Document:

PROLOR BIOTECH LTD.

 

NON COMPETE AGREEMENT

 

This Non Compete Agreement
(the "Agreement") is entered into by and between Prolor Biotech Ltd., an Israeli company (together with any current
and future subsidiaries, affiliates, successors or assigns, the "Company"), and Abraham Havron ("Consultant").

 

In consideration of
Consultant's employment with the Company and the receipt of consideration previously paid, now or hereafter paid to Consultant,
and the covenants and agreements herein contained, the Company and Consultant, intending to be legally bound hereby, agree as follows:

 

 1. Non-competition.
Consultant agrees that, while Consultant is employed by the Company and for a period of one year after termination of Consultant's
employment with the Company for whatever reason, Consultant shall not, directly or indirectly, own, operate, engage in, assist,
be employed by, or have any material interest in any business that is engaged, or planning to be engaged, in the development, manufacturing,
marketing or selling of long-acting therapeutic proteins, provided that this covenant shall not prohibit Consultant from owning
up to five percent of any class of equity securities for which an active public trading market exists.

 

2. Non Solicitation.
Consultant agrees that, while Consultant is employed by the Company and for a period of one year after termination of Consultant's
employment with the Company for whatever reason, Consultant shall not, directly or indirectly, solicit or induce, or attempt to
solicit or induce, any Consultant, consultant, service provider, agent, distributor, customer or supplier of the Company to terminate,
reduce or modify the scope of such person's or entity’s engagement with the Company.

 

3. Acknowledgment.
Consultant confirms that he has carefully reviewed the provisions of this Agreement, fully understands the consequences thereof
and has assessed the respective advantages and disadvantages of entering into this undertaking. In light of the above, Consultant
represents and warrants that if Consultant's employment with the Company were terminated, Consultant could earn a living while
fully complying with the terms of this Agreement and that the restrictions contained in this Agreement are reasonable and necessary
to protect the Company's legitimate interests in its proprietary and confidential information.

 

4. Survival.
The terms of this Agreement survive Consultant's termination of employment for any reason for a period of one year. Wherever this
Agreement contemplates that Consultant will have an obligation or be subject to a restriction at or after the term of Consultant's
employment with the Company, Consultant agrees that that obligation or restriction will exist without regard to which party to
this Agreement terminates the employment relationship, and without regard to the reason (or lack thereof) for the termination of
the employment relationship. In the event that Consultant leaves the employment of the Company, Consultant hereby agrees that the
Company may notify Consultant's new employer (and any party with whom Consultant maintains a consulting relationship) of Consultant's
obligations under this Agreement.

 

5. Not an Employment
Agreement. This Agreement is not a contract for employment with the Company.

 

6. Entire Agreement;
Waiver and Amendment. With respect to the subject matter of this Agreement, this is the entire agreement between Consultant
and the Company, and supersedes all previous oral or written understandings or agreements between Consultant and the Company. No
waiver or modification of any provision of this Agreement shall be effective unless signed by both the Company and Consultant.

 

7. Governing
Law; Jurisdiction. This Agreement shall be governed by the laws of the State of Israel without giving effect to principles
of conflicts of law or choice of law that would cause the laws of any other jurisdiction to apply. Consultant consents to the exclusive
jurisdiction of any court of competent jurisdiction located in Israel and irrevocably agrees that all actions or proceedings relating
to this Agreement may be litigated in such courts. Consultant accepts, generally and unconditionally, the jurisdiction of the aforesaid
courts and waives any defense of forum non conveniens, and irrevocably agrees to be bound by any judgment rendered thereby in connection
with this Agreement.

 

    	 

    	 	

    

 

8. Severability.
If any provision of this Agreement is or is deemed to be invalid, illegal or unenforceable in any jurisdiction, such provision
shall be deemed amended to conform to applicable laws so as to be valid and enforceable and the remainder of this Agreement shall
remain in full force and effect. Consultant agrees that if all or any portion of a covenant is held unreasonable or unenforceable
by a court or agency having valid jurisdiction, Consultant will be bound by any lesser covenant subsumed within the terms of such
covenant, which lesser covenant imposes the maximum duty permitted by law, as if the resulting covenant were separately stated
in and made a part of this Agreement.

 

9. Remedies.
Consultant agrees that if Consultant engages in any activities prohibited by this Agreement or fails to take actions required by
this Agreement, irreparable harm to the Company will likely result, for which a remedy in the form of damages may not be adequate
or otherwise ascertainable. Consequently, the Company will be entitled to temporary, preliminary and permanent injunctive relief
against Consultant. This section will not limit any other legal or equitable remedies that the Company may have against Consultant
for violations of this Agreement.

 

10. Assignment.
This Agreement shall be binding upon, and inure to the benefit of, the Company and Consultant and their respective successors and
permitted assigns. The Company may assign this Agreement to any successor of the Company, including any successor of the Company
by sale of all or substantially all of the Company's assets. Consultant hereby consents to any such assignment. Any successor to
the Company is an intended third-party beneficiary of this Agreement. Consultant may not assign this Agreement.

 

IN WITNESS WHEREOF,
the Company and Consultant have entered into this Agreement as of the Effective Date set forth below.

