Document:

THIS CONVERTIBLE PROMISSORY NOTE HAS BEEN ACQUIRED FOR INVESTMENT PURPOSES ONLY AND NOT FOR DISTRIBUTION AND MAY BE
      TRANSFERRED OR OTHERWISE DISPOSED OF ONLY IN COMPLIANCE WITH THE SECURITIES ACT OF l933, AS AMENDED (THE “ACT”).

    BIORESTORATIVE THERAPIES,
          INC.

    _____________ __, 201_

    CONVERTIBLE PROMISSORY NOTE

    

    

    DUE __________ __, 2019

    

    

    BIORESTORATIVE THERAPIES,
          INC., a Delaware corporation (the “Company”), hereby promises to pay to ___________________________________________(the “Holder”) at
        the offices of the Company, 40 Marcus Drive, Suite One, Melville, New York 11747, the principal sum of ________________________________________THOUSAND
          DOLLARS ($___________) on ___________ __, 2019 (the “Maturity Date”) in such coin or currency of the United States of America as at the time of payment shall be legal tender for the payment of public and private debts and to pay interest
        on said principal sum at the rate of fifteen percent (15%) per annum through the Maturity Date.  Interest on the principal balance of this Promissory Note (“Note”) from the date hereof shall be payable on the Maturity Date.

     

    

    1. Registered
            Owner.  The Company may consider and treat the person in whose name this Note shall be registered as the absolute owner thereof for all purposes whatsoever (whether or not this Note shall be overdue) and the Company shall not be
        affected by any notice to the contrary.  Subject to the provisions hereof, the registered owner of this Note shall have the right to transfer it by assignment and the transferee thereof, upon its registration as owner of this Note, shall become
        vested with all the powers and rights of the transferor.  Registration of any new owner shall take place upon presentation of this Note to the Company at its offices together with the Note Assignment Form attached hereto duly executed.  In case of
        transfers by operation of law, the transferee shall notify the Company of such transfer and of its address, and shall submit appropriate evidence regarding the transfer so that this Note may be registered in the name of the transferee.  This Note
        is transferable only on the books of the Company by the Holder on the surrender hereof, duly endorsed. Communications sent to any registered owner shall be effective as against all holders or transferees of this Note not registered at the time of
        sending the communication.

    2. Conversion.

    
      	
              2.1

            	
              Conversion Right.

            

    

    

    

    2.1.1 Conversion Right.  Subject to the terms hereof, during the period commencing on the
        date hereof and expiring at 5:00 P.M., New York City local time, on the day immediately preceding the Maturity Date (the “Conversion Period”), the Holder shall have the right to convert, in whole or in part, the then outstanding principal amount of
        this Note, together with accrued interest thereon, into (a) shares of Common Stock, par value $.001 per share, of the Company (“Conversion Stock”) at a conversion price of sixty cents ($0.60) per share of Conversion Stock, subject to adjustment
        pursuant to the provisions of Section 2.2 (the “Conversion Price”) and (b) a warrant in the form attached hereto as Exhibit 1 (the “Warrant”) to purchase such number of shares of Common Stock, par value $.001 per share, of the Company equal to the
        number of shares of Conversion Stock issued upon the conversion of principal hereunder.

    

    

    
      
        

    

    2.1.2 Exercise of Conversion Right.  The foregoing conversion privilege may be exercised
        during the Conversion Period by the delivery by the Holder to the Company by facsimile or other electronic transmission of an election to convert.  Upon delivery by the Holder of its notice of election to convert, this Note shall be deemed
        cancelled and, subject to, and effective upon, the Holder’s delivery of this Note to the Company for cancellation, the Holder shall be deemed to be the holder of record of the shares of Conversion Stock and the Warrant issuable upon such
        conversion, notwithstanding that the stock transfer books of the Company shall then be closed or that certificates representing the Conversion Stock and the Warrant shall not then be actually delivered to the Holder.

    

    

    
      	
              2.2

            	
              Anti-Dilution Provisions.

            

    

    

    

    2.2.1 Adjustments for Stock Dividends;
            Combinations, Etc.  In case the Company shall do any of the following (an “Event”):

    

    

    (i) declare a dividend or other distribution on its Common Stock payable in Common Stock of the Company,

    

    

    (ii) subdivide the outstanding Common Stock pursuant to a stock split or otherwise,

     

    

    (iii) combine the outstanding Common Stock  into a smaller number of shares pursuant to a reverse split or otherwise, or

    

    

    (iv) reclassify its Common Stock,

    

    

    then the Conversion Price in effect at the time of the record date for such dividend or other distribution or of the effective date of such
        subdivision, combination or reclassification shall be adjusted to give effect to such Event.  Each such adjustment of the Conversion Price shall be calculated to the nearest one-hundredth of a cent.  Such adjustment shall be made successively
        whenever any Event listed above shall occur.

    

    

    2.2.2 Adjustment for Reorganization,
            Consolidation or Merger.  In case of any reorganization of the Company (or any other entity, the securities of which are at the time receivable on the conversion of this Note) after the date hereof or in case after such date the
        Company (or any such other entity) shall consolidate with or merge with or into another entity, then, and in each such case, the Holder of this Note upon the conversion thereof as provided in Section 2.1 hereof at any time after the consummation of
        such reorganization, consolidation or merger, shall be entitled to receive, in lieu of the securities and property receivable upon the conversion of this Note prior to such consummation, the securities or property to which such Holder would have
        been entitled upon such consummation if the conversion of this Note had occurred immediately prior thereto, all subject to further adjustment as provided in Section 2.2.1; in each such case, the terms of this Note shall be applicable to the
        securities or property receivable upon the conversion of this Note after such consummation. The Company shall provide the Holder with at least ten (10) business days prior written notice of any reorganization, consolidation or merger described in
        this Section 2.2.2.

