Exhibit 4.21


 


NEITHER THIS SECURITY NOR
THE SECURITIES INTO WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES
COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES
ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT
OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND
IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS.


 


COMMON STOCK PURCHASE WARRANT


 


1.   Purchase
Warrant. THIS CERTIFIES THAT, in consideration of funds duly paid by or on behalf of Dawson James Securities, Inc. (“Holder”),
as registered owner of this Purchase Warrant, to Smart for Life, Inc., a Delaware corporation (the “Company”),
Holder is entitled, at any time or from time to time at or before 5:00 p.m., Eastern time, December 8, 2027 (the “Expiration Date”),
but not thereafter, to subscribe for, purchase and receive, in whole or in part, up to 114,286 shares of common stock of the Company,
par value $0.0001 per share (the “Shares”), subject to adjustment as provided in Section 5 hereof. If the Expiration
Date is a day on which banking institutions are authorized by law to close, then this Purchase Warrant may be exercised on the next succeeding
day which is not such a day in accordance with the terms herein. During the period ending on the Expiration Date, the Company agrees not
to take any action that would terminate this Purchase Warrant. This Purchase Warrant is initially exercisable at $0.35 per Share;
provided, however, that upon the occurrence of any of the events specified in Section 5 hereof, the rights granted by this
Purchase Warrant, including the exercise price per Share and the number of Shares to be received upon such exercise, shall be adjusted
as therein specified. The term “Exercise Price” shall mean the initial exercise price or the adjusted exercise price,
depending on the context.


 


2.   Exercise.


 


2.1   Exercise
Form. In order to exercise this Purchase Warrant, the exercise form attached hereto must be duly executed and completed and delivered
to the Company, together with this Purchase Warrant and payment of the Exercise Price for the Shares being purchased payable in cash by
wire transfer of immediately available funds to an account designated by the Company or by certified check or official bank check. If
the subscription rights represented hereby shall not be exercised at or before 5:00 p.m., Eastern time, on the Expiration Date, this Purchase
Warrant shall become and be void without further force or effect, and all rights represented hereby shall cease and expire.


 


2.2   Cashless
Exercise. In lieu of exercising this Purchase Warrant by payment of cash or check payable to the order of the Company pursuant
to Section 2.1 above, this Purchase Warrant may also be exercised, in whole or in part, at such time by means of a “cashless exercise”
in which the Holder shall be entitled to receive a number of Shares equal to the quotient obtained by dividing [(A-B) (X)] by (A), where:


 


(A) = the FMV of one share
of Common Stock;


 


(B) = the Exercise Price of
this Purchase Warrant, as adjusted hereunder; and


 


(X) = the number of shares
of Common Stock underlying the Purchase Warrant that would be issuable upon exercise of this Purchase Warrant in accordance with the terms
of this Warrant if such exercise were by means of a cash exercise rather than a cashless exercise.


 


Notwithstanding anything herein
to the contrary, on the Expiration Date, this Purchase Warrant shall be automatically exercised via cashless exercise pursuant to this
Section 2.2.


 


“FMV” means,
for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is then listed or quoted
on a Trading Market, the value shall be deemed to be the highest intra-day or closing price on any trading day on such Trading Market
on which the Common Stock is then listed or quoted as reported by Bloomberg L.P. (based on a trading day from 9:30 a.m. (New York City
time) to 4:02 p.m. (New York City time)) during the five trading days preceding the exercise, (b) if OTCQB or OTCQX is not a Trading Market,
the value shall be deemed to be the highest intra-day or closing price on any trading day on the OTCQB or OTCQX on which the Common Stock
is then quoted as reported by Bloomberg L.P. (based on a trading day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time))
during the five trading days preceding the exercise, as applicable, (c) if the Common Stock is not then listed or quoted for trading on
OTCQB or OTCQX and if prices for the Common Stock are then reported in the “Pink Sheets” published by OTC Markets Group, Inc.
(or a similar organization or agency succeeding to its functions of reporting prices), the “OTC Markets Group”, the value
shall be deemed to be the highest intra-day or closing price on any trading day on the Pink Sheets on which the Common Stock is then quoted
as reported by OTC Markets Group (based on a trading day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time)) during
the five trading days preceding the exercise, or (d) in all other cases, the fair market value of a share of Common Stock as determined
by an independent appraiser selected in good faith by the Holder and reasonably acceptable to the Company, the fees and expenses of which
shall be paid by the Company.


