Document:

Exhibit 10.14

 

RITTER PHARMACEUTICALS, INC.

 

2008 STOCK PLAN

 

STOCK OPTION AGREEMENT

 

Unless otherwise defined
herein, the terms defined in the 2008 Stock Plan (the “Plan”) shall have the same defined meanings in this Stock Option
Agreement (the “Option Agreement”).

 

I.            NOTICE
OF STOCK OPTION GRANT

 

	 	Name:	Ira E. Ritter
	 	 	 
	 	Address:	c/o Ritter Pharmaceuticals, Inc.
	 	 	1801 Century Park East, No. 1820
	 	 	Los Angeles, California 90067

 

The undersigned Participant has been granted
an Option to purchase Common Stock of the Company, subject to the terms and conditions of the Plan and this Option Agreement, as
follows:

 

	 	Date of Grant:	September 25, 2013 
	 	 	 
	 	Vesting Commencement Date:	See below
	 	 	 
	 	Exercise Price per Share:	$0.1782
	 	 	 
	 	Total Number of Shares Granted:	350,000
	 	 	 
	 	Total Exercise Price:	$62,370.00
	 	 	 
	 	Type of Option:	NSO
	 	 	 
	 	Term/Expiration Date:	September 25, 2023, 5 p.m. Pacific time 

 

Vesting Schedule:

 

This Option shall be
exercisable, in whole or in part, according to the following vesting schedule:

 

(a) As to 25,000 Shares
covered by this Option, upon the achievement of the FDA Milestone (as hereinafter defined), this Option shall vest as to 35% of
such 25,000 Shares, with the balance to vest in 36 equal monthly installments beginning on the last day of the month following
the month in which the FDA Milestone was achieved. For purposes hereof, “FDA Milestone” means any in-person or telephonic
meeting with the FDA regarding, or any written response by the FDA to questions posed by the Company regarding, RP-G28’s
path to FDA approval. The parties acknowledge and agree that the FDA Milestone was achieved on February 20, 2012 and thus 35% of
25,000 shares covered by this Option vested as of February 20, 2012 and the balance began vesting in accordance with the foregoing
schedule as of March 31, 2012.

 

    	 

    	 

    

 

(b) As to 75,000 Shares
covered by this Option, upon the achievement of the Phase II Funding Milestone (as hereinafter defined), this Option shall vest
as to 35% of such 75,000 Shares, with the balance to vest in 36 equal monthly installments beginning on the last day of the month
following the month in which the Phase II Funding Milestone was achieved. For purposes hereof, “Phase II Funding Milestone”
means any commitment by a third-party to fund a Phase II or later clinical trial after the Effective Date, whether or not any such
committed funds are paid directly to the Company.

 

(c)   As
to 50,000 Shares covered by this Option, upon the achievement of the Base Financing Funding Milestone (as hereinafter defined),
this Option shall vest as to 35% of such 50,000 Shares, with the balance to vest in 36 equal monthly installments beginning on
the last day of the month following the month in which the Base Financing Funding Milestone was achieved. For purposes hereof,
“Base Financing Funding Milestone” means the sale of additional equity capital for cash, in one or more closings after
July 17, 2012, and/or the actual deployment of funds by a third party for a clinical trial after the Date of Grant of this Option,
in an aggregate amount in excess of $2,000,000, but no more than $10,000,000.

 

(d)    As
to 100,000 Shares covered by this Option, upon the achievement of the Excess Fundraising Milestone (as hereinafter defined), this
Option shall vest as to 35% of such 100,000 Shares, with the balance to vest in 36 equal monthly installments beginning on the
last day of the month following the month in which the Excess Fundraising Milestone was achieved. For purposes hereof, “Excess
Fundraising Milestone” means the sale of additional equity capital for cash, in one or more closings after July 17, 2012,
and/or the actual deployment of funds by a third party for a clinical trial after the Date of Grant of this Option, in an aggregate
amount in excess of $10,000,000.

 

(e)    As
to 325,000 Shares covered by this Option, upon the receipt by the Company of an Initial Period License Payment (as defined in that
certain Equity Compensation Plan, approved by the Board of Directors of the Company as of the Date of Grant, which Equity Compensation
Plan covers the undersigned Participant; hereinafter, the “Equity Compensation Plan”) of more than $2,000,000, this
Option shall vest as to 35% of such 325,000 Shares, with the balance to vest in 36 equal monthly installments beginning on the
last day of the month following the month in which such Initial Period License Payment is received by the Company.

 

(f)    With
respect to any Annual Excess Milestone Payments (as defined in the Equity Compensation Plan), this Option shall vest as to 35%
of 50,000 Shares covered by this Option, with the balance to vest in 36 equal monthly installments beginning on the last day of
the following month.

 

(g)    Notwithstanding
(i) anything in this Option to the contrary, (ii) the vesting provisions set forth in clauses (a) through (f) immediately above
and (iii) that the number of Shares that may vest pursuant to this Option exceeds the total number of Shares subject to this Option,
the undersigned Participant understands and agrees that (A) the total potential number of Shares that may vest pursuant to this
Option may in no event exceed 350,000 Shares and (B) this Option shall automatically terminate as to any Shares for which a vesting
date or schedule has not been established by September 25, 2015.

 

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Termination Period:

 

This Option shall be
exercisable for three (3) months after Participant ceases to be a Service Provider, unless such termination is due to Participant’s
death or Disability, in which case this Option shall be exercisable for twelve (12) months after Participant ceases to be a Service
Provider. Notwithstanding the foregoing sentence, in no event may this Option be exercised after the Term/Expiration Date as provided
above and may be subject to earlier termination as provided in Section 11(c) of the Plan.

 

II.           AGREEMENT

 

1.            Grant
of Option. The Administrator of the Company hereby grants to the Participant named in the Notice of Stock Option Grant in Part
I of this Agreement (“Participant”), an option (the “Option”) to purchase the number of Shares set forth
in the Notice of Stock Option Grant, at the exercise price per Share set forth in the Notice of Stock Option Grant (the “Exercise
Price”), and subject to the terms and conditions of the Plan, which is incorporated herein by reference. Subject to Section
19(c) of the Plan, in the event of a conflict between the terms and conditions of the Plan and this Option Agreement, the terms
and conditions of the Plan shall prevail.

 

If designated in the
Notice of Stock Option Grant as an Incentive Stock Option (“ISO”), this Option is intended to qualify as an
Incentive Stock Option as defined in Section 422 of the Code. Nevertheless, to the extent that it exceeds the $100,000 rule of
Code Section 422(d), this Option shall be treated as a Nonstatutory Stock Option (“NSO”).

 

2.            Exercise
of Option.

 

(a)          Right
to Exercise. This Option shall be exercisable during its term in accordance with the Vesting Schedule set out in the Notice
of Stock Option Grant and with the applicable provisions of the Plan and this Option Agreement.