    

    

    
      
        

    

    2.3 Reservation of Shares.  During
        the period within which this Note may be converted, the Company shall, at all times, reserve and keep available out of its authorized capital stock, solely for the purposes of issuance upon conversion of this Note, such number of its shares of
        Common Stock as shall be issuable upon the conversion of this Note (including such number of shares of Common Stock as shall be issuable upon exercise of the Warrant issuable upon conversion of this Note); and if at any time the number of shares of
        authorized Common Stock shall not be sufficient to effect the conversion of this Note, the Company will take such corporate action as may be necessary to increase its authorized but unissued  shares of Common Stock to such number of shares as shall
        be sufficient for such purpose; the Company shall have analogous obligations with respect to any other securities or property issuable upon conversion of this Note.

    

    

    2.4 Fractional Shares.  The Company
        shall not be required to issue certificates representing fractions of shares, nor shall it be required to issue scrip or pay cash in lieu of fractional interests, it being the intent of the Company and the Holder that all fractional interests shall
        be eliminated.

    

    

    2.5 Rights of the Holder.  The
        Holder shall not, by virtue hereof, be entitled to any rights of a shareholder of the Company, either at law or in equity, and the rights of the Holder are limited to those expressed in this Note.

    

    

    3. Events of
            Default.  If (a) the Company shall fail to pay the outstanding principal balance of this Note, and accrued interest thereon, on the Maturity Date; (b) the Company shall make a general assignment for the benefit of creditors; (c) the
        Company shall be adjudicated a bankrupt or insolvent; (d) the Company shall file a voluntary petition in bankruptcy or a petition or an answer seeking an arrangement with creditors; (e) the Company shall take advantage of any bankruptcy, insolvency
        or readjustment of debt law or statute or file an answer admitting the material allegations of a petition filed against it in any proceeding under any such law; (f) the Company shall apply for or consent to the appointment of a receiver, trustee or
        liquidator for all or substantially all of its assets; or (g) the Company shall have an involuntary case commenced against it under the Federal bankruptcy laws, which case is not dismissed or stayed within sixty (60) days (each an “Event of
        Default”), then, at any time thereafter and unless such Event of Default shall have been cured or shall have been waived in writing by the Holder, the Holder may, by written notice to the Company, declare the entire unpaid principal amount of this
        Note then outstanding, together with accrued interest thereon, to be forthwith due and payable, whereupon the same shall become forthwith due and payable.

    4. Costs of Collection. 
        If an Event of Default shall occur, the Company shall pay, in addition to the unpaid principal amount of this Note, together with accrued interest thereon, default interest at a rate of twenty percent (20%) per annum effective upon the occurrence
        of the Event of Default (in lieu of the fifteen percent (15%) per annum provided for herein) and the costs and expenses incurred in effecting collection hereunder, including reasonable attorneys’ fees.

    
      
        

    

    5. Investment

            Intent. The Holder, by its acceptance hereof, hereby represents and warrants that this Note is being acquired for investment purposes only and without a view to the distribution thereof, and may be transferred only in compliance with
        the Act.

    6. Transfer to
            Comply with the Securities Act of l933.  This Note may not be sold or otherwise disposed of except as follows: (a) to a person or entity to whom this Note may legally be transferred without registration and without the delivery of a
        current prospectus under the Act with respect thereto; or (b) to any person or entity upon delivery of a prospectus then meeting the require-ments of the Act relating to such securities and the offering thereof for such sale or disposition, and
        thereafter to all successive assignees.

    7. Lost,
            Stolen or Destroyed Note.  In the event that the Holder notifies the Company that this Note has been lost, stolen or destroyed and provides (a) a letter, in form satisfactory to the Company, to the effect that it will indemnify the
        Company from any loss incurred by it in connection therewith, and/or (b) an indemnity bond in such amount as is reasonably required by the Company, the Company having the option of electing either (a) or (b) or both, the Company may, in its sole
        discretion, accept such letter and/or indemnity bond in lieu of the surrender of this Note as required by the terms hereof.

    8. Notices. 

        All notices required hereunder, except as provided for in Section 2, shall be given by first-class mail, postage prepaid, or overnight mail or courier and, if given by the Holder addressed to the Company at 40 Marcus Drive, Suite One, Melville, New
        York 11747, Attention: Secretary, or such other address as the Company may designate in writing to the Holder; and if given by the Company, addressed to the Holder at the address of the Holder shown on the books of the Company.

    9. Applicable Law; Jurisdiction. 

        This Note is issued under, and shall for all purposes be governed by and construed in accordance with, the laws of the State of New York, excluding choice of law principles thereof. The Company and, by its acceptance of this Note, the Holder hereby
        irrevocably consent and submit to the exclusive jurisdiction of any federal or state court located within Nassau or Suffolk County, New York over any dispute arising out of or relating to this Note and each party hereby irrevocably agrees that all
        claims in respect of such dispute or any legal action related thereto shall be heard and determined in such courts.  Each of the Company and the Holder hereby irrevocably waives, to the fullest extent permitted by applicable law, any objection that
        it or he may now or hereafter have to the laying of venue of any such dispute brought in such court or any defense of inconvenient forum for the maintenance of such dispute.

    10. Interpretation. 

        The Company and, by its acceptance of this Note, the Holder acknowledge that they have been represented by counsel, or afforded the opportunity to be represented by counsel, in connection with this Note. Accordingly, any rule of law or any legal
        decision that would require the interpretation of any claimed ambiguities in this Note against the party that drafted it has no application and is expressly waived by the Company and the Holder.  The provisions of this Note shall be interpreted in
        a reasonable manner to give effect to the intent of the Company and the Holder.

    
      
        

    

    11. Miscellaneous. 

        This Note evidences the entire obligation of the Company with respect to the payment of the principal amount hereof and the other matters provided for herein.  No provision of this Note may be modified except by an instrument in writing signed by
        the Company and the Holder.  Payment of the outstanding principal amount of this Note, together with accrued interest thereon, shall be made to the registered Holder of this Note on or after the Maturity Date contemporaneous with and upon
        presentation of this Note for payment.  No interest shall be due on this Note for such period of time that may elapse between the Maturity Date and its presentation for payment.

