Document:

Exhibit
10.2

 

THIS
NOTE AND THE SECURITIES ISSUABLE UPON THE CONVERSION HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED
(THE “ACT”), OR UNDER THE SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES MAY NOT BE OFFERED, SOLD OR OTHERWISE
TRANSFERRED, PLEDGED OR HYPOTHECATED EXCEPT AS PERMITTED UNDER THE ACT AND APPLICABLE STATE SECURITIES LAWS PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT OR AN EXEMPTION THEREFROM. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL REASONABLY
SATISFACTORY TO THE ISSUER THAT SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION OTHERWISE COMPLIES WITH THE ACT AND ANY
APPLICABLE STATE SECURITIES LAWS.

 

BONE
BIOLOGICS CORPORATION

SECURED
CONVERTIBLE PROMISSORY NOTE

 

	$700,000	August
    18, 2017

 

FOR
VALUE RECEIVED, Bone Biologics Corporation, a Delaware Corporation (the “Company”) promises to pay to
Hankey Capital, LLC (“Holder”), in lawful money of the United States of America, the principal amount
of Seven Hundred Thousand dollars ($700,000) (“Principal Amount”), upon the terms and subject to the
conditions set forth herein (this “Note”). The following is a statement of the rights of Holder and
the conditions to which this Note is subject, and to which Holder, by the acceptance of this Note, agrees:

 

1.       Maturity
Date; Prepayment. If not sooner paid or converted pursuant to the terms hereof, the outstanding Principal Amount plus all
accrued and unpaid interest thereon shall be due and payable on December 31, 2017 (“Maturity Date”).
This Note may be prepaid at any time provided that the Company pays all accrued interest thereon.

 

2.      Interest.

 

(a)       Simple
Interest. Interest shall accrue on the unpaid Principal Amount from the date hereof until the date this Note is paid in full
or converted at the rate of eight and one/half percent (81⁄2%) simple interest per month (“Interest Rate”).
All accrued interest shall be due and payable in full upon maturity or prepayment of this Note.

 

3.      Conversion.

 

(a)       Mandatory
Conversion Upon Qualified Financing. In the event of the sale or series of sales of securities to non-current stockholders,
other than an equity purchase (the “MTF Equity Purchase”) issued concurrently herewith to The Musculoskeletal
Transplant Foundation, by the Company after the date hereof which results in gross proceeds to the Company in the aggregate amount
of at least five million dollars ($5,000,000) (a “Qualified Financing”), the outstanding Principal Amount
of this Note together with any accrued but unpaid interest shall be converted into the same securities issued in the Qualified
Financing (the “QF Securities”) at a conversion price which will be the purchase price per share or
per unit based on the actual pre-money valuation used in determining the purchase price for the QF Securities. The Company shall
provide notice to Holder at least seven (7) days prior to the closing of a Qualified Financing as to the number of shares or units
Holder would receive. In conjunction with the conversion, Holder shall become a party to and shall execute all definitive agreements
subject to the Qualified Financing (as defined below) (the “Qualified Financing Agreements”).

 

(b)       Optional
Conversion Prior to Qualified Financing. At any time prior to the Maturity Date or a conversion pursuant to Section 3(a),
at the option of the Holder, the outstanding Principal Amount of this Note and accrued interest may be converted into shares of
the Common Stock of the Company at a conversion price of $1.00 per share.

 

    	 

    	 

    

 

(c)       Other
Mandatory Conversion. If this Subordinated Note has not been paid or converted prior to the Maturity Date, the outstanding
Principal Amount of this Subordinated Note and accrued interest shall be automatically converted into shares of Common Stock of
the Company at a conversion price of $1.00 per share.

 

(d)       QF
Securities. In the case of a conversion pursuant to Section 3(a), if the QF Securities are senior securities, including Preferred
Stock, then the number of shares of such senior securities to be received shall be calculated based on the conversion price of
the senior securities.

 

(e)       Conversion
Procedure. Upon conversion, Holder shall surrender this Note (or a notice to the effect that the original Note has been lost,
stolen or destroyed and an agreement acceptable to the Company whereby the holder agrees to indemnify the Company from any loss
incurred by it in connection with this Note). If the conversion is pursuant to Section 3(a), Holder shall then execute and deliver
to the Company the Qualified Financing Agreements. Upon conversion of this Note in full, the Company shall be forever released
from all its obligations and liabilities under this Note and this Note shall be deemed of no further force or effect, whether
or not the original of this Note has been delivered to the Company for cancellation.

 

4.      Security
Interest. The Company hereby grants to Holder a first priority security interest in all of the assets of the Company, it being
understood that the existing Security Agreement between the Company and Holder (the “Security Agreement”) with
respect to the secured convertible notes previously issued to Holder shall apply to this Note.

 

5.      Events
of Default. The occurrence of any of the following shall constitute an “Event of Default” under
this Note:

 

(a)       Failure
to Pay. The Company shall fail to pay when due the principal amount and unpaid accrued interest due under this Note on the
Maturity Date (provided, Holder must first give written notice to the Company of its failure to pay and the Company shall have
failed to cure such payment obligation within seven (7) business days of the date the notice was given); or

 

(b)       Voluntary
Bankruptcy or Insolvency Proceedings. The Company shall (i) apply for or consent to the appointment of a receiver, trustee,
liquidator or custodian of itself or of all or a substantial part of its property, (ii) admit in writing its inability to pay
its debts generally as they mature, (iii) make a general assignment for the benefit of its or any of its creditors, (iv) be dissolved
or liquidated, (v) commence a voluntary case or other proceeding seeking liquidation, reorganization or other relief with respect
to itself or its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or consent to any such
relief or to the appointment of or taking possession of its property by any official in an involuntary case or other proceeding
commenced against it, or (vi) take any action for the purpose of effecting any of the foregoing; or

 

(c)       Involuntary
Bankruptcy or Insolvency Proceedings. Proceedings for the appointment of a receiver, trustee, liquidator or custodian of the
Company, or of all or a substantial part of the property thereof, or an involuntary case or other proceedings seeking liquidation,
reorganization or other relief with respect to the Company or any of its Subsidiaries, if any, or the debts thereof under any
bankruptcy, insolvency or other similar law now or hereafter in effect shall be commenced and an order for relief entered or such
proceeding shall not be dismissed or discharged within 60 days of commencement.

 

    	 	 2	 

    	 	 	 

    

 

6.       Rights
of Holder upon Default. Upon the occurrence of any Event of Default and at any time thereafter during the continuance of such
Event of Default, Holder may by written notice to the Company, declare all outstanding obligations payable by the Company hereunder
to be immediately due and payable without presentment, demand, protest or any other notice of any kind, all of which are hereby
expressly waived, anything contained herein to the contrary notwithstanding, and, enforce its rights as secured party under the
Uniform Commercial Code applicable to the Company and under the Securities Agreement.

 

7.       Representations
and Warranties of Holder. Holder represents and warrants to the Company upon the acquisition of the Note as follows:

 

(a)       Binding
Obligation. Holder has full legal capacity, power and authority to execute and deliver this Agreement and to perform its obligations
hereunder. This Note constitutes a valid and binding obligation of Holder, enforceable in accordance with its terms, except as
limited by bankruptcy, insolvency or other laws of general application relating to or affecting the enforcement of creditors’
rights generally and general principles of equity.

 

(b)       Securities
Law Compliance. Holder has been advised that the issuance of this Note and the securities into which it may be converted have
not been registered under the Securities Act of 1933, as amended (the “Securities Act”), or any state securities
laws and, therefore, cannot be sold unless such sale or transfer is registered under the Securities Act and applicable state securities
laws or unless an exemption from such registration requirements is available. Holder is aware that the Company is under no obligation
to effect any such registration with respect to the Note or the securities into which it may be converted or to file for or comply
with any exemption from registration. Holder has not been formed solely for the purpose of making this loan and is investing in
the Note for its own account for investment, not as a nominee or agent, and not with a view to, or for resale in connection with,
the distribution thereof, and Holder has no present intention of selling, granting any participation in, or otherwise distributing
the same. Holder has such knowledge and experience in financial and business matters that Holder is capable of evaluating the
merits and risks of such investment, is able to incur a complete loss of such investment without impairing Holder’s financial
condition and is able to bear the economic risk of such investment for an indefinite period of time. Holder is an accredited investor
as such term is defined in Rule 501 of Regulation D under the Securities Act and shall submit to the Company such further assurances
of such status as may be reasonably requested by the Company.