 

(b)          Method
of Exercise. This Option shall be exercisable by delivery of an exercise notice in the form attached as Exhibit A (the
“Exercise Notice”) or in a manner and pursuant to such procedures as the Administrator may determine, which shall state
the election to exercise the Option, the number of Shares with respect to which the Option is being exercised, and such other representations
and agreements as may be required by the Company. The Exercise Notice shall be accompanied by payment of the aggregate Exercise
Price as to all Exercised Shares, together with any applicable tax withholding. This Option shall be deemed to be exercised upon
receipt by the Company of such fully executed Exercise Notice accompanied by the aggregate Exercise Price, together with any applicable
tax withholding.

 

No Shares shall be
issued pursuant to the exercise of an Option unless such issuance and such exercise comply with Applicable Laws. Assuming such
compliance, for income tax purposes the Shares shall be considered transferred to Participant on the date on which the Option is
exercised with respect to such Shares.

 

3.            Participant’s
Representations. In the event the Shares have not been registered under the Securities Act of 1933, as amended, at the time
this Option is exercised, Participant

 

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shall, if required by
the Company, concurrently with the exercise of all or any portion of this Option, deliver to the Company his or her Investment
Representation Statement in the form attached hereto as Exhibit B.

 

4.            Lock-Up
Period. Participant hereby agrees that Participant shall not offer, pledge, sell, contract to sell, sell any option or contract
to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer
or dispose of, directly or indirectly, any Common Stock (or other securities) of the Company or enter into any swap, hedging or
other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Common Stock
(or other securities) of the Company held by Participant (other than those included in the registration) for a period specified
by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed one hundred eighty
(180) days following the effective date of any registration statement of the Company filed under the Securities Act (or such other
period as may be requested by the Company or the underwriters to accommodate regulatory restrictions on (i) the publication or
other distribution of research reports and (ii) analyst ‘recommendations and opinions, including, but not limited to, the
restrictions contained in NASD Rule 2711(f)(4) or NYSE Rule 472(f)(4), or any successor provisions or amendments thereto).

 

Participant agrees
to execute and deliver such other agreements as may be reasonably requested by the Company or the underwriter which are consistent
with the foregoing or which are necessary to give further effect thereto. In addition, if requested by the Company or the representative
of the underwriters of Common Stock (or other securities) of the Company, Participant shall provide, within ten (10) days of such
request, such information as may be required by the Company or such representative in connection with the completion of any public
offering of the Company’s securities pursuant to a registration statement filed under the Securities Act. The obligations
described in this Section 4 shall not apply to a registration relating solely to employee benefit plans on Form S-1 or Form S-8
or similar forms that may be promulgated in the future, or a registration relating solely to a Commission Rule 145 transaction
on Form S-4 or similar forms that may be promulgated in the future. The Company may impose stop-transfer instructions with respect
to the shares of Common Stock (or other securities) subject to the foregoing restriction until the end of said one hundred eighty
(180) day (or other) period. Participant agrees that any transferee of the Option or shares acquired pursuant to the Option shall
be bound by this Section 4.

 

5.            Method
of Payment. Payment of the aggregate Exercise Price shall be by any of the following, or a combination thereof, at the election
of the Participant:

 

(a)          cash;

 

(b)          check;

 

(c)          consideration
received by the Company under a formal cashless exercise program adopted by the Company in connection with the Plan; or

 

(d)          surrender
of other Shares which (i) if acquired either directly or indirectly from the Company, have been owned by Participant for at least
the period required to avoid a charge to the Company’s reported earnings, (ii) shall be valued at its Fair Market Value on
the

 

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date of exercise, and
(iii) must be owned free and clear of any liens, claims, encumbrances or security interests, if accepting such Shares, in the sole
discretion of the Administrator, shall not result in any adverse accounting consequences to the Company.

 

6.            Restrictions
on Exercise. This Option may not be exercised until such time as the Plan has been approved by the stockholders of the Company,
or if the issuance of such Shares upon such exercise or the method of payment of consideration for such shares would constitute
a violation of any Applicable Law.

 

7.            Non-Transferability
of Option. This Option may not be transferred in any manner otherwise than by will or by the laws of descent or distribution
and may be exercised during the lifetime of Participant only by Participant. The terms of the Plan and this Option Agreement shall
be binding upon the executors, administrators, heirs, successors and assigns of Participant.

 

8.            Term
of Option. This Option may be exercised only within the term set out in the Notice of Stock Option Grant, and may be exercised
during such term only in accordance with the Plan and the terms of this Option.

 

9.            Tax
Obligations.

 

(a)          Tax
Withholding. Participant agrees to make appropriate arrangements with the Company (or the Parent or Subsidiary employing or
retaining Participant) for the satisfaction of all federal, state, local and foreign income and employment tax withholding requirements
applicable to the Option exercise. Participant acknowledges and agrees that the Company may refuse to honor the exercise and refuse
to deliver the Shares if such withholding amounts are not delivered at the time of exercise.

 

(b)          Notice
of Disqualifying Disposition of ISO Shares. If the Option granted to Participant herein is an ISO, and if Participant sells
or otherwise disposes of any of the Shares acquired pursuant to the ISO on or before the later of (i) the date two (2) years after
the Date of Grant, or (ii) the date one (1) year after the date of exercise, Participant shall immediately notify the Company in
writing of such disposition. Participant agrees that Participant may be subject to income tax withholding by the Company on the
compensation income recognized by Participant.

 

(c)          Code
Section 409A. Under Code Section 409A, an Option that vests after December 31, 2004 that was granted with a per Share exercise
price that is determined by the Internal Revenue Service (the “IRS”) to be less than the Fair Market Value of a Share
on the date of grant (a “discount option”) may be considered “deferred compensation.” An Option that is
a “discount option” may result in (i) income recognition by Participant prior to the exercise of the Option, (ii) an
additional twenty percent (20%) federal income tax, and (iii) potential penalty and interest charges. The “discount option”
may also result in additional state income, penalty and interest tax to the Participant. Participant acknowledges that the Company
cannot and has not guaranteed that the IRS will agree that the per Share exercise price of this Option equals or exceeds the Fair
Market Value of a Share on the date of grant in a later examination. Participant agrees that if the IRS determines that the Option
was granted with a per Share exercise price that was less than the Fair Market Value of a Share on the date of grant, Participant
shall be solely responsible for Participant’s costs related to such a determination.

 

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10.          Entire
Agreement; Governing Law. The Plan is incorporated herein by reference. The Plan and this Option Agreement constitute the entire
agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements
of the Company and Participant with respect to the subject matter hereof, and may not be modified adversely to Participant’s
interest except by means of a writing signed by the Company and Participant. This Agreement is governed by the internal substantive
laws but not the choice of law rules of California.

