<SEC-DOCUMENT>0001144204-15-070350.txt : 20151210
<SEC-HEADER>0001144204-15-070350.hdr.sgml : 20151210
<ACCEPTANCE-DATETIME>20151210170030
ACCESSION NUMBER:		0001144204-15-070350
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20151204
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20151210
DATE AS OF CHANGE:		20151210

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Synthetic Biologics, Inc.
		CENTRAL INDEX KEY:			0000894158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				133808303
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12584
		FILM NUMBER:		151281452

	BUSINESS ADDRESS:	
		STREET 1:		617 DETROIT STREET, SUITE 100
		CITY:			ANN ARBOR
		STATE:			MI
		ZIP:			48104
		BUSINESS PHONE:		(734) 332-7800

	MAIL ADDRESS:	
		STREET 1:		155 GIBBS STREET
		STREET 2:		SUITE 412
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADEONA PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20081027

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PIPEX PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20061214

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SHEFFIELD PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19970730
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>v426642_8-k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K <BR>
CURRENT REPORT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Pursuant to Section 13 or 15(d)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>of the Securities Exchange Act of 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Date of Report (Date of earliest event reported):
December 4, 2015</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SYNTHETIC BIOLOGICS, INC.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact name of registrant as specified in
its charter)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 27.5pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 33%; border-bottom: black 1pt solid; padding-right: 0.8pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Nevada</FONT></TD>
    <TD STYLE="width: 1%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 32%; border-bottom: black 1pt solid; padding-right: 0.8pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">001-12584</FONT></TD>
    <TD STYLE="width: 1%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 33%; border-bottom: black 1pt solid; padding-right: 0.8pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">13-3808303</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">(State or other jurisdiction of incorporation)</FONT></TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">(Commission File No.)</FONT></TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">(IRS Employer Identification No.)</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 29.7pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>9605 Medical Center Drive, Suite 270</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Rockville, MD 20850</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Address of principal executive offices
and zip code)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>617 Detroit Street, Suite 100</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Ann Arbor, MI 48104</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Mailing Address and zip code)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Registrant&rsquo;s telephone number, including
area code:&nbsp;(734) 332-7800</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">N/A&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Former name or former address, if changed
since last report)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 29.7pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Check the appropriate box below if the
Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 29.7pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Written
communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</FONT></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0">&#9;&nbsp;&#9;&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Soliciting
material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</FONT></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0">&#9;&nbsp;&#9;&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</FONT></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0">&#9;&nbsp;&#9;&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</FONT></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 29.7pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 29.7pt"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 29.7pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 1in; padding-right: 0; padding-left: 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Item 1.01.</B></FONT></TD>
    <TD STYLE="padding-right: 0; padding-left: 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Entry into a Material Definitive Agreement.</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Synthetic Biologics, Inc. (the
&ldquo;Company&rdquo;) entered into an amendment, dated as of December 4, 2015 (the
&ldquo;Amendment&rdquo;),  to its Employment Agreement with Jeffrey Riley, the Company&rsquo;s
President and Chief Executive Officer, dated March 18, 2015, to increase Mr. Riley&rsquo;s
annual base salary to $550,000.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The foregoing summary description of the
Amendment does not purport to be complete and is subject to, and qualified in its entirety by reference to, the full text of such
document that is filed as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 1in; padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Item 5.02.</B></FONT></TD>
    <TD STYLE="padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">See Item 1.01 for a description of the Amendment.