 

(c)       Access
to Information. Holder acknowledges that the Company has given Holder access to the corporate records and accounts of the
Company and has made its officers and representatives available for interview by Holder, and has furnished Holder with all documents
and other information required for Holder to make an informed decision with respect to the purchase of the Note.

 

8.      Representations
and Warranties of Company. The Company represents and warrants to the Holder upon the acquisition of the Note as follows:

 

(a)       Binding
Obligation. The Company has full legal capacity, power and authority to execute and deliver this Agreement and to perform
its obligations hereunder. This Note constitutes a valid and binding obligation of the Company, enforceable in accordance with
its terms, except as limited by bankruptcy, insolvency or other laws of general application relating to or affecting the enforcement
of creditor’s rights generally and general principles of equity.

 

(b)       Insolvency.
No step has been taken to initiate any process for bankruptcy or other insolvency process of the Company, including (without limitation)
an appointment of an insolvency officer, an arrangement made with creditors either formally under a court or insolvency process
or informally or an enforcement of any third party security over any of the assets or undertaking of the Company.

 

    	 	 3	 

    	 	 	 

    

 

(c)       Organization
and Qualification. The Company is duly organized, validly existing and in good standing under the laws of the State of Delaware,
with the requisite power and authority to own and use its properties and assets and to carry on its business as currently conducted.
The Company is not in violation of any of the provisions of its governing documents.

 

(d)       Issuance
of Investor Securities Upon Conversion. The potential issuance of the investor securities upon proper conversion of the Note
is duly authorized and is free from all pre-emptive rights, liens and charges with respect to the issuance thereof.

 

(e)       No
Conflicts. The execution, delivery and performance of the Note by the Company and the consummation by the Company of the transactions
contemplated herein do not and will not: (i) conflict with or violate any provision of the Company’s charter documents,
or (ii) conflict with, or constitute a default (or an event that with notice or lapse of time or both would become a default)
under, or give to others any rights of termination, amendment, acceleration or cancellation (with or without notice, lapse of
time or both) of, any agreement, credit facility, debt or other instrument (evidencing a Company debt or otherwise) or other understanding
to which the Company is a party or by which any property or asset of the Company is bound or affected, except such as could not,
individually or in the aggregate, have or result in a material adverse effect on the Company.

 

9.       Piggyback
Registration Statement. The Company hereby grants to Holder the right to include any common shares issued or issuable hereunder
in any registration statement filed by the Company with the Securities and Exchange Commission allowing the inclusion of such
shares subject to customary cutback provisions and giving priority to the Company and other holders of the Company securities
who have priority rights.

 

10.     Miscellaneous.

 

(a)       Successors
and Assigns; Certificate Representing this Note or Securities Issuable on Conversion Hereof; Transfer of this Note or Securities
Issuable on Conversion Hereof.

 

(i)       Subject
to the restrictions on transfer described in Section 8(b), the rights and obligations of the Company and Holder shall be binding
upon and benefit the successors, assigns, heirs, administrators and transferees of the parties.

 

(ii)       Each
certificate representing this Note or the securities issuable upon conversion hereof shall bear a legend as to the applicable
restrictions on transferability in order to assure compliance with the Securities Act and applicable state securities laws. The
Company may issue stop transfer instructions to its transfer agent in connection with such restrictions.

 

(iii)       Holder
shall only be entitled to offer, sell or otherwise distribute this Note or the securities into which it may be converted with
the prior written consent of the Company, which may be given or withheld in the Company’s sole discretion. If an offer,
sale or other distribution is approved by the Company, Holder must provide the Company with a written opinion of Holder’s
counsel, or other evidence reasonably satisfactory to the Company, to the effect that such offer, sale or other distribution may
be effected without registration or qualification (under any federal or state law then in effect). Upon receiving such reasonably
satisfactory opinion, if so requested, or other evidence, the Company, as promptly as practicable, shall issue the appropriate
replacement note or securities. The Note thus transferred and each certificate representing the securities thus transferred shall
bear a legend as to the applicable restrictions on transferability in order to ensure compliance with the Securities Act, unless
in the opinion of counsel for the Company such legend is not required in order to ensure compliance with the Securities Act. The
Company may issue stop transfer instructions to its transfer agent in connection with such restrictions. Subject to the foregoing,
transfers of this Note shall be registered upon registration books maintained for such purpose by or on behalf of the Company.
Prior to presentation of this Note for registration of transfer, the Company shall treat the registered holder hereof as the owner
and holder of this Note for the purpose of receiving all payments of principal and interest hereon and for all other purposes
whatsoever, whether or not this Note shall be overdue and the Company shall not be affected by notice to the contrary.

 

    	 	 4	 

    	 	 	 

    

 

(b)       Suitability.
Notwithstanding anything to the contrary, the Company shall have the absolute right to redeem this Note and/or prohibit conversion
and sever its relationship with Holder at any time, if the Company determines in its sole discretion that its relationship with
Holder may jeopardize its state, federal, or other legal licenses, or otherwise jeopardize its ability to conduct business in
a highly regulated industry.

 

(c)       Waiver
and Amendment. Any provision of this Note may be amended, waived or modified upon the written consent of the Company and the
Holder provided, however, that no such amendment, waiver or consent shall: (i) reduce the principal amount of this Note without
Holder’s written consent, or (ii) reduce the rate of interest of this Note without Holder’s written consent.

 

(d)       Notices.
All notices, requests, demands, consents, instructions or other communications required or permitted hereunder shall be in writing
and faxed, mailed or delivered to each party at the respective addresses of the parties, or at such other address or facsimile
number as the Company shall have furnished to Holder in writing. All such notices and communications will be deemed effectively
given the earlier of (i) when received, (ii) when delivered personally, (iii) one business day after being delivered by facsimile
(with receipt of appropriate confirmation), (iv) one business day after being deposited with an overnight courier service of recognized
standing or (v) four days after being deposited in the U.S. mail, first class with postage prepaid.

 

(e)       Payment.
Unless converted into the Company’s securities pursuant to the terms hereof, payment shall be made in lawful tender of the
United States.

 

(f)       Usury.
In the event any interest is paid on this Note that is deemed to be in excess of the then legal maximum rate, then that portion
of the interest payment representing an amount in excess of the then legal maximum rate shall be deemed a payment of principal
and applied against the principal of this Note.

 

(g)       Only
Company Liable. In no event shall any stockholder, officer, director or employee of the Company be liable for any amounts
due or payable pursuant to this Note.

 

(h)       Governing
Law. This Note and all actions arising out of or in connection with this Note shall be governed by and construed in accordance
with the laws of the State of California, without regard to the conflicts of law provisions of the State of California, or of
any other state.

 

(i)       Waiver
of Jury Trial; Judicial Reference. By acceptance of this Note, Holder hereby agrees and the Company hereby agrees to waive
their respective rights to a jury trial of any claim or cause of action based upon or arising out of this Note.

 

Signature
on the following page.

 

    	 	 5	 

    	 	 	 

    

 

The
Company has caused this Note to be issued as of the date first written above.

 

	 	BONE
    BIOLOGICS CORPORATION
	 	 	 
	 	By:	                 
	 	Name:	 
	 	Title:	 

 

	NAME
    OF HOLDER:	 
	HANKEY
    CAPITAL, LLC	 
	 	                  	 
	By:	 	 
	 	 	 
	Name:	 	 
	 	 	 
	Title:	 	 
	 	 	 
	Address:	 
	 	 
	 	 
	 	 
	 	 
	 	 

 

    	 	 6Exhibit 10.3

 

SUBSCRIPTION AGREEMENT

 

Bone Biologics Corporation

2 Burlington Woods Dr., Suite 100

Burlington, MA 101803

 

Gentlemen:

 

The undersigned subscriber
or subscribers (hereinafter, the “Purchaser”) has received and carefully read this subscription agreement
(the “Agreement”) and the Confidential Offering Documents for Accredited Investors as may be amended
or supplemented from time to time consisting of certain of the Company’s securities filings (the “Securities
Filings”) which have been filed with the Securities and Exchange Commission (“SEC”) which are available
at www.sec.gov (the “Offering Documents”) which relates to the offering of securities (the “Offering”)
of Bone Biologics Corporation, a Delaware corporation (the “Company”).