 

11.          No
Guarantee of Continued Service. PARTICIPANT ACKNOWLEDGES AND AGREES THAT THE VESTING OF SHARES PURSUANT TO THE VESTING SCHEDULE
HEREOF IS EARNED ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (OR THE PARENT OR SUBSIDIARY EMPLOYING OR
RETAINING PARTICIPANT) AND NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS OPTION OR ACQUIRING SHARES HEREUNDER. PARTICIPANT
FURTHER ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT, THE TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH
HEREIN DO NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED ENGAGEMENT AS A SERVICE PROVIDER FOR THE VESTING PERIOD, FOR
ANY PERIOD, OR AT ALL, AND SHALL NOT INTERFERE IN ANY WAY WITH PARTICIPANT’S RIGHT OR THE RIGHT OF THE COMPANY (OR THE PARENT
OR SUBSIDIARY EMPLOYING OR RETAINING PARTICIPANT) TO TERMINATE PARTICIPANT’S RELATIONSHIP AS A SERVICE PROVIDER AT ANY TIME,
WITH OR WITHOUT CAUSE.

 

Participant acknowledges
receipt of a copy of the Plan and represents that he or she is familiar with the terms and provisions thereof, and hereby accepts
this Option subject to all of the terms and provisions thereof. Participant has reviewed the Plan and this Option in their entirety,
has had an opportunity to obtain the advice of counsel prior to executing this Option and fully understands all provisions of the
Option. Participant hereby agrees to accept as binding,

 

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conclusive and final all decisions or interpretations
of the Administrator upon any questions arising under the Plan or this Option. Participant further agrees to notify the Company
upon any change in the residence address indicated below.

 

	PARTICIPANT	 	RITTER PHARMACEUTICALS, INC.
	 	 	 
	/s/ Ira E. Ritter	 	/s/ Michael D. Step
	Signature	 	By
	 	 	 
	Ira E. Ritter	 	Michael D. Step
	Print Name	 	Print Name
	 	 	 
	c/o Ritter Pharmaceuticals, Inc.	 	Chief Executive Officer
	1801 Century Park East, No. 1820	 	Title
	Los Angeles, CA 90067	 	 

 

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EXHIBIT A

 

2008 STOCK PLAN

 

EXERCISE NOTICE

 

Ritter Pharmaceuticals, Inc.

1801 Century Park East, No. 1820

Los Angeles, California 90067

 

Attention: Chief Executive Officer

 

1.            Exercise
of Option. Effective as of today, ______________, _____, the undersigned (“Participant”) hereby elects to exercise
Participant’s option (the “Option”) to purchase ___________ shares of the Common Stock (the “Shares”)
of Ritter Pharmaceuticals, Inc. (the “Company”) under and pursuant to the 2008 Stock Plan (the “Plan”)
and the Stock Option Agreement dated _________________, _____ (the “Option Agreement”).

 

2.            Delivery
of Payment. Participant herewith delivers to the Company the full purchase price of the Shares, as set forth in the Option
Agreement, and any and all withholding taxes due in connection with the exercise of the Option.

 

3.            Representations
of Participant. Participant acknowledges that Participant has received, read and understood the Plan and the Option Agreement
and agrees to abide by and be bound by their terms and conditions.

 

4.            Rights
as Stockholder. Until the issuance of the Shares (as evidenced by the appropriate entry on the books of the Company or of a
duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall
exist with respect to the Common Stock subject to an Award, notwithstanding the exercise of the Option. The Shares shall be issued
to Participant as soon as practicable after the Option is exercised in accordance with the Option Agreement. No adjustment
shall be made for a dividend or other right for which the record date is prior to the date of issuance except as provided in Section
11 of the Plan.

 

5.            Company’s
Right of First Refusal. Before any Shares held by Participant or any transferee (either being sometimes referred to herein
as the “Holder”) may be sold or otherwise transferred (including transfer by gift or operation of law), the
Company or its assignee(s) shall have a right of first refusal to purchase the Shares on the terms and conditions set forth in
this Section 5 (the “Right of First Refusal”).

 

(a)          Notice
of Proposed Transfer. The Holder of the Shares shall deliver to the Company a written notice (the “Notice”) stating:
(i) the Holder’s bona fide intention to sell or otherwise transfer such Shares; (ii) the name of each proposed purchaser
or other transferee (“Proposed Transferee”); (iii) the number of Shares to be transferred to each Proposed Transferee;
and (iv) the bona fide cash price or other consideration for which the Holder proposes to transfer the Shares (the “Offered Price”), and the Holder shall offer the Shares at the Offered Price to the
Company or its assignee(s).

 

    	 

    	 

    

 

(b)          Exercise
of Right of First Refusal. At any time within thirty (30) days after receipt of the Notice, the Company and/or its assignee(s)
may, by giving written notice to the Holder, elect to purchase all, but not less than all, of the Shares proposed to be transferred
to any one or more of the Proposed Transferees, at the purchase price determined in accordance with subsection (c) below.

 

(c)          Purchase
Price. The purchase price (“Purchase Price”) for the Shares purchased by the Company or its assignee(s) under this
Section 5 shall be the Offered Price. If the Offered Price includes consideration other than cash, the cash equivalent value of
the non-cash consideration shall be determined by the Board of Directors of the Company in good faith.

 

(d)          Payment.
Payment of the Purchase Price shall be made, at the .option of the Company or its assignee(s), in cash (by check), by cancellation
of all or a portion of any outstanding indebtedness of the Holder to the Company (or, in the .case of repurchase by an assignee,
to the assignee), or by any combination thereof within thirty (30) days after receipt of the Notice or in the manner and at the
times set forth in the Notice.

 

(e)          Holder’s
Right to Transfer. If all of the Shares proposed in the Notice to be transferred to a given Proposed Transferee are not purchased
by the Company and/or its assignee(s) as provided in this Section 5, then the Holder may sell or otherwise transfer such
Shares to that Proposed Transferee at the Offered Price or at a higher price, provided that such sale or other transfer
is consummated within one hundred and twenty (120) days after the date of the Notice, that any such sale or other transfer is effected
in accordance with any applicable securities laws and that the Proposed Transferee agrees in writing that the provisions of this
Section 5 shall continue to apply to the Shares in the hands of such Proposed Transferee. If the Shares described in the Notice
are not transferred to the Proposed Transferee within such period, a new Notice shall be given to the Company, and the Company
and/or its assignees shall again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise
transferred.

 

(f)          Exception
for Certain Family Transfers. Anything to the contrary contained in this Section 5 notwithstanding, the transfer of any or
all of the Shares during Participant’s lifetime or on Participant’s death by will or intestacy to Participant’s
immediate family or a trust for the benefit of Participant’s immediate family shall be exempt from the provisions of this
Section 5. “Immediate Family” as used herein shall mean spouse, lineal descendant or antecedent, father, mother, brother
or sister. In such case, the transferee or other recipient shall receive and hold the Shares so transferred subject to the provisions
of this Section 5, and there shall be no further transfer of such Shares except in accordance with the terms of this Section 5.