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    IN
          WITNESS WHEREOF, the Company has caused this Note to be signed on its behalf, in its corporate name, by its duly authorized officer, all as of the day and year first above written.

    BIORESTORATIVE THERAPIES, INC.

    

    

     

    

    By: 

          Mark Weinreb

          Chief Executive Officer

    
      
        

    

    BIORESTORATIVE THERAPIES, INC.

    

    

    NOTE ASSIGNMENT FORM

    

    

    

    

     FOR VALUE RECEIVED, the undersigned _____________________________ (please print or typewrite name of assignor) hereby sells, assigns and transfers unto
        _________________________

    

    (please print or typewrite name, address and social security or taxpayer identification number, if any, of assignee) the within Promissory
        Note of BioRestorative Therapies, Inc., dated ___________, 201_, in the original principal amount of $_______ and hereby authorizes the Company  to transfer this Note on its books.

    

    

    

    	
            TO BE COMPLETED BY INDIVIDUAL

            HOLDER, JOINT TENANTS, TENANTS

            IN COMMON OR AS HOLDERS OF

            COMMUNITY PROPERTY 

             

             

              

            Name(s) of Holder(s) [Please Print]

             

             

              

            Signature of Holder

             

              

            Signature of Holder, if jointly held

             

             

              

            Date

          	
            TO BE COMPLETED BY CORPORATE, 

            

            PARTNERSHIP, LIMITED LIABILITY

            COMPANY OR TRUST HOLDER 

             

              

             

              

            Name of Holder [Please Print]

             

            By: 

                  Authorized Signatory

             

              

            Name and Title of Authorized Signatory

            [Please Print]

             

              

            Date

          

    

    

    Signature(s) Guaranteed:

    

    

    
      
        

    

    

    

    EXHIBIT 1

    VOID AFTER 5:00 P.M., EASTERN TIME, ON ________________ ___, 202_

    NEITHER THIS WARRANT NOR THE WARRANT STOCK (AS HEREINAFTER DEFINED) HAVE BEEN REGISTERED UNDER THE
        SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR THE SECURITIES LAWS OF ANY STATE.  THIS WARRANT AND THE WARRANT STOCK MAY BE TRANSFERRED ONLY IN COMPLIANCE WITH THE ACT AND SUCH LAWS.  THIS LEGEND SHALL BE ENDORSED UPON ANY WARRANT ISSUED IN
        EXCHANGE FOR THIS WARRANT.

     
      

    BIORESTORATIVE THERAPIES, INC.

    (Incorporated under the laws of the State of
        Delaware)

    
      

      

      Warrant

      

      

                                                                           

    

     

    

     
      	
               _______ Shares 

                

            	
                ____________, 201_

            

    

    FOR
          VALUE RECEIVED, BIORESTORATIVE THERAPIES, INC., a Delaware corporation (the “Company”), hereby certifies that ___________________________________ (the “Holder”) is
        entitled, subject to the provisions of this Warrant, to purchase from the Company up to _____________________________________________ (_______) SHARES
          OF COMMON STOCK, $.001 par value per share, of the Company (“Common Shares”) at a price of EIGHTY CENTS ($0.80) per share (the “Exercise Price”) during the period commencing on the date hereof and terminating at 5:00 P.M. on the fifth anniversary of the date hereof.

    The number of Common Shares to be received upon the exercise of this Warrant may be adjusted from
        time to time as hereinafter set forth.  The Common Shares deliverable upon such exercise, and as adjusted from time to time, are hereinafter sometimes referred to as “Warrant Stock.”

    The Holder agrees with the Company that this Warrant is issued, and all the rights hereunder shall be
        held subject to, all of the conditions, limitations and provisions set forth herein.

    1. Exercise of
            Warrants.

    1.1 Exercise.  Exercise of this
        Warrant shall be made upon surrender of this Warrant with the Warrant Exercise Form attached hereto duly completed and signed and delivered to the Company, at its address 40 Marcus Drive, Suite One, Melville, New York 11747 (or such office or
        agency of the Company as it may designate in writing to the Holder hereof).  Payment upon exercise shall be made at the written option of the Holder either (i) in cash, wire transfer or by certified or official bank check payable to the order of
        the Company equal to the applicable aggregate Exercise Price, (ii) by the withholding of shares of Warrant Stock otherwise issuable upon exercise of this Warrant, in accordance with Section 1.2 or (iii) by a combination of either of the foregoing
        methods, for the number of shares of Warrant Stock specified in such form (as such number shall be adjusted to reflect any adjustment in the total number of shares of Warrant Stock issuable to the Holder pursuant to the terms of this Warrant) and
        the Holder shall thereupon be entitled to receive the number of duly authorized, validly issued, fully-paid and non-assessable shares of Warrant Stock determined as provided herein.  The Company shall promptly (but in no event later than five (5)
        business days after the date on which the Company receives this Warrant, the executed Warrant Exercise Form and payment of the Exercise Price, if any (the “Exercise Date”)), issue or cause to be issued  and cause to be delivered to or upon the
        written order of the Holder and in such name or names as the Holder may designate (subject to the restrictions on transfer described in the legend set forth on the face of this Warrant), a certificate for the shares of Warrant Stock issuable upon
        such exercise, with such restrictive legend as required by the Act, as applicable.  Subject to the delivery of this Warrant, the executed Warrant Exercise Form and payment of the Exercise Price, if any, any person so designated by the Holder to
        receive Warrant Stock shall be deemed to have become the holder of record of such shares of Warrant Stock as of the Exercise Date.  If this Warrant is exercised in part only, the Company shall, upon surrender of this Warrant for cancellation,
        execute and deliver a new Warrant evidencing the rights of the Holder hereof to purchase the balance of the shares purchasable hereunder.