The information set forth in Item 1.01 is hereby incorporated by reference into this Item 5.02.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt">In addition, on December 4, 2015, the Company&rsquo;s
Board of Directors (the &ldquo;Board&rdquo;) approved the following option grants for the Company&rsquo;s named executive officers:
Mr. Riley was granted an option to purchase 500,000 shares of the Company&rsquo;s common stock (the &ldquo;Common Stock&rdquo;);
and Steven A. Shallcross, the Company&rsquo;s Chief Financial Officer, was granted an option to purchase 100,000 shares of Common
Stock. These options have an exercise price equal to the fair market value of the Common Stock on the date of grant (December 4,
2015), expire in seven years and vest <FONT STYLE="font-family: Times New Roman, Times, Serif">monthly on a pro rata basis over
36 consecutive months.</FONT> Mr. Riley and Mr. Shallcross also each received a cash bonus pursuant to the terms of their respective
employment agreements.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt">The Board also approved the following compensation
for members of the Board who are not employees of the Company: increased the annual cash fee by $7,500 to $42,000 and granted options
to purchase 125,000 shares of Common Stock at an exercise price equal to the fair market value of the Common Stock on the date
of grant (December 4, 2015), which options expire in seven years and vest annually on a pro rata basis over a three year period,
with one-third of the options vesting on the grant date, one-third vesting on the one year anniversary of the grant date and the
remaining one-third vesting on the two year anniversary of the grant date.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt">The options granted to the officers and
directors were granted under the Company&rsquo;s 2010 Stock Incentive Plan and the related stock option agreement. The form of
stock option agreement is attached to this Current Report on Form 8-K as Exhibit 10.2 and is incorporated herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 1in; padding-right: 0; padding-left: 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Item 9.01</B></FONT></TD>
    <TD STYLE="padding-right: 0; padding-left: 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Financial Statements and Exhibits</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in; text-align: left">(d)</TD><TD STYLE="text-align: justify">Exhibits</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The following exhibits
are being filed as part of this Current Report on Form 8-K.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 18%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-align: center"><B>Exhibit</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-align: center"><B>Number</B></P></TD>
    <TD STYLE="width: 82%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0"><B>Description</B></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-align: center">10.1</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-align: center; text-indent: 0.5in"></P></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-align: justify">Amendment to Employment
Agreement by and between Synthetic Biologics, Inc. and Jeffrey Riley, dated as of December 4, 2015</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-align: justify"></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 1.6pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">10.2</FONT></TD>
    <TD STYLE="padding-right: 1.6pt; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Synthetic Biologics, Inc. Form of Option Agreement</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to the requirements of the Securities Exchange Act
of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.2pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Dated:&nbsp;&nbsp;December 10, 2015</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 0.2pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">SYNTHETIC BIOLOGICS, INC.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-right: 0.2pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">(Registrant)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 5%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 45%; padding-right: 0.8pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.2pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 0.2pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/ Jeffrey Riley</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.2pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.2pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Name: Jeffrey Riley</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.2pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.2pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Title: President and Chief Executive Officer</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>EXHIBIT INDEX</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 18%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-align: center"><B>Exhibit</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-align: center"><B>Number</B></P></TD>
    <TD STYLE="width: 82%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.6pt 0pt 0"><B>Description</B></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">10.1</FONT></TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Amendment to
    Employment Agreement by and between Synthetic Biologics, Inc. and Jeffrey Riley, dated as of December 4, 2015</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">10.2</FONT></TD>
    <TD STYLE="padding-right: 0.8pt; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Synthetic Biologics, Inc. Form of Option Agreement</FONT></TD></TR>
</TABLE>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>v426642_ex10-1.htm
<DESCRIPTION>EXHIBIT 10.1
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0; text-align: right"><B>Exhibit 10.1</B></P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>AMENDMENT TO EMPLOYMENT AGREEMENT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">This Amendment (this
&ldquo;<U>Amendment</U>&rdquo;) dated as of the 4<SUP>th</SUP> day of December, 2015 amends the Employment Agreement, dated March
18, 2015 (the &ldquo;<U>Agreement</U>&rdquo;) by and between Synthetic Biologics, Inc. (the &ldquo;<U>Company</U>&rdquo;) and Jeffrey
Riley (&ldquo;<U>Executive</U>&rdquo;). Capitalized terms used herein without definition shall have the meanings assigned in the
Agreement. &nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><B>WHEREAS</B>, the
Company desires to amend the Executive&rsquo;s base salary as set forth in the Agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><B>NOW THEREFORE</B>,
for the mutual promises contained herein and other good and valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, the parties hereto agree to amend the Agreement as follows:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 0.5in; text-align: justify; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 0.25in; text-align: justify; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="vertical-align: top">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B><U>Amendment</U></B>.<B> </B>Section
        4 of the Agreement is<B> </B>deleted and replaced with the following:</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&ldquo;4. <U>BASE SALARY</U></B>. The
        Company agrees to pay the Executive a base salary (the &ldquo;<U>Base Salary</U>&rdquo;) at an annual rate of $550,000, payable
        semi-monthly in accordance with the regular payroll practices of the Company. The Executive&rsquo;s Base Salary shall be subject
        to review and adjustment from time to time by the Board (or a committee thereof) in its sole discretion, but may not be decreased.