 

(g)          Termination
of Right of First Refusal. The Right of First Refusal shall terminate as to any Shares upon the earlier of (i) the first sale
of Common Stock of the Company to the general public, or (ii) a Change in Control in which the successor corporation has equity
securities that are publicly traded.

 

6.            Tax
Consultation. Participant understands that Participant may suffer adverse tax consequences as a result of Participant’s
purchase or disposition of the Shares. Participant represents that Participant has consulted with any tax consultants Participant
deems advisable in connection with the purchase or disposition of the Shares and that Participant is not relying on the Company
for any tax advice.

 

    	 

    	 

    

 

7.            Restrictive
Legends and Stop-Transfer Orders.

 

(a)          Legends.
Participant understands and agrees that the Company shall cause the legends set forth below or legends substantially equivalent
thereto, to be placed upon any certificate(s) evidencing ownership of the Shares together with any other legends that may be required
by the Company or by state or federal securities laws:

 

THE SECURITIES REPRESENTED HEREBY
HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE “ACT”) AND MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED,
PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL SATISFACTORY TO THE ISSUER OF THESE
SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE THEREWITH.

 

THE SHARES REPRESENTED BY THIS
CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON TRANSFER AND A RIGHT OF FIRST REFUSAL HELD BY THE ISSUER OR ITS ASSIGNEE(S)
AS SET FORTH IN THE EXERCISE NOTICE BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED
AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH TRANSFER RESTRICTIONS AND RIGHT OF FIRST REFUSAL ARE BINDING ON TRANSFEREES OF THESE
SHARES.

 

THE SHARES REPRESENTED BY THIS
CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER FOR A PERIOD OF TIME FOLLOWING THE EFFECTIVE DATE OF THE UNDERWRITTEN PUBLIC
OFFERING OF THE COMPANY’S SECURITIES SET FORTH IN AN AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES
AND MAY NOT BE SOLD OR OTHERWISE DISPOSED OF BY THE HOLDER PRIOR TO THE EXPIRATION OF SUCH PERIOD WITHOUT THE CONSENT OF THE COMPANY
OR THE MANAGING UNDERWRITER.

 

(b)          Stop-Transfer
Notices. Participant agrees that, in order to ensure compliance with the restrictions referred to herein, the Company may issue
appropriate “stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers its own
securities, it may make appropriate notations to the same effect in its own records.

 

(c)          Refusal
to Transfer. The Company shall not be required (i) to transfer on its books any Shares that have been sold or otherwise transferred
in violation of any of the provisions of this Exercise Notice, or (ii)
to treat as owner of such Shares or to accord the right to vote or pay dividends to any purchaser or other transferee to
whom such Shares shall have been so transferred.

 

8.            Successors
and Assigns. The Company may assign any of its rights under this Exercise Notice to single or multiple assignees, and this
Exercise Notice shall inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer
herein set forth, this Exercise Notice shall be binding upon Participant and his or her heirs, executors, administrators, successors
and assigns.

 

    	 

    	 

    

 

9.            Interpretation.
Any dispute regarding the interpretation of this Exercise Notice shall be submitted by Participant or by the Company forthwith
to the Administrator which shall review such dispute at its next regular meeting. The resolution of such a dispute by the Administrator
shall be final and binding on all parties,

 

10.          Governing
Law; Severability. This Exercise Notice is governed by the internal substantive laws but not the choice of law rules, of California.
In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable
or void, this Exercise Notice shall continue in full force and effect.

 

11.          Entire
Agreement. The Plan and Option Agreement are incorporated herein by reference. This Exercise Notice, the Plan, the Option Agreement
and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof
and supersede in their entirety all prior undertakings and agreements of the Company and Participant with respect to the subject
matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the
Company and Participant.

 

	Submitted by:	 	Accepted by:
	 	 	 
	PARTICIPANT	 	RITTER PHARMACEUTICALS, INC.
	 	 	 
	 	 	 
	Signature	 	By
	 	 	 
	«Name»	 	 
	Print Name	 	Print Name
	 	 	 
	Address:	 	 
	 	 	Title
	«Address»	 	 
	 	 	Address:
	«City  State  Zip»	 	 
	 	 	1801 Century Park East, No. 1820
	 	 	Los Angeles, California 90067
	 	 	 
	 	 	 
	 	 	Date Received

 

    	 

    	 

    

 

EXHIBIT B

 

INVESTMENT REPRESENTATION STATEMENT

 

	PARTICIPANT	IRA E. RITTER
	 	 
	COMPANY	RITTER PHARMACEUTICALS, INC.
	 	 
	SECURITY	COMMON STOCK
	 	 
	AMOUNT	_______ SHARES

 

In connection with
the purchase of the above-listed Securities, the undersigned Participant represents to the Company the following:

 

(a)          Participant
is aware of the Company’s business affairs and financial condition and has acquired sufficient information about the Company
to reach an informed and knowledgeable decision to acquire the Securities. Participant is acquiring these Securities for investment
for Participant’s own account only and not with a view to, or for resale in connection with, any “distribution”
thereof within the meaning of the Securities Act of 1933, as amended (the “Securities Act”).

 

(b)          Participant
acknowledges and understands that the Securities constitute “restricted securities” under the Securities Act and have
not been registered under the Securities Act in reliance upon a specific exemption therefrom, which exemption depends upon, among
other things, the bona fide nature of Participant’s investment intent as expressed herein. In this connection, Participant
understands that, in the view of the Securities and Exchange Commission, the statutory basis for such exemption may be unavailable
if Participant’s representation was predicated solely upon a present intention to hold these Securities for the minimum capital
gains period specified under tax statutes, for a deferred sale, for or until an increase or decrease in the market price of the
Securities, or for a period of one year or any other fixed period in the future. Participant further understands that the Securities
must be held indefinitely unless they are subsequently registered under the Securities Act or an exemption from such registration
is available. Participant further acknowledges and understands that the Company is under no obligation to register the Securities.
Participant understands that the certificate evidencing the Securities shall be imprinted with any legend required under applicable
state securities laws.

 

(c)          Participant
is familiar with the provisions of Rule 701 and Rule 144, each promulgated under the Securities Act, which, in substance, permit
limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a non-public
offering subject to the satisfaction of certain conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the
time of the grant of the Option to Participant, the exercise shall be exempt from registration under the Securities Act. In the
event the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934,
ninety (90) days thereafter (or such longer period as any market stand-off agreement may require) the Securities exempt under Rule
701 may be resold, subject to the satisfaction of the applicable conditions specified by Rule 144, including in the case of affiliates
(1) the availability of certain public information about the Company, (2) the amount of Securities being sold during any three

 

    	 

    	 

    

 

(3) month period not
exceeding specified limitations, (3) the resale being made in an unsolicited “broker’s transaction”, transactions
directly with a “market maker” or “riskless principal transactions” (as those terms are defined under the
Securities Exchange Act of 1934) and (4) the timely filing of a Form 144, if applicable.