     

      

    
      
        

    

    1.2 Net Exercise.  If the Fair
        Market Value (as hereinafter defined) of one Common Share is greater than the Exercise Price of one share of Warrant Stock (at the date of calculation as set forth below), in lieu of exercising this Warrant for cash, the Holder may elect to receive
        shares of Warrant Stock equal to the number of Common Shares computed using the following formula:

    X=Y*(A-B)/A

    Where X= the number of Common Shares to be issued to the Holder

    Y= the number of Common Shares purchasable under this Warrant or, if only a portion of this Warrant is being exercised, the portion of this
        Warrant being exercised (at the date of such calculation)

    A= the Fair Market Value of one Common Share

    B= the Exercise Price (as adjusted to the date of such calculation).

    1.3 Fair Market Value.  For
        purposes hereof, “Fair Market Value” shall be determined as follows:

    (a) if the Common Shares of the Company are listed on any established stock exchange or a national market system, including, without limitation,
        The Nasdaq Stock Market, or quoted on any other market for which closing sales prices are available, including, without limitation, the OTCQB, Fair Market Value shall be the average of the closing sales prices for the Common Shares, as quoted on
        such exchange, system or other market, on the five (5) trading days immediately preceding the date on which the executed Warrant Exercise Form is delivered to the Company;

    (b) if the Common Shares of the Company are quoted but closing sales prices are not reported, then Fair Market Value shall be the average of the
        mean between the high bid and low asked prices for the Common Shares on the five (5) trading days immediately preceding the date on which the executed Warrant Exercise Form is delivered to the Company; or

    
      
        

    

    (c) in the absence of any quotations for the Common Shares of the Company during the five (5) trading days immediately preceding the date on
        which the executed Warrant Exercise Form is delivered to the Company, Fair Market Value shall be determined in good faith by the Board of Directors of the Company.

    2. Registered Owner.  The Company may consider and treat the person in whose name this Warrant shall be registered as the absolute owner thereof for all purposes whatsoever and the Company shall not be affected by any notice to the
          contrary.  Subject to the provisions hereof, the registered owner of this Warrant shall have the right to transfer it by assignment and the transferee thereof, upon his registration as owner of this Warrant, shall become vested with all the
          powers and rights of the transferor.  Registration of any new owner shall take place upon presentation of this Warrant to the Company at its offices together with the Warrant Assignment Form attached hereto duly executed.  In case of transfers by
          operation of law, the transferee shall notify the Company of such transfer and of his address, and shall submit appropriate evidence regarding the transfer so that this Warrant may be registered in the name of the transferee.  This Warrant is
          transferable only on the books of the Company by the Holder on the surrender hereof, duly endorsed. Communications sent to any registered owner shall be effective as against all holders or transferees of this Warrant not registered at the time of
          sending the communication.

    3. Reservation of Shares.  During the period within which the rights
        represented by this Warrant may be exercised, the Company shall, at all times, reserve and keep available out of its authorized capital stock, solely for the purposes of issuance upon exercise of this Warrant, such number of its Common Shares as
        shall be issuable upon the exercise of this Warrant; and if at any time the number of authorized Common Shares shall not be sufficient to effect the exercise of this Warrant, the Company will take such corporate action as may be necessary to
        increase its authorized but unissued Common Shares to such number of shares as shall be sufficient for such purpose; the Company shall have analogous obligations with respect to any other securities or property issuable upon exercise of this
        Warrant.

    4. Fractional Shares.  The Company shall not be required to issue
        certificates representing fractions of Common Shares, nor shall it be required to issue scrip or pay cash in lieu of fractional interests, it being the intent of the Company and the Holder that all fractional interests shall be eliminated.

    5. Rights of the Holder.  The Holder shall not, by virtue hereof, be
        entitled to any voting or other rights of a stockholder of the Company, either at law or in equity, and the rights of the Holder are limited to those expressed in this Warrant.

    6. Anti‐Dilution Provisions.

    6.1 Adjustments for Stock Dividends; Combinations, Etc.  (a) In case
        the Company shall do any of the following (an “Event”):

    (i) declare a dividend or other distribution on its Common Shares payable in Common Shares of the Company,

    (ii) subdivide the outstanding Common Shares pursuant to a stock split or otherwise,

    
      
        

    

    (iii) combine the outstanding Common Shares into a smaller number of shares pursuant to a reverse split or otherwise, or

    (iv) reclassify its Common Shares,

    then the Exercise Price in effect at the time of the record date
          for such dividend or other distribution or of the effective date of such subdivision, combination or reclassification shall be changed to a price determined by dividing (a) the product of the number of Common Shares outstanding immediately prior
          to such Event, multiplied by the Exercise Price in effect immediately prior to such Event by (b) the number of Common Shares outstanding immediately after such Event.  Each such adjustment of the Exercise Price shall be calculated to the nearest
          one-hundredth of a cent.  Such adjustment shall be made successively whenever any Event listed above shall occur.

    

    

    (b) Whenever the Exercise Price is adjusted as set forth in Section 6.1 (whether or not the Company then or thereafter elects to issue additional
        Warrants in substitution for an adjustment in the number of shares of Warrant Stock), the number of shares of Warrant Stock specified in each Warrant which the Holder may purchase shall be adjusted, to the nearest full share, by multiplying such
        number of shares of Warrant Stock immediately prior to such adjustment by a fraction, of which the numerator shall be the Exercise Price immediately prior to such adjustment and the denominator shall be the Exercise Price immediately thereafter.

    6.2 Adjustment for Reorganization, Consolida-tion or Merger.  In case
        of any reorganization of the Company (or any other entity, the securities of which are at the time receivable on the exercise of this Warrant) after the date hereof or in case after such date the Company (or any such other -entity) shall
        consolidate with or merge with or into another entity, then, and in each such case, the Holder of this Warrant upon the exercise thereof as provided in Section l at any time after the consummation of such reorganization, consolidation or merger,
        shall be entitled to receive, in lieu of the securities and property receivable upon the exercise of this Warrant prior to such consummation, the securities or property to which such Holder would have been entitled upon such consummation if such
        Holder had exercised this Warrant immediately prior thereto, all subject to further adjustment as provided in Section 6.l; in each such case, the terms of this Warrant shall be applicable to the securities or property receivable upon the exercise
        of this Warrant after such consummation. The Company shall provide the Holder with at least ten (10) business days prior written notice of any reorganization, consolidation or merger described in this Section 6.2.