 

1. Subscription.
Subject to the terms and conditions of this Agreement, the Purchaser hereby irrevocably subscribes for and agrees to purchase the
number of Shares (the “Shares”) of the Company, on the signature page hereof at a purchase price of $3.00
per Share (the “Share Purchase Price”) and hereby tenders this Agreement, together with a check or wire
transfer in such amount to the Company for such purchase.

 

The Purchaser agrees that
this subscription shall be irrevocable and shall survive the death or disability of the Purchaser. The Purchaser understands that
if this subscription is not accepted, in whole or in part, funds received by the Company pursuant hereto will be returned to the
Purchaser, without interest accrued thereon or deduction therefrom.

 

2. Acceptance of
Subscription. The Purchaser acknowledges that the Company has the right (in its sole discretion) to accept or reject this
subscription, in whole or in part, for any reason, and that this subscription shall be deemed to be accepted by the Company only
when it is signed on its behalf. The Agreement either will be accepted or rejected, in whole or in part, as promptly as practical
after receipt. The Purchaser agrees that subscriptions need not be accepted in the order subscriptions are received by the Company.
Upon rejection of this Agreement for any reason, all items received with this Agreement shall be returned to the Purchaser without
deduction for any fee, commission or expense and without accrued interest with respect to any money received, and this Agreement
shall be deemed to be null and void and of no further force or effect.

 

3. Representations,
Warranties and Covenants of the Purchaser. The Purchaser hereby represents, warrants to, and covenants with the Company
and the Placement Agent as follows:

 

(a) The Shares (collectively,
the “Securities”) offered in this Offering are not registered under the Securities Act of 1933, as amended
(the “Securities Act”), or any state securities laws. The Purchaser understands that the Offering and
sale of the Securities contemplated hereby is intended to be exempt from registration under the Securities Act, by virtue of Section
4(a)(2) thereof and the provisions of Rule 506(b) of Regulation D promulgated thereunder, based, in part, upon the representations,
warranties and agreements of the Purchaser contained in this Agreement.

 

(b) he Purchaser and the
Purchaser’s attorney, accountant, purchaser representative and/or tax advisor, if any (collectively, the “Advisors”),
acknowledges that it has received the Offering Documents, either in hard copy or electronically, and all other documents requested
by the Purchaser, has carefully reviewed them and understands the information contained therein, and the Purchaser and the Advisors,
if any, prior to the execution of this Agreement, have had access to the same kind of information as would be available in a registration
statement filed by the Company under the Securities Act. Purchaser’s decision to enter into this Agreement has been made
based solely on the independent evaluation by the Purchaser and its Advisors, if any.

 

    	 	 	 

    	 

    

 

(c) Neither the SEC nor
any state securities commission or other regulatory body has approved the Shares, or passed upon or endorsed the merits of the
Offering or confirmed the accuracy or determined the adequacy of the Offering Documents. Any representation to the contrary is
a criminal offense. The Offering Documents have not been reviewed by any federal, state or other regulatory authority. The Securities
are subject to restrictions on transferability and resale and may not be transferred or resold except as permitted under the Securities
Act, and the applicable state securities laws, pursuant to registration or exemption therefrom.

 

(d) All documents, records,
and books pertaining to the investment in the Shares (including, without limitation, the Offering Documents) have been made available
for inspection by the Purchaser and its Advisors, if any.

 

(e) The Purchaser and its
Advisors, if any, have had a reasonable opportunity to ask questions of and receive answers from a person or persons acting on
behalf of the Company concerning the Offering of the Shares and the business, financial condition, and results of operations of
the Company, and all such questions have been answered by representatives of the Company to the full satisfaction of the Purchaser
and its Advisors, if any.

 

(f) In evaluating the suitability
of an investment in the Company, the Purchaser has not relied upon any representation or other information (oral or written) other
than as stated in the Offering Documents or as contained in documents so furnished to the Purchaser or its Advisors, if any, by
the Company.

 

(g) The Purchaser is unaware
of, is in no way relying on, and did not become aware of the Offering of the Shares directly or indirectly through or as a result
of, any form of general solicitation or general advertising including, without limitation, any press release, article, notice,
advertisement or other communication published in any newspaper, magazine or similar media or broadcast over television, radio
or the internet (including without limitation, internet “blogs,” bulletin boards, discussion groups or social networking
sites) in connection with the Offering and sale of the Shares and is not subscribing for the Shares and did not become aware of
the Offering of the Shares through or as a result of any seminar or meeting to which the Purchaser was invited by, or any solicitation
of a subscription by, a person not previously known to the Purchaser in connection with investments in securities generally.

 

(h) Other than R.W. Pressprich
& Co. who is acting as placement agent (the “Placement Agent”) for the Company in the Offering, and
any broker-dealer and member of FINRA who the Placement Agent may have retained to offer and sell Shares in this Offering, the
Purchaser is not aware of any person and has been advised that no person, will receive from the Company any compensation as a broker,
finder, adviser or in any other capacity in connection with the purchase of the Shares.

 

(i) The Purchaser, either
alone or together with its Advisors, if any, has such knowledge and experience in financial, tax, and business matters, and, in
particular, investments in securities, so as to enable it to utilize the information made available to it in connection with the
Offering, to evaluate the merits and risks of an investment in the Shares and the Company and to make an informed investment decision
with respect thereto.

 

(j) The Purchaser understands
that the Company will review this Agreement and the Purchaser’s Confidential Purchaser Questionnaire which is attached hereto
as Exhibit A and incorporated herein by such reference and the Company is hereby given authority by the Purchaser
to call the Purchaser’s bank or place of employment or otherwise investigate or review the financial standing of the Purchaser;
and it is further agreed that the Company reserves the unrestricted right to reject or limit any subscription and to close the
offer at any time.

 

    	 	2	 

    	 

    

 

(k) The Purchaser is not
relying on the Company, the Placement Agent or any of their respective employees or agents with respect to the legal, tax, economic
and related considerations of an investment in the Shares, and the Purchaser has relied on the advice of, or has consulted with,
only its own Advisors, if any.

 

(l) The Purchaser represents
that the Shares are being purchased for the Purchaser’s own account, for investment purposes only and not with a view for
distribution or resale to others. The Purchaser agrees that the Purchaser will not sell or otherwise transfer the Securities unless
the Securities are registered under the Securities Act or unless in the opinion of counsel satisfactory to the Company an exemption
from such registration is available. The Purchaser understands that the Securities have not been registered under the Securities
Act by reason of a claimed exemption under the provisions of the Securities Act which depends, in part, upon the Purchaser’s
investment intention. In this connection, the Purchaser understands that it is the position of the SEC that the statutory basis
for such exemption would not be present if the Purchaser’s representation merely meant that the Purchaser’s present
intention was to hold such Shares for a short period, such as the capital gains period of tax statutes, for a deferred sale or
for any other fixed period. The Purchaser realizes that the SEC might regard a purchase with an intent inconsistent with the Purchaser’s
representation to the Company, and a sale or disposition thereof, as a deferred sale to which the exemption is not available.

 

(m) The purchase of the
Shares represents a high risk capital investment and the Purchaser is able to afford an investment in a speculative venture having
the risks and objectives of the Company. The Purchaser must bear the substantial economic risks of the investment in the Shares
indefinitely because none of the Securities may be sold, hypothecated or otherwise disposed of unless subsequently registered under
the Securities Act and applicable state securities laws or an exemption from such registration is available. Legends shall be placed
on the Securities to the effect that they have not been registered under the Securities Act or applicable state securities laws
and appropriate notations thereof will be made in the Company’s books. Stop transfer instructions will be placed with the
transfer agent of the Securities.

 

(n) The Purchaser has adequate
means of providing for such Purchaser’s current financial needs and foreseeable contingencies and has no need for liquidity
of its investment in the Shares for an indefinite period of time.

 

(o) The Purchaser satisfies
any special suitability or other applicable requirements of his state of residence and/or the state in which the transaction by
which the Shares are purchased occurs.