        The base salary as determined herein from time to time shall constitute &ldquo;Base Salary&rdquo; for purposes of this Agreement.&rdquo;</P></TD></TR>
</TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">2.&nbsp;&nbsp;&nbsp; <B><U>Severability</U></B>.
The provisions of this Amendment are severable and if any part or it is found to be unenforceable the other paragraphs shall remain
fully valid and enforceable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">3.&nbsp;&nbsp;&nbsp; <B><U>No Other Amendments;
Confirmation</U></B>. All other terms of the Agreement shall remain in full force and effect. The Agreement, as amended by this
Amendment, constitutes the entire agreement between the parties with respect to the subject matter thereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">4.&nbsp;&nbsp;&nbsp;<B> <U>Counterparts</U></B>.
This Amendment may be executed in one or more counterparts, each of which shall be deemed an original but both of which together
shall constitute one and the same instrument.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">5.&nbsp;&nbsp;&nbsp;<B> <U>Choice of
Law</U>. </B>This Amendment shall be construed and interpreted in accordance with the internal laws of the State of Delaware without
regard to its conflict of laws principles.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">[Signature page follows]</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>IN WITNESS WHEREOF</B>, the parties
hereto have executed this Amendment as of the day and year first written above.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-decoration: underline"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B><U>Company</U>:</B></FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>SYNTHETIC BIOLOGICS, INC.</B></FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; width: 50%">&nbsp;</TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD STYLE="vertical-align: top; width: 45%; border-bottom: black 1pt solid">/s/ Steven
    A. Shallcross</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name:</FONT></TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">Steven A. Shallcross</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD>Title:</TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">Chief Financial Officer</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif">Executive:</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; border-bottom: black 1pt solid">/s/ Jeffrey Riley</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>JEFFREY RILEY</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3in; text-align: justify; text-indent: 0.5in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>



<P STYLE="margin: 0"></P>

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<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>3
<FILENAME>v426642_ex10-2.htm
<DESCRIPTION>EXHIBIT 10.2
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0; text-align: right"><B>Exhibit 10.2</B></P>

<P STYLE="margin-top: 0; text-align: center; margin-bottom: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.25in"><IMG SRC="image_001.jpg" ALT="Synthetic Biologics - white background-cropped" STYLE="height: 42px; width: 142px"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.25in"><B>FORM OF STOCK
OPTION GRANT NOTICE</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.25in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Synthetic Biologics, Inc.(the &ldquo;<B><I>Company</I></B>&rdquo;),
pursuant to its 2010 Stock Incentive Plan (the &ldquo;<B><I>Plan</I></B>&rdquo;), hereby grants to Optionholder an option to purchase
the number of shares of the Company&rsquo;s Common Stock set forth below. This option is subject to all terms and conditions as
set forth herein and in the related Option Agreement, the Plan and the Notice of Exercise, each of which are attached hereto and
incorporated herein in their entirety.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-indent: 0in; text-align: justify">Optionholder:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-indent: 0in; text-align: justify">Date
of Grant:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-indent: 0in; text-align: justify">Vesting
Commencement Date:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-indent: 0in; text-align: justify">Number
of Shares Subject to Option:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-indent: 0in; text-align: justify">Exercise
Price (Per Share):</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-indent: 0in; text-align: justify">Total
Exercise Price:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-indent: 0in; text-align: justify">Expiration
Date:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<tr style="vertical-align: top">
    <TD STYLE="width: 15%; padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif"><b>Type of Grant:</b></font></td>
    <TD STYLE="width: 25%; padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT> <FONT STYLE="font: 10pt Times New Roman, Times, Serif">Incentive
Stock Option<SUP>1</SUP></FONT></td>
    <TD STYLE="width: 60%; padding-right: 0; padding-left: 0"><font style="font: 10pt Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></font><font style="font: 10pt Times New Roman, Times, Serif"> Non-statutory Stock Option</font></td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif"><b>Vesting Schedule:</b></font></td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif"><b>Payment:</b></font></td>