 

	Prolor Biotech Ltd.	Consultant
	 	 
	 	 
	By: /s/ Shai Novik	/s/ Abraham Havron
	Name: Shai Novik	Abraham Havron
	Title:   President	May 9, 2012Exhibit 10.1

 

EMPLOYMENT
AGREEMENT

 

AGREEMENT (the “Agreement”), dated
as of May 8, 2012, by and between ZIOPHARM Oncology, Inc., a Delaware corporation, with executive offices at 1180 Avenue of the
Americas, Suite 1920, New York, New York, 10036 and principal operational offices at One First Avenue, Parris Building, #34 Navy
Yard Plaza, Boston, Massachusetts 02129 (the “Company”), and JASON AMELLO, presently
residing at 1700 Beacon Street, Newton, Massachusetts 02468 (the “Employee”).

 

WITNESSETH:

 

WHEREAS, the Company desires to employ Employee
as Executive Vice President and Chief Financial Officer of the Company, and Employee desires to serve the Company in that
capacity, upon the terms and subject to the conditions contained in this Agreement;

 

NOW, THEREFORE, in consideration
of the mutual covenants and agreements herein contained, the parties hereto agree as follows:

 

1.     Employment.

 

(a)          Services.
Employee will be employed by the Company as its Executive Vice President and Chief Financial Officer starting May 8, 2012, on the
terms set forth herein. Employee will report to the Chief Executive Officer of the Company. Employee shall have such duties, authorities
and responsibilities as are generally required of an Executive Vice President and Chief Financial Officer in companies that are
substantially similar to the Company (collectively the “Services”). Notwithstanding the foregoing, the Board of Directors
or Chief Executive Officer may expand, reduce or otherwise alter the duties of Employee in their sole discretion; provided, however,
that any such reduction or alteration of Employee’s duties may constitute “Good Reason” for Employee’s
resignation (as such term is defined in Section 8(d) hereof), thereby potentially entitling Employee to the severance and other
benefits provided pursuant to Section 9 of this Agreement.

 

(b)          Acceptance.
Employee hereby accepts such employment and agrees to render the Services.

 

2.     Employment
is At-Will.

 

Employee acknowledges that this Agreement
does not create any obligation on Employee’s part to work for the Company, or on the part of the Company to employ Employee,
for any fixed period of time. Employment is at-will and may be terminated at any time with or without cause and without providing
a reason for such termination.

 

    	 

    	 

    

 

3.     Best
Efforts; Place of Performance.

 

(a)          Employee
shall devote substantially all of his business time, attention and energies to the business and affairs of the Company and shall
use his best efforts to advance the best interests of the Company. Except as otherwise noted in this Agreement, during his employment
with the Company, Employee shall not, without the prior written consent of the Board of Directors of the Company, accept other
employment, perform services (including consulting services) for any other person or entity, or otherwise be actively engaged in
any other business activity, whether or not such business activity is pursued for gain, profit or other pecuniary advantage. However,
Employee may (i) make any passive investments where he is not obligated or required to, and shall not in fact, devote any managerial
efforts, (ii) subject to approval by the Board (which approval shall not be unreasonably withheld or withdrawn), participate in
charitable or community activities or in trade or professional organizations, or (iii) subject to approval by the Board (which
approval shall not be unreasonably withheld or withdrawn), hold directorships in public or private companies, except only that
the Board shall have the right to limit such services as a director or such participation in charitable or community activities
or in trade or professional organizations whenever the Board shall believe that the time spent on such activities infringes in
any material respect upon the time required by Employee for the performance of his duties under this Agreement or is otherwise
incompatible with those duties.

 

(b)          The
duties to be performed by Employee hereunder shall be performed primarily at the offices of the Company in Navy Yard Plaza, Boston,
Massachusetts, subject to reasonable travel requirements on behalf of the Company, or such other place as the Company may reasonably
designate. Employee acknowledges that the Company’s executive offices are located in New York, New York, that the Company
also maintains offices in the greater Washington D.C. area, and that Employee will be required to travel frequently to such other
offices of the Company.

 

4.     Compensation.
As full compensation for the performance by Employee of his duties under this Agreement, the Company shall pay Employee as follows:

 

(a)          Base
Salary. The Company shall pay Employee a salary (the “Base Salary”) equal to Three Hundred Fifty Thousand Dollars
($350,000.00) per annum, which Base Salary shall be subject to review by the Board of Directors or the Compensation Committee at
least annually. Payment shall be made in accordance with the regular payroll practices of the Company in effect from time to time.

 

(b)          Performance
Bonus. Employee shall be eligible to receive an annual performance-based bonus (the “Performance
Bonus”), based on Employee’s performance as determined by the Board or the Compensation Committee thereof for
each calendar year or partial calendar year during Employee’s employment under this Agreement. The
target amount of the Performance Bonus shall be equal to thirty-five percent (35%) of Employee’s
Base Salary, with the amount of the actual Performance Bonus payable for each year determined by the Board or Compensation Committee
in its sole discretion. The amount of the Performance Bonus so determined shall be payable within 30 days following December
31 of each calendar year during Employee’s employment under this Agreement; provided that Employee remains employed
by the Company through December 31 of the calendar year during which the Performance Bonus was earned. The amount of Performance
Bonus for fiscal 2012, if any, shall be determined pro rata based on the number of days in such calendar year on which the
Employee was employed by the Company. At the sole discretion of the Board of Directors of the Company, Employee may receive additional
bonuses (each, a “Discretionary Bonus”) based upon his performance on behalf of the Company and/or the Company’s
performance. Discretionary Bonus, if any, shall be payable either as a lump-sum payment or in installments, in such amounts, in
such manner and at such times as may be determined by the Board of Directors of the Company in its sole discretion.