 

(p) The Purchaser is aware
that an investment in the Shares involves a number of very significant risks. The Purchaser is aware of the following additional
risk factors:

 

Prospective investors must undertake
their own due diligence.

 

The Offering Documents
contain limited information regarding our company, our current and future business and operations, our management and our financial
condition. While we believe the information contained in the Offering Documents accurate, such document is not meant to contain
an exhaustive discussion regarding our company. We cannot guarantee a prospective investor that the abbreviated nature of the Offering
Documents will not omit to state a material fact which a prospective investor may believe to be an important factor in determining
if an investment in the Shares is appropriate for such investor. As a result, prospective investors are required to undertake their
own due diligence of our company, our current and proposed business and operations, our management and our financial condition
to verify the accuracy and completeness of the information we are providing in the Offering Documents. This investment is suitable
only for accredited investors who have the knowledge and experience to independently evaluate our company, our business and prospects.

 

    	 	3	 

    	 

    

 

This is a “best efforts”
Offering and there are no assurances we will sell all of the Shares offered hereby.

 

This is a “best efforts”
offering which means there is no guarantee as to the minimum number of Shares we may sell in this Offering. There are no assurances
we will sell a sufficient number of Shares to accomplish our goals which are described in these Offering Documents. If we sell
less than all of the Shares offered hereby, we will have significantly less funds available to us for general working capital and
for the other purposes described herein.

 

Our management has full discretion as to the use of proceeds
from the Offering.

 

We expect to use the net
proceeds from this Offering for working capital, protein development, laboratory and testing equipment necessary to support such
development, regulatory and clinical expenses, and development work to extend the patent life of NELL-1, as well as for other purposes
not presently contemplated herein but which are related directly to growing our current business. As a result of the foregoing,
purchasers of the Shares offered hereby will be entrusting their funds to our management, upon whose judgment and discretion the
investors must depend, with only limited information concerning management’s specific intentions.

 

(q) The Purchaser meets
the requirements of at least one of the suitability standards for an “accredited investor” as that term is defined
in Regulation D under the Securities Act, and has truthfully and accurately completed the Purchaser’s Confidential Purchaser
Questionnaire contained herein.

 

(r) The Purchaser: (i)
if a natural person, represents that the Purchaser has reached the age of 21 and has full power and authority to execute and deliver
this Agreement and all other related agreements or certificates and to carry out the provisions hereof and thereof; (ii) if a corporation,
partnership, or limited liability company or partnership, or association, joint stock company, trust, unincorporated organization
or other entity, such entity is duly organized, validly existing and in good standing under the laws of the state of its organization,
the consummation of the transactions contemplated hereby is authorized by, and will not result in a violation of state law or its
charter or other organizational documents, such entity has full power and authority to execute and deliver this Agreement and all
other related agreements or certificates and to carry out the provisions hereof and thereof and to purchase and hold the Shares,
the execution and delivery of this Agreement has been duly authorized by all necessary action, this Agreement has been duly executed
and delivered on behalf of such entity and is a legal, valid and binding obligation of such entity; or (iii) if executing this
Agreement in a representative or fiduciary capacity, represents that it has full power and authority to execute and deliver this
Agreement in such capacity and on behalf of the subscribing individual, ward, partnership, trust, estate, corporation, or limited
liability company or partnership, or other entity for whom the Purchaser is executing this Agreement, and such individual, partnership,
ward, trust, estate, corporation, or limited liability company or partnership, or other entity has full right and power to perform
pursuant to this Agreement and make an investment in the Company, and represents that this Agreement constitutes a legal, valid
and binding obligation of such entity. The execution and delivery of this Agreement will not violate or be in conflict with any
order, judgment, injunction, agreement or controlling document to which the Purchaser is a party or by which it is bound.

 

(s) Any information which
the Purchaser has heretofore furnished or is furnishing herewith to the Company and/or the Placement Agent is complete and accurate
and may be relied upon by the Company and the Placement Agent in determining the availability of an exemption from registration
under Federal and state securities laws in connection with the Offering. The Purchaser further represents and warrants that it
will notify and supply corrective information to the Company and the Placement Agent immediately upon the occurrence of any change
therein occurring prior to the Company’s issuance of the Shares.

 

    	 	4	 

    	 

    

 

(t) The Purchaser has significant
prior investment experience, including investments in non-registered securities. The Purchaser has a sufficient net worth to sustain
a loss of its entire investment in the Company in the event such a loss should occur. The Purchaser’s overall commitment
to investments which are not readily marketable is not excessive in view of the Purchaser’s net worth and financial circumstances
and the purchase of the Shares will not cause such commitment to become excessive. The investment is a suitable one for the Purchaser.

 

(u) No oral or written
representations have been made, or oral or written information furnished, to the Purchaser or its Advisors, if any, in connection
with the Offering which are in any way inconsistent with the information contained in the Offering Documents.

 

(v) The Purchaser has relied
only on the information contained in the Securities Filings.

 

(w) The Purchaser understands
and agrees that all certificates representing the Shares will contain the following restrictive legend:

 

THESE
SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (“1933 ACT”), OR ANY STATE
SECURITIES LAWS AND MAY NOT BE SOLD OR OTHERWISE TRANSFERRED OR DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT
UNDER THE 1933 ACT AND ANY APPLICABLE STATE SECURITIES LAWS, OR AN OPINION OF COUNSEL SATISFACTORY TO COUNSEL TO DB COWORKING HOLDINGS
CORP. THAT AN EXEMPTION FROM REGISTRATION UNDER THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS IS AVAILABLE.

 

(x) The Purchaser should
check the Office of Foreign Assets Control (“OFAC”) website at <http://www.treas.gov/ofac> before making
the following representations. The Purchaser represents that the amounts invested by it in the Company in the Offering were
not and are not directly or indirectly derived from activities that contravene federal, state or international laws and regulations,
including anti-money laundering laws and regulations. Federal regulations and Executive Orders administered by OFAC prohibit, among
other things, the engagement in transactions with, and the provision of services to, certain foreign countries, territories, entities
and individuals. The lists of OFAC prohibited countries, territories, persons and entities can be found on the OFAC website at
<http://www.treas.gov/ofac>. In addition, the programs administered by OFAC (the “OFAC Programs”)
prohibit dealing with individuals1 or entities in
certain countries regardless of whether such individuals or entities appear on the OFAC lists.

 

(y) To the best of the
Purchaser’s knowledge, none of: (1) the Purchaser; (2) any person controlling or controlled by the Purchaser; (3) if the
Purchaser is a privately-held entity, any person having a beneficial interest in the Purchaser; or (4) any person for whom the
Purchaser is acting as agent or nominee in connection with this investment is a country, territory, individual or entity named
on an OFAC list, or a person or entity prohibited under the OFAC Programs. Please be advised that the Company may not accept any
amounts from a prospective investor if such prospective investor cannot make the representations set forth in the preceding paragraph.
The Purchaser agrees to promptly notify the Company and the Placement Agent should the Purchaser become aware of any change in
the information set forth in these representations. The Purchaser understands and acknowledges that, by law, the Company may be
obligated to “freeze the account” of the Purchaser, either by prohibiting additional subscriptions from the Purchaser,
declining any redemption requests and/or segregating the assets in the account in compliance with governmental regulations. The
Purchaser further acknowledges that the Company may, by written notice to the Purchaser, suspend the redemption rights, if any,
of the Purchaser if the Company reasonably deems it necessary to do so to comply with anti-money laundering regulations applicable
to the Company or any of the Company’s other service providers. These individuals include specially designated nationals,
specially designated narcotics traffickers and other parties subject to OFAC sanctions and embargo programs.

 

 

 1 These
individuals include specially designated nationals, specially designated narcotics traffickers and other parties subject to OFAC
sanctions and embargo programs.

 

    	 	5	 

    	 

    

 

(z) To the best of the
Purchaser’s knowledge, none of: (1) the Purchaser; (2) any person controlling or controlled by the Purchaser; (3) if the
Purchaser is a privately-held entity, any person having a beneficial interest in the Purchaser; or (4) any person for whom the
Purchaser is acting as agent or nominee in connection with this investment is a senior foreign political figure[2],
or any immediate family[3] member or close associate[4]
of a senior foreign political figure, as such terms are defined in the footnotes below.