 






     


     


    

 


“Trading Market”
means the NASDAQ Stock Market LLC, or any of the following other markets or exchanges on which the Common Stock is listed or quoted for
trading on the date in question: the NYSE American, the Nasdaq Global Market, the Nasdaq Global Select Market, the Nasdaq Capital Market
or the New York Stock Exchange (or any successors to any of the foregoing).


 


2.3   Legend.
Each certificate for the securities purchased under this Purchase Warrant shall bear a legend as follows unless such securities have been
registered under the Securities Act of 1933, as amended (the “Act”):


 


“The securities represented
by this certificate have not been registered under the Securities Act of 1933, as amended (the “Act”), or applicable
state law. Neither the securities nor any interest therein may be offered for sale, sold or otherwise transferred except pursuant to an
effective registration statement under the Act, or pursuant to an exemption from registration under the Act and applicable state law which,
in the opinion of counsel to the Company, is available.”


 


2.4   Limitations
on the Number of Shares Issuable. Notwithstanding anything herein to the contrary, the Company shall not issue to the Holder any Shares
to the extent such Shares after giving effect to such issuance after exercise and when added to the number of shares of common stock issued
and issuable upon exercise of common stock purchase warrants being simultaneously issued pursuant to that certain Securities Purchase
Agreement, dated December 8, 2022, among the Company and the purchasers signatory thereto, the Holder (together with the Holder’s
affiliates), would (a) beneficially own in excess of 19.9% of the number of shares of common stock outstanding immediately before giving
effect to such issuances (the “Maximum Aggregate Ownership Amount”) or (b) control in excess of 19.9% of the total
voting power of the Company’s securities outstanding immediately before giving effect to such issuances that are entitled to vote
on a matter being voted on by holders of common stock (the “Maximum Aggregate Voting Amount”), unless and until the
Company obtains stockholder approval permitting such issuances in accordance with applicable Nasdaq Stock Market rules (“Stockholder
Approval”). For purposes of this Section 2.4, beneficial ownership shall be determined in accordance with Section 13(d) of the
Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. For purposes of this Section 2.4, in
determining the number of outstanding shares of common stock, the Holder may rely on the number of outstanding shares of common stock
as reflected in (i) the Company’s most recent Quarterly Report on Form 10-Q or Annual Report on Form 10-K, as the case may be, filed
with the U.S. Securities and Exchange Commission, (ii) a more recent public announcement by the Company, or (iii) any other notice by
the Company or the Company’s transfer agent setting forth the number of shares of common stock outstanding. Upon the written or
oral request of the Holder, the Company shall within two business days confirm orally and in writing to the Holder the number of shares
of common stock then outstanding. If on any attempted exercise of this Purchase Warrant, the issuance of Shares would exceed the Maximum
Aggregate Ownership Amount or the Maximum Aggregate Voting Amount, and the Company shall not have previously obtained Stockholder Approval
at the time of exercise, then the Company shall issue to the Holder requesting exercise such number of Shares as may be issued below the
Maximum Aggregate Ownership Amount or Maximum Aggregate Voting Amount, as the case may be, and, with respect to the remainder of the aggregate
number of Shares, this Purchase Warrant shall not be exercisable until and unless Stockholder Approval has been obtained.


 






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3.   Transfer.
The securities evidenced by this Purchase Warrant shall not be transferred unless and until: (i) if required by applicable law, the Company
has received the opinion of counsel for the Company that the securities may be transferred pursuant to an exemption from registration
under the Act and applicable state securities laws, or (ii) a registration statement or a post-effective amendment to the registration
statement relating to the offer and sale of such securities has been filed by the Company and declared effective by the U.S. Securities
and Exchange Commission and compliance with applicable state securities law has been established. The Company shall provide Holder with
an opinion of counsel for the Company at the Company’s expense.