 

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(c)          Equity
Incentive Awards. (i) The Company will grant Employee stock options (the “Stock Options”) to purchase Two Hundred
Thousand (200,000) shares of Common Stock of the Company vesting one third annually starting with the first anniversary of the
date of grant.  The date of grant of these Stock Options will be the starting date of Employee’s employment hereunder,
and the per share exercise price for such Stock Options will be the fair market value of a share of the Company’s common
stock determined as the closing price on the date of grant. Such Stock Options will be governed by the Company’s 2012 Equity
Incentive Plan (the “2012 Plan”) and a stock option agreement that will incorporate the related provisions contained
in this Agreement, which stock option agreement shall be entered into by Employee as a condition to the grant. Notwithstanding
anything set forth herein to the contrary, Employee understands that the 2012 Plan has not yet been approved by the Company’s
Stockholders and, in the event such approval is not effected by the Company at its annual meeting on June 20, 2012, the stock option
grant contemplated by this Section 4(c) shall be void; provided, however, in such event the Company shall, on or before July 31,
2012 enter into substantially comparable arrangements with Employee to ensure Employee receives the intended benefits of this Section
4(c) such that the benefits received by Employee are equal to what Employee would have received had the 2012 Plan been approved
on June 20, 2012 and the Stock Options been granted to Employee effective as of the starting date of Employee’s employment.

 

(ii) In addition
to the foregoing, the Company will issue Employee twenty five thousand (25,000) shares of restricted Common Stock of the Company
(the “Restricted Stock”) with such restrictions lapsing as to one third of such shares annually starting with the first
anniversary of the date of grant.  The date of grant of the Restricted Stock will be the starting date of Employee’s
employment hereunder and the per share value of the Restricted Stock will be the fair market value per share of the Company’s
Common Stock determined as the closing price on the date of grant. Such Restricted Stock will be governed by the Company’s
Amended and Restated 2003 Stock Option Plan, and a restricted stock agreement will incorporate the related provisions contained
in this Agreement, which restricted stock agreement shall be entered into by Employee as a condition to the award.

 

(d)          Withholding.
The Company shall withhold all applicable federal, state and local taxes and social security and such other amounts as may be required
by law from all amounts payable to Employee under this Agreement.

 

(e)          Expenses.
The Company shall reimburse Employee for all normal, usual and necessary expenses incurred by Employee in furtherance of the business
and affairs of the Company, including reasonable travel and entertainment, upon timely receipt by the Company of appropriate vouchers
or other proof of Employee’s expenditures and otherwise in accordance with any expense reimbursement policy as may from time
to time be adopted by the Company. The Company’s expense reimbursement policy generally requires that application for reimbursement
be made as soon as practicable after the expense is incurred, but in no event more than one year after the date of the expense.
Reimbursements are made by the Company no less frequently than monthly.

 

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(f)          Vacation
and Other Benefits. Employee shall be entitled to a vacation of four (4) weeks per annum (or pro rata portion thereof for any
partial year), in addition to holidays observed by the Company as they fall on scheduled days of work. Employee shall also be entitled
to the rights and benefits for which he shall be eligible under any benefit or other plans (including, without limitation, dental,
medical, medical reimbursement and hospital plans, pension plans, employee stock purchase plans, profit sharing plans, bonus plans
and other so-called “fringe” benefits) as the Company shall make available to other senior executives generally from
time to time.

 

(g)          Other
Benefits. The Company shall reimburse Employee for his reasonable legal licensing fees and related professional dues and memberships.
These expenses will be reimbursed in accordance with the expense reimbursement policy outlined in Section 5(e) above.

 

5.     Confidentiality;
Non-Compete. Employee acknowledges that all Company employees, including Employee, are required to sign the Invention, Non-Disclosure
and Non-Competition Agreement in the form attached hereto and incorporated herein as Exhibit A as a condition of employment.
If Employee declines to sign the Invention, Non-Disclosure and Non-Competition on or prior to the commencement of his employment
hereunder, this Agreement shall be terminated and of no further force and effect, ab initio, and no amount of Base Salary,
severance or other compensation or payment shall be due Employee hereunder.

 

6.     Assignment.
Neither this Agreement nor any of the rights and obligations of Employee under this Agreement may be assigned, transferred or otherwise
disposed of by Employee.

 

7.     Effect
of Termination. Employee’s employment hereunder may be terminated at any time, with or without cause, and without providing
a reason for such termination. This Agreement shall terminate upon termination of Employee’s employment, except that the
provisions of Sections 8 and 9 below shall survive any termination of this Agreement. The provisions of the Invention, Non-Disclosure
and Non-Competition Agreement shall also survive termination of this Agreement.

