Exhibit
10.2


REGISTRATION RIGHTS AGREEMENT


 


This Registration Rights
Agreement (this “Agreement”) is made and entered into as of June 27, 2016, between RegeneRx Biopharmaceuticals,
Inc., a Delaware corporation (the “Company”), and each of the several purchasers signatory hereto (each such
purchaser, a “Purchaser” and, collectively, the “Purchasers”).


 


This Agreement is made
pursuant to the Securities Purchase Agreement, dated as of the date hereof, between the Company and each Purchaser (the “Purchase
Agreement”).


 


The Company and each
Purchaser hereby agrees as follows:


 


1.          Definitions.


 


Capitalized terms used
and not otherwise defined herein that are defined in the Purchase Agreement shall have the meanings given such terms in the Purchase
Agreement. As used in this Agreement, the following terms shall have the following meanings:


 


“Advice”
shall have the meaning set forth in Section 6(d).


 


“Effectiveness
Date” means, with respect to the Initial Registration Statement required to be filed hereunder, the 60th calendar
day following the date hereof (or, in the event of a “full review” by the Commission, the 90th calendar
day following the date hereof) and with respect to any additional Registration Statements which may be required pursuant to Section
2(c) or Section 3(c), the 60th calendar day following the date on which an additional Registration Statement is required
to be filed hereunder (or, in the event of a “full review” by the Commission, the 90th calendar day following
the date such additional Registration Statement is required to be filed hereunder); provided, however, that in the
event the Company is notified by the Commission that one or more of the above Registration Statements will not be reviewed or is
no longer subject to further review and comments, the Effectiveness Date as to such Registration Statement shall be the fifth Trading
Day following the date on which the Company is so notified if such date precedes the dates otherwise required above, provided,
further, if such Effectiveness Date falls on a day that is not a Trading Day, then the Effectiveness Date shall be the next succeeding
Trading Day.


 


“Effectiveness
Period” shall have the meaning set forth in Section 2(a).


 


“Event”
shall have the meaning set forth in Section 2(d).


 


“Event
Date” shall have the meaning set forth in Section 2(d).


 




     


     


    

 


“Filing
Date” means, with respect to the Initial Registration Statement required hereunder, the 30th calendar day
following the date hereof and, with respect to any additional Registration Statements which may be required pursuant to Section
2(c) or Section 3(c), the earliest practical date on which the Company is permitted by SEC Guidance to file such additional Registration
Statement related to the Registrable Securities.


 


“Holder”
or “Holders” means the holder or holders, as the case may be, from time to time of Registrable Securities.


 


“Indemnified
Party” shall have the meaning set forth in Section 5(c).


 


“Indemnifying
Party” shall have the meaning set forth in Section 5(c).


 


“Initial
Registration Statement” means the initial Registration Statement filed pursuant to this Agreement.


 


“Losses”
shall have the meaning set forth in Section 5(a).


 


“Plan
of Distribution” shall have the meaning set forth in Section 2(a).


 


“Prospectus”
means the prospectus included in a Registration Statement (including, without limitation, a prospectus that includes any information
previously omitted from a prospectus filed as part of an effective registration statement in reliance upon Rule 430A promulgated
by the Commission pursuant to the Securities Act), as amended or supplemented by any prospectus supplement, with respect to the
terms of the offering of any portion of the Registrable Securities covered by a Registration Statement, and all other amendments
and supplements to the Prospectus, including post-effective amendments, and all material incorporated by reference or deemed to
be incorporated by reference in such Prospectus.


 


“Registrable
Securities” means, as of any date of determination, (a) a number of Shares common stock issued at the Closing, (b) all
Warrant Shares then issued and issuable upon exercise of the Warrants (assuming on such date the Warrants are exercised in full
without regard to any exercise limitations therein), (c) any additional shares of Common Stock issued and issuable in connection
with any anti-dilution provisions in the Warrants (in each case, without giving effect to any limitations on exercise set forth
in the Warrants), and (d) any securities issued or then issuable upon any stock split, dividend or other distribution, recapitalization
or similar event with respect to the foregoing; provided, however, that any such Registrable Securities shall cease
to be Registrable Securities (and the Company shall not be required to maintain the effectiveness of any, or file another, Registration
Statement hereunder with respect thereto) for so long as (x) a Registration Statement with respect to the sale of such Registrable
Securities is declared effective by the Commission under the Securities Act and such Registrable Securities have been disposed
of by the Holder in accordance with such effective Registration Statement, (y) such Registrable Securities have been previously
sold in accordance with Rule 144, or (z) such securities become eligible for resale without volume or manner-of-sale restrictions
and without current public information pursuant to Rule 144 as set forth in a written opinion letter to such effect, addressed,
delivered and acceptable to the Transfer Agent and the affected Holders (assuming that such securities and any securities issuable
upon exercise, conversion or exchange of which, or as a dividend upon which, such securities were issued or are issuable, were
at no time held by any Affiliate of the Company, and all Warrants are exercised by “cashless exercise” as provided
in Section 2(c) of each of the Warrants), as reasonably determined by the Company, upon the advice of counsel to the Company.


 




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“Registration
Statement” means any registration statement required to be filed hereunder pursuant to Section 2(a) and any additional
registration statements contemplated by Section 2(c) or Section 3(c), including (in each case) the Prospectus, amendments and supplements
to any such registration statement or Prospectus, including pre- and post-effective amendments, all exhibits thereto, and all material
incorporated by reference or deemed to be incorporated by reference in any such registration statement.


 


“Rule
415” means Rule 415 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended or interpreted
from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same purpose
and effect as such Rule.


 


“Rule
424” means Rule 424 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended or interpreted
from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same purpose
and effect as such Rule.


 


“Selling
Stockholder Questionnaire” shall have the meaning set forth in Section 3(a).


 


“SEC
Guidance” means (i) any publicly-available written or oral guidance of the Commission staff, or any comments, requirements
or requests of the Commission staff and (ii) the Securities Act.


 




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2.          Shelf
Registration.