 


4.   New
Purchase Warrants to be Issued.


 


4.1   Partial
Exercise or Transfer. Subject to the restrictions in Section 3 hereof, this Purchase Warrant may be exercised or assigned in whole
or in part. In the event of the exercise or assignment hereof in part only, upon surrender of this Purchase Warrant for cancellation,
together with the duly executed exercise or assignment form and funds sufficient to pay any Exercise Price and/or transfer tax if exercised
pursuant to Section 2.1 hereto, the Company shall cause to be delivered to the Holder without charge a new Purchase Warrant of like tenor
to this Purchase Warrant in the name of the Holder evidencing the right of the Holder to purchase the number of Shares purchasable hereunder
as to which this Purchase Warrant has not been exercised or assigned.


 


4.2   Lost
Certificate. Upon receipt by the Company of evidence satisfactory to it of the loss, theft, destruction or mutilation of this Purchase
Warrant and of reasonably satisfactory indemnification or the posting of a bond, determined in the sole discretion of the Company, the
Company shall execute and deliver a new Purchase Warrant of like tenor and date. Any such new Purchase Warrant executed and delivered
as a result of such loss, theft, mutilation or destruction shall constitute a substitute contractual obligation on the part of the Company.


 


5.   Adjustments.


 


5.1   Adjustments
to Exercise Price and Number of Securities. The Exercise Price and the number of Shares underlying the Purchase Warrant shall be subject
to adjustment from time to time as hereinafter set forth:


 


5.1.1   Share
Dividends; Split Ups. If, after the date hereof, and subject to the provisions of Section 5.3 below, the number of outstanding Shares
is increased by a stock dividend payable in Shares or by a split up of Shares or other similar event, then, on the effective day thereof,
the number of Shares purchasable hereunder shall be increased in proportion to such increase in outstanding Shares, and the Exercise Price
shall be proportionately decreased.


 


5.1.2   Aggregation
of Shares. If, after the date hereof, and subject to the provisions of Section 5.3 below, the number of outstanding Shares is decreased
by a consolidation, combination or reclassification of Shares or other similar event, then, on the effective date thereof, the number
of Shares purchasable hereunder shall be decreased in proportion to such decrease in outstanding Shares, and the Exercise Price shall
be proportionately increased.


 


5.1.3   Replacement
of Securities upon Reorganization, etc. In case of any reclassification or reorganization of the outstanding Shares other than a change
covered by Section 5.1.1 or 5.1.2 hereof or that solely affects the par value of such Shares, or in the case of any share reconstruction
or amalgamation or consolidation or merger of the Company with or into another corporation (other than a consolidation or share reconstruction
or amalgamation or merger in which the Company is the continuing corporation and that does not result in any reclassification or reorganization
of the outstanding Shares), or in the case of any sale or conveyance to another corporation or entity of the property of the Company as
an entirety or substantially as an entirety in connection with which the Company is dissolved, the Holder of this Purchase Warrant shall
have the right thereafter (until the expiration of the right of exercise of this Purchase Warrant) to receive upon the exercise hereof,
for the same aggregate Exercise Price payable hereunder immediately prior to such event, the kind and amount of shares of stock or other
securities or property (including cash) receivable upon such reclassification, reorganization, share reconstruction or amalgamation, or
consolidation, or upon a dissolution following any such sale or transfer, by a Holder of the number of Shares of the Company obtainable
upon exercise of this Purchase Warrant immediately prior to such event; and if any reclassification also results in a change in Shares
covered by Section 5.1.1 or 5.1.2, then such adjustment shall be made pursuant to Sections 5.1.1, 5.1.2 and this Section 5.1.3. The provisions
of this Section 5.1.3 shall similarly apply to successive reclassifications, reorganizations, share reconstructions or amalgamations,
or consolidations, sales or other transfers.


 


5.1.4   Changes
in Form of Purchase Warrant. This form of Purchase Warrant need not be changed because of any change pursuant to this Section 5.1,
and Purchase Warrants issued after such change may state the same Exercise Price and the same number of Shares as are stated in the Purchase
Warrants initially issued pursuant to this Agreement. The acceptance by any Holder of the issuance of new Purchase Warrants reflecting
a required or permissive change shall not be deemed to waive any rights to an adjustment occurring after the date hereof or the computation
thereof.