 

8.     Termination.
Employee’s employment hereunder shall be terminated upon Employee’s death and may be otherwise terminated as follows:

 

(a)    Employee’s
employment hereunder may be terminated by the Company for Cause. Any of the following actions by the Employee or conditions shall
constitute “Cause”:

 

(i)          The
willful or negligent failure, disregard or refusal by Employee to perform his duties hereunder (other than as a result of Disability)
for a period of ten (10) business days after Employee has been given written notice thereof;

 

(ii)         Any
act by Employee, that in the opinion of a majority of the Board of Directors materially injures the business or reputation of the
Company or any of its affiliates, including but not limited to, any officer, director, executive or shareholder of the Company
or any of its affiliates;

 

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(iii)        Misconduct
by Employee in respect of the duties or obligations of Employee under this Agreement, including, without limitation, insubordination
with respect to lawful directions received by Employee from the Chief Executive Officer of the Company for a period of ten (10)
business days after Employee has been given written notice thereof;

 

(iv)        Employee’s
conviction of any felony or a misdemeanor involving moral turpitude (including entry of a nolo contendere plea);

 

(v)         The
determination and affirmative vote by a majority of the Board of Directors specifying in particular the basis for its determination
after a reasonable and good faith investigation by the Board of Directors following a written allegation by another employee of
the Company, that Employee engaged in any conduct prohibited by law (including, without limitation, harassment that constitutes
age, sex or race discrimination);

 

(vi)        Any
misappropriation or embezzlement of the property of the Company or its affiliates (whether or not constituting a misdemeanor or
felony);

 

(vii)       Breach
by Employee of any of the provisions of the Company’s Invention, Non-Disclosure and Non-Competition Agreement, as determined
by a majority of the Board of Directors; and

 

(viii)      Breach
by Employee of any provision of this Agreement for a period of ten (10) business days after Employee has been given written notice
thereof.

 

(b)    Employee’s
employment hereunder may be terminated by the Company due to Employee’s Disability. For purposes of this Agreement, a termination
for “Disability” shall occur upon rendering of a written termination notice
by the Board of Directors after Employee has been unable to substantially perform his duties hereunder for 90 or more consecutive
days, or more than 120 days in any consecutive 12 month period, by reason of any physical or mental illness or injury. For purposes
of this Section 8(b), Employee agrees to make himself available and to cooperate in any reasonable examination by a reputable independent
physician retained by the Company.

 

(c)    Employee’s
employment hereunder may be terminated by the Company (or its successor) upon the occurrence of a Change of Control. For purposes
of this Agreement, “Change of Control” means (i) the acquisition, directly or indirectly, following the date hereof
by any person (as such term is defined in Section 13(d) and 14(d)(2) of the Securities Exchange Act of 1934, as amended), in one
transaction or a series of related transactions, of securities of the Company representing in excess of fifty percent (50%) or
more of the combined voting power of the Company’s then outstanding securities if such person (or his or its affiliate(s))
does not own in excess of 50% of such voting power on the date of this Agreement, or (ii) the future disposition by the Company
(whether direct or indirect, by sale of assets or stock, merger, consolidation or otherwise) of all or substantially all of its
assets in one transaction or series of related transactions (other than (i) a merger effected exclusively for the purpose of changing
the domicile of the Company, (ii) financing activities in the ordinary course in which the Company sells its equity securities,
or (iii) a transfer to a person or entity that, immediately after the transfer, is or is controlled by a person or entity that
controlled the Company before the transfer, within the meaning of Section 1.409A-3(i)(5)(vii)(B) of the Treasury regulations (the
“Treasury Regulations”) promulgated under Section 409A of the Internal Revenue Code of 1986, as amended (“Code
Section 409A”).

 

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(d)    Employee’s
employment hereunder may be terminated by the Employee for Good Reason, provided that such termination occurs within two (2) years
following the occurrence of an event of Good Reason (as defined below) and provided, further, that the Employee has provided the
Company with written notice of an event of Good Reason within ninety (90) days following the date of its occurrence and the Company
shall have failed to cure the event of Good Reason within thirty (30) days following the Company’s receipt of such notice
from Employee. For purposes of this Agreement, “Good Reason” shall mean any of the following: (i) the assignment to
the Employee of duties that constitute a material diminution in Employee’s authorities, duties, responsibilities, titles
or offices as described herein; (ii) any material reduction by the Company of the Employee’s duties and responsibilities;
(iii) any material reduction by the Company of the Employee’s base compensation payable hereunder; (iv) a material breach
by the Company of this Agreement that is not cured within 30 days after receipt by the Company of written notice of such breach;
and (v) a change in the geographic location of more than 50 miles from where the Employee is required to perform services for the
Company, from the Company’s offices at which he or she was principally employed except for required travel on the Company’s
business to an extent substantially consistent with his or her business travel obligations.

 

9.     Compensation
upon Termination.

 

(a)          If
Employee’s employment is terminated as a result of his death or Disability, as a result of his voluntary resignation other
than for Good Reason, or by the Company for Cause, the Company shall pay to Employee or to the Employee’s estate, as applicable,
his accrued Base Salary through the date of termination and expense reimbursement amounts for expenses incurred through the date
of termination. Employee shall have no further entitlement to any other compensation or benefits from the Company, except as provided
in Section 10(a) below regarding continuation of insurance coverage. Employee shall not be entitled to any bonus payable after
the date of termination. Any Stock Options that have vested as of the date of Employee’s termination shall remain exercisable
for a period of 90 days. Any Stock Options that have not vested as of the date of termination and any grants of restricted stock
the restrictions on which have not lapsed as of the date of termination, shall be deemed to have expired or be forfeited, as applicable,
as of such date.