 

(aa) If the Purchaser is
affiliated with a non-U.S. banking institution (a “Foreign Bank”), or if the Purchaser receives deposits
from, makes payments on behalf of, or handles other financial transactions related to a Foreign Bank, the Purchaser represents
and warrants to the Company that: (1) the Foreign Bank has a fixed address, other than solely an electronic address, in a country
in which the Foreign Bank is authorized to conduct banking activities; (2) the Foreign Bank maintains operating records related
to its banking activities; (3) the Foreign Bank is subject to inspection by the banking authority that licensed the Foreign Bank
to conduct banking activities; and (4) the Foreign Bank does not provide banking services to any other Foreign Bank that does not
have a physical presence in any country and that is not a regulated affiliate.

 

(bb) (For ERISA plans
only) The fiduciary of the ERISA plan represents that such fiduciary has been informed of and understands the Purchaser’s
investment objectives, policies and strategies, and that the decision to invest “plan assets” (as such term is defined
in ERISA) in the Company is consistent with the provisions of ERISA that require diversification of plan assets and impose other
fiduciary responsibilities. The Purchaser fiduciary or plan (a) is responsible for the decision to invest in the Company; (b) is
independent of the Company or any of its affiliates; (c) is qualified to make such investment decision; and (d) in making such
decision, the Purchaser fiduciary or plan has not relied primarily on any advice or recommendation of the Company or any of its
affiliates.

 

(cc) The Purchaser: (i)
if a natural person, represents on its behalf; or (ii) if a corporation, partnership, or limited liability company or partnership,
or association, joint stock corporation or other entity, represents on its behalf and the behalf of its officers, directors and
principal stockholders, connected with the Purchaser at the time of this Agreement, that it is not subject to any “Bad Actor”
disqualifications described in Rule 506(d)(1)(i) to (viii) under the Securities Act (a “Disqualifying Event”),
except for a Disqualifying Event covered by Rule 506(d)(2) or (d)(3).

 

 

 2
A “senior foreign political figure” is defined as a senior official in the executive, legislative, administrative,
military or judicial branches of a foreign government (whether elected or not), a senior official of a major foreign political
party, or a senior executive of a foreign government owned corporation. In addition, a “senior foreign political figure”
includes any corporation, business or other entity that has been formed by, or for the benefit of, a senior foreign political
figure.

 

3
“Immediate family” of a senior foreign political figure typically includes the figure’s parents, siblings, spouse,
children and in-laws.

 

4
A “close associate” of a senior foreign political figure is a person who is widely and publicly known to maintain an
unusually close relationship with the senior foreign political figure, and includes a person who is in a position to conduct substantial
domestic and international financial transactions on behalf of the senior foreign political figure.

 

    	 	6	 

    	 

    

 

The foregoing representations
and warranties are true and accurate as of the date hereof, shall be true and accurate as of the date of delivery of this Agreement
and accompanying documents to the Company and Placement Agent and shall survive such delivery. If, in any respect, those representations
and warranties shall not be true and accurate prior to delivery of the payment pursuant to paragraph 1, the undersigned shall immediately
give written notice to the Company and the Placement Agent specifying which representations and warranties are not true and accurate
and the reason therefor. In addition, the Purchaser agrees to notify the Company and the Placement Agent immediately in writing
if the Purchaser ceases to be an “accredited investor” within the meaning of Rule 501(a) of Regulation D under the
Securities Act. Until the Purchaser provides a notice described in the preceding two sentences, the Company and the Placement Agent
may rely on the representations, warranties, covenants and agreements contained herein in connection with any matter related to
the Company and/or the Placement Agent. Without limiting the generality of the preceding sentence, the Company and the Placement
Agent may assume that all such representations and warranties are correct in all respects as of the date hereof and may rely on
such representations and warranties in determining whether (i) the Purchaser is suitable as a purchaser of Shares, (ii) Shares
may be sold to the Purchaser or any other Purchaser without first registering the Shares under the Securities Act or any other
applicable securities laws, (iii) the conditions to the acceptance of subscriptions for Shares have been satisfied, and (iv) the
Purchaser meets the eligibility standards set by the Company.

 

4. Representations,
Warranties and Covenants of the Company. The Company hereby represents, warrants to and covenants with the Purchaser as
follows:

 

(a) The Company is a corporation
duly organized, validly existing and in good standing under the laws of the state of Delaware. The Company is not in violation
of any of the provisions of its certificate of incorporation, by-laws or other organizational or charter documents, each as may
be amended (the “Internal Documents”). The Company is qualified to transact business as a foreign corporation
and is in good standing under the laws of each jurisdiction where the location of its properties or the conduct of its business
makes such qualification necessary, except where the failure to be so qualified would not have a material adverse effect on the
business, assets, liabilities, results of operations, condition (financial or otherwise), properties or prospects of the Company.

 

(b) The Company has all
power and authority to: (i) conduct its business as presently conducted and as proposed to be conducted as described in the Offering
Documents; (ii) enter into and perform its obligations under this Agreement; and (iii) issue, sell and deliver the Shares. The
execution and delivery of each of the Agreement and the issuance, sale and delivery of the Shares has been duly authorized by all
necessary corporate action. This Agreement has been duly executed and when delivered will constitute upon due execution and delivery,
will constitute, valid and binding obligations of the Company, enforceable against the Company in accordance with its terms except
as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws now or
hereafter in effect relating to or affecting creditors’ rights generally, including the effect of statutory and other laws
regarding fraudulent conveyances and preferential transfers, and except that no representation is made herein regarding the enforceability
of the Company’s obligations to provide indemnification and contribution remedies under the securities laws and subject to
the limitations imposed by general equitable principles (regardless of whether such enforceability is considered in a proceeding
at law or in equity).

 

(c) The Shares will be
duly and validly issued, fully paid and non-assessable, and free from all taxes or liens with respect to the issue thereof and
shall not be subject to preemptive rights, rights of first refusal and/or other similar rights of stockholders of the Company and/or
any other person.

 

    	 	7	 

    	 

    

 

(d) No action, suit or
proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or its property
is pending or, to the best knowledge of the Company, threatened that (i) could reasonably be expected to have a material adverse
effect on the performance of this Agreement or the other Offering Documents by the Company or the consummation of any of the transactions
contemplated hereby or thereby, and/or (ii) could reasonably be expected to have a material adverse effect on the Company’s
operations.

 

(e) The Company owns or
leases all such properties as are necessary to the conduct of its operations as presently conducted.

 

(f) The Company is not
in (i) violation or default of any provision of its Internal Documents; (ii) default or material violation of the terms of any
indenture, contract, lease, mortgage, deed of trust, note agreement, loan agreement or other agreement, obligation, condition,
covenant or instrument to which it is a party or bound or to which its property is subject; and/or (iii) default or material violation
of any statute, law, rule, regulation, judgment, order or decree applicable to the Company of any court, regulatory body, administrative
agency, governmental body, arbitrator or other authority having jurisdiction over the Company or any of its properties, as applicable.

 

(g) The Company has filed
all U.S. federal, state and local tax returns that are required to be filed or has requested or will request extensions thereof
and has paid all taxes required to be paid by it and any other assessment, fine or penalty levied against the Company, to the extent
that any of the foregoing is due and payable, except for any such assessment, fine or penalty that is currently being contested
in good faith.

 

(h) Assuming the accuracy
of the Purchaser’s representations and warranties set forth in this Agreement, no registration under the Securities Act of
the Shares is required for the offer and sale of the Shares to the Purchaser in the manner contemplated herein and in the Offering
Documents.

 

(i) The Company has not
engaged in any form of general solicitation or general advertising (within the meaning of Regulation D under the Securities Act)
in connection with the offer or sale of any of the Shares.

 

(j) Since the date of the
Offering Documents, there has not been:

 

	 	(i)	any material adverse change in the financial condition, operations or business of the Company from that shown on the Company Financial
Statements, or any material transaction or commitment effected or entered into by the Company outside of the ordinary course of
business;

 

	 	(ii)	any issuance by the Company of any securities, other than grants of options under the Company’s stock option plan(s) made
to its officers, directors and employees; or

 

	 	(iii)	any incurrence of any material liability by the Company outside of the ordinary course of business.

