selling, purchasing or varying

    Class of    Product      Writing,   Number of  Exercise     Type      Expiry    Option  
    relevant  description  purchasing,  securities price per    e.g.       date      money  
    security   e.g. call     selling,    to which    unit    American,               paid/  
                 option    varying etc.   option              European             received 
                                         relates                etc.               per unit 
                                                                                            
    Common    Call option  Writing      3300       7 USD     American   Jan 18     0.2712   
    shares                                                              2019                
                                                                                            

    (ii) Exercise

    Class of relevant      Product         Exercising/        Number of      Exercise price 
        security         description    exercised against    securities         per unit    
                      e.g. call option                                                      
                                                                                            

    (d) Other dealings (including subscribing for new securities)

     Class of relevant       Nature of dealing             Details        Price per unit (if
         security            e.g. subscription,                              applicable)    
                                 conversion                                                 
                                                                                            

    4. OTHER INFORMATION

    (a) Indemnity and other dealing arrangements

    Details of any indemnity or option arrangement, or any agreement or                    
    understanding, formal or informal, relating to relevant securities which may be        
    an inducement to deal or refrain from dealing entered into by the person making        
    the disclosure and any party to the offer or any person acting in concert with         
    a party to the offer:                                                                  
    Irrevocable commitments and letters of intent should not be included. If there         
    are no such agreements, arrangements or understandings, state "none"                   
                                                                                           
                                                                                           
    None                                                                                   

    (b) Agreements, arrangements or understandings relating to options or
    derivatives

    Details of any agreement, arrangement or understanding, formal or informal,            
    between the person making the disclosure and any other person relating to:             
    (i) the voting rights of any relevant securities under any option; or                  
    (ii) the voting rights or future acquisition or disposal of any relevant               
    securities to which any derivative is referenced:                                      
    If there are no such agreements, arrangements or understandings, state "none"          
                                                                                           
                                                                                           
    None                                                                                   
                                                                                           

    (c) Attachments

    Is a Supplemental Form 8 (Open Positions) attached?                          Yes       

       

    Date of disclosure:                         June 20 2017                               
                                                                                           
    Contact name:                               Daniel Gosselin                            
                                                                                           
    Telephone number:                           416 365 2155                               

    Public disclosures under Rule 8 of the Code must be made to a Regulatory
    Information Service and must also be emailed to the Takeover Panel at 
    monitoring@disclosure.org.uk. The Panel's Market Surveillance Unit is available
    for consultation in relation to the Code's disclosure requirements on +44 (0)20
    7638 0129.

    The Code can be viewed on the Panel's website at http://
    www.thetakeoverpanel.org.uk/.

                                               SUPPLEMENTAL FORM 8 (OPEN POSITIONS)

        DETAILS OF OPEN STOCK-SETTLED DERIVATIVE (INCLUDING OPTION) POSITIONS,     
                          AGREEMENTS TO PURCHASE OR SELL ETC.                      

                 Note 5(i) on Rule 8 of the Takeover Code (the "Code")             

    1. KEY INFORMATION

    Full name of person making disclosure:               The K2 Principal Fund L.P.        
                                                                                           
    Name of offeror/offeree in relation to whose         Sandstorm Gold Ltd.               
    relevant securities the disclosure relates:                                            

    2. STOCK-SETTLED DERIVATIVES (INCLUDING OPTIONS)

     Class of      Product     Written or     Number of    Exercise     Type     Expiry date
     relevant    description    purchased   securities to price per     e.g.                
     security     e.g. call                 which option     unit     American,             
                   option                   or derivative             European              
                                               relates                  etc.                
                                                                                            
    Common      Call option   Written       36000         10 USD     American    19-Jan-2018
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       45000         3 USD      American    19-Jan-2018
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       27800         4 USD      American    18-Jan-2019
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       282000        4 USD      American    19-Jan-2018
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       5400          4 USD      American    15-Dec-2017
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       22300         5 USD      American    18-Jan-2019
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       26700         5 USD      American    19-Jan-2018
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       28800         5 USD      American    15-Sep-2017
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       14000         6 USD      American    15-Sep-2017
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       39600         7 USD      American    18-Jan-2019
    Shares PV                                                                               
                                                                                            
    Common      Call option   Written       546600        7 USD      American    19-Jan-2018
    Shares PV                                                                               
                                                                                            
    Common      Put option    Purchased     1600          3 USD      American    21-Jul-2017
    Shares PV                                                                               
                                                                                            
    Common      Put option    Purchased     10000         4 CAD      American    19-Jan-2018
    Shares PV                                                                               
                                                                                            
    Common      Put option    Purchased     56900         4 USD      American    15-Sep-2017
    Shares PV                                                                               
                                                                                            
    Common      Put option    Purchased     100000        5 CAD      American    20-Oct-2017
    Shares PV                                                                               
                                                                                            
    Common      Put option    Purchased     100000        6 CAD      American    20-Oct-2017
    Shares PV                                                                               
                                                                                            
    Common      Put option    Purchased     50000         7 CAD      American    20-Oct-2017
    Shares PV                                                                               

    3. AGREEMENTS TO PURCHASE OR SELL ETC.

    Full details should be given so that the nature of the interest or     
    position can be fully understood:                                      
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           

    It is not necessary to provide details on a Supplemental Form (Open Positions)
    with regard to cash-settled derivatives.

    The currency of all prices and other monetary amounts should be stated.

    The Panel's Market Surveillance Unit is available for consultation in relation
    to the Code's disclosure requirements on +44 (0)20 7638 0129.

    The Code can be viewed on the Panel's website at http://
    www.thetakeoverpanel.org.uk/.