 






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5.2   Substitute
Purchase Warrant. In case of any consolidation of the Company with, or share reconstruction or amalgamation or merger of the Company
with or into, another corporation (other than a consolidation or share reconstruction or amalgamation or merger which does not result
in any reclassification or change of the outstanding Shares), the corporation formed by such consolidation or share reconstruction or
amalgamation shall execute and deliver to the Holder a supplemental Purchase Warrant providing that the holder of each Purchase Warrant
then outstanding or to be outstanding shall have the right thereafter (until the stated expiration of such Purchase Warrant) to receive,
upon exercise of such Purchase Warrant, the kind and amount of shares of stock and other securities and property receivable upon such
consolidation or share reconstruction or amalgamation, by a holder of the number of Shares of the Company for which such Purchase Warrant
might have been exercised immediately prior to such consolidation, share reconstruction or amalgamation or merger, sale or transfer. Such
supplemental Purchase Warrant shall provide for adjustments which shall be identical to the adjustments provided for in this Section 5.
The above provision of this Section shall similarly apply to successive consolidations or share reconstructions or amalgamations or mergers.


 


5.3   Elimination
of Fractional Interests. The Company shall not be required to issue certificates representing fractions of Shares upon the exercise
of the Purchase Warrant, nor shall it be required to issue scrip or pay cash in lieu of any fractional interests, it being the intent
of the parties that all fractional interests shall be eliminated by rounding any fraction up or down, as the case may be, to the nearest
whole number of Shares or other securities, properties or rights.


 


6.   Reservation.
The Company shall at all times reserve and keep available out of its authorized Shares, solely for the purpose of issuance upon exercise
of the Purchase Warrants, such number of Shares or other securities, properties or rights as shall be issuable upon the exercise thereof.
The Company covenants and agrees that, upon exercise of the Purchase Warrants and payment of the Exercise Price therefor, in accordance
with the terms hereby, all Shares and other securities issuable upon such exercise shall be duly and validly issued, fully paid and non-assessable
and not subject to preemptive rights of any shareholder. The Company further covenants and agrees that upon exercise of the Purchase Warrants
and payment of the exercise price therefor (unless cashlessly exercised), all Shares and other securities issuable upon such exercise
shall be duly and validly issued, fully paid and non-assessable and not subject to preemptive rights of any shareholder. As long as the
Purchase Warrants shall be outstanding, the Company shall use its commercially reasonable efforts to cause all Shares issuable upon exercise
of the Purchase Warrants to be listed (subject to official notice of issuance) on all national securities exchanges (or, if applicable,
quoted on the OTC Bulletin Board or any successor trading market) on which the Shares issued to the public in the Offering may then be
listed and/or quoted.


 


7.   Certain
Notice Requirements.


 


7.1   Holder’s
Right to Receive Notice. Nothing herein shall be construed as conferring upon the Holders the right to vote or consent or to receive
notice as a shareholder for the election of directors or any other matter, or as having any rights whatsoever as a shareholder of the
Company. If, however, at any time prior to the expiration of the Purchase Warrants and their exercise, any of the events described in
Section 7.2 shall occur, then, in one or more of said events, the Company shall deliver to each Holder a copy of each notice relating
to such events given to the other shareholders of the Company at the same time and in the same manner that such notice is given to the
shareholders.


 


7.2   Events
Requiring Notice. The Company shall be required to give the notice described in this Section 7 upon one or more of the following events:
(i) if the Company shall take a record of the holders of its Shares for the purpose of entitling them to receive a dividend or distribution
payable otherwise than in cash, or a cash dividend or distribution payable otherwise than out of retained earnings, as indicated by the
accounting treatment of such dividend or distribution on the books of the Company, (ii) the Company shall offer to all the holders of
its Shares any additional shares of capital stock of the Company or securities convertible into or exchangeable for shares of capital
stock of the Company, or any option, right or warrant to subscribe therefor, or (iii) a dissolution, liquidation or winding up of the
Company (other than in connection with a consolidation or share reconstruction or amalgamation) or a sale of all or substantially all
of its property, assets and business shall be proposed.