 


(a)          On
or prior to each Filing Date, the Company shall prepare and file with the Commission a Registration Statement covering the resale
of all of the Registrable Securities that are not then registered on an effective Registration Statement for an offering to be
made on a continuous basis pursuant to Rule 415. Each Registration Statement filed hereunder shall be on Form S-3 (except if the
Company is not then eligible to register for resale the Registrable Securities on Form S-3, in which case such registration shall
be on another appropriate form in accordance herewith, subject to the provisions of Section 2(e)) and shall contain (unless otherwise
directed by at least 85% in interest of the Holders) substantially the “Plan of Distribution” attached hereto
as Annex A and substantially the “Selling Stockholder” section attached hereto as Annex B; provided,
however, that no Holder shall be required to be named as an “underwriter” without such Holder’s express
prior written consent. Subject to the terms of this Agreement, the Company shall use its best efforts to cause a Registration Statement
filed under this Agreement (including, without limitation, under Section 3(c)) to be declared effective under the Securities Act
as promptly as possible after the filing thereof, but in any event no later than the applicable Effectiveness Date, and shall use
its best efforts to keep such Registration Statement continuously effective under the Securities Act until the date that all Registrable
Securities covered by such Registration Statement (i) have been sold, thereunder or pursuant to Rule 144, or (ii) may be sold without
volume or manner-of-sale restrictions pursuant to Rule 144 and without the requirement for the Company to be in compliance with
the current public information requirement under Rule 144, as determined by the counsel to the Company pursuant to a written opinion
letter to such effect, addressed and acceptable to the Transfer Agent and the affected Holders (the “Effectiveness Period”).
The Company shall telephonically request effectiveness of a Registration Statement as of 5:00 p.m. Eastern Time on a Trading Day.
The Company shall immediately notify the Holders via facsimile or by e-mail of the effectiveness of a Registration Statement on
the same Trading Day that the Company telephonically confirms effectiveness with the Commission, which shall be the date requested
for effectiveness of such Registration Statement. The Company shall, by 9:30 a.m. Eastern Time on the Trading Day after the effective
date of such Registration Statement, file a final Prospectus with the Commission as required by Rule 424. Failure to so notify
the Holder within one (1) Trading Day of such notification of effectiveness or failure to file a final Prospectus as foresaid shall
be deemed an Event under Section 2(d).


 


(b)          
Notwithstanding the registration obligations set forth in Section 2(a), if the Commission informs the Company that all of the Registrable
Securities cannot, as a result of the application of Rule 415, be registered for resale as a secondary offering on a single registration
statement, the Company agrees to promptly inform each of the Holders thereof and use its commercially reasonable efforts to file
amendments to the Initial Registration Statement as required by the Commission, covering the maximum number of Registrable Securities
permitted to be registered by the Commission, on Form S-3 or such other form available to register for resale the Registrable Securities
as a secondary offering, subject to the provisions of Section 2(e); with respect to filing on Form S-3 or other appropriate form,
and subject to the provisions of Section 2(d) with respect to the payment of liquidated damages; provided, however,
that prior to filing such amendment, the Company shall be obligated to use diligent efforts to advocate with the Commission for
the registration of all of the Registrable Securities in accordance with the SEC Guidance, including without limitation, Compliance
and Disclosure Interpretation 612.09.


 




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(c)          Notwithstanding
any other provision of this Agreement and subject to the payment of liquidated damages pursuant to Section 2(d), if the Commission
or any SEC Guidance sets forth a limitation on the number of Registrable Securities permitted to be registered on a particular
Registration Statement as a secondary offering (and notwithstanding that the Company used diligent efforts to advocate with the
Commission for the registration of all or a greater portion of Registrable Securities), unless otherwise directed in writing by
a Holder as to its Registrable Securities, the number of Registrable Securities to be registered on such Registration Statement
will be reduced as follows:


 


		a.	First, the Company shall reduce or eliminate any securities
to be included other than Registrable Securities;



 


		b.	Second, the Company shall reduce Registrable Securities
represented by Warrant Shares (applied, in the case that some Warrant Shares may be registered, to the Holders on a pro rata basis
based on the total number of unregistered Warrant Shares held by such Holders); and



 


		c.	Third, the Company shall reduce Registrable Securities
represented by Shares.



 


In the event of a cutback hereunder,
the Company shall give the Holder at least five (5) Trading Days prior written notice along with the calculations as to such Holder’s
allotment. In the event the Company amends the Initial Registration Statement in accordance with the foregoing, the Company will
use its best efforts to file with the Commission, as promptly as allowed by Commission or SEC Guidance provided to the Company
or to registrants of securities in general, one or more registration statements on Form S-3 or such other form available to register
for resale those Registrable Securities that were not registered for resale on the Initial Registration Statement, as amended.


 




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(d)          If:
(i) the Initial Registration Statement is not filed on or prior to its Filing Date (if the Company files the Initial Registration
Statement without affording the Holders the opportunity to review and comment on the same as required by Section 3(a) herein, the
Company shall be deemed to have not satisfied this clause (i)), or (ii) the Company fails to file with the Commission a request
for acceleration of a Registration Statement in accordance with Rule 461 promulgated by the Commission pursuant to the Securities
Act, within five Trading Days of the date that the Company is notified (orally or in writing, whichever is earlier) by the Commission
that such Registration Statement will not be “reviewed” or will not be subject to further review, or (iii) prior to
the effective date of a Registration Statement, the Company fails to file a pre-effective amendment and otherwise respond in writing
to comments made by the Commission in respect of such Registration Statement within ten (10) calendar days after the receipt of
comments by or notice from the Commission that such amendment is required in order for such Registration Statement to be declared
effective, or (iv) a Registration Statement registering for resale all of the Registrable Securities is not declared effective
by the Commission by the Effectiveness Date of the Initial Registration Statement, or (v) after the effective date of a Registration
Statement, such Registration Statement ceases for any reason to remain continuously effective as to all Registrable Securities
included in such Registration Statement, or the Holders are otherwise not permitted to utilize the Prospectus therein to resell
such Registrable Securities, for more than ten (10) consecutive calendar days or more than an aggregate of fifteen (15) calendar
days (which need not be consecutive calendar days) during any 12-month period (any such failure or breach being referred to as
an “Event”, and for purposes of clauses (i) and (iv), the date on which such Event occurs, and for purpose of
clause (ii) the date on which such five (5) Trading Day period is exceeded, and for purpose of clause (iii) the date which such
ten (10) calendar day period is exceeded, and for purpose of clause (v) the date on which such ten (10) or fifteen (15) calendar
day period, as applicable, is exceeded being referred to as “Event Date”), then, in addition to any other rights
the Holders may have hereunder or under applicable law, on each such Event Date and on each monthly anniversary of each such Event
Date (if the applicable Event shall not have been cured by such date) until the applicable Event is cured, the Company shall pay
to each Holder an amount in cash, as partial liquidated damages and not as a penalty, equal to the product of 1.5% multiplied by
the portion of the Subscription Amount paid by such Holder pursuant to the Purchase Agreement with respect to Initial Shares still
owned by such Holder. If the Company fails to pay any partial liquidated damages pursuant to this Section in full within seven
days after the date payable, the Company will pay interest thereon at a rate of 18% per annum (or such lesser maximum amount that
is permitted to be paid by applicable law) to the Holder, accruing daily from the date such partial liquidated damages are due
until such amounts, plus all such interest thereon, are paid in full. The partial liquidated damages pursuant to the terms hereof
shall apply on a daily pro rata basis for any portion of a month prior to the cure of an Event.


 


(e)          If
Form S-3 is not available for the registration of the resale of Registrable Securities hereunder, the Company shall (i) register
the resale of the Registrable Securities on another appropriate form and (ii) undertake to register the Registrable Securities
on Form S-3 as soon as such form is available, provided that the Company shall maintain the effectiveness of the Registration Statement
then in effect until such time as a Registration Statement on Form S-3 covering the Registrable Securities has been declared effective
by the Commission.