    <TD COLSPAN="2" STYLE="padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">By one or a combination of the following items (described in the Option Agreement):</FONT></td></tr>
</table>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif">By cash or check</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; color: windowtext">&middot;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif">By delivery of already owned shares </FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; color: windowtext">&middot;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif">By a &ldquo;cashless exercise&rdquo; </FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Additional Terms/Acknowledgements:</B>
The undersigned Optionholder acknowledges receipt of, and understands and agrees to, this Stock Option Grant Notice, the related
Option Agreement and the Plan. Optionholder further acknowledges that as of the Date of Grant, this Stock Option Grant Notice,
the Option Agreement and the Plan set forth the entire understanding between Optionholder and the Company regarding the acquisition
of stock in the Company referred to herein and supersede all prior oral and written agreements on that subject.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<TABLE CELLSPACING="1" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td colspan="2"><font style="font-family: Times New Roman, Times, Serif"><b>SYNTHETIC BIOLOGICS, INC.</b></font></td>
    <TD>&nbsp;</td>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>OPTIONHOLDER:</B></FONT></td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="width: 5%">&nbsp;</td>
    <TD STYLE="width: 35%">&nbsp;</td>
    <TD STYLE="width: 5%">&nbsp;</td>
    <TD STYLE="width: 5%">&nbsp;</td>
    <TD STYLE="width: 35%; padding-left: 0.5in">&nbsp;</td>
    <TD STYLE="width: 15%">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD><font style="font-size: 10pt">By:</font></td>
    <TD STYLE="border-bottom: Black 1pt solid; padding-bottom: 1pt">&nbsp;</td>
    <TD>&nbsp;</td>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding-bottom: 1pt">&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD><font style="font-size: 10pt">Name:</font></td>
    <TD></td>
    <TD>&nbsp;</td>
    <TD><font style="font-family: Times New Roman, Times, Serif">Name:</font></td>
    <TD>&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>&nbsp;</td>
    <TD>&nbsp;</td>
    <TD>&nbsp;</td>
    <TD>&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD><font style="font-size: 10pt">Date:</font></td>
    <TD STYLE="border-bottom: Black 1pt solid; padding-bottom: 1pt">&nbsp;</td>
    <TD>&nbsp;</td>
    <TD><font style="font-family: Times New Roman, Times, Serif">Date:</font></td>
    <TD STYLE="border-bottom: Black 1pt solid; padding-bottom: 1pt">&nbsp;</td>
    <TD>&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>ATTACHMENTS</B>: Option Agreement, 2010
Stock Incentive Plan and Notice of Exercise</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;&nbsp;</P>
<HR ALIGN="LEFT" SIZE="1" STYLE="width: 33%">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><SUP>1</SUP></FONT>
<FONT STYLE="font-family: Times New Roman, Times, Serif">If this is an Incentive Stock Option, it (plus other outstanding Incentive
Stock Options) cannot be first <I>exercisable</I> for more than $100,000 in value (measured by exercise price) in any calendar
year. Any excess over $100,000 is a Non-statutory Stock Option.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><IMG SRC="image_001.jpg" ALT=""></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM OF OPTION AGREEMENT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(INCENTIVE STOCK OPTION OR NON-STATUTORY
STOCK OPTION)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to your Stock Option Grant Notice
<I>(&quot;<B>Grant Notice</B>&quot;) </I>and this Option Agreement, Synthetic Biologics, Inc. (the <I>&quot;<B>Company</B>&quot;)
</I>has granted you an option under its 2010 Stock Incentive Plan (the <I>&quot;<B>Plan</B>&quot;) </I>to purchase the number of
shares of the Company's Common Stock indicated in your Grant Notice at the exercise price indicated in your Grant Notice. Defined
terms not explicitly defined in this Option Agreement but defined in the Plan shall have the same definitions as in the Plan.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The details of your option are as
follows:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 2.6pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">1.</TD><TD STYLE="text-align: justify"><B>VESTING</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">Subject to the limitations contained
herein, your option will vest as provided in your Grant Notice, provided that vesting will cease upon the termination of your employment
or consulting arrangement, as applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">2.</TD><TD STYLE="text-align: justify"><FONT STYLE="color: windowtext"><B>NUMBER OF SHARES AND
EXERCISE PRICE</B>.</FONT></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">The number of shares of common