 






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7.3   Notice
of Change in Exercise Price. The Company shall, promptly after an event requiring a change in the Exercise Price pursuant to Section
5 hereof, send notice to the Holders of such event and change, which shall describe the event causing the change and the method of calculating
same.


 


7.4   Transmittal
of Notices. All notices, requests, consents and other communications under this Purchase Warrant shall be in writing and shall be
deemed to have been duly made when hand delivered, or mailed by express mail or private courier service: (i) if to the registered Holder
of the Purchase Warrant, to the address of such Holder as shown on the books of the Company, or (ii) if to the Company, to following address
or to such other address as the Company may designate by notice to the Holders:


 


If to the Holder:


 


Dawson James Securities, Inc.


1 North Federal Highway – 5th Floor


Boca Raton, FL 33432


Attention: Chief Executive Officer


 


with a copy (which shall not constitute notice) to:


 


Schiff Hardin LLP


901 K Street, NW, Suite 700


Washington, DC 20001


Attn: Ralph V. De Martino, Esq.


Fax No.: 


 


If to the Company:


 


Smart for Life, Inc.


990 S Rogers Circle, Suite 3


Boca Raton, FL 33487


Attention: Chief Executive Officer


 


with a copy (which shall not constitute notice)
to:


 


Bevilacqua PLLC


1050 Connecticut Avenue NW, Suite 500


Washington, DC 20036


Attn: Louis Bevilacqua, Esq.


Fax No.: 


 


8.   Miscellaneous.


 


8.1   Amendments.
All modifications or amendments shall require the written consent of and be signed by (i) the Company and (ii) the Holder.


 


8.2   Headings.
The headings contained herein are for the sole purpose of convenience of reference, and shall not in any way limit or affect the meaning
or interpretation of any of the terms or provisions of this Purchase Warrant.


 


8.3   Entire
Agreement. This Purchase Warrant (together with the other agreements and documents being delivered pursuant to or in connection with
this Purchase Warrant) constitutes the entire agreement of the parties hereto with respect to the subject matter hereof, and supersedes
all prior agreements and understandings of the parties, oral and written, with respect to the subject matter hereof.


 






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8.4   Binding
Effect. This Purchase Warrant shall inure solely to the benefit of and shall be binding upon, the Holder and the Company and their
permitted assignees, respective successors, legal representative and assigns, and no other person shall have or be construed to have any
legal or equitable right, remedy or claim under or in respect of or by virtue of this Purchase Warrant or any provisions herein contained.


 


8.5   Governing
Law; Submission to Jurisdiction; Trial by Jury. This Purchase Warrant shall be governed by and construed and enforced in accordance
with the laws of the State of New York, without giving effect to conflict of laws principles thereof. The Company hereby agrees that any
action, proceeding or claim against it arising out of, or relating in any way to this Purchase Warrant shall be brought and enforced in
the New York Supreme Court, County of New York, or in the United States District Court for the Southern District of New York, and irrevocably
submits to such jurisdiction, which jurisdiction shall be exclusive. The Company hereby waives any objection to such exclusive jurisdiction
and that such courts represent an inconvenient forum. Any process or summons to be served upon the Company may be served by transmitting
a copy thereof by registered or certified mail, return receipt requested, postage prepaid, addressed to it at the address set forth in
Section 7 hereof. Such mailing shall be deemed personal service and shall be legal and binding upon the Company in any action, proceeding
or claim. The Company and the Holder agree that the prevailing party(ies) in any such action shall be entitled to recover from the other
party(ies) all of its reasonable attorneys’ fees and expenses relating to such action or proceeding and/or incurred in connection
with the preparation therefor. The Company (on its behalf and, to the extent permitted by applicable law, on behalf of its stockholders
and affiliates) and the Holder hereby irrevocably waive, to the fullest extent permitted by applicable law, any and all right to trial
by jury in any legal proceeding arising out of or relating to this Agreement or the transactions contemplated hereby.