 


(f)          Notwithstanding
anything to the contrary contained herein, in no event shall the Company be permitted to name any Holder or affiliate of a Holder
as any Underwriter without the prior written consent of such Holder.


 




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3.          Registration
Procedures.


 


In connection with
the Company’s registration obligations hereunder, the Company shall:


 


(a)          Not
less than five (5) Trading Days prior to the filing of each Registration Statement and not less than one (1) Trading Day prior
to the filing of any related Prospectus or any amendment or supplement thereto (including any document that would be incorporated
or deemed to be incorporated therein by reference), the Company shall (i) furnish to each Holder copies of all such documents proposed
to be filed, which documents (other than those incorporated or deemed to be incorporated by reference) will be subject to the review
of such Holders, and (ii) cause its officers and directors, counsel and independent registered public accountants to respond to
such inquiries as shall be necessary, in the reasonable opinion of respective counsel to each Holder, to conduct a reasonable investigation
within the meaning of the Securities Act. The Company shall not file a Registration Statement or any such Prospectus or any amendments
or supplements thereto to which the Holders of a majority of the Registrable Securities shall reasonably object in good faith,
provided that, the Company is notified of such objection in writing no later than five (5) Trading Days after the Holders have
been so furnished copies of a Registration Statement or one (1) Trading Day after the Holders have been so furnished copies of
any related Prospectus or amendments or supplements thereto. Each Holder agrees to furnish to the Company a completed questionnaire
in the form attached to this Agreement as Annex C (a “Selling Stockholder Questionnaire”) on a date that
is not less than two (2) Trading Days prior to the Filing Date or by the end of the second (2nd) Trading Day following
the date on which such Holder receives draft materials in accordance with this Section.


 


(b)          (i)
Prepare and file with the Commission such amendments, including post-effective amendments, to a Registration Statement and the
Prospectus used in connection therewith as may be necessary to keep a Registration Statement continuously effective as to the applicable
Registrable Securities for the Effectiveness Period and prepare and file with the Commission such additional Registration Statements
in order to register for resale under the Securities Act all of the Registrable Securities, (ii) cause the related Prospectus to
be amended or supplemented by any required Prospectus supplement (subject to the terms of this Agreement), and, as so supplemented
or amended, to be filed pursuant to Rule 424, (iii) respond as promptly as reasonably possible to any comments received from the
Commission with respect to a Registration Statement or any amendment thereto and provide as promptly as reasonably possible to
the Holders true and complete copies of all correspondence from and to the Commission relating to a Registration Statement (provided
that, the Company shall excise any information contained therein which would constitute material non-public information regarding
the Company or any of its Subsidiaries), and (iv) comply in all material respects with the applicable provisions of the Securities
Act and the Exchange Act with respect to the disposition of all Registrable Securities covered by a Registration Statement during
the applicable period in accordance (subject to the terms of this Agreement) with the intended methods of disposition by the Holders
thereof set forth in such Registration Statement as so amended or in such Prospectus as so supplemented.


 




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(c)          If
during the Effectiveness Period, the number of Registrable Securities at any time exceeds 100% of the number of shares of Common
Stock then registered in a Registration Statement, then the Company shall file as soon as reasonably practicable, but in any case
prior to the applicable Filing Date, an additional Registration Statement covering the resale by the Holders of not less than the
number of such Registrable Securities.


 


(d)          Notify
the Holders of Registrable Securities to be sold (which notice shall, pursuant to clauses (iii) through (vi) hereof, be accompanied
by an instruction to suspend the use of the Prospectus until the requisite changes have been made) as promptly as reasonably possible
(and, in the case of (i)(A) below, not less than one (1) Trading Day prior to such filing) and (if requested by any such Person)
confirm such notice in writing no later than one (1) Trading Day following the day (i)(A) when a Prospectus or any Prospectus supplement
or post-effective amendment to a Registration Statement is proposed to be filed, (B) when the Commission notifies the Company whether
there will be a “review” of such Registration Statement and whenever the Commission comments in writing on such Registration
Statement, and (C) with respect to a Registration Statement or any post-effective amendment, when the same has become effective,
(ii) of any request by the Commission or any other federal or state governmental authority for amendments or supplements to a Registration
Statement or Prospectus or for additional information, (iii) of the issuance by the Commission or any other federal or state governmental
authority of any stop order suspending the effectiveness of a Registration Statement covering any or all of the Registrable Securities
or the initiation of any Proceedings for that purpose, (iv) of the receipt by the Company of any notification with respect to the
suspension of the qualification or exemption from qualification of any of the Registrable Securities for sale in any jurisdiction,
or the initiation or threatening of any Proceeding for such purpose, (v) of the occurrence of any event or passage of time that
makes the financial statements included in a Registration Statement ineligible for inclusion therein or any statement made in a
Registration Statement or Prospectus or any document incorporated or deemed to be incorporated therein by reference untrue in any
material respect or that requires any revisions to a Registration Statement, Prospectus or other documents so that, in the case
of a Registration Statement or the Prospectus, as the case may be, it will not contain any untrue statement of a material fact
or omit to state any material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances
under which they were made, not misleading, and (vi) of the occurrence or existence of any pending corporate development with respect
to the Company that the Company believes may be material and that, in the determination of the Company, makes it not in the best
interest of the Company to allow continued availability of a Registration Statement or Prospectus, provided, however,
in no event shall any such notice contain any information which would constitute material, non-public information regarding the
Company or any of its Subsidiaries.


 




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(e)          Use
its best efforts to avoid the issuance of, or, if issued, obtain the withdrawal of (i) any order stopping or suspending the effectiveness
of a Registration Statement, or (ii) any suspension of the qualification (or exemption from qualification) of any of the Registrable
Securities for sale in any jurisdiction, at the earliest practicable moment.


 


(f)          Furnish
to each Holder, without charge, at least one conformed copy of each such Registration Statement and each amendment thereto, including
financial statements and schedules, all documents incorporated or deemed to be incorporated therein by reference to the extent
requested by such Person, and all exhibits to the extent requested by such Person (including those previously furnished or incorporated
by reference) promptly after the filing of such documents with the Commission; provided, that any such item which is available
on the EDGAR system (or successor thereto) need not be furnished in physical form.


 


(g)          Subject
to the terms of this Agreement, the Company hereby consents to the use of such Prospectus and each amendment or supplement thereto
by each of the selling Holders in connection with the offering and sale of the Registrable Securities covered by such Prospectus
and any amendment or supplement thereto, except after the giving of any notice pursuant to Section 3(d).