 

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(b)          If
Employee’s employment is terminated by the Company without Cause, and other than by reason of death or Disability, or if
the Employee’s employment is terminated by the Employee for Good Reason, then the Company shall pay to Employee his Base
Salary through the date of his termination and any expense reimbursement amounts for expenses incurred through the date of termination.
In addition, if (i) Employee has executed and delivered to the Company, within 30 days after the effective date of that termination,
a written general release in a form satisfactory to the Company, whereby Employee shall release the Company from any and all potential
liabilities arising out of Employee’s employment with, or termination from employment from, the Company; and (ii) the rescission
period specified in that release has expired, the Company shall pay to Employee (x) a severance amount equal to 100% of Employee’s
then current annual Base Salary (the “Severance”), less applicable withholdings and deductions, which amounts shall
be payable in a single lump sum on the 60th day after the effective date of that termination, and (y) the target amount
of the Performance Bonus contemplated by Section 4(b) (i.e., thirty-five percent (35%) of Employee’s Base Salary) that would
have been payable for the calendar year in which termination of his employment occurs, which portion shall be determined pro
rata based on the number of days in such calendar year during which Employee was employed by the Company payable in a single
lump sum on the 60th day after the effective date of termination. For purposes of calculation of the Severance Benefits, Employee’s
Base Salary and Performance Bonus target amounts shall be calculated without giving effect to any reduction that would give rise
to Employee’s right to resign for Good Reason. Any Stock Options that have vested as of the date of Employee’s termination
shall remain exercisable for a period of 90 days. All unvested Stock Options and unvested awards of restricted Common Stock (“Restricted
Stock”) as of the date of Employee’s termination shall be deemed to have expired as of such date.

 

(c)          If
Employee’s employment is terminated by the Company (or its successor) without Cause or the Employee resigns for Good Reason,
in either case (A) within eighteen (18) months following the occurrence of a Change of Control or (B) within 90 days prior to and
in connection with the occurrence of a Change of Control, then in addition to the severance benefits provided under Section 9(b)
above, then all unvested Stock Options and unvested Restricted Stock held by Employee at the time that such termination occurs
shall be accelerated and deemed to have vested as of the termination date. Any Stock Options that have vested (or been deemed pursuant
to the immediately preceding sentence to have vested) as of the date of Employee’s termination shall remain outstanding and
exercisable until the earlier of (x) 90 days following the later of the date of Employee’s termination or date of the Change
of Control (unless Company options shall not generally be assumed or continued by the acquirer or continuing entity), or (y) the
date of exercise of such Stock Options, or (z) the date on which the original term of any such Stock Options expires (without regard
to the termination of Employee’s employment).

 

(d)          This
Section 9 sets forth the only obligations of the Company with respect to the termination of the Employee’s employment with
the Company, and the Employee acknowledges that, upon the termination of his employment, he shall not be entitled to any payments
or benefits which are not explicitly provided in Section 9.

 

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(e)          Amounts
payable to Employee pursuant to Sections 9(b) or 9(c) hereof shall only be paid following Employee’s separation from service
with the Company. The time for payment of amounts due following Employee’s separation from service pursuant to this Section
9 shall be determined in accordance with the Company’s regular payroll and bonus payment practices, subject to the provisions
of Code Section 409A and the Treasury Regulations. Payments for Performance Bonus, Discretionary Bonus or expense reimbursements
accrued with respect to periods of service completed prior to Employee’s separation from service, but unpaid at the time
of termination of employment, shall be due and payable at the same times as they otherwise would be due in accordance with the
Company’s regular bonus payment practices (i.e., Performance Bonus within 30 days following the end of the applicable calendar
year). Notwithstanding anything herein to the contrary, (i) if at the time of Employee’s termination of employment with the
Company the Company’s common stock is publicly traded (as determined under Code Section 409A), (ii) Employee is a “specified
employee” (as determined under Code Section 409A), and the deferral of the commencement of any payments or benefits otherwise
payable hereunder as a result of such termination of employment is necessary in order to prevent any accelerated or additional
tax under Code Section 409A, then the Company will defer the commencement of the payment of any such payments or benefits hereunder
(without any reduction in such payments or benefits ultimately paid or provided to Employee) until the date that is six months
following Employee’s termination of employment with the Company (or the earliest date as is permitted under Code Section
409A without any accelerated or additional tax); and (ii) if any other payments of money or other benefits due to Employee hereunder
could cause the application of an accelerated or additional tax under Code Section 409A, then such payments or other benefits shall
be deferred if deferral will make such payment or other benefits compliant under Code Section 409A, or otherwise such payment or
other benefits shall be restructured, to the extent possible, in a manner, determined by the Board, that is reasonably expected
not to cause such an accelerated or additional tax. For purposes of Code Section 409A, each payment made under this Agreement shall
be designated as a “separate payment” within the meaning of the Code Section 409A, and, to the extent required by Code
Section 409A, references herein to Employee’s “termination of employment” shall refer to Employee’s “separation
from service” (within the meaning of Code Section 409A) with the Company (as defined to include any affiliates required to
be taken into account for that definition of separation from service). To the extent any reimbursements or in-kind benefits due
to Employee under this Agreement constitute “deferred compensation” under Code Section 409A, any such reimbursements
or in-kind benefits shall be paid to Employee in a manner consistent with Section 1.409A-3(i)(1)(iv) of the Treasury Regulations.
The compensation (including without limitation separation benefits) provisions of this Agreement shall be interpreted, operated
and administered in a manner intended to comply with any applicable requirements of Code Section 409A, the Treasury Regulations,
and subsequent guidance issued under Code Section 409A.