 

In the event that the
Company does not qualify under Rule 701 at the time of grant of the Option, then the Securities may be resold in certain limited
circumstances subject to the provisions of Rule 144, which may require (i) the availability of current public information about
the Company; (ii) the resale to occur more than a specified period after the purchase and full payment (within the meaning of Rule
144) for the Securities; and (iii) in the case of the sale of Securities by an affiliate, the satisfaction of the conditions set
forth in sections (2), (3) and (4) of the paragraph immediately above.

 

(d)          Participant
further understands that in the event all of the applicable requirements of Rule 701 or 144 are not satisfied, registration under
the Securities Act, compliance with Regulation A, or some other registration exemption shall be required; and that, notwithstanding
the fact that Rules 144 and 701 are not exclusive, the Staff of the Securities and Exchange Commission has expressed its opinion
that persons proposing to sell private placement securities other than in a registered offering and otherwise than pursuant to
Rules 144 or 701 shall have a substantial burden of proof in establishing that an exemption from registration is available for
such offers or sales; and that such persons and their respective brokers who participate in such transactions do so at their own
risk. Participant understands that no assurances can be given that any such other registration exemption shall be available in
such event.

 

	 	PARTICIPANT
	 	 
	 	 
	 	Signature
	 	 
	 	 
	 	Print Name
	 	 
	 	 
	 	DateExhibit 10.15

 

RITTER PHARMACEUTICALS, INC.

 

2008 STOCK PLAN

 

STOCK OPTION AGREEMENT

 

Unless otherwise defined
herein, the terms defined in the 2008 Stock Plan (the “Plan”) shall have the same defined meanings in this Stock Option
Agreement (the “Option Agreement”).

 

		I.	NOTICE OF STOCK OPTION GRANT

 

	 	Name:	Ira E. Ritter
	 	 	 
	 	Address:	c/o Ritter Pharmaceuticals, Inc.
	 	 	1801 Century Park East, No. 1820
	 	 	Los Angeles, California 90067

 

The undersigned Participant has been granted
an Option to purchase Common Stock of the Company, subject to the terms and conditions of the Plan and this Option Agreement, as
follows:

 

	 	Date of Grant:	December 2, 2014 
	 	 	 
	 	Vesting Commencement Date:	December 2, 2014
	 	 	 
	 	Exercise Price per Share:	$0.82
	 	 	 
	 	Total Number of Shares Granted:	150,000
	 	 	 
	 	Total Exercise Price:	$123,000
	 	 	 
	 	Type of Option:	NSO
	 	 	 
	 	Term/Expiration Date:	December 2, 2024, 5 p.m. Pacific time 
	 	 	 
	 	Vesting Schedule:	 

 

This Option shall be immediately
vested in full and exercisable, in whole or in part, as of the Date of Grant.

 

    	 

    	 

    

  

Termination Period:

 

This Option shall be exercisable
for three (3) months after Participant ceases to be a Service Provider, unless such termination is due to Participant’s death
or Disability, in which case this Option shall be exercisable for twelve (12) months after Participant ceases to be a Service Provider.
Notwithstanding the foregoing sentence, in no event may this Option be exercised after the Term/Expiration Date as provided above
and may be subject to earlier termination as provided in Section 11(c) of the Plan.

 

		II.	AGREEMENT

 

1.          Grant
of Option. The Administrator of the Company hereby grants to the Participant named in the Notice of Stock Option Grant in Part
I of this Agreement (“Participant”), an option (the “Option”) to purchase the number of Shares set forth
in the Notice of Stock Option Grant, at the exercise price per Share set forth in the Notice of Stock Option Grant (the “Exercise
Price”), and subject to the terms and conditions of the Plan, which is incorporated herein by reference. Subject to Section
19(c) of the Plan, in the event of a conflict between the terms and conditions of the Plan and this Option Agreement, the terms
and conditions of the Plan shall prevail.

 

If designated in the Notice
of Stock Option Grant as an Incentive Stock Option (“ISO”), this Option is intended to qualify as an Incentive
Stock Option as defined in Section 422 of the Code. Nevertheless, to the extent that it exceeds the $100,000 rule of Code Section
422(d), this Option shall be treated as a Nonstatutory Stock Option (“NSO”).

 

2.          Exercise
of Option.

 

(a)          Right
to Exercise. This Option shall be exercisable during its term in accordance with the Vesting Schedule set out in the Notice
of Stock Option Grant and with the applicable provisions of the Plan and this Option Agreement.

 

(b)          Method
of Exercise. This Option shall be exercisable by delivery of an exercise notice in the form attached as Exhibit A (the
“Exercise Notice”) or in a manner and pursuant to such procedures as the Administrator may determine, which shall state
the election to exercise the Option, the number of Shares with respect to which the Option is being exercised, and such other representations
and agreements as may be required by the Company. The Exercise Notice shall be accompanied by payment of the aggregate Exercise
Price as to all Exercised Shares, together with any applicable tax withholding. This Option shall be deemed to be exercised upon
receipt by the Company of such fully executed Exercise Notice accompanied by the aggregate Exercise Price, together with any applicable
tax withholding.

 

No Shares shall be issued
pursuant to the exercise of an Option unless such issuance and such exercise comply with Applicable Laws. Assuming such compliance,
for income tax purposes the Shares shall be considered transferred to Participant on the date on which the Option is exercised
with respect to such Shares.

 

3.          Participant’s
Representations. In the event the Shares have not been registered under the Securities Act of 1933, as amended, at the time
this Option is exercised, Participant

 

    	-2-

    	 

    

  

shall, if required by the
Company, concurrently with the exercise of all or any portion of this Option, deliver to the Company his or her Investment Representation
Statement in the form attached hereto as Exhibit B.

 

4.          Lock-Up
Period. Participant hereby agrees that Participant shall not offer, pledge, sell, contract to sell, sell any option or contract
to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer
or dispose of, directly or indirectly, any Common Stock (or other securities) of the Company or enter into any swap, hedging or
other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Common Stock
(or other securities) of the Company held by Participant (other than those included in the registration) for a period specified
by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed one hundred eighty
(180) days following the effective date of any registration statement of the Company filed under the Securities Act (or such other
period as may be requested by the Company or the underwriters to accommodate regulatory restrictions on (i) the publication or
other distribution of research reports and (ii) analyst ‘recommendations and opinions, including, but not limited to, the
restrictions contained in NASD Rule 2711(f)(4) or NYSE Rule 472(f)(4), or any successor provisions or amendments thereto).