 


(h)          
Prior to any resale of Registrable Securities by a Holder, use its commercially reasonable efforts to register or qualify or cooperate
with the selling Holders in connection with the registration or qualification (or exemption from the Registration or qualification)
of such Registrable Securities for the resale by the Holder under the securities or Blue Sky laws of such jurisdictions within
the United States as any Holder reasonably requests in writing, to keep each registration or qualification (or exemption therefrom)
effective during the Effectiveness Period and to do any and all other acts or things reasonably necessary to enable the disposition
in such jurisdictions of the Registrable Securities covered by each Registration Statement; provided, that, the Company shall not
be required to qualify generally to do business in any jurisdiction where it is not then so qualified, subject the Company to any
material tax in any such jurisdiction where it is not then so subject or file a general consent to service of process in any such
jurisdiction.


 


(i)          If
requested by a Holder, cooperate with such Holder to facilitate the timely preparation and delivery of certificates representing
Registrable Securities to be delivered to a transferee pursuant to a Registration Statement, which certificates shall be free,
to the extent permitted by the Purchase Agreement, of all restrictive legends, and to enable such Registrable Securities to be
in such denominations and registered in such names as any such Holder may request.


 




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(j)          Upon
the occurrence of any event contemplated by Section 3(d), as promptly as reasonably possible under the circumstances taking into
account the Company’s good faith assessment of any adverse consequences to the Company and its stockholders of the premature
disclosure of such event, prepare a supplement or amendment, including a post-effective amendment, to a Registration Statement
or a supplement to the related Prospectus or any document incorporated or deemed to be incorporated therein by reference, and
file any other required document so that, as thereafter delivered, neither a Registration Statement nor such Prospectus will contain
an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made, not misleading. If the Company notifies the Holders
in accordance with clauses (iii) through (vi) of Section 3(d) above to suspend the use of any Prospectus until the requisite changes
to such Prospectus have been made, then the Holders shall suspend use of such Prospectus. The Company will use its best efforts
to ensure that the use of the Prospectus may be resumed as promptly as is practicable. The Company shall be entitled to exercise
its right under this Section 3(j) to suspend the availability of a Registration Statement and Prospectus, subject to the payment
of partial liquidated damages otherwise required pursuant to Section 2(d), for a period not to exceed 60 calendar days (which
need not be consecutive days) in any 12-month period.


 


(k)          Otherwise
use commercially reasonable efforts to comply with all applicable rules and regulations of the Commission under the Securities
Act and the Exchange Act, including, without limitation, Rule 172 under the Securities Act, file any final Prospectus, including
any supplement or amendment thereof, with the Commission pursuant to Rule 424 under the Securities Act, promptly inform the Holders
in writing if, at any time during the Effectiveness Period, the Company does not satisfy the conditions specified in Rule 172 and,
as a result thereof, the Holders are required to deliver a Prospectus in connection with any disposition of Registrable Securities
and take such other actions as may be reasonably necessary to facilitate the registration of the Registrable Securities hereunder.


 


(l)          The
Company may require each selling Holder to furnish to the Company a certified statement as to the number of shares of Common Stock
beneficially owned by such Holder and, if required by the Commission, the natural persons thereof that have voting and dispositive
control over the shares. During any periods that the Company is unable to meet its obligations hereunder with respect to the registration
of the Registrable Securities solely because any Holder fails to furnish such information within three Trading Days of the Company’s
request, any liquidated damages that are accruing at such time as to such Holder only shall be tolled and any Event that may otherwise
occur solely because of such delay shall be suspended as to such Holder only, until such information is delivered to the Company.


 




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4.          Registration
Expenses. All fees and expenses incident to the performance of or compliance with, this Agreement by the Company shall be borne
by the Company whether or not any Registrable Securities are sold pursuant to a Registration Statement. The fees and expenses referred
to in the foregoing sentence shall include, without limitation, (i) all registration and filing fees (including, without limitation,
fees and expenses of the Company’s counsel and independent registered public accountants) (A) with respect to filings made
with the Commission, (B) with respect to filings required to be made with any Trading Market on which the Common Stock is then
listed for trading, and (C) in compliance with applicable state securities or Blue Sky laws reasonably agreed to by the Company
in writing (including, without limitation, fees and disbursements of counsel for the Company in connection with Blue Sky qualifications
or exemptions of the Registrable Securities), (ii) printing expenses (including, without limitation, expenses of printing certificates
for Registrable Securities), (iii) messenger, telephone and delivery expenses, (iv) fees and disbursements of counsel for the Company,
(v) Securities Act liability insurance, if the Company so desires such insurance, and (vi) fees and expenses of all other Persons
retained by the Company in connection with the consummation of the transactions contemplated by this Agreement. In addition, the
Company shall be responsible for all of its internal expenses incurred in connection with the consummation of the transactions
contemplated by this Agreement (including, without limitation, all salaries and expenses of its officers and employees performing
legal or accounting duties), the expense of any annual audit and the fees and expenses incurred in connection with the listing
of the Registrable Securities on any securities exchange as required hereunder. In no event shall the Company be responsible for
any broker or similar commissions of any Holder or, except to the extent provided for in the Transaction Documents, any legal fees
or other costs of the Holders.


 




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5.          Indemnification.


 


(a)          Indemnification
by the Company. The Company shall, notwithstanding any termination of this Agreement, indemnify and hold harmless each Holder,
the officers, directors, members, partners, agents, brokers (including brokers who offer and sell Registrable Securities as principal
as a result of a pledge or any failure to perform under a margin call of Common Stock), investment advisors and employees (and
any other Persons with a functionally equivalent role of a Person holding such titles, notwithstanding a lack of such title or
any other title) of each of them, each Person who controls any such Holder (within the meaning of Section 15 of the Securities
Act or Section 20 of the Exchange Act) and the officers, directors, members, stockholders, partners, agents and employees (and
any other Persons with a functionally equivalent role of a Person holding such titles, notwithstanding a lack of such title or
any other title) of each such controlling Person, to the fullest extent permitted by applicable law, from and against any and all
losses, claims, damages, liabilities, costs (including, without limitation, reasonable attorneys’ fees) and expenses (collectively,
“Losses”), as incurred, arising out of or relating to (1) any untrue or alleged untrue statement of a material
fact contained in a Registration Statement, any Prospectus or any form of prospectus or in any amendment or supplement thereto
or in any preliminary prospectus, or arising out of or relating to any omission or alleged omission of a material fact required
to be stated therein or necessary to make the statements therein (in the case of any Prospectus or supplement thereto, in light
of the circumstances under which they were made) not misleading or (2) any violation or alleged violation by the Company of the
Securities Act, the Exchange Act or any state securities law, or any rule or regulation thereunder, in connection with the performance
of its obligations under this Agreement, except to the extent, but only to the extent, that (i) such untrue statements or omissions
are based solely upon information regarding such Holder furnished in writing to the Company by such Holder expressly for use therein,
or to the extent that such information relates to such Holder or such Holder’s proposed method of distribution of Registrable
Securities and was reviewed and expressly approved in writing by such Holder expressly for use in a Registration Statement, such
Prospectus or in any amendment or supplement thereto (it being understood that the Holder has approved Annex A hereto for this
purpose) or (ii) in the case of an occurrence of an event of the type specified in Section 3(d)(iii)-(vi), the use by such Holder
of an outdated, defective or otherwise unavailable Prospectus after the Company has notified such Holder in writing that the Prospectus
is outdated, defective or otherwise unavailable for use by such Holder and prior to the receipt by such Holder of the Advice contemplated
in Section 6(d). The Company shall notify the Holders promptly of the institution, threat or assertion of any Proceeding arising
from or in connection with the transactions contemplated by this Agreement of which the Company is aware. Such indemnity shall
remain in full force and effect regardless of any investigation made by or on behalf of such indemnified person and shall survive
the transfer of any Registrable Securities by any of the Holders in accordance with Section 6(h).