    7. Investment Intent.  Unless, prior to the exercise of this Warrant,
        the issuance of the Warrant Stock has been registered with the Securities and Exchange Commission pursuant to the Act, the Warrant Exercise Form shall be accompanied by the Investment Representation Letter attached hereto, duly executed by the
        Holder.

    8. Restrictions on Transfer.

    8.1 Transfer to Comply with the Securities Act of 1933.  Neither this
        Warrant nor any Warrant Stock may be sold, assigned, transferred or otherwise disposed of except as follows:  (1) to a person who, in the opinion of counsel reasonably satisfactory to the Company, is a person to whom this Warrant or the Warrant
        Stock may legally be transferred without registration and without the delivery of a current prospectus under the Act with respect thereto and then only against receipt of an agreement of such person to comply with the provisions of this Section 8
        with respect to any resale, assignment, transfer or other disposition of such securities; or (2) to any person upon delivery of a prospectus then meeting the requirements of the Act relating to such securities and the offering thereof for such
        sale, assignment, transfer or disposition.

    
      
        

    

    8.2 Legend.  Subject to the terms hereof, upon exercise of this Warrant
        and the issuance of the Warrant Stock, all certificates representing such Warrant Stock shall bear on the face or reverse thereof substantially the following legend:

    “THE SHARES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE
        SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”).  NO TRANSFER, SALE, ASSIGNMENT, PLEDGE, HYPOTHECATION, OPTION, LOAN OR OTHER DISPOSITION OF THE SHARES
        EVIDENCED BY THIS CERTIFICATE MAY BE MADE EXCEPT (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT OR (B) IF THE COMPANY HAS BEEN FURNISHED WITH A REASONABLY SATISFACTORY OPINION OF COUNSEL FOR THE HOLDER THAT SUCH TRANSFER, SALE,
        ASSIGNMENT, PLEDGE, HYPOTHECATION OR OTHER DISPOSITION IS EXEMPT FROM THE PROVISIONS OF SECTION 5 OF THE ACT OR THE RULES AND REGULATIONS IN EFFECT THEREUNDER, AND IN COMPLIANCE WITH PROVISIONS OF APPLICABLE STATE SECURITIES LAWS.”

    9. Lost, Stolen or Destroyed Warrant.  In the event that the Holder
        notifies the Company that this Warrant has been lost, stolen or destroyed and provides (a) a letter, in form reasonably satisfactory to the Company, to the effect that it will indemnify the Company from any loss incurred by it in connection
        therewith, and/or (b) an indemnity bond in such amount as is reasonably required by the Company, the Company having the option of electing (in its discretion) either (a) or (b) or both, the Company shall accept such letter and/or indemnity bond in
        lieu of the surrender of this Warrant as required by Section 1 hereof.

    10. Notices.  All notices required hereunder shall be given by
        first-class mail, postage prepaid, or overnight mail or courier and, if given by the Holder addressed to the Company at 40 Marcus Drive, Suite One, Melville, New York 11747, Attention: Chief Executive Officer, or such other address as the Company
        may designate in writing to the Holder; and if given by the Company, addressed to the Holder at the address of the Holder shown on the books of the Company.

    11. Applicable Law; Jurisdiction.  This Warrant is issued under, and
        shall for all purposes be governed by and construed in accordance with, the laws of the State of Delaware, excluding choice of law principles thereof. The Company and, by its acceptance of this Warrant, the Holder hereby irrevocably consent and
        submit to the exclusive jurisdiction of any federal or state court located within Nassau or Suffolk County, New York over any dispute arising out of or relating to this Warrant and each party hereby irrevocably agrees that all claims in respect of
        such dispute or any legal action related thereto shall be heard and determined in such courts.  Each of the Company and the Holder hereby irrevocably waives, to the fullest extent permitted by applicable law, any objection that it or he may now or
        hereafter have to the laying of venue of any such dispute brought in such court or any defense of inconvenient forum for the maintenance of such dispute.

    
      
        

    

    12. Amendments; Waivers.  This Warrant shall not be changed, modified
        or amended except by a writing signed by the party to be charged, and this Warrant may not be discharged except by performance in accordance with its terms or by a writing signed by the party to be charged.

    13. Interpretation.  The Holder, by its acceptance of this Warrant,
        acknowledges that it has been represented by counsel, or afforded the opportunity to be represented by counsel, in connection with this Warrant.  Accordingly, any rule of law or any legal decision that would require the interpretation of any
        claimed ambiguities in this Warrant against the party that drafted it has no application and is expressly waived by the Holder.  The provisions of this Warrant shall be interpreted in a reasonable manner to give effect to the intent of the Company
        and the Holder.

    

    

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    IN WITNESS WHEREOF,
        the Company has caused this Warrant to be signed on its behalf, in its corporate name, by its duly authorized officer, all as of the day and year first above written.

    

    

    BIORESTORATIVE THERAPIES, INC.

     

    

    By: 

           Mark

        Weinreb

          Chief Executive Officer

    

    

    
      
        

    

    BIORESTORATIVE THERAPIES, INC.

    WARRANT EXERCISE FORM

    

    

    To:  BIORESTORATIVE THERAPIES, INC.

    

    

    The undersigned, pursuant to the provisions set forth in the attached Warrant, dated ____________ __, 2019, hereby
        irrevocably elects to purchase (check applicable box):

    

    

    	
            ___

          	
            ________ shares of the Common Stock covered by such Warrant; or

             

          
	
            ___

          	
            the maximum number of shares of Common Stock covered by such Warrant pursuant to the cashless exercise procedure set forth therein.