 

Participant agrees to
execute and deliver such other agreements as may be reasonably requested by the Company or the underwriter which are consistent
with the foregoing or which are necessary to give further effect thereto. In addition, if requested by the Company or the representative
of the underwriters of Common Stock (or other securities) of the Company, Participant shall provide, within ten (10) days of such
request, such information as may be required by the Company or such representative in connection with the completion of any public
offering of the Company’s securities pursuant to a registration statement filed under the Securities Act. The obligations
described in this Section 4 shall not apply to a registration relating solely to employee benefit plans on Form S-1 or Form S-8
or similar forms that may be promulgated in the future, or a registration relating solely to a Commission Rule 145 transaction
on Form S-4 or similar forms that may be promulgated in the future. The Company may impose stop-transfer instructions with respect
to the shares of Common Stock (or other securities) subject to the foregoing restriction until the end of said one hundred eighty
(180) day (or other) period. Participant agrees that any transferee of the Option or shares acquired pursuant to the Option shall
be bound by this Section 4.

 

5.          Method
of Payment. Payment of the aggregate Exercise Price shall be by any of the following, or a combination thereof, at the election
of the Participant:

 

(a)          cash;

 

(b)          check;

 

(c)          consideration
received by the Company under a formal cashless exercise program adopted by the Company in connection with the Plan; or

 

(d)          surrender
of other Shares which (i) if acquired either directly or indirectly from the Company, have been owned by Participant for at least
the period required to avoid a charge to the Company’s reported earnings, (ii) shall be valued at its Fair Market Value on
the

 

    	-3-

    	 

    

  

date of exercise, and (iii)
must be owned free and clear of any liens, claims, encumbrances or security interests, if accepting such Shares, in the sole discretion
of the Administrator, shall not result in any adverse accounting consequences to the Company.

 

6.          Restrictions
on Exercise. This Option may not be exercised until such time as the Plan has been approved by the stockholders of the Company,
or if the issuance of such Shares upon such exercise or the method of payment of consideration for such shares would constitute
a violation of any Applicable Law.

 

7.          Non-Transferability
of Option. This Option may not be transferred in any manner otherwise than by will or by the laws of descent or distribution
and may be exercised during the lifetime of Participant only by Participant. The terms of the Plan and this Option Agreement shall
be binding upon the executors, administrators, heirs, successors and assigns of Participant.

 

8.          Term
of Option. This Option may be exercised only within the term set out in the Notice of Stock Option Grant, and may be exercised
during such term only in accordance with the Plan and the terms of this Option.

 

9.          Tax
Obligations.

 

(a)          Tax
Withholding. Participant agrees to make appropriate arrangements with the Company (or the Parent or Subsidiary employing or
retaining Participant) for the satisfaction of all federal, state, local and foreign income and employment tax withholding requirements
applicable to the Option exercise. Participant acknowledges and agrees that the Company may refuse to honor the exercise and refuse
to deliver the Shares if such withholding amounts are not delivered at the time of exercise.

 

(b)          Notice
of Disqualifying Disposition of ISO Shares. If the Option granted to Participant herein is an ISO, and if Participant sells
or otherwise disposes of any of the Shares acquired pursuant to the ISO on or before the later of (i) the date two (2) years after
the Date of Grant, or (ii) the date one (1) year after the date of exercise, Participant shall immediately notify the Company in
writing of such disposition. Participant agrees that Participant may be subject to income tax withholding by the Company on the
compensation income recognized by Participant.

 

(c)          Code
Section 409A. Under Code Section 409A, an Option that vests after December 31, 2004 that was granted with a per Share exercise
price that is determined by the Internal Revenue Service (the “IRS”) to be less than the Fair Market Value of a Share
on the date of grant (a “discount option”) may be considered “deferred compensation.” An Option that is
a “discount option” may result in (i) income recognition by Participant prior to the exercise of the Option, (ii) an
additional twenty percent (20%) federal income tax, and (iii) potential penalty and interest charges. The “discount option”
may also result in additional state income, penalty and interest tax to the Participant. Participant acknowledges that the Company
cannot and has not guaranteed that the IRS will agree that the per Share exercise price of this Option equals or exceeds the Fair
Market Value of a Share on the date of grant in a later examination. Participant agrees that if the IRS determines that the Option
was granted with a per Share exercise price that was less than the Fair Market Value of a Share on the date of grant, Participant
shall be solely responsible for Participant’s costs related to such a determination.

 

    	-4-

    	 

    

  

10.         Entire
Agreement; Governing Law. The Plan is incorporated herein by reference. The Plan and this Option Agreement constitute the entire
agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements
of the Company and Participant with respect to the subject matter hereof, and may not be modified adversely to Participant’s
interest except by means of a writing signed by the Company and Participant. This Agreement is governed by the internal substantive
laws but not the choice of law rules of California.

 

11.         No
Guarantee of Continued Service. PARTICIPANT ACKNOWLEDGES AND AGREES THAT THE VESTING OF SHARES PURSUANT TO THE VESTING SCHEDULE
HEREOF IS EARNED ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (OR THE PARENT OR SUBSIDIARY EMPLOYING OR
RETAINING PARTICIPANT) AND NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS OPTION OR ACQUIRING SHARES HEREUNDER. PARTICIPANT
FURTHER ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT, THE TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH
HEREIN DO NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED ENGAGEMENT AS A SERVICE PROVIDER FOR THE VESTING PERIOD, FOR
ANY PERIOD, OR AT ALL, AND SHALL NOT INTERFERE IN ANY WAY WITH PARTICIPANT’S RIGHT OR THE RIGHT OF THE COMPANY (OR THE PARENT
OR SUBSIDIARY EMPLOYING OR RETAINING PARTICIPANT) TO TERMINATE PARTICIPANT’S RELATIONSHIP AS A SERVICE PROVIDER AT ANY TIME,
WITH OR WITHOUT CAUSE.

 

Participant acknowledges
receipt of a copy of the Plan and represents that he or she is familiar with the terms and provisions thereof, and hereby accepts
this Option subject to all of the terms and provisions thereof. Participant has reviewed the Plan and this Option in their entirety,
has had an opportunity to obtain the advice of counsel prior to executing this Option and fully understands all provisions of the
Option. Participant hereby agrees to accept as binding,

 

    	-5-

    	 

    

  

conclusive and final all decisions or interpretations
of the Administrator upon any questions arising under the Plan or this Option. Participant further agrees to notify the Company
upon any change in the residence address indicated below.

 

	PARTICIPANT	 	RITTER PHARMACEUTICALS, INC.
	 	 	 