 




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(b)          Indemnification
by Holders. Each Holder shall, severally and not jointly, indemnify and hold harmless the Company, its directors, officers,
agents and employees, each Person who controls the Company (within the meaning of Section 15 of the Securities Act and Section
20 of the Exchange Act), and the directors, officers, agents or employees of such controlling Persons, to the fullest extent permitted
by applicable law, from and against all Losses, as incurred, to the extent arising out of or based solely upon: any untrue or alleged
untrue statement of a material fact contained in any Registration Statement, any Prospectus, or in any amendment or supplement
thereto or in any preliminary prospectus, or arising out of or relating to any omission or alleged omission of a material fact
required to be stated therein or necessary to make the statements therein (in the case of any Prospectus or supplement thereto,
in light of the circumstances under which they were made) not misleading (i) to the extent, but only to the extent, that such untrue
statement or omission is contained in any information so furnished in writing by such Holder to the Company expressly for inclusion
in such Registration Statement or such Prospectus or (ii) to the extent, but only to the extent, that such information relates
to such Holder’s information provided in the Selling Stockholder Questionnaire or the proposed method of distribution of
Registrable Securities and was reviewed and expressly approved in writing by such Holder expressly for use in a Registration Statement
(it being understood that the Holder has approved Annex A hereto for this purpose), such Prospectus or in any amendment or supplement
thereto. In no event shall the liability of a selling Holder be greater in amount than the dollar amount of the proceeds (net of
all expenses paid by such Holder in connection with any claim relating to this Section 5 and the amount of any damages such Holder
has otherwise been required to pay by reason of such untrue statement or omission) received by such Holder upon the sale of the
Registrable Securities included in the Registration Statement giving rise to such indemnification obligation.


 


(c)          Conduct
of Indemnification Proceedings. If any Proceeding shall be brought or asserted against any Person entitled to indemnity hereunder
(an “Indemnified Party”), such Indemnified Party shall promptly notify the Person from whom indemnity is sought
(the “Indemnifying Party”) in writing, and the Indemnifying Party shall have the right to assume the defense
thereof, including the employment of counsel reasonably satisfactory to the Indemnified Party and the payment of all fees and expenses
incurred in connection with defense thereof; provided, that, the failure of any Indemnified Party to give such notice shall not
relieve the Indemnifying Party of its obligations or liabilities pursuant to this Agreement, except (and only) to the extent that
it shall be finally determined by a court of competent jurisdiction (which determination is not subject to appeal or further review)
that such failure shall have materially and adversely prejudiced the Indemnifying Party.


 


An Indemnified
Party shall have the right to employ separate counsel in any such Proceeding and to participate in the defense thereof, but the
fees and expenses of such counsel shall be at the expense of such Indemnified Party or Parties unless: (1) the Indemnifying Party
has agreed in writing to pay such fees and expenses, (2) the Indemnifying Party shall have failed promptly to assume the defense
of such Proceeding and to employ counsel reasonably satisfactory to such Indemnified Party in any such Proceeding, or (3) the named
parties to any such Proceeding (including any impleaded parties) include both such Indemnified Party and the Indemnifying Party,
and counsel to the Indemnified Party reasonably believes that a material conflict of interest is likely to exist if the same counsel
were to represent such Indemnified Party and the Indemnifying Party (in which case, if such Indemnified Party notifies the Indemnifying
Party in writing that it elects to employ separate counsel at the expense of the Indemnifying Party, the Indemnifying Party shall
not have the right to assume the defense thereof and the reasonable fees and expenses of no more than one separate counsel shall
be at the expense of the Indemnifying Party). The Indemnifying Party shall not be liable for any settlement of any such Proceeding
effected without its written consent, which consent shall not be unreasonably withheld or delayed. No Indemnifying Party shall,
without the prior written consent of the Indemnified Party, effect any settlement of any pending Proceeding in respect of which
any Indemnified Party is a party, unless such settlement includes an unconditional release of such Indemnified Party from all liability
on claims that are the subject matter of such Proceeding.


 




    	 	13	 



     


    

 


Subject to
the terms of this Agreement, all reasonable fees and expenses of the Indemnified Party (including reasonable fees and expenses
to the extent incurred in connection with investigating or preparing to defend such Proceeding in a manner not inconsistent with
this Section) shall be paid to the Indemnified Party, as incurred, within ten Trading Days of written notice thereof to the Indemnifying
Party; provided, that, the Indemnified Party shall promptly reimburse the Indemnifying Party for that portion of such fees and
expenses applicable to such actions for which such Indemnified Party is finally determined by a court of competent jurisdiction
(which determination is not subject to appeal or further review) not to be entitled to indemnification hereunder.


 


(d)          Contribution.
If the indemnification under Section 5(a) or 5(b) is unavailable to an Indemnified Party or insufficient to hold an Indemnified
Party harmless for any Losses, then each Indemnifying Party shall contribute to the amount paid or payable by such Indemnified
Party, in such proportion as is appropriate to reflect the relative fault of the Indemnifying Party and Indemnified Party in connection
with the actions, statements or omissions that resulted in such Losses as well as any other relevant equitable considerations.
The relative fault of such Indemnifying Party and Indemnified Party shall be determined by reference to, among other things, whether
any action in question, including any untrue or alleged untrue statement of a material fact or omission or alleged omission of
a material fact, has been taken or made by, or relates to information supplied by, such Indemnifying Party or Indemnified Party,
and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such action, statement
or omission. The amount paid or payable by a party as a result of any Losses shall be deemed to include, subject to the limitations
set forth in this Agreement, any reasonable attorneys’ or other fees or expenses incurred by such party in connection with
any Proceeding to the extent such party would have been indemnified for such fees or expenses if the indemnification provided for
in this Section was available to such party in accordance with its terms.


 


The parties
hereto agree that it would not be just and equitable if contribution pursuant to this Section 5(d) were determined by pro rata
allocation or by any other method of allocation that does not take into account the equitable considerations referred to in the
immediately preceding paragraph. In no event shall the contribution obligation of a Holder of Registrable Securities be greater
in amount than the dollar amount of the proceeds (net of all expenses paid by such Holder in connection with any claim relating
to this Section 5 and the amount of any damages such Holder has otherwise been required to pay by reason of such untrue or alleged
untrue statement or omission or alleged omission) received by it upon the sale of the Registrable Securities giving rise to such
contribution obligation.