 

10.  Effect
of Termination on Benefits.

 

(a)          If
Employee’s employment with the Company is terminated, Employee may elect to continue, and the Company shall continue to provide,
Employee’s existing medical and dental coverage under the Company’s medical and dental insurance plans, if any, for
a period of up to eighteen (18) months from the date of termination, with the entire cost of such medical and dental insurance
coverage from and after the date of termination shall be borne entirely by Employee; provided, however, that if Employee’s
employment is terminated by the Company (or its successor) without Cause or the Employee resigns for Good Reason, the Company shall
continue to pay its contributions for such medical and dental insurance coverage for the first twelve (12) months from the date
of termination.

 

(b)          Except
as otherwise specifically provided for in subsection (a) of this Section, or in Section 9 above, upon termination of Employee’s
employment, Employee shall have no further entitlement to any other compensation or benefits from the Company.

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11.  Miscellaneous.

 

(a)          This
Agreement and the documents and agreements referenced in this Agreement constitute the entire agreement and understanding between
the Company and Employee concerning the subject matter hereof and supersedes any previous agreement, oral, written or otherwise,
between the Company and Employee concerning the subject matter hereof. No modification, amendment, termination or waiver of this
Agreement shall be binding unless in writing and signed by Employee and a duly authorized officer of the Company.

 

(b)          Employee
represents that: (i) neither the execution or delivery of this Agreement nor the performance by Employee of his duties and other
obligations hereunder violate or will violate any statute, law, determination or award, or conflict with or constitute a default
or breach of any covenant or obligation under (whether immediately, upon the giving of notice or lapse of time or both) any prior
employment agreement, contract, or other instrument to which Employee is a party or by which he is bound; (ii) Employee will not
disclose to the Company any confidential or proprietary information of any other person or employer and will not bring to the Company
any property or documents of a confidential nature that belong to any other person or employer; and (iii) Employee does not have
in his possession any property belonging to another employer, whether in paper or electronic format.

(c)          Employee
represents that he has the full right, power and legal capacity to enter and deliver this Agreement and to perform his duties and
other obligations hereunder. This Agreement constitutes the legal, valid and binding obligation of Employee enforceable against
him in accordance with its terms. No approvals or consent of any person or entities are required for Employee to execute and deliver
this Agreement or perform his duties and other obligations hereunder.

 

(d)          Employee
understands, acknowledges and agrees that any violation by Employee of any of the terms of this Agreement may result in Employee’s
immediate termination.

 

(e)          The
failure of either party to insist upon the strict performance of any of the terms, conditions and provisions of this Agreement
shall not be construed as a waiver or relinquishment of future compliance therewith, and such terms, conditions and provisions
shall remain in full force and effect. No waiver of any term or condition of this Agreement on the part of either party shall be
effective for any purpose whatsoever unless such waiver is in writing and signed by such party.

 

(f)          This
Agreement is governed by and will be construed as a sealed instrument under and in accordance with the laws of the Commonwealth
of Massachusetts. Any action, suit, or other legal proceeding which is commenced to resolve any matter arising under or relating
to any provision of this Agreement shall be commenced only in a court of the Commonwealth of Massachusetts (or, if appropriate,
a federal court located within Massachusetts), and the Company and the Employee each consents to the jurisdiction of such a court.

 

    	9

    	 

    

 

(g)          In
the event any provision of this Agreement shall be held to be void, unlawful or unenforceable, all of the remaining provisions
shall nevertheless remain in full force and effect.

 

(h)          All
notices, requests, consents and other communications, required or permitted to be given hereunder, shall be in writing and shall
be delivered personally, by an overnight courier service or sent by registered or certified mail, postage prepaid, return receipt
requested, to the parties at the addresses set forth on the first page of this Agreement, and shall be deemed given when so delivered
personally or by overnight courier, or, if mailed, when deposited in the United States mail. Either party may designate another
address, for receipt of notices hereunder by giving notice to the other party in accordance with this paragraph (h).

 

(i)          The
section headings contained herein are for reference purposes only and shall not in any way affect the meaning or interpretation
of this Agreement.

 

(j)          This
Agreement may be executed in any number of counterparts, each of which shall constitute an original, but all of which together
shall constitute one and the same instrument.

 

(k)          Employee
hereby acknowledges receipt of a duplicate copy of this Agreement.

 

EMPLOYEE ACKNOWLEDGES THAT BEFORE SIGNING EMPLOYEE HAS READ
THIS AGREEMENT AND UNDERSTANDS ITS TERMS AND CONDITIONS.

 

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

 

	 	EMPLOYEE:
	 	 
	 	/s/ Jason Amello
	 	  Jason Amello
	 	 
	 	ZIOPHARM ONCOLOGY, INC.
	 	 
	 	By:	/s/ Jonathan Lewis
	 	 	Jonathan Lewis, M.D., Ph.D.
	 	 	 Chief Executive Officer

 

    	10

    	 

    

 

Exhibit A to Employment Agreement

 

INVENTION, NON-DISCLOSURE AND

NON-COMPETITION AGREEMENT

 

This Agreement is made this____ day of ______, 2012, between
ZIOPHARM Oncology, Inc., having an address at One First Avenue, Parris Building #34, Navy Yard Plaza, Boston MA 02129 (hereinafter
referred to as the "Company"), and Jason Amello, having an address at1700 Beacon Street, Newton,
MA 02468 (“EMPLOYEE”).