 

(k) The books of account,
ledgers, order books, records and documents of the Company accurately and completely reflect all material information relating
to the business of the Company, the location and collection of its assets, and the nature of all transactions giving rise to the
obligations or accounts receivable of the Company.

 

    	 	8	 

    	 

    

 

(l) The Company shall file
a Form D with respect to the Shares as required under Regulation D. The Company shall legally qualify the Shares for sale to the
Purchasers in each Closing pursuant to this Offering Materials under applicable securities or “blue sky” laws of the
states of the United States (or obtain an exemption from such qualification), and shall pay all fees and expenses of such counsel
in connection therewith, including, but not limited to, all state filing fees and such counsel’s legal fees and expenses.

 

(m) Except for commissions
which may be paid to the Placement Agent, the Company has taken no action which would give rise to any claim by any person for
brokerage commissions, transaction fees or similar payments relating to this Agreement or the transactions contemplated hereby.

 

(n) None of the information
set forth in the Offering Documents contains any untrue statement of material fact or omits to state any material fact necessary
in order to make the statements made herein or therein, in light of the circumstances under which they were made, not misleading.

 

5. Indemnification.
The Purchaser acknowledges that the Purchaser understands the meaning and legal consequences of the representations, warranties
and covenants in Section 3 hereof and that the Company and the Placement Agent have relied upon such representations, warranties
and covenants, and the Purchaser hereby agrees to indemnify and hold harmless the Company, the Placement Agent and each of their
respective officers, directors, controlling persons, agents and employees, from and against any and all losses, damages or liabilities
due to or arising out of a breach of any representation, warranty or covenant made by the Purchaser herein. Notwithstanding the
foregoing, however, no representation, warranty, covenant, acknowledgment or agreement made herein by the Purchaser shall in any
manner be deemed to constitute a waiver of any rights granted to the Purchaser under Federal or state securities laws. All representations,
warranties and covenants contained in this Agreement and the indemnification contained in this Section 5 shall survive the
acceptance of this subscription.

 

6. Restrictions on
Transfer. The Purchaser understands and agrees that the Securities shall not be sold, pledged, hypothecated or otherwise
transferred unless the Securities are registered under the Securities Act and applicable state securities laws or are exempt therefrom.

 

7. Irrevocability;
Binding Effect. The Purchaser hereby acknowledges and agrees that the subscription hereunder is irrevocable by the Purchaser,
except as required by applicable law, and that this Agreement shall survive the death or disability of the Purchaser and shall
be binding upon and inure to the benefit of the parties and their heirs, executors, administrators, successors, legal representatives,
and permitted assigns. If the Purchaser is more than one person, the obligations of the Purchaser hereunder shall be joint and
several and the agreements, representations, warranties, and acknowledgments herein shall be deemed to be made by and be binding
upon each such person and such person’s heirs, executors, administrators, successors, legal representatives, and permitted
assigns.

 

8. Investor Qualification.
The Purchaser previously or simultaneously herewith has furnished a completed and executed Confidential Purchaser Questionnaire,
the information in which is true and correct in all respects and which is hereby incorporated by reference herein.

 

9. Modification.
Neither this Agreement nor any provision hereof shall be waived, modified, changed, discharged or terminated except by an instrument
in writing signed by the party against whom any waiver, modification, change, discharge or termination is sought.

 

10. Notices.
All notices, requests, consents and other communications hereunder shall be in writing and shall be deemed to have been duly made
when delivered, or mailed by registered or certified mail, return receipt requested:

 

    	 	9	 

    	 

    

 

(a) If to the
Purchaser, to the address set forth on the signature page of this Agreement, or at such other address as the Purchaser may hereafter
have advised the Company by written notification.

 

(b) If to the
Company, to the address set forth on the first page of this Agreement, or at such other address as the Company may hereafter have
advised the Purchaser by written notification.

 

11. Survival of Representations
and Warranties. Each party hereto covenants and agrees that the representations and warranties of such party contained
in this Agreement shall survive the Closing.

 

12. Entire Agreement.
This Agreement contains the entire agreement of the parties with respect to the matters set forth herein and supersede all prior
oral or written agreements and understandings, if any, relating to the subject matter hereof.

 

13. Assignability.
This Agreement is not transferable or assignable by the undersigned or any successor thereto.

 

14. Registration
Rights. One or more Purchasers (collectively, the “Demand Holder”) holding not less than 500,000 Shares, may
make a written request, which request will specify the aggregate number of Shares to be registered and will also specify the intended
methods of disposition thereof (the “Request Notice”) to the Company for registration with the SEC under and in accordance
with the provisions of the Securities Act of all or part of the Shares then owned by the Demand Holder (a “Demand Registration”).
Upon any request for a Demand Registration, the Company will use commercially reasonable efforts to effect the prompt registration
under the Securities Act of the Shares which the Company has been so requested to register by the Demand Holder as contained in
the Request Notice, all to the extent required to permit the disposition of the Shares so to be registered in accordance with the
intended method or methods of disposition of each seller of such Shares. The Company will not be required to effect more than one
Demand Registration. It shall be a condition precedent to the obligations of the Company to take any action that Purchasers requesting
inclusion in any registration shall furnish to the Company such information regarding them, the Shares held by them, the intended
method of disposition of such Shares and other matters as the Company shall reasonably request and as shall be required in connection
with the action to be taken by the Company. The obligations hereunder shall expire at such time as the Shares may be sold to the
pubic without registration without regard to the volume and manner requirements under Rule 144.

 

15. Governing Law;
Waiver Of Jury Trial, Etc. This Agreement shall be governed by and construed solely and exclusively under and pursuant
to the laws of the State of Delaware as applied to agreements among Delaware residents entered into and to be performed entirely
within Delaware. THE PARTIES HERETO AGREE TO WAIVE THEIR RESPECTIVE RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED
UPON OR ARISING OUT OF THIS AGREEMENT OR ANY DOCUMENT OR AGREEMENT CONTEMPLATED HEREBY. THE PARTY PREVAILING THEREIN SHALL BE ENTITLED
TO PAYMENT FROM THE OTHER PARTY HERETO OF ALL OF ITS REASONABLE COUNSEL FEES AND DISBURSEMENTS.

 

16. Further Assurances.
Each party hereto shall do and perform or cause to be done and performed all such further acts and shall execute and deliver all
such other agreements, certificates, instruments and documents as any other party hereto reasonably may request in order to carry
out the intent and accomplish the purposes of this Agreement and the consummation of the transactions contemplated hereby.

 

    	 	10	 

    	 

    

 

17. Counterparts.
This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, and all of which
shall constitute one and the same document. In the event that any signature (including a financing signature page) 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.

 

18. Use of Pronouns
and Defined Terms. All pronouns and any variations thereof used herein shall be deemed to refer to the masculine, feminine,
neuter, singular or plural as the identity of the person or persons referred to may require. All terms not otherwise defined herein
shall have the same meaning as in the Offering Documents.

 

19. Severability.
Any provision of this Agreement that is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof but shall be interpreted
as if it were written so as to be enforceable to the maximum extent permitted by applicable law, and any such prohibition or unenforceability
in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction. To the extent permitted
by applicable law, the parties hereby waive any provision of law which renders any provision hereof prohibited or unenforceable
in any respect.

 

20. Most Favored
Nations. From the date hereof until such time as the Offering is terminated, in the event the Company issues or sells any
shares of Common Stock or securities directly or indirectly convertible into or exercisable for Common Stock (“Common Stock
Equivalents”) or amends the Offering Documents relating to any sale or issuance of Common Stock or Common Stock Equivalents,
if the terms and conditions thereunder are more favorable to such investors as the terms and conditions granted under the Offering
Documents, the Offering Documents shall be deemed automatically amended so as to give the Purchaser the benefit of such more favorable
terms or conditions and the Company shall provide to Purchaser the benefits thereof including, if applicable, issuing additional
Shares or providing or modifying the Common Stock Equivalents. The Company shall provide Purchaser with all executed transaction
documents relating to any such sale or issue of Common Stock or Common Stock Equivalents.