 




    	 	14	 



     


    

 


The indemnity
and contribution agreements contained in this Section are in addition to any liability that the Indemnifying Parties may have to
the Indemnified Parties.


 


6.          Miscellaneous.


 


(a)          Remedies.
In the event of a breach by the Company or by a Holder of any of their respective obligations under this Agreement, each Holder
or the Company, as the case may be, in addition to being entitled to exercise all rights granted by law and under this Agreement,
including recovery of damages, shall be entitled to specific performance of its rights under this Agreement. Each of the Company
and each Holder agrees that monetary damages would not provide adequate compensation for any losses incurred by reason of a breach
by it of any of the provisions of this Agreement and hereby further agrees that, in the event of any action for specific performance
in respect of such breach, it shall not assert or shall waive the defense that a remedy at law would be adequate.


 


(b)          No
Piggyback on Registrations; Prohibition on Filing Other Registration Statements. Except as set forth on Schedule 6(b)
attached hereto, neither the Company nor any of its security holders (other than the Holders in such capacity pursuant hereto)
may include securities of the Company in any Registration Statements other than the Registrable Securities. The Company shall not
file any other registration statements until all Registrable Securities are registered pursuant to a Registration Statement that
is declared effective by the Commission, provided that this Section 6(b) shall not prohibit the Company from filing amendments
to registration statements filed prior to the date of this Agreement.


 


(c)          [Reserved]


 


(d)          Discontinued
Disposition. By its acquisition of Registrable Securities, each Holder agrees that, upon receipt of a notice from the Company
of the occurrence of any event of the kind described in Section 3(d)(iii) through (vi), such Holder will forthwith discontinue
disposition of such Registrable Securities under a Registration Statement until it is advised in writing (the “Advice”)
by the Company that the use of the applicable Prospectus (as it may have been supplemented or amended) may be resumed. The Company
will use its best efforts to ensure that the use of the Prospectus may be resumed as promptly as is practicable. The Company agrees
and acknowledges that any periods during which the Holder is required to discontinue the disposition of the Registrable Securities
hereunder shall be subject to the provisions of Section 2(d).


 




    	 	15	 



     


    

 


(e)          Piggy-Back
Registrations. If, at any time during the Effectiveness Period, there is not an effective Registration Statement covering all
of the Registrable Securities and the Company shall determine to prepare and file with the Commission a registration statement
relating to an offering for its own account or the account of others under the Securities Act of any of its equity securities,
other than on Form S-4 or Form S-8 (each as promulgated under the Securities Act) or their then equivalents relating to equity
securities to be issued solely in connection with any acquisition of any entity or business or equity securities issuable in connection
with the Company’s stock option or other employee benefit plans, then the Company shall deliver to each Holder a written
notice of such determination and, if within fifteen days after the date of the delivery of such notice, any such Holder shall so
request in writing, the Company shall include in such registration statement all or any part of such Registrable Securities such
Holder requests to be registered; provided, however, that the Company shall not be required to register any Registrable
Securities pursuant to this Section 6(e) that are eligible for resale pursuant to Rule 144 (without volume restrictions or current
public information requirements) promulgated by the Commission pursuant to the Securities Act or that are the subject of a then
effective Registration Statement that is available for resales or other dispositions by such Holder.


 


(f)          Amendments
and Waivers. The provisions of this Agreement, including the provisions of this sentence, may not be amended, modified or supplemented,
and waivers or consents to departures from the provisions hereof may not be given, unless the same shall be in writing and signed
by the Company and the Holders of 67% or more of the then outstanding Registrable Securities (for purposes of clarification, this
includes any Registrable Securities issuable upon exercise or conversion of any Security), provided that, if any amendment, modification
or waiver disproportionately and adversely impacts a Holder (or group of Holders), the consent of such disproportionately impacted
Holder (or group of Holders) shall be required. If a Registration Statement does not register all of the Registrable Securities
pursuant to a waiver or amendment done in compliance with the previous sentence, then the number of Registrable Securities to be
registered for each Holder shall be reduced pro rata among all Holders and each Holder shall have the right to designate which
of its Registrable Securities shall be omitted from such Registration Statement. Notwithstanding the foregoing, a waiver or consent
to depart from the provisions hereof with respect to a matter that relates exclusively to the rights of a Holder or some Holders
and that does not directly or indirectly affect the rights of other Holders may be given only by such Holder or Holders of all
of the Registrable Securities to which such waiver or consent relates; provided, however, that the provisions of
this sentence may not be amended, modified, or supplemented except in accordance with the provisions of the first sentence of this
Section 6(f). No consideration shall be offered or paid to any Person to amend or consent to a waiver or modification of any provision
of this Agreement unless the same consideration also is offered to all of the parties to this Agreement.


 


(g)          Notices.
Any and all notices or other communications or deliveries required or permitted to be provided hereunder shall be delivered as
set forth in the Purchase Agreement.


 




    	 	16	 



     


    

 


(h)          Successors
and Assigns. This Agreement shall inure to the benefit of and be binding upon the successors and permitted assigns of each
of the parties and shall inure to the benefit of each Holder. The Company may not assign (except by merger) its rights or obligations
hereunder without the prior written consent of all of the Holders of the then outstanding Registrable Securities. Each Holder may
assign their respective rights hereunder in the manner and to the Persons as permitted under Section 5.8 of the Purchase Agreement.


 


(i)          No
Inconsistent Agreements. Neither the Company nor any of its Subsidiaries has entered, as of the date hereof, nor shall the
Company or any of its Subsidiaries, on or after the date of this Agreement, enter into any agreement with respect to its securities,
that would have the effect of impairing the rights granted to the Holders in this Agreement or otherwise conflicts with the provisions
hereof. Except as set forth on Schedule 6(i), neither the Company nor any of its Subsidiaries has previously entered into
any agreement granting any registration rights with respect to any of its securities to any Person that have not been satisfied
in full.


 


(j)          Execution
and Counterparts. This Agreement may be executed in two or more counterparts, all of which when taken together shall be considered
one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other
party, it being understood that both parties need not sign the same counterpart. In the event that any signature is delivered by
facsimile transmission or by e-mail delivery of a “.pdf” format data file, such signature shall create a valid and
binding obligation of the party executing (or on whose behalf such signature is executed) with the same force and effect as if
such facsimile or “.pdf” signature page were an original thereof.


 


(k)          Governing
Law. All questions concerning the construction, validity, enforcement and interpretation of this Agreement shall be determined
in accordance with the provisions of the Purchase Agreement.


 


(l)          Cumulative
Remedies. The remedies provided herein are cumulative and not exclusive of any other remedies provided by law.