stock subject to your option and your exercise price per share referenced in your Grant Notice may be adjusted from time to time
for certain events, including such as stock dividends, split ups, mergers, and the other events specified in the Plan.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">3.</TD><TD STYLE="text-align: justify"><B>METHOD OF PAYMENT</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">Payment of the exercise price
is due in full upon exercise of all or any part of your option. You may elect to make payment of the exercise price in cash or
by check or by delivery to the Company of certificates representing shares of outstanding common stock of the Company already owned
by you that are owned free and clear of any liens, claims, encumbrances or security interests together with stock powers duly executed
and with signature guaranteed. In addition, you may make payment through a &ldquo;cashless exercise&rdquo; such that without the
payment of any funds, the undersigned may exercise the Option and receive the net number of shares equal to (x) the number of shares
as to which the Option is being exercised, multiplied by (y) a fraction, the numerator of which is the Fair Market Value per share
(on such date as is determined by the Administrator) less the Exercise Price Per Share, and the denominator of which is such Fair
Market Value Per Share (the number of net Shares to be received shall be rounded down to the nearest whole number of In the event
payment is made by delivery of such shares, said shares shall be deemed to have a per share value equal to the per share market
value of the shares on the date of exercise. &#9; Notwithstanding the foregoing, you may not exercise your option by tender to
the Company of common stock to the extent such tender would violate the provisions of any law, regulation or agreement restricting
the redemption of the Company's stock. <FONT STYLE="color: windowtext"><B></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><FONT STYLE="color: windowtext"><B>&nbsp;</B></FONT>&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">4.</TD><TD STYLE="text-align: justify"><FONT STYLE="color: windowtext"><B>WHOLE SHARES</B>. </FONT></TD>
</TR></TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">You may exercise your option
only for whole shares of common stock.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">5.</TD><TD STYLE="text-align: justify"><B>SECURITIES LAW COMPLIANCE</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">Notwithstanding anything to the
contrary contained herein, you may not exercise your option unless the shares of common stock issuable upon such exercise are then
registered under the Securities Act or, if such shares of common stock are not then so registered, the Company has determined that
such exercise and issuance would be exempt from the registration requirements of the Securities Act. The exercise of your option
also must comply with other applicable laws and regulations governing your option, and you may not exercise your option if the
Company determines that such exercise would not be in material compliance with such laws and regulations.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">6.</TD><TD STYLE="text-align: justify"><B>TERM</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">You may not exercise your option
before the commencement or after the expiration of its term. The term of your option commences on the Date of Grant and unless
otherwise specified in the Grant Notice expires upon the earliest of:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 36pt"></TD><TD STYLE="width: 37.25pt">(a)</TD><TD STYLE="text-align: justify">Immediately upon the termination of your employment or consulting arrangement unless termination
is effected by the Company without cause or by reason of your death or disability, in which case the provisions set forth in Section
10 Termination below shall apply (see Section 10. Termination);</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 36pt"></TD><TD STYLE="width: 37.25pt; text-align: left">(b)</TD><TD STYLE="text-align: justify">The Expiration Date indicated in your Grant Notice; or</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.35pt 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 36pt"></TD><TD STYLE="width: 37.25pt; text-align: left">(c)</TD><TD STYLE="text-align: justify">The day before the tenth (10<SUP>th</SUP>)<I> </I>anniversary
of the Date of Grant.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.35pt 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 40.5pt; text-align: justify">If your option is an Incentive
Stock Option, note that to obtain the federal income tax advantages associated with an Incentive Stock Option, the Code requires
that at all times beginning on the date of grant of your option and ending on the day three (3) months before the date of your
option's exercise, you must be an employee of the Company or an Affiliate, except in the event of your death or Disability.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 40.5pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">7.</TD><TD STYLE="text-align: justify"><B>EXERCISE</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(a)&#9;You may exercise the vested
portion of your option during its term by delivering a Notice of Exercise (in a form designated by the Company) together with the