 

In consideration of the employment or the continued
employment of the Employee by the Company, the Company and the Employee agree as follows:

 

1.            Proprietary
Information

 

(a) The Employee agrees that all information, whether
or not in writing, of a private, secret or confidential nature concerning the Company's business, business relationships or financial
affairs (collectively, "Proprietary Information") is and shall be the exclusive property of the Company. By way of illustration,
but not limitation, Proprietary Information may include inventions, products, processes, methods, techniques, formulas, compositions,
compounds, projects, developments, plan, research data, clinical data, financial data, personnel data, computer programs, customer
and supplier lists, and contacts at or knowledge of customers or prospective customers of the Company. The Employee will not disclose
any Proprietary Information to any person or entity other than employees of the Company or use the same for any purposes (other
than in the performance of his/her duties as an employee of the Company) without written approval by an officer of the Company,
either during or after his/her employment with the Company, unless and until such Proprietary Information has become public knowledge
without fault by the Employee.

 

(b) The Employee agrees that all files, letters, memoranda,
reports, records, data, sketches, drawings, laboratory notebooks, program listings, or other written, photographic, or other tangible
material containing Proprietary Information, whether created by the Employee or others, which shall come into his/her custody or
possession, shall be and are the exclusive property of the Company to be used by the Employee only in the performance of his/her
duties for the Company. All such materials or copies thereof and all tangible property of the Company in the custody or possession
of the Employee shall be delivered to the Company, upon the earlier of (i) a request by the Company or (ii) termination of his/her
employment. After such delivery, the Employee shall not retain any such materials or copies thereof or any such tangible property.

 

(c) The Employee agrees that his/her obligation not
to disclose or to use information and materials of the types set forth in paragraphs (a) and (b) above, and his/her obligation
to return materials and tangible property, set forth in paragraph (b) above, also extends to such types of information, materials
and tangible property of customers of the Company or suppliers to the Company or other third parties who may have disclosed or
entrusted the same to the Company or the Employee.

 

2.            Developments

 

(a) The Employee will make full and prompt disclosure
to the Company of all inventions, improvements, discoveries, methods, developments, software, and works of authorship, whether
patentable or not, which are created, made, conceived, or reduced to practice by him/her or under his/her direction or jointly
with others during his/her employment by the Company whether or not during normal working hours or on the premises of the Company
(all of which are collectively referred to in this Agreement as "Developments").

 

    	A-1

    	 

    

 

(b) The Employee agrees to assign and does hereby
assign to the Company (or any person or entity designated by the Company) all his/her right, title and interest in and to all Developments
and all related patents, patent applications, copyrights and copyright applications. However, this paragraph 2(b) shall not apply
to Developments which do not relate to the present or planned business or research and development of the Company and which are
made and conceived by the Employee not during normal working hours, not on the Company's premises and not using the Company's tools,
devices, equipment or Proprietary Information. The Employee understands that, to the extent this Agreement shall be construed in
accordance with the law of any state which precludes a requirement in an employee agreement to assign certain classes of inventions
made by an employee, this paragraph 2(b) shall be interpreted not to apply to any invention which a court rules and/or the Company
agrees falls within such classes. The Employee also hereby waives all claims to moral rights in any Developments.

 

(c) The Employee agrees to cooperate fully with the
Company, both during and after his/her employment with the Company, with respect to the procurement, maintenance and enforcement
of copyrights, patents and other intellectual property rights (both in the United States and foreign countries) relating to Developments.
The Employee shall sign all papers, including, without limitation, copyright applications, patent applications, declarations, oaths,
formal assignments, assignments of priority rights, and powers of attorney, which the Company may deem necessary or desirable in
order to protect its rights and interest in any Development. The Employee further agrees that if the Company is unable, after reasonable
effort, to secure the signature of the Employee on any such papers, any executive officer of the Company shall be entitled to execute
any such papers as the agent and the attorney-in-fact of the Employee, and the Employee hereby irrevocably designates and appoints
each executive officer of the Company as his/her agent and attorney-in-fact to execute any such papers on his/her behalf, and to
take any and all actions as the Company may deem necessary or desirable in order to protect its rights and interests in any Development,
under the conditions described in this sentence.

 

3.            Non-competition

 

			(a) While the Employee is employed by the Company and for a period of one year after the termination or cessation of such employment
for any reason, the Employee will not directly or indirectly:

 

			(i) as an individual proprietor, partner, stockholder, officer, employee, director, joint venturer, investor, lender, consultant,
or in any other capacity whatsoever (other than as the holder of not more than one percent of the combined voting power of the
outstanding stock of a publicly held company), engage in the business of developing, designing, producing, marketing, selling or
rendering (or assisting any other person in developing, designing, producing, marketing, selling or rendering) oncology products
in the class of arsenicals, products in the phosphoramidic nitrogen mustard family and “mustard gas family,” anti-mitotics
with the same mechanism as that in indibulin, and DNA-based biotherapeutic products involving in vivo expression of effectors for
the treatment of cancer, or other products or product candidates that are in the same chemical family as or are otherwise substantially
similar to those that have been or are being developed, designed, produced, marketed, sold or rendered by the Company while the
Employee was employed by the Company; or

 

(ii) solicit, divert or take
away, or attempt to divert or to take away, the business or patronage of any of the clients, customers or accounts, or prospective
clients, customers or accounts, of the Company which were contacted, solicited or served by the Employee while employed by the
Company.