 


(m)          Severability.
If any term, provision, covenant or restriction of this Agreement is held by a court of competent jurisdiction to be invalid, illegal,
void or unenforceable, the remainder of the terms, provisions, covenants and restrictions set forth herein shall remain in full
force and effect and shall in no way be affected, impaired or invalidated, and the parties hereto shall use their commercially
reasonable efforts to find and employ an alternative means to achieve the same or substantially the same result as that contemplated
by such term, provision, covenant or restriction. It is hereby stipulated and declared to be the intention of the parties that
they would have executed the remaining terms, provisions, covenants and restrictions without including any of such that may be
hereafter declared invalid, illegal, void or unenforceable.


 


(n)          Headings.
The headings in this Agreement are for convenience only, do not constitute a part of the Agreement and shall not be deemed to limit
or affect any of the provisions hereof.


 




    	 	17	 



     


    

 


(o)          Independent
Nature of Holders’ Obligations and Rights. The obligations of each Holder hereunder are several and not joint with the
obligations of any other Holder hereunder, and no Holder shall be responsible in any way for the performance of the obligations
of any other Holder hereunder. Nothing contained herein or in any other agreement or document delivered at any closing, and no
action taken by any Holder pursuant hereto or thereto, shall be deemed to constitute the Holders as a partnership, an association,
a joint venture or any other kind of group or entity, or create a presumption that the Holders are in any way acting in concert
or as a group or entity with respect to such obligations or the transactions contemplated by this Agreement or any other matters,
and the Company acknowledges that the Holders are not acting in concert or as a group, and the Company shall not assert any such
claim, with respect to such obligations or transactions. Each Holder shall be entitled to protect and enforce its rights, including
without limitation the rights arising out of this Agreement, and it shall not be necessary for any other Holder to be joined as
an additional party in any proceeding for such purpose. The use of a single agreement with respect to the obligations of the Company
contained was solely in the control of the Company, not the action or decision of any Holder, and was done solely for the convenience
of the Company and not because it was required or requested to do so by any Holder. It is expressly understood and agreed that
each provision contained in this Agreement is between the Company and a Holder, solely, and not between the Company and the Holders
collectively and not between and among Holders.


 


********************


 


(Signature
Pages Follow)


 




    	 	18	 



     


    

 


IN WITNESS WHEREOF,
the parties have executed this Registration Rights Agreement as of the date first written above.


 


	 	RegeneRx Biopharmaceuticals,
    Inc.
	 	 	 
	 	 	 
	 	By:	/s/ J.J. Finkelstein
	 	 	Name:  J.J. Finkelstein
	 	 	Title:  Chief Executive Officer


 


[SIGNATURE PAGE OF HOLDERS FOLLOWS]


 




    	 	19	 



     


    

 


[SIGNATURE
PAGE OF HOLDERS TO RegeneRx Biopharmaceuticals, Inc. Registration Rights Agreement]


 


	Name of Holder:	  Sabby Healthcare Master Fund, Ltd.


 


	Signature of Authorized Signatory of Holder:	  /s/ Robert Grundstein


 


	Name of Authorized Signatory:	  Robert Grundstein


 


	Title of Authorized Signatory:	  COO of Purchaser’s Investment Manager


 


[SIGNATURE PAGES CONTINUE]


 




    	 	20	 



     


    

 


[SIGNATURE
PAGE OF HOLDERS TO RegeneRx Biopharmaceuticals, Inc. Registration Rights Agreement]


 


	Name of Holder:	  Sabby Volatility Master Fund, Ltd.


 


	Signature of Authorized Signatory of Holder:	  /s/ Robert Grundstein


 


	Name of Authorized Signatory:	  Robert Grundstein


 


	Title of Authorized Signatory:	  COO of Purchaser’s Investment Manager


 




    	 	21	 



     


    

 


Annex A


 


Plan of Distribution


 


Each Selling Stockholder
(the “Selling Stockholders”) of the securities and any of their pledgees, assignees and successors-in-interest
may, from time to time, sell any or all of their securities covered hereby on the OTCQB or any other stock exchange, market or
trading facility on which the securities are traded or in private transactions. These sales may be at fixed or negotiated prices.
A Selling Stockholder may use any one or more of the following methods when selling securities:


 


		·	ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers;



 


		·	block trades in which the broker-dealer will attempt to sell the securities as agent but may position and resell a portion
of the block as principal to facilitate the transaction;



 


		·	purchases by a broker-dealer as principal and resale by the broker-dealer for its account;



 


		·	an exchange distribution in accordance with the rules of the applicable exchange;



 


		·	privately negotiated transactions;



 


		·	settlement of short sales;



 


		·	in transactions through broker-dealers that agree with the Selling Stockholders to sell a specified number of such securities
at a stipulated price per security;



 


		·	through the writing or settlement of options or other hedging transactions, whether through an options exchange or otherwise;



 


		·	a combination of any such methods of sale; or



 


		·	any other method permitted pursuant to applicable law.



 


The Selling Stockholders
may also sell securities under Rule 144 under the Securities Act of 1933, as amended (the “Securities Act”),
if available, rather than under this prospectus.


 


Broker-dealers engaged
by the Selling Stockholders may arrange for other brokers-dealers to participate in sales. Broker-dealers may receive commissions
or discounts from the Selling Stockholders (or, if any broker-dealer acts as agent for the purchaser of securities, from the purchaser)
in amounts to be negotiated, but, except as set forth in a supplement to this Prospectus, in the case of an agency transaction
not in excess of a customary brokerage commission in compliance with FINRA Rule 2440; and in the case of a principal transaction
a markup or markdown in compliance with FINRA IM-2440.


 




     


     


    

 


In connection with
the sale of the securities or interests therein, the Selling Stockholders may enter into hedging transactions with broker-dealers
or other financial institutions, which may in turn engage in short sales of the securities in the course of hedging the positions
they assume. The Selling Stockholders may also sell securities short and deliver these securities to close out their short positions,
or loan or pledge the securities to broker-dealers that in turn may sell these securities. The Selling Stockholders may also enter
into option or other transactions with broker-dealers or other financial institutions or create one or more derivative securities
which require the delivery to such broker-dealer or other financial institution of securities offered by this prospectus, which
securities such broker-dealer or other financial institution may resell pursuant to this prospectus (as supplemented or amended
to reflect such transaction).


 


The Selling Stockholders
and any broker-dealers or agents that are involved in selling the securities may be deemed to be “underwriters” within
the meaning of the Securities Act in connection with such sales. In such event, any commissions received by such broker-dealers
or agents and any profit on the resale of the securities purchased by them may be deemed to be underwriting commissions or discounts
under the Securities Act. Each Selling Stockholder has informed the Company that it does not have any written or oral agreement
or understanding, directly or indirectly, with any person to distribute the securities.


 


The Company is required
to pay certain fees and expenses incurred by the Company incident to the registration of the securities. The Company has agreed
to indemnify the Selling Stockholders against certain losses, claims, damages and liabilities, including liabilities under the
Securities Act.


