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          UNITED STATES OMB APPROVAL
          SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0101
          Washington, D.C. 20549 Expires: July 31, 2023
            Estimated average burden  
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          FORM 144          
          NOTICE OF PROPOSED SALE OF SECURITIES SEC USE ONLY
          PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933 DOCUMENT SEQUENCE NO.
                                         
                                        CUSIP NUMBER
ATTENTION: Transmit for filing 3 copies of this form concurrently with either placing an order with a broker to execute sale    
    or executing a sale directly with a market maker.   WORK LOCATION
                                         
                                                 
1(a) Name of Issuer (Please type or print) (b) IRS IDENT. NO. (c) SEC FILE NO.  
4Front Ventures Corp. 83-4168417 000-56075  
      (e) Telephone No.
1(d) Address of Issuer Street City State Zip Code Area Code Number
5060 N. 40th Street, Suite 120   Phoenix Arizona 85018 602 633-3067
2(a) Name of Person for Whose Account the Securities are to be Sold (b) Relationship to Issuer Affiliated person is a Director (c) Address street City State Zip Code
Navy Capital Green Co-Invest Fund, LLC Director 28 Reichert Circle Westport CT 06880
                                                 
  INSTRUCTION: The person filing this notice should contact the issuer to obtain the I.R.S. Identification Number and the S.E.C. File Number.  
                                                 
3 (a) (b) SEC USE (c) (d) (e) (f) (g)
  Name and Address of ONLY          
  Each Broker Through            
Title of the Whom the Securities   Number of   Number of Shares Approximate Name of Each
Class of are to be Offered or Each   Shares or Other Aggregate or Other Units Date of Sale Securities
Securities Market Maker Who is Broker-Dealer Units to be Sold Market Value Outstanding (See instr. 3(f)) Exchange
To Be Sold Acquiring the Securities File Number (See instr. 3(c)) (See instr. 3(d)) (See instr. 3(e)) (MO. DAY YR.) (See instr. 3(g))
Class A Subordinate Voting Shares Haywood Securities (USA) Inc. 200 Burrard St. Suite 700 Vancouver, BC, V6C 3L6   2,130,000 $1,525,000 636,636,686 06/03/2022 CSE
                                                 
INSTRUCTIONS:                                            
1. (a)  Name of issuer 3. (a)  Title of the class of securities to be sold
(b)  Issuer’s I.R.S. Identification Number (b)  Name and address of each broker through whom the securities are intended to be sold
(c)  Issuer’s S.E.C. file number, if any (c)  Number of shares or other units to be sold (if debt securities, give the aggregate face amount)
(d)  Issuer’s address, including zip code (d)  Aggregate market value of the securities to be sold as of a specified date within 10 days prior to the
(e)  Issuer’s telephone number, including area code   filing of this notice
                    (e)  Number of shares or other units of the class outstanding, or if debt securities the face amount thereof
2. (a)  Name of person for whose account the securities are to be sold   outstanding, as shown by the most recent report or statement published by the issuer
(b)  Such person’s relationship to the issuer (e.g., officer, director, (f)   Approximate date on which the securities are to be sold
  10% stockholder, or member of immediate family of (g)  Name of each securities exchange, if any, on which the securities are intended to be sold
  any of the foregoing)                              
(c)  Such person’s address, including zip code                              
                                                 
        Potential persons who are to respond to the collection of information contained in this form are not required        
        to respond unless the form displays a currently valid OMB control number.   SEC 1147 (08-07)
                                                 
 
 
                                                 
        TABLE I — SECURITIES TO BE SOLD        
        Furnish the following information with respect to the acquisition of the securities to be sold        
        and with respect to the payment of all or any part of the purchase price or other consideration therefor:        
                                                 
      Name of Person From      
Title of Date You Name of Acquisition Whom Acquired (If gift, Amount of Date of Nature
the Class Acquired Transaction also give date donor acquired) Securities Acquired Payment of Payment
Class A Subordinate Voting Shares 10/20/2018 Purchase of Units 4Front Ventures Corp. 2,130,000 10/20/2018 Cash
                                                 
INSTRUCTIONS: If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the
      consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when
      the note or other obligation was discharged in full or the last installment paid.
                                                 
        TABLE II — SECURITIES SOLD DURING THE PAST 3 MONTHS        
        Furnish the following information as to all securities of the issuer sold during the past 3 months        
        by the person for whose account the securities are to be sold.        
                                                 
Name and Address of Seller Title of Securities Sold Date of Sale Amount of Securities Sold Gross Proceeds
No securities of issuer sold during the past 3 months.        
                                                 
Remarks:                                              
                                                 
 
                                                 
                                                 
                                                 
INSTRUCTIONS:   ATTENTION:
See the definition of “person” in paragraph (a) of Rule 144. Information is to be given not   The person for whose account the securities to which this notice relates are to be sold
only as to the person for whose account the securities are to be sold but also as to all   hereby represents by signing this notice that he does not know any material adverse
other persons included in that definition. In addition, information shall be given as to   information in regard to the current and prospective operations of the Issuer of the securities
sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated   to be sold which has not been publicly disclosed. If such person has adopted a written
with sales for the account of the person filing this notice.   trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act,
                          by signing the form and indicating the date that the plan was adopted or the instruction
                          given, that person makes such representation as of the plan adoption or instruction date.
                                                 
  06/03/2022       /s/ Sean Stiefel, managing member of the investment manager, Navy Capital Green Management, LLC  
  DATE OF NOTICE       (SIGNATURE)  
                                                 
          The notice shall be signed by the person for whose account the securities  
  DATE OF PLAN ADOPTION OR GIVING OF INSTRUCTION,       are to be sold. At least one copy of the notice shall be manually signed.  
  IF RELYING ON RULE 10B5-1.       Any copies not manually signed shall bear typed or printed signatures.  
                                                 
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)
                                                 
                                            SEC 1147 (02-08)