 


8.6   Waiver,
etc. The failure of the Company or the Holder to at any time enforce any of the provisions of this Purchase Warrant shall not be deemed
or construed to be a waiver of any such provision, nor to in any way affect the validity of this Purchase Warrant or any provision hereof
or the right of the Company or any Holder to thereafter enforce each and every provision of this Purchase Warrant. No waiver of any breach,
non-compliance or non-fulfillment of any of the provisions of this Purchase Warrant shall be effective unless set forth in a written instrument
executed by the party or parties against whom or which enforcement of such waiver is sought; and no waiver of any such breach, non-compliance
or non-fulfillment shall be construed or deemed to be a waiver of any other or subsequent breach, non-compliance or non-fulfillment.


 


[Signature Page Follows]


 






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IN WITNESS WHEREOF, the Company
has caused this Purchase Warrant to be signed by its duly authorized officer as of the 8th day of December, 2022.


 


	Smart for
    Life, Inc.	 
	 	 	 
	By:	/s/
    Darren Minton	 
	 	Name: Darren Minton	 
	 	Title: Chief Executive Officer	 



 






     


     


    

 


[Form to be used to exercise Purchase Warrant]


 


Date: __________, 20___


 


 


The undersigned hereby elects
irrevocably to exercise the Purchase Warrant for ______ shares of common stock, par value $0.0001 per share (the “Shares”),
of Smart for Life, Inc., a Delaware corporation (the “Company”), and hereby makes payment of $____ (at the rate of
$____ per Share) in payment of the Exercise Price pursuant thereto. Please issue the Shares as to which this Purchase Warrant is exercised
in accordance with the instructions given below and, if applicable, a new Purchase Warrant representing the number of Shares for which
this Purchase Warrant has not been exercised.


 


or


 


The undersigned hereby elects
irrevocably to convert its right to purchase ___ Shares of the Company under the Purchase Warrant for ______ Shares, as determined in
accordance with the following formula:


 


dividing [(A-B) (X)] by (A),
where:


 


(A) = the FMV;


 


(B) = the Exercise Price of
this Purchase Warrant, as adjusted hereunder; and


 


(X) = the number
of shares of Common Stock underlying the Purchase Warrant that would be issuable upon exercise of this Purchase Warrant in accordance
with the terms of this Purchase Warrant if such exercise were by means of a cash exercise rather than a cashless exercise.


 


The undersigned agrees and
acknowledges that the calculation set forth above is subject to confirmation by the Company.


 


Please issue the Shares as
to which this Purchase Warrant is exercised in accordance with the instructions given below and, if applicable, a new Purchase Warrant
representing the number of Shares for which this Purchase Warrant has not been converted.


 


	Signature	 	 



 


	Signature Guaranteed	 	 



 


INSTRUCTIONS FOR REGISTRATION OF SECURITIES


 


	Name: 	 	 
	 	(Print in Block Letters)	 
	 	 	 
	Address:	 	 
	 	 	 
	 	 	 



 


NOTICE: The signature to this
form must correspond with the name as written upon the face of the Purchase Warrant without alteration or enlargement or any change whatsoever,
and must be guaranteed by a bank, other than a savings bank, or by a trust company or by a firm having membership on a registered national
securities exchange.


 






     


     


    

 


[Form to be used to assign Purchase Warrant]


 


ASSIGNMENT


 


(To be executed by the registered Holder to effect
a transfer of the within Purchase Warrant)


 


FOR VALUE RECEIVED, __________________ does hereby
sell, assign and transfer unto the right to purchase shares of Common Stock, par value $0.0001 per share, of Smart for Life, Inc., a Delaware
corporation (the “Company”), evidenced by the Purchase Warrant and does hereby authorize the Company to transfer such
right on the books of the Company.


 


Dated: __________, 20__


 


	Signature	 	 


 


	Signature Guaranteed	 	 


 


NOTICE: The signature to this form must correspond with the name as
written upon the face of the within Purchase Warrant without alteration or enlargement or any change whatsoever, and must be guaranteed
by a bank, other than a savings bank, or by a trust company or by a firm having membership on a registered national securities exchange.