          

    

    

    The undersigned herewith makes payment of the full purchase price for such shares of $_______ at the price per share
        provided for in such Warrant.  Such payment takes the form of (check applicable box or boxes):

     

    

    	
            ___

          	
            $__________ in lawful money of the United States; and/or

             

          
	
            ___

          	
            the cancellation of such portion of the attached Warrant as is exercisable for a total of _______ shares of Common Stock (using a
                Fair Market Value of $_______ per share, or an aggregate Fair Market Value of $__________, for purposes of this calculation);

          

    

    

    

    

    

    	
             

             

            TO BE COMPLETED BY INDIVIDUAL
              HOLDER, JOINT TENANTS, TENANTS

              IN COMMON OR AS HOLDERS OF

              COMMUNITY PROPERTY

            

             

              

            Name(s) of Holder(s) [Please Print]

             

              

            Signature of Holder

             

              

            Signature of Holder, if jointly held

             

             

              

            Address(es) of Holder(s)

             

              

            Social Security Number(s) of Holder(s)

             

              

            Date

          	
              

            TO BE COMPLETED BY CORPORATE, 

              PARTNERSHIP, LIMITED LIABILITY

              COMPANY OR TRUST HOLDER

            

             

              

             

            
            Name of Holder [Please Print]

             

            By: 

                  Authorized Signatory

             

              

            Name and Title of Authorized Signatory

            [Please Print]

             

              

            Address of Holder

             

              

            Tax Identification Number of Holder

             

              

            Date

             

          

    

    

    Signature(s) must conform in all respects to the

    name of the Holder on the face of the attached Warrant.

    
      
        

    

    BIORESTORATIVE THERAPIES, INC.

    WARRANT ASSIGNMENT FORM

    

    

    

    

    FOR

          VALUE RECEIVED, _________________________ hereby sells, assigns and transfers unto _____________________________ (please type or print name of assignee) with an address at ______________________________________________________________ the
        right to purchase shares of Common Stock of BIORESTORATIVE THERAPIES, INC. (the “Company”) represented by this Warrant dated as of
        _______________ __, 2019 to the extent of ___________ shares and does hereby irrevocably constitute and appoint ___________________ attorney to transfer the same on the books of the Company with full power of substitution in the premises.

    

    	
             

            

            

              TO BE COMPLETED BY INDIVIDUAL
                HOLDER, JOINT TENANTS, TENANTS

                IN COMMON OR AS HOLDERS OF

                COMMUNITY PROPERTY

                 

                  

              

            

            Name(s) of Holder(s) [Please Print]

             

              

            Signature of Holder

             

              

            Signature of Holder, if jointly held

             

             

              

            Date

          	
             
               

                

              TO BE COMPLETED BY CORPORATE, 

              

              PARTNERSHIP, LIMITED LIABILITY

              COMPANY OR TRUST HOLDER

               

             

            

            Name of Holder [Please Print]

             

            By: 

                  Authorized Signatory

             

              

            Name and Title of Authorized Signatory

            [Please Print]

             

              

            Date

          

    

    

    

    

    Signature(s) Guaranteed:

    
      
        

    

    BIORESTORATIVE THERAPIES, INC.

    FORM OF INVESTMENT REPRESENTATION LETTER

    

    

    

    

    BioRestorative Therapies, Inc.

    40 Marcus Drive

    Suite One

    Melville, New York 11747

    

    

    Gentlemen:

    

    

    In connection with the acquisition of _______________ shares of Common Stock (the “Shares”) of BIORESTORATIVE THERAPIES, INC., a Delaware
        corporation (the “Company”), by the undersigned from the Company pursuant to the exercise of a Warrant, dated as of _____________ __, 2019, the undersigned does hereby represent and warrant to the Company as follows:

    
      	
              (a)

            	
              The undersigned represents and warrants that the Shares acquired by it are being acquired for its own account,
                  for investment purposes and not with a view to any distribution within the meaning of the Securities Act of 1933, as amended (the “Securities Act”).  The undersigned will not sell, assign, mortgage, pledge, hypothecate, transfer or
                  otherwise dispose of any of the Shares unless (i) a registration statement under the Securities Act with respect thereto is in effect and the prospectus included therein meets the requirements of Section 10 of the Securities Act, or (ii)
                  the Company has received a written opinion of its counsel that, after an investigation of the relevant facts, such counsel is of the opinion that such proposed sale, assignment, mortgage, pledge, hypothecation, transfer or disposition
                  does not require registration under the Securities Act or any state securities law.

            

    

    
      	
              (b)

            	
              The undersigned understands that the resale of the Shares is not, and is not being, registered under the
                  Securities Act and the Shares must be held indefinitely unless they are subsequently registered thereunder or an exemption from such registration is available.

            

    

    
      	
              (c)

            	
              The undersigned recognizes that the acquisition of the Shares involves a high degree of risk and is suitable
                  only for persons of adequate financial means who have no need for liquidity with respect to the Shares in that (a) it may not be able to liquidate the Shares in the event of emergency; (b) transferability is extremely limited; and (c) it
                  could sustain a complete loss of its investment.

            

    

    
      	
              (d)

            	
              The undersigned represents and warrants that it (a) is competent to understand and does understand the nature
                  of its investment; and (b) is able to bear the economic risk of an acquisition of the Shares.

            

    

    
      	
              (e)

            	
              The undersigned represents and warrants that it is an “accredited investor,” as such term is defined in Rule
                  501 of Regulation D promulgated under the Securities Act.  The undersigned meets the requirements of at least one of the suitability standards for an “accredited investor” as set forth on the Accredited Investor Certification attached
                  hereto.

            

    

    
      	
              (f)

            	
              The undersigned has reviewed the Company’s filings with the Securities and Exchange Commission, including the
                  risk factors set forth therein, and has been afforded the opportunity to obtain such information regarding the Company as it has reasonably requested to evaluate the merits and risks of the undersigned’s investment in the Shares. No oral
                  or written representations have been made or oral information furnished to the undersigned or its advisers in connection with the investment in the Shares.

            

    

    
      	
              (g)

            	
              The Warrant was issued pursuant to the conversion of a Convertible Promissory Note, dated as of __________,
                  201_, in the principal amount of $_________ issued by the Company to the undersigned (the “Note”).