 

[SIGNATURE PAGE TO FOLLOW]

 

    	 	11	 

    	 

    

 

IN
WITNESS WHEREOF, the undersigned has executed this Agreement on the date his signature has been subscribed and sworn to below.

 

	No. of Shares: _____________________	 	Amount of Subscription: $______________
	 	 	 
	The Shares are to be issued in 	 	____________________________________________
	(check one box):	 	Print Name of Investor
	 	 	 
	[  ] individual name	 	____________________________________________
	 	 	Print Name of Joint Investor (if applicable)
	[  ] joint tenants with rights of survivorship	 	 
	 	 	____________________________________________
	[  ] tenants in entirety	 	Signature of Investor
	 	 	 
	[  ] corporation (an officer must sign)	 	____________________________________________
	 	 	Signature of Joint Investor
	
        [  ] partnership
        (all general partners must sign)

         

        [  ] trust

         

        [  ] limited liability
        company
	 	 
	 	 	___________________________________
	 	 	Print Name of Trust, Corporation, Partnership, LLC or other Institutional 
	email address: _______________________	 	Investor
	 	 	 
	fax number: _________________________	 	 
	 	 	By:__________________________________________
	Subscriber(s) address:	 	 
	________________________________	 	Title:_________________________________________
	________________________________	 	 
	 	 	_____________________________________________
	Taxpayer ID No.: _____________________	 	Name of natural person with voting and dispositive control over the Shares being subscribed for

 

Accepted
as of this                     
day of                                ,
2017

 

BONE
BIOLOGICS CORPORATION

 

By:                                                     ____________________

Stephen
LaNeve, Chief Executive Officer

 

    	 	12	 

    	 

    

 

EXHIBIT
A

 

CONFIDENTIAL
PURCHASER QUESTIONNAIRE

 

PART I: INFORMATION TO BE PROVIDED BY ALL
INVESTORS.

 

	A.	 	Name of Purchaser: _____________________________________________________
	 	 	 
	B.	 	Accreditation. Check all boxes which correctly describe you:
	 	 	 
	[  ]	 	You are a natural person whose individual net worth, or joint net worth with your spouse, at the time of purchase, exceeds $1,000,000. For the purposes of calculating net worth under this paragraph:

 

	 	●	your primary residence cannot be included as an asset;
	 	 	 
	 	●	indebtedness that is secured by your primary residence, up to the estimated fair market value of the primary residence at the time of the sale of securities, is not included as a liability except that if the amount of such indebtedness outstanding at the time of the sale of securities exceeds the amount outstanding 60 days before such time, other than as a result of the acquisition of the primary residence, the amount of such excess is included as a liability; and
	 	 	 
	 	●	indebtedness that is secured by your primary residence in excess of the estimated fair value of the primary residence at the time of the sale of securities is included as a liability.

 

	[  ]	You are a natural person who had an individual income in excess of $200,000 in each of the two most recent years or a joint income with your spouse in excess of $300,000 in each of those years and have a reasonable expectation of reaching the same income level during the current year.
	 	 
	[  ]	You are a director of the Company.
	 	 
	[  ]	You have total assets in excess of $5,000,000 and were not formed for the specific purpose of acquiring the securities offered by the Company and are any of the following: a corporation, a partnership, a Massachusetts or similar business trust, or an organization described in Section 501(c)(3) of the Internal Revenue Code.
	 	 
	[  ]	You are a bank or savings and loan association or other institution acting in your individual or fiduciary capacity.
	 	 
	[  ]	You are a broker or dealer registered pursuant to Section 15 of the Securities Exchange Act of 1934.
	 	 
	[  ]	You are an insurance company.
	 	 
	[  ]	You are an investment company or business development company under the Investment Company Act of 1940.
	 	 
	[  ]	You are a private business development company under the Investment Advisers Act of 1940.

 

    	 	13	 

    	 

    

 

	[  ]	You are a Small Business Investment Company licensed by the U.S. Small Business Administration under 301(c) or (d) of the Small
Business Investment Act of 1958.

 

	[  ]	You are a trust, not formed for the specific purpose of acquiring the Shares offered by the Company, with total assets in excess
of $5,000,000 and whose purchase is directed by a sophisticated person.

 

	[  ]	You are an employee benefit plan whose investment decision is being made by a plan fiduciary, which is either a bank, savings
and loan association, insurance company or registered investment adviser, or an employee benefit plan whose total assets are in
excess of $5,000,000 or a self-directed employee benefit plan whose investment decisions are made solely by persons that are “accredited
investors” (i.e., they meet any of the standards listed above).

 

	[  ]	You are an entity as to which all of the equity owners (or, in the case of a trust, all of the income beneficiaries) are “accredited
investors” (i.e., they must meet one or more of the standards listed above).

 

	[  ]	None of the above.

 

	C.	Provide Answers to the Following Questions:

 

	1.	Are you directly or indirectly an affiliate or associate of any member firm of the Financial Industry Regulatory Authority, Inc. (“FINRA”)?

 

	 	[  ]	Yes	 	[  ]	No

 

	 	An “affiliate” of a specified person is a person that directly or indirectly through one or more intermediaries, controls or is controlled by, or is under common control with the specified person.
	 	 
	 	The term “associate” means (1) any corporation or organization (other than the Company or any subsidiary) or which you are an officer or partner, or of which you are, directly or indirectly, the owner beneficially of 10% or more of any class or equity securities, (2) any trust or other estate in which you have a substantial beneficial interest or as to which you serve as trustee or in a similar fiduciary capacity, or (3) any relative or spouse, who has the same home as such person or who is a director or officer of the Company of any of its subsidiaries.
	 	 
	 	If yes, please describe your affiliation or association:

 

	2.	Have you made any subordinated loans to any member of FINRA?

 

	 	[  ]	Yes	 	[  ]	No

 

	 	If yes, please set forth the details of the loan(s) including the original amount(s), date(s), interest rate(s), other material terms, and amount(s) outstanding as of the date hereof:

  

 

 

	3.	Are you subject to any “Bad Actor” disqualifications described in Rule 506(d)(1)(i) to (viii) under the Securities Act (a “Disqualifying Event”)? For the purposes of this question, if you are not a natural person(s) and the subscription is being made by a corporation, partnership, or limited liability company or partnership, or association, joint stock corporation or any other entity, “you” means all officers, directors and 5% or greater shareholders of the entity subscriber. Prior to responding to this question, please carefully review Annex 1 to this Confidential Purchaser Questionnaire which contains the full text of these rules.

 

	 	[  ]	Yes	 	[  ]	No

 

    	 	14	 

    	 

    

 

If your answer is “yes,” please
provide the complete details regarding such action(s) and attach copies of all relevant documents.

  

4. Are you subject to any pending action which
if determined in a manner adverse to you could result in a Disqualifying Event? For the purposes of this question, if you are not
a natural person(s) and the subscription is being made by a corporation, partnership, or limited liability company or partnership,
or association, joint stock corporation or any other entity, “you” means all officers, directors and 5% or greater
shareholders of the entity subscriber. Prior to responding to this question, please carefully review Annex 1 to this Confidential
Purchaser Questionnaire which contains the full text of these rules.

 

	 	[  ]	Yes	 	[  ]	No

 

If your answer is “yes,” please
provide the complete details regarding such action(s) and attach copies of all relevant documents.

 

    	 	15	 

    	 

    

 

PART II: INFORMATION TO BE PROVIDED BY INDIVIDUAL
INVESTORS:

 

Identify the state in which you maintain your
principal residence: ___________________________

 

Occupation: ___________________________________________________________________

 

Employer: _____________________________________________________________________

 

If self-employed, provide the following
information:

 

Name of business: ______________________________________________________________

 

Length of time engaged in current business:
_______ years.

 

The current value of my liquid assets (cash,
marketable securities, cash surrender value of my life insurance and other items easily convertible into cash) is sufficient to
provide for my current needs and possible personal contingencies:

 

	 	[  ]	Yes	 	[  ]	No

 

Education:

 

	Year	 	School	 	Field of Study	 	Degree	 	Date Conferred

 

		______________________________________________________________________________	

 

______________________________________________________________________________

 

Please indicate the frequency of your investment
in marketable securities, i.e., those where prices are quoted regularly on exchange or in the over-the-counter market:

 

	 	[  ]	often	 	[  ]	occasionally	 	[  ]	seldom	 	[  ]	never

 

Do you consider yourself to be an experienced
and sophisticated investor?