 


We agreed to keep this
prospectus effective until the earlier of (i) the date on which the securities may be resold by the Selling Stockholders without
registration and without regard to any volume or manner-of-sale limitations by reason of Rule 144, without the requirement for
the Company to be in compliance with the current public information under Rule 144 under the Securities Act or any other rule of
similar effect or (ii) all of the securities have been sold pursuant to this prospectus or Rule 144 under the Securities Act or
any other rule of similar effect. The resale securities will be sold only through registered or licensed brokers or dealers if
required under applicable state securities laws. In addition, in certain states, the resale securities covered hereby may not be
sold unless they have been registered or qualified for sale in the applicable state or an exemption from the registration or qualification
requirement is available and is complied with.


 






    	 	2	 



     


    

 


Under applicable rules
and regulations under the Exchange Act, any person engaged in the distribution of the resale securities may not simultaneously
engage in market making activities with respect to the common stock for the applicable restricted period, as defined in Regulation
M, prior to the commencement of the distribution. In addition, the Selling Stockholders will be subject to applicable provisions
of the Exchange Act and the rules and regulations thereunder, including Regulation M, which may limit the timing of purchases and
sales of the common stock by the Selling Stockholders or any other person. We will make copies of this prospectus available to
the Selling Stockholders and have informed them of the need to deliver a copy of this prospectus to each purchaser at or prior
to the time of the sale (including by compliance with Rule 172 under the Securities Act).


 




    	 	3	 



     


    

  


Annex B


 


RegeneRx
Biopharmaceuticals, Inc.


 


Selling Stockholder Notice and Questionnaire


 


The undersigned beneficial
owner of common stock (the “Registrable Securities”) of RegeneRx Biopharmaceuticals, Inc., a Delaware corporation
(the “Company”), understands that the Company has filed or intends to file with the Securities and Exchange
Commission (the “Commission”) a registration statement (the “Registration Statement”) for
the registration and resale under Rule 415 of the Securities Act of 1933, as amended (the “Securities Act”),
of the Registrable Securities, in accordance with the terms of the Registration Rights Agreement (the “Registration Rights
Agreement”) to which this document is annexed. A copy of the Registration Rights Agreement is available from the Company
upon request at the address set forth below. All capitalized terms not otherwise defined herein shall have the meanings ascribed
thereto in the Registration Rights Agreement.


 


Certain legal consequences
arise from being named as a selling stockholder in the Registration Statement and the related prospectus. Accordingly, holders
and beneficial owners of Registrable Securities are advised to consult their own securities law counsel regarding the consequences
of being named or not being named as a selling stockholder in the Registration Statement and the related prospectus.


 


NOTICE


 


The undersigned beneficial
owner (the “Selling Stockholder”) of Registrable Securities hereby elects to include the Registrable Securities
owned by it in the Registration Statement.


 




     


     


    

 


The undersigned hereby provides the following
information to the Company and represents and warrants that such information is accurate:


 


QUESTIONNAIRE


 


1.          Name.


 


	 	(a)	Full Legal Name of Selling Stockholder
	 	 	 
	 	 	 


 


	 	(b)	Full Legal Name of Registered Holder (if not the same as (a) above) through which Registrable Securities are held:
	 	 	 
	 	 	 


 


	 	(c)	Full Legal Name of Natural Control Person (which means a natural person who directly or indirectly alone or with others has power to vote or dispose of the securities covered by this Questionnaire):
	 	 	 
	 	 	 


 


2. Address for Notices to Selling
Stockholder:


 





	 
	 
	 
	Telephone:	 
	Fax:	 
	Contact Person:	 




 


3. Broker-Dealer Status:


 


		(a)	Are you a broker-dealer?



 


	Yes  ̈    	          No  ̈


 


		(b)	If “yes” to Section 3(a), did you receive
your Registrable Securities as compensation for investment banking services to the Company?



 


	Yes  ̈    	          No  ̈


 


		Note:	If “no” to Section 3(b), the Commission’s
staff has indicated that you should be identified as an underwriter in the Registration Statement.



 




    	 	2	 



     


    

 


		(c)	Are you an affiliate of a broker-dealer?



 


	Yes  ̈    	          No  ̈


 


		(d)	If you are an affiliate of a broker-dealer, do you certify
that you purchased the Registrable Securities in the ordinary course of business, and at the time of the purchase of the Registrable
Securities to be resold, you had no agreements or understandings, directly or indirectly, with any person to distribute the Registrable
Securities?



 


	Yes  ̈    	          No  ̈


 


		Note:	If “no” to Section 3(d), the Commission’s
staff has indicated that you should be identified as an underwriter in the Registration Statement.



 


4. Beneficial Ownership of Securities
of the Company Owned by the Selling Stockholder.


 


Except as set forth below
in this Item 4, the undersigned is not the beneficial or registered owner of any securities of the Company other than the securities
issuable pursuant to the Purchase Agreement.


 


		(a)	Type and Amount of other securities beneficially owned
by the Selling Stockholder:
	 	 	 
	 	 	 



 




    	 	3	 



     


    

 


5. Relationships with the Company:


 


Except as set forth below,
neither the undersigned nor any of its affiliates, officers, directors or principal equity holders (owners of 5% of more of the
equity securities of the undersigned) has held any position or office or has had any other material relationship with the Company
(or its predecessors or affiliates) during the past three years.


 


State any exceptions here:


 


	 	 
	 	 



 


The undersigned agrees
to promptly notify the Company of any material inaccuracies or changes in the information provided herein that may occur subsequent
to the date hereof at any time while the Registration Statement remains effective; provided, that the undersigned shall not be
required to notify the Company of any changes to the number of securities held or owned by the undersigned or its affiliates.


 


By
signing below, the undersigned consents to the disclosure of the information contained herein in its answers to Items 1 through
5 and the inclusion of such information in the Registration Statement and the related prospectus and any amendments or supplements
thereto. The undersigned understands that such information will be relied upon by the Company in
connection with the preparation or amendment of the Registration Statement and the related prospectus and any amendments or supplements
thereto.


 


IN WITNESS WHEREOF
the undersigned, by authority duly given, has caused this Notice and Questionnaire to be executed and delivered either in person
or by its duly authorized agent.


 





	Date:	 	 	Beneficial Owner:	 


 


	 	By:	 
	 	 	Name:
	 	 	Title:




 




    	 	4	 



     


    

 


PLEASE FAX A COPY (OR EMAIL A .PDF COPY)
OF THE COMPLETED AND EXECUTED NOTICE AND QUESTIONNAIRE, AND RETURN THE ORIGINAL BY OVERNIGHT MAIL, TO:


 


RegeneRx Biopharmaceuticals, Inc.


15245 Shady Grove Road


Suite 470


Rockville, MD 20850


Attn: Chief Executive Officer


 




    	 	5