            

    

    
      	
              (h)

            	
              The undersigned confirms that the representations and warranties set forth in the Subscription Agreement
                  pursuant to which the Note was issued are true and correct as of the date hereof as if made on and as of the date hereof with respect to the purchase of the Shares.

            

    

    
      	
              (i)

            	
              The undersigned acknowledges that counsel to the Company will be relying, and may rely, upon the foregoing in
                  connection with any opinion of counsel it may give with regard to the issuance of the Shares by the Company to the undersigned, and any subsequent transfer of the Shares by the undersigned, and agrees to advise the Company and its counsel
                  in writing in the event of any change in any of the foregoing.

            

    

    Very truly yours,

    

    

    

    

    

    	
              

              TO BE COMPLETED BY INDIVIDUAL
                HOLDER, JOINT TENANTS, TENANTS

                IN COMMON OR AS HOLDERS OF

                COMMUNITY PROPERTY

                 

                  

              

            

            Name(s) of Holder(s) [Please Print]

             

              

            Signature of Holder

             

              

            Signature of Holder, if jointly held

             

             

              

            Date

          	
              

            

            TO BE COMPLETED BY CORPORATE, 

              PARTNERSHIP, LIMITED LIABILITY

              COMPANY OR TRUST HOLDER

               

                

            

             

              

            Name of Holder [Please Print]

             

            By: 

                  Authorized Signatory

             

              

            Name and Title of Authorized Signatory

            [Please Print]

             

              

            Date

          

    
      
        

    

    BIORESTORATIVE THERAPIES, INC.

    

    

    WARRANT EXERCISE

    

    

    Accredited Investor Certification

    (Initial the appropriate box(es))

    

    

    

    

    The undersigned represents and warrants that it, he or she is an “accredited investor” based upon the satisfaction of one
        or more of the following criteria:

    

    

    
      
        	_____	
                (1) he or she is a natural person who has a net worth or joint net worth with his or her spouse in excess of $1,000,000 at the time of his or her purchase1;
                    or

              

      

    

    

    

    
      
        	_____	
                (2) he or she is a natural person who had an individual income in excess of $200,000 in each of the two most recent years or a joint income with his or her
                    spouse in excess of $300,000 in each of those years and has a reasonable expectation of reaching the same income level in the current year; or

              

      

    

    

    

    
      
        	_____	
                (3) he or she is a director or executive officer of the Company; or

              

      

    

    

    

    
      
        	_____	
                (4) it is either (a) a bank as defined in Section 3(a)(2) of the Securities Act or a savings and loan association or other institution as defined in Section
                    3(a)(5)(A) of the Securities Act, whether acting in its individual or fiduciary capacity, (b) a broker or dealer registered pursuant to Section 15 of the Securities Exchange Act of 1934, (c) an insurance company as defined in Section
                    2(13) of the Securities Act, (d) an investment company registered under the Investment Company Act of 1940 or a business development company as defined in Section 2(a)(48) of such act, (e) a small business investment company licensed by
                    the United States Small Business Administration under Section 301(c) or (d) of the Small Business Investment Act of 1958, (f) a plan established and maintained by a state or its political subdivisions, or any agency or instrumentality
                    of a state or its political subdivisions, for the benefit of its employees, if such plan has total assets in excess of $5,000,000 or (g) an employee benefit plan within the meaning of Title I of the Employee Retirement Income Security
                    Act of 1974, if the investment decision is made by a plan fiduciary, as defined in Section 3(21) of such act, which plan fiduciary is a bank, savings and loan association, an insurance company or a registered investment advisor, or if
                    the employee benefit plan has total assets in excess of $5,000,000 or, if a self-directed plan, with investment decisions made solely by persons who otherwise meet these suitability standards; or

              

      

    

    

    

    
      ____________________

      1 For purposes of calculating net worth:

      
        	
                (i)

              	
                The undersigned’s primary residence shall not be included as an asset;

              

      

      (ii)   Indebtedness that is secured by the undersigned’s
          primary residence, up to the estimated fair market value of the primary residence at the date hereof, shall not be included as a liability (except that if the amount of such indebtedness outstanding at the date hereof exceeds the amount
          outstanding 60 days before the date hereof, other than as a result of the acquisition of the primary residence, the amount of such excess shall be included as a liability); and

      (iii)  Indebtedness that is secured by the undersigned’s primary residence in excess of the estimated fair market value of the primary
            residence at the date hereof shall be included as a liability.

    

    

    

    
      
        

    

    
      
        	_____	
                (5) it is a private business development company as defined in Section 202(a)(22) of the Investment Advisers Act of 1940; or

              

      

    

    

    

    
      
        	_____	
                (6) it is an organization described in Section 501(c)(3) of the Internal Revenue Code of 1986, as amended, a corporation, a Massachusetts or similar business
                    trust or a partnership not formed for the specific purpose of acquiring the Shares offered hereby, with total assets in excess of $5,000,000; or

              

      

    

    

    

    
      
        	_____	
                (7) it is a trust, with total assets in excess of $5,000,000, not formed for the specific purpose of acquiring the Shares, whose purchase is directed by a
                    sophisticated person who has such knowledge and experience in financial and business matters that he or she is capable of evaluating the merits and risks of the prospective investment; or

              

      

    

    

    

    
      
        	_____	
                (8) it is a corporation, partnership or other entity, and each and every equity owner of such entity initials a separate Accredited Investor Certification
                    pursuant to which it, he or she certifies that it, he or she meets the qualifications set forth in either (1), (2), (3), (4), (5), (6) or (7) above.