	/s/ Ira E. Ritter 	 	/s/ Michael D. Step 
	Signature	 	By
	 	 	 
	Ira E. Ritter	 	 	Michael D. Step
	Print Name	 	Print Name
	 	 	 
	c/o Ritter Pharmaceuticals, Inc.	 	Chief Executive Officer	 
	1801 Century Park East, No. 1820	 	Title
	Los Angeles, CA 90067

	 	 
	 	 	 	 	 

 

    	-6-

    	 

    

  

EXHIBIT A

 

2008 STOCK PLAN

 

EXERCISE NOTICE

Ritter Pharmaceuticals, Inc.

1801 Century Park East, No. 1820

Los Angeles, California 90067

 

Attention: Chief Executive Officer

 

1.          Exercise
of Option. Effective as of today, ______________, _____, the undersigned (“Participant”) hereby elects to exercise
Participant’s option (the “Option”) to purchase ___________ shares of the Common Stock (the “Shares”)
of Ritter Pharmaceuticals, Inc. (the “Company”) under and pursuant to the 2008 Stock Plan (the “Plan”)
and the Stock Option Agreement dated _________________, _____ (the “Option Agreement”).

 

2.          Delivery
of Payment. Participant herewith delivers to the Company the full purchase price of the Shares, as set forth in the Option
Agreement, and any and all withholding taxes due in connection with the exercise of the Option.

 

3.          Representations
of Participant. Participant acknowledges that Participant has received, read and understood the Plan and the Option Agreement
and agrees to abide by and be bound by their terms and conditions.

 

4.          Rights
as Stockholder. Until the issuance of the Shares (as evidenced by the appropriate entry on the books of the Company or of a
duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall
exist with respect to the Common Stock subject to an Award, notwithstanding the exercise of the Option. The Shares shall be issued
to Participant as soon as practicable after the Option is exercised in accordance with the Option Agreement. No adjustment
shall be made for a dividend or other right for which the record date is prior to the date of issuance except as provided in Section
11 of the Plan.

 

5.          Company’s
Right of First Refusal. Before any Shares held by Participant or any transferee (either being sometimes referred to herein
as the “Holder”) may be sold or otherwise transferred (including transfer by gift or operation of law), the
Company or its assignee(s) shall have a right of first refusal to purchase the Shares on the terms and conditions set forth in
this Section 5 (the “Right of First Refusal”).

 

(a)          Notice
of Proposed Transfer. The Holder of the Shares shall deliver to the Company a written notice (the “Notice”) stating:
(i) the Holder’s bona fide intention to sell or otherwise transfer such Shares; (ii) the name of each proposed purchaser
or other transferee (“Proposed Transferee”); (iii) the number of Shares to be transferred to each Proposed Transferee;
and (iv) the bona fide cash price or other consideration for which the Holder proposes to transfer the
Shares (the “Offered Price”), and the Holder shall offer the Shares at the Offered Price to the Company or its assignee(s).

 

    	 

    	 

    

  

(b)          Exercise
of Right of First Refusal. At any time within thirty (30) days after receipt of the Notice, the Company and/or its assignee(s)
may, by giving written notice to the Holder, elect to purchase all, but not less than all, of the Shares proposed to be transferred
to any one or more of the Proposed Transferees, at the purchase price determined in accordance with subsection (c) below.

 

(c)          Purchase
Price. The purchase price (“Purchase Price”) for the Shares purchased by the Company or its assignee(s) under this
Section 5 shall be the Offered Price. If the Offered Price includes consideration other than cash, the cash equivalent value of
the non-cash consideration shall be determined by the Board of Directors of the Company in good faith.

 

(d)          Payment.
Payment of the Purchase Price shall be made, at the .option of the Company or its assignee(s), in cash (by check), by cancellation
of all or a portion of any outstanding indebtedness of the Holder to the Company (or, in the .case of repurchase by an assignee,
to the assignee), or by any combination thereof within thirty (30) days after receipt of the Notice or in the manner and at the
times set forth in the Notice.

 

(e)          Holder’s
Right to Transfer. If all of the Shares proposed in the Notice to be transferred to a given Proposed Transferee are not purchased
by the Company and/or its assignee(s) as provided in this Section 5, then the Holder may sell or otherwise transfer such
Shares to that Proposed Transferee at the Offered Price or at a higher price, provided that such sale or other transfer
is consummated within one hundred and twenty (120) days after the date of the Notice, that any such sale or other transfer is effected
in accordance with any applicable securities laws and that the Proposed Transferee agrees in writing that the provisions of this
Section 5 shall continue to apply to the Shares in the hands of such Proposed Transferee. If the Shares described in the Notice
are not transferred to the Proposed Transferee within such period, a new Notice shall be given to the Company, and the Company
and/or its assignees shall again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise
transferred.

 

(f)          Exception
for Certain Family Transfers. Anything to the contrary contained in this Section 5 notwithstanding, the transfer of any or
all of the Shares during Participant’s lifetime or on Participant’s death by will or intestacy to Participant’s
immediate family or a trust for the benefit of Participant’s immediate family shall be exempt from the provisions of this
Section 5. “Immediate Family” as used herein shall mean spouse, lineal descendant or antecedent, father, mother, brother
or sister. In such case, the transferee or other recipient shall receive and hold the Shares so transferred subject to the provisions
of this Section 5, and there shall be no further transfer of such Shares except in accordance with the terms of this Section 5.

 

(g)          Termination
of Right of First Refusal. The Right of First Refusal shall terminate as to any Shares upon the earlier of (i) the first sale
of Common Stock of the Company to the general public, or (ii) a Change in Control in which the successor corporation has equity
securities that are publicly traded.

 

6.          Tax
Consultation. Participant understands that Participant may suffer adverse tax consequences as a result of Participant’s
purchase or disposition of the Shares. Participant represents that Participant has consulted with any tax consultants Participant
deems advisable in connection with the purchase or disposition of the Shares and that Participant is not relying on the Company
for any tax advice.

 

    	 

    	 

    

  

7.          Restrictive
Legends and Stop-Transfer Orders.

 

(a)          Legends.
Participant understands and agrees that the Company shall cause the legends set forth below or legends substantially equivalent
thereto, to be placed upon any certificate(s) evidencing ownership of the Shares together with any other legends that may be required
by the Company or by state or federal securities laws:

 

THE SECURITIES REPRESENTED HEREBY HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE “ACT”) AND MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED,
PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL SATISFACTORY TO THE ISSUER OF THESE
SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE THEREWITH.

 

THE SHARES REPRESENTED BY THIS CERTIFICATE
ARE SUBJECT TO CERTAIN RESTRICTIONS ON TRANSFER AND A RIGHT OF FIRST REFUSAL HELD BY THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH
IN THE EXERCISE NOTICE BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL
OFFICE OF THE ISSUER. SUCH TRANSFER RESTRICTIONS AND RIGHT OF FIRST REFUSAL ARE BINDING ON TRANSFEREES OF THESE SHARES.