 

    	A-2

    	 

    

 

(b) If the Employee violates the
provisions of Section 3(a), the Employee shall continue to be bound by the restrictions set forth in Section 3(a) until a period
of one year has expired without any violation of such provisions.

 

4.            Non-Solicitation

 

			(a) While the Employee is employed by the company and for a period of two years after the termination or cessation of such
employment for any reason, the Employee will not directly or indirectly recruit, solicit or hire any employee of the Company, or
induce or attempt to induce any employee of the Company to terminate his/her employment with, or otherwise cease his/her relationship
with, the Company.

 

			(b) If the Employee violates the provisions of Section 4(a), the Employee shall continue to be bound by the restrictions set
forth in Section 4(a) until a period of two years has expired without any violation of such provisions.

 

5.            Other
Agreements

 

The Employee hereby represents that, except as the
Employee has disclosed in writing to the Company on Appendix A to this Agreement, the Employee is not bound by the terms of any
agreement with any previous employer or other party to refrain from using or disclosing any trade secret or confidential or proprietary
information in the course of his/her employment with the Company or to refrain from competing, directly or indirectly, with the
business of such previous employer or any other party. The Employee further represents that his/her performance of all the terms
of this Agreement and as an employee of the Company does not and will not breach any agreement to keep in confidence proprietary
information, knowledge or data acquired by the Employee in confidence or in trust prior to his/her employment with the Company,
and the Employee will not disclose to the Company or induce the Company to use any confidential or proprietary information or material
belonging to any previous employer or others.

 

6.            United
States Government Obligations

 

The Employee acknowledges that the Company from time
to time may have agreements with the other persons or with the United States Government, or agencies thereof, which impose obligations
or restrictions on the Company regarding inventions made during the course of work under such agreements or regarding the confidential
nature of such work. The Employee agrees to be bound by all such obligations and restrictions which are made known to the Employee
and to take all action necessary to discharge the obligations of the Company under such agreements.

 

7.            No
Employment Contract

 

The Employee understands that this Agreement does
not constitute a contract of employment and does not imply that his/her temporary employment will continue for any period of time.

 

8.            Miscellaneous

 

(a) The invalidity or unenforceability of any provision
of this Agreement shall not affect the validity or enforceability of any other provision of this Agreement.

 

(b) This Agreement supersedes all prior agreements,
written or oral, between the Employee and the Company relating to the subject matter of this Agreement.

 

    	A-3

    	 

    

 

(c) This Agreement may not be modified, changed or
discharged in whole or in part, except by an agreement in writing signed by the Employee and the Company. The Employee agrees that
any change or changes in his/her duties, salary or compensation after the signing of this Agreement shall not affect the validity
or scope of this Agreement.

 

(d) No delay or omission by the Company in exercising
any right under this Agreement will operate as a waiver of that or any other right. A waiver or consent given by the Company on
any one occasion is effective only in that instance and will not be construed as a bar to or waiver of any right on any other occasion.

 

(e) The Employee expressly consents to be bound by
the provisions of this Agreement for the benefit of the Company or any subsidiary or affiliate thereof to whose employ the Employee
may be transferred without the necessity that this Agreement be resigned at the time of such transfer.

 

(f) The restrictions contained in this Agreement are
necessary for the protection of the business and goodwill of the Company and are considered by the Employee to be reasonable for
such purpose. The Employee agrees that any breach of this Agreement is likely to cause the Company substantial and irrevocable
damage and therefore, in the event of any such breach, the Employee agrees that the Company, in addition to such other remedies
which may be available, shall be entitled to specific performance and other injunctive relief.

 

(g) If any restriction set forth in Sections 3 or
4 is found by any court of competent jurisdiction to be unenforceable because it extends for too long a period of time or over
too great a range of activities or in too broad a geographic area, it shall be interpreted to extend only over the maximum period
of time, range of activities or geographic area as to which it may be enforceable.

 

(h) This Agreement is governed by and will be construed
as a sealed instrument under and in accordance with the laws of the Commonwealth of Massachusetts. Any action, suit, or other legal
proceeding which is commenced to resolve any matter arising under or relating to any provision of this Agreement shall be commenced
only in a court of the Commonwealth of Massachusetts (or, if appropriate, a federal court located within Massachusetts), and the
Company and the Employee each consents to the jurisdiction of such a court.

 

Signature Page Follows.

 

    	A-4

    	 

    

 

THE EMPLOYEE ACKNOWLEDGES THAT HE/SHE HAS CAREFULLY READ THIS
AGREEMENT AND UNDERSTANDS AND AGREES TO ALL OF THE PROVISIONS IN THIS AGREEMENT.

 

ZIOPHARM ONCOLOGY, INC.

 

	Name:	 	 
	 	signature	 
	 	 
	Title:	 
	 	 
	Date:	 
	 	 
	Employee	 
	 	 
	 	 
	  Jason Amello	 
	 	 
	Date:	 

 

    	A-5

    	 

    

 

Appendix A

 

The Employee is bound by the post-employment obligations set
forth in the Agreement between Employee and Genzyme Corporation dated April 10, 2000 (the “Prior Agreement”). A complete
copy of the Prior Agreement has been provided to Company.

 

    	A-6

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