              

      

    

    

    

    

    

    

    

    	
            If the Warrant Holder is an INDIVIDUAL, 

            or if the Shares are being acquired as JOINT

            TENANTS, as TENANTS IN COMMON, or

             as COMMUNITY PROPERTY:

             

              

            Name(s) of Warrant Holder

             

              

            Signature of Warrant Holder

             

              

            Signature, if jointly held

             

              

            Date

          	
            If the Warrant Holder is a PARTNERSHIP,
                

            CORPORATION, LIMITED LIABILITY

             COMPANY or TRUST:

             

             

              

            Name of Warrant Holder

             

            By: 

                  Signature of Authorized Representative

             

              

            Name and Title of Authorized Representative

             

              

            DateExhibit 4.3

 

Execution Version

 

ASSIGNMENT AND ASSUMPTION AGREEMENT

 

THIS ASSIGNMENT AND ASSUMPTION AGREEMENT (the “Agreement”) is entered into and effective as of January 4, 2019, by and among Federal Street Acquisition Corp., a Delaware corporation (“FSAC”), Agiliti, Inc., a Delaware corporation (“Agiliti”), and Continental Stock Transfer & Trust Company, a New York corporation (“Continental”).

 

WHEREAS, FSAC and Continental have previously entered into a warrant agreement, dated as of July 18, 2017 (the “Warrant Agreement”), governing the terms of FSAC’s 37,950,000 outstanding warrants to purchase shares of common stock of FSAC (the “Warrants”);

 

WHEREAS, FSAC has entered into an Amended and Restated Agreement and Plan of Merger, dated as of December 19, 2018 (the “Merger Agreement”), by and among FSAC, Agiliti, Umpire SPAC Merger Sub, Inc., a Delaware corporation, Umpire Cash Merger Sub, Inc., a Delaware corporation, Agiliti Holdco, Inc., a Delaware corporation (“Agiliti Holdco”), solely in its capacity as the Majority Stockholder and the Stockholders’ Representative, IPC/UHS, L.P. and solely for Sections 1.6 and 9.12 of the Merger Agreement, Umpire Equity Merger Sub, Inc., a Delaware corporation, pursuant to which (i) FSAC will become a wholly owned subsidiary of Agiliti and the holders of FSAC’s Class A common stock (including Class A common stock issued upon conversion of FSAC’s Class F common stock) will receive shares of common stock of Agiliti; and (ii) Agiliti Holdco, will become a wholly owned subsidiary of FSAC, the equityholders of Agiliti Holdco will receive cash and certain executive officers of Agiliti Holdco will receive cash and shares of common stock, par value $0.0001 per share (the “Common Stock”), of Agiliti and/or fully-vested options to purchase shares of common stock of Agiliti as merger consideration (the transactions contemplated by the Merger Agreement are referred to herein as the “Business Combination”);

 

WHEREAS, pursuant to Section 2.5(b) of the Merger Agreement, upon the consummation of the Business Combination, each Warrant (or portion thereof) issued and outstanding immediately prior thereto shall become exercisable for shares of Common Stock (or an equivalent portion thereof), and the rights and obligations of FSAC under the Warrant Agreement shall be assigned to and assumed by Agiliti; and

 

WHEREAS, as a result of the foregoing, the parties hereto wish for FSAC to assign to Agiliti all of FSAC’s rights, interests and obligations in and under the Warrant Agreement and for Agiliti to accept such assignment and assume all of FSAC’s obligations thereunder, in each case, effective upon the consummation of the Business Combination;

 

NOW, THEREFORE, for good and valuable consideration, receipt of which is hereby acknowledged, the parties hereby agree as follows:

 

1.                                      Assignment and Assumption of Warrant Agreement. FSAC hereby assigns, and Agiliti hereby agrees to accept and assume, effective as of the consummation of the Business Combination, all of FSAC’s rights, interests and obligations in, and under the Warrant Agreement and Warrants. Unless the context otherwise requires, from and after the consummation of the Business Combination, any references in the Warrant Agreement or the

 

 

Warrants to: (i) the “Company” shall mean Agiliti; (ii) “Common Stock” or “shares” shall mean the Common Stock; and (iii) the “Board” or any committee thereof shall mean the board of directors of Agiliti or any committee thereof.

 

2.                                      Replacement Instruments. Following the consummation of the Business Combination, upon request by any holder of a Warrant, Agiliti shall issue a new instrument for such Warrant reflecting the adjustment to the terms and conditions described herein.

 

3.                                      Amendment to Warrant Agreement. To the extent required by this Agreement, the Warrant Agreement is hereby deemed amended pursuant to Section 9.8 thereof to reflect the subject matter contained herein, effective as of the consummation of the Business Combination.

 

4.                                      Governing Law. The validity, interpretation, and performance of this Agreement shall be governed in all respects by the laws of the State of New York, without giving effect to conflicts of law principles that would result in the application of the substantive laws of another jurisdiction.

 

5.                                      Counterpart. This Agreement may be executed in counterparts, each of which shall be deemed to be an original, but all of which together shall constitute one and the same instrument. Execution and delivery of this Agreement by electronic mail or exchange of facsimile of .pdf copies bearing the facsimile signature of a party hereto shall constitute a valid and binding execution and delivery of this Agreement by such party.

 

6.                                      Successors and Assigns. All the covenants and provisions of this Agreement shall bind and inure to the benefit of each party’s respective successors and assigns.

 

[Signature Page Follows]

 

 

IN WITNESS WHEREOF, the parties hereto have signed this Agreement as of the date and year first written above.

 

	
 
    	
FEDERAL   STREET ACQUISITION CORP.
    
	
 
    	
 
    	
 
    
	
 
    	
By:
    	
/s/   James Pekarek
    
	
 
    	
 
    	
Name:
    	
James   Pekarek
    
	
 
    	
 
    	
Title:
    	
Chief   Financial Officer
    
	
 
    	
 
    	
 
    
	
 
    	
AGILITI, INC.
    
	
 
    	
 
    	
 
    
	
 
    	
By:
    	
/s/   Lee M. Neumann
    
	
 
    	
 
    	
Name:
    	
Lee   Neumann
    
	
 
    	
 
    	
Title:
    	
Senior   Vice President, General Counsel and Corporate Secretary
    

 

 

	
 
    	
CONTINENTAL   STOCK TRANSFER & TRUST COMPANY
    
	
 
    	
 
    	
 
    
	
 
    	
By:
    	
/s/   Isaac J. Kagan
    
	
 
    	
 
    	
Name:   Isaac J. Kagan
    
	
 
    	
 
    	
Title:   Vice President

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