 

THE SHARES REPRESENTED BY THIS CERTIFICATE
ARE SUBJECT TO RESTRICTIONS ON TRANSFER FOR A PERIOD OF TIME FOLLOWING THE EFFECTIVE DATE OF THE UNDERWRITTEN PUBLIC OFFERING OF
THE COMPANY’S SECURITIES SET FORTH IN AN AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES AND MAY NOT
BE SOLD OR OTHERWISE DISPOSED OF BY THE HOLDER PRIOR TO THE EXPIRATION OF SUCH PERIOD WITHOUT THE CONSENT OF THE COMPANY OR THE
MANAGING UNDERWRITER.

 

(b)          Stop-Transfer
Notices. Participant agrees that, in order to ensure compliance with the restrictions referred to herein, the Company may issue
appropriate “stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers its own
securities, it may make appropriate notations to the same effect in its own records.

 

(c)          Refusal
to Transfer. The Company shall not be required (i) to transfer on its books any Shares that have been sold or otherwise transferred
in violation of any of the provisions of this Exercise Notice, or (ii)
to treat as owner of such Shares or to accord the right to vote or pay dividends to any purchaser or other transferee to
whom such Shares shall have been so transferred.

 

8.          Successors
and Assigns. The Company may assign any of its rights under this Exercise Notice to single or multiple assignees, and this
Exercise Notice shall inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer
herein set forth, this Exercise Notice shall be binding upon Participant and his or her heirs, executors, administrators, successors
and assigns.

 

    	 

    	 

    

  

9.          Interpretation.
Any dispute regarding the interpretation of this Exercise Notice shall be submitted by Participant or by the Company forthwith
to the Administrator which shall review such dispute at its next regular meeting. The resolution of such a dispute by the Administrator
shall be final and binding on all parties,

 

10.         Governing
Law; Severability. This Exercise Notice is governed by the internal substantive laws but not the choice of law rules, of California.
In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable
or void, this Exercise Notice shall continue in full force and effect.

 

11.         Entire
Agreement. The Plan and Option Agreement are incorporated herein by reference. This Exercise Notice, the Plan, the Option Agreement
and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof
and supersede in their entirety all prior undertakings and agreements of the Company and Participant with respect to the subject
matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the
Company and Participant.

 

	Submitted by:	 	Accepted by:
	 	 	 
	PARTICIPANT	 	RITTER PHARMACEUTICALS, INC.
	 	 	 
	 	 	 
	Signature	 	By
	 	 	 
	«Name»	 	 
	Print Name	 	Print Name
	 	 	 
	Address:	 	 
	 	 	Title
	«Address»	 	
	 	 	Address:
	«City  State  Zip»	 	
	 	 	1801 Century Park East, No. 1820
	 	 	Los Angeles, California 90067
	 	 	 
	 	 	 
	 	 	Date Received

 

    	 

    	 

    

  

EXHIBIT B

 

INVESTMENT REPRESENTATION STATEMENT

 

	PARTICIPANT	IRA E. RITTER
	 	 
	COMPANY	RITTER PHARMACEUTICALS, INC.
	 	 
	SECURITY	COMMON STOCK
	 	 
	AMOUNT	_______ SHARES

 

In connection with the
purchase of the above-listed Securities, the undersigned Participant represents to the Company the following:

 

(a)          Participant
is aware of the Company’s business affairs and financial condition and has acquired sufficient information about the Company
to reach an informed and knowledgeable decision to acquire the Securities. Participant is acquiring these Securities for investment
for Participant’s own account only and not with a view to, or for resale in connection with, any “distribution”
thereof within the meaning of the Securities Act of 1933, as amended (the “Securities Act”).

 

(b)          Participant
acknowledges and understands that the Securities constitute “restricted securities” under the Securities Act and have
not been registered under the Securities Act in reliance upon a specific exemption therefrom, which exemption depends upon, among
other things, the bona fide nature of Participant’s investment intent as expressed herein. In this connection, Participant
understands that, in the view of the Securities and Exchange Commission, the statutory basis for such exemption may be unavailable
if Participant’s representation was predicated solely upon a present intention to hold these Securities for the minimum capital
gains period specified under tax statutes, for a deferred sale, for or until an increase or decrease in the market price of the
Securities, or for a period of one year or any other fixed period in the future. Participant further understands that the Securities
must be held indefinitely unless they are subsequently registered under the Securities Act or an exemption from such registration
is available. Participant further acknowledges and understands that the Company is under no obligation to register the Securities.
Participant understands that the certificate evidencing the Securities shall be imprinted with any legend required under applicable
state securities laws.

 

(c)          Participant
is familiar with the provisions of Rule 701 and Rule 144, each promulgated under the Securities Act, which, in substance, permit
limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a non-public
offering subject to the satisfaction of certain conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the
time of the grant of the Option to Participant, the exercise shall be exempt from registration under the Securities Act. In the
event the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934,
ninety (90) days thereafter (or such longer period as any market stand-off agreement may require) the Securities exempt under Rule
701 may be resold, subject to the satisfaction of the applicable conditions specified by Rule 144, including in the case of affiliates
(1) the availability of certain public information about the Company, (2) the amount of Securities being sold during any three

 

    	 

    	 

    

  

(3) month period not exceeding
specified limitations, (3) the resale being made in an unsolicited “broker’s transaction”, transactions directly
with a “market maker” or “riskless principal transactions” (as those terms are defined under the Securities
Exchange Act of 1934) and (4) the timely filing of a Form 144, if applicable.

 

In the event that the Company
does not qualify under Rule 701 at the time of grant of the Option, then the Securities may be resold in certain limited circumstances
subject to the provisions of Rule 144, which may require (i) the availability of current public information about the Company;
(ii) the resale to occur more than a specified period after the purchase and full payment (within the meaning of Rule 144) for
the Securities; and (iii) in the case of the sale of Securities by an affiliate, the satisfaction of the conditions set forth in
sections (2), (3) and (4) of the paragraph immediately above.

 

(d)          Participant
further understands that in the event all of the applicable requirements of Rule 701 or 144 are not satisfied, registration under
the Securities Act, compliance with Regulation A, or some other registration exemption shall be required; and that, notwithstanding
the fact that Rules 144 and 701 are not exclusive, the Staff of the Securities and Exchange Commission has expressed its opinion
that persons proposing to sell private placement securities other than in a registered offering and otherwise than pursuant to
Rules 144 or 701 shall have a substantial burden of proof in establishing that an exemption from registration is available for
such offers or sales; and that such persons and their respective brokers who participate in such transactions do so at their own
risk. Participant understands that no assurances can be given that any such other registration exemption shall be available in
such event.

 

	 	PARTICIPANT
	 	 
	 	 
	 	Signature
	 	 
	 	 
	 	Print Name
	 	 
	 	 
	 	Date

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