 

	 	[  ]	Yes	 	[  ]	No

 

Do you alone, or with your Purchaser Representative,
have such knowledge and experience in financial and business matters that you are capable of evaluating the risks and merits of
this investment and feel that you can afford a loss of your entire investment in the Company?

 

	 	[  ]	Yes	 	[  ]	No

 

    	 	16	 

    	 

    

 

PART III: INFORMATION TO BE PROVIDED
BY PURCHASERS OTHER THAN INDIVIDUALS

 

Identify type of
entity (corporation, trust, limited liability company, partnership or other entity):

 

	________________________________________________________________________	

 

Identify jurisdiction
under the laws of which the entity is organized: ____________________ 

 

Identify the date
the entity was organized: _______________________________________

 

Identify jurisdiction
where the entity’s principal place of business is located:_____________

 

Describe principal
business conducted: _________________________________________

 

(You may be asked to furnish a copy of a
properly certified company resolution or organizational documents authorizing the purchaser to make an investment of this type).

 

    	 	17	 

    	 

    

 

PART IV: SIGNATURE

 

The undersigned hereby represents and warrants
that all of its answers to this Purchaser Questionnaire are true as of the date of its execution of the Agreement pursuant to which
it subscribed for the Shares.

 

		 	
	Name of Purchaser (please print)	 	Name of Co-Purchaser (please print)
	 	 	 
		 	
	Signature of Purchaser (Entities, please	 	Signature of Co-Purchaser
	provide signature of Purchaser’s duly	 	 
	authorized signatory.)	 	 

 

		 	 
	Name of Signatory (entities only)(please print)	 	 
	 	 	 
		 	 
	Title of Signatory (entities only)(please print)	 	 
	 	 	 
	Date:                                             _______________________	 	 

 

    	 	18	 

    	 

    

 

Annex 1

 

“Bad Actor” Disqualification

Rules 506(d)(1) and (2) of the Securities
Act of 1933

 

(d) “Bad Actor” disqualification.
(1) No exemption under this section shall be available for a sale of securities if the issuer; any predecessor of the issuer; any
affiliated issuer; any director, executive officer, other officer participating in the Offering, general partner or managing member
of the issuer; any beneficial owner of 20% or more of the issuer’s outstanding voting equity securities, calculated on the
basis of voting power; any promoter connected with the issuer in any capacity at the time of such sale; any investment manager
of an issuer that is a pooled investment fund; any person that has been or will be paid (directly or indirectly) remuneration for
solicitation of purchasers in connection with such sale of securities; any general partner or managing member of any such investment
manager or solicitor; or any director, executive officer or other officer participating in the Offering of any such investment
manager or solicitor or general partner or managing member of such investment manager or solicitor:

 

(i) Has been convicted,
within ten years before such sale (or five years, in the case of issuers, their predecessors and affiliated issuers), of any felony
or misdemeanor:

 

	 	(A)	In connection with the purchase or sale of any security;
	 	 	 
	 	(B)	Involving the making of any false filing with the Commission; or
	 	 	 
	 	(C)	Arising out of the conduct of the business of an underwriter, broker, dealer, municipal securities dealer, investment adviser or paid solicitor of purchasers of securities;

 

(ii) Is subject to any
order, judgment or decree of any court of competent jurisdiction, entered within five years before such sale, that, at the time
of such sale, restrains or enjoins such person from engaging or continuing to engage in any conduct or practice:

 

	 	(A)	In connection with the purchase or sale of any security;
	 	 	 
	 	(B)	Involving the making of any false filing with the Commission; or
	 	 	 
	 	(C)	Arising out of the conduct of the business of an underwriter, broker, dealer, municipal securities dealer, investment adviser or paid solicitor of purchasers of securities;

 

(iii) Is subject to a final
order of a state securities commission (or an agency or officer of a state performing like functions); a state authority that supervises
or examines banks, savings associations, or credit unions; a state insurance commission (or an agency or officer of a state performing
like functions); an appropriate federal banking agency; the U.S. Commodity Futures Trading Commission; or the National Credit Union
Administration that:

 

(A) At the time of such
sale, bars the person from:

 

	 	(1)	Association with an entity regulated by such commission, authority, agency, or officer;
	 	 	 
	 	(2)	Engaging in the business of securities, insurance or banking; or
	 	 	 
	 	(3)	Engaging in savings association or credit union activities; or

 

    	 	19	 

    	 

    

 

(B) Constitutes a final
order based on a violation of any law or regulation that prohibits fraudulent, manipulative, or deceptive conduct entered within
ten years before such sale;

 

(iv) Is subject to an order
of the Commission entered pursuant to section 15(b) or 15B(c) of the Securities Exchange Act of 1934 (15 U.S.C. 78 o (b)
or 78 o -4(c)) or section 203(e) or (f) of the Investment Advisers Act of 1940 (15 U.S.C. 80b-3(e) or (f)) that, at the
time of such sale:

 

	 	(A)	Suspends or revokes such person’s registration as a broker, dealer, municipal securities dealer or investment adviser;
	 	 	 
	 	(B)	Places limitations on the activities, functions or operations of such person; or
	 	 	 
	 	(C)	Bars such person from being associated with any entity or from participating in the Offering of any penny stock;

 

(v) Is subject to any order
of the Commission entered within five years before such sale that, at the time of such sale, orders the person to cease and desist
from committing or causing a violation or future violation of:

 

	 	(A)	Any scienter-based anti-fraud provision of the federal securities laws, including without limitation section 17(a)(1) of the Securities Act of 1933 (15 U.S.C. 77q(a)(1)), section 10(b) of the Securities Exchange Act of 1934 (15 U.S.C. 78j(b)) and 17 CFR 240.10b-5, section 15(c)(1) of the Securities Exchange Act of 1934 (15 U.S.C. 78 o (c)(1)) and section 206(1) of the Investment Advisers Act of 1940 (15 U.S.C. 80b-6(1)), or any other rule or regulation thereunder; or
	 	 	 
	 	(B)	Section 5 of the Securities Act of 1933 (15 U.S.C. 77e).

 

(vi) Is suspended or expelled
from membership in, or suspended or barred from association with a member of, a registered national securities exchange or a registered
national or affiliated securities association for any act or omission to act constituting conduct inconsistent with just and equitable
principles of trade;

 

(vii) Has filed (as a registrant
or issuer), or was or was named as an underwriter in, any registration statement or Regulation A offering statement filed with
the Commission that, within five years before such sale, was the subject of a refusal order, stop order, or order suspending the
Regulation A exemption, or is, at the time of such sale, the subject of an investigation or proceeding to determine whether a stop
order or suspension order should be issued; or

 

(viii) Is subject to a
United States Postal Service false representation order entered within five years before such sale, or is, at the time of such
sale, subject to a temporary restraining order or preliminary injunction with respect to conduct alleged by the United States Postal
Service to constitute a scheme or device for obtaining money or property through the mail by means of false representations.

 

(2) Paragraph (d)(1) of this section shall
not apply:

 

(i) With respect to any
conviction, order, judgment, decree, suspension, expulsion or bar that occurred or was issued before September 23, 2013;

 

(ii) Upon a showing of
good cause and without prejudice to any other action by the Commission, if the Commission determines that it is not necessary under
the circumstances that an exemption be denied;

 

    	 	20	 

    	 

    

 

(iii) If, before the relevant
sale, the court or regulatory authority that entered the relevant order, judgment or decree advises in writing (whether contained
in the relevant judgment, order or decree or separately to the Commission or its staff) that disqualification under paragraph (d)(1)
of this section should not arise as a consequence of such order, judgment or decree; or

 

(iv) If the issuer establishes
that it did not know and, in the exercise of reasonable care, could not have known that a disqualification existed under paragraph
(d)(1) of this section.

 

(3) For purposes of paragraph (d)(1) of this
section, events relating to any affiliated issuer that occurred before the affiliation arose will be not considered disqualifying
if the affiliated entity is not:

 

(i) In control of the issuer; or

 

(ii) Under common control with the issuer by a third party that
was in control of the affiliated entity at the time of such events.

 

 

    	 	21

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