exercise price to the Vice President of Finance of the Company, or to such other person as the Company may designate, during regular
business hours, together with such additional documents as the Company may then require. Each election to exercise this option
shall be in writing, signed by you, and delivered or mailed to the Vice President of Finance of the Company at its principal office,
617 Detroit Street, Suite 100, Ann Arbor, MI 48104. In the event an option is exercised by the executor or administrator of your
estate, or by the person or person to whom the option has been transferred by your will or the applicable laws of descent and distribution,
the Company shall be under no obligation to deliver stock thereunder unless and until the Company is satisfied that the person
or person exercising the option is or are your duly appointed executor or administrator or the person to whom the option has been
transferred by your will or by the applicable laws of descent and distribution.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(b)&#9;By exercising your option
you agree that, as a condition to any exercise of your option, the Company may require you to enter into an arrangement providing
for the payment by you to the Company of any tax withholding obligation of the Company arising by reason of (1) the exercise of
your option, (2) the lapse of any substantial risk of forfeiture to which the shares of Common Stock are subject at the time of
exercise, or (3) the disposition of shares of Common Stock acquired upon such exercise.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(c)&#9;If your option is an Incentive
Stock Option, by exercising your option you agree that you will notify the Company in writing within fifteen (15) days after the
date of any disposition of any of the shares of the Common Stock issued upon exercise of your option that occurs within two (2)
years after the date of your option grant or within one (1) year after such shares of Common Stock are transferred upon exercise
of your option.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">8.</TD><TD STYLE="text-align: justify"><B>PAYMENT</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(a)&#9;Payment in full by a certified
or bank check should be made for all the shares of which your option is exercised at the time of such exercise, and no shares shall
be delivered until such payment is made.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(b)&#9;Alternatively, payment
may be made by delivering to the Company shares of outstanding Common Stock of the Company together with stock powers duly executed
and with signature guaranteed. In the event payment is made in whole or in part by such shares, said shares shall be deemed to
have a per share value equal to the closing price of the shares on the last trading day immediately preceding the date the shares
are then being issued.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(c)&#9;The Company shall not
be obligated to deliver any stock unless and until: (i) all applicable Federal and state laws and regulations have been complied
with; and (ii) the shares to be delivered have been listed, or authorized to be added to the list by the applicable exchange where
they are listed (currently NYSEAMEX); and all legal matters in connection with the issuance and delivery of the shares have been
approved by counsel for the Company. You shall have no rights as a shareholder until the stock is actually delivered to you.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">9.</TD><TD STYLE="text-align: justify"><B>TRANSFERABILITY</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(a) &#9;If your option is an
Incentive Stock Option, your option is not transferable, except by will or by the laws of descent and distribution, and is exercisable
during your life only by you. Notwithstanding the foregoing, by delivering written notice to the Company, in a form satisfactory
to the Company, you may designate a third party who, in the event of your death, shall thereafter be entitled to exercise your
option.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(b) &#9;If your option is a Non-statutory
Stock Option, your option is not transferable, except (i) by will or by the laws of descent and distribution, (ii) with the prior
written approval of the Company, by instrument to an inter vivos or testamentary trust, in a form accepted by the Company, in which
the option is to be passed to beneficiaries upon the death of the trustor (settlor) and (iii) with the prior written approval of
the Company, by gift, in a form accepted by the Company, to a permitted transferee under Rule 701 of the Securities Act.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">10.</TD><TD STYLE="text-align: justify"><B>TERMINATION.</B></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(a)&#9;If your employment terminates
any reason not listed below, your option shall terminate immediately.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(b)&#9;If your employment is
terminated by the Company without cause, your option shall terminate on the ninetieth (90<SUP>th</SUP>) day after such termination
and you may exercise your option prior to such time but only to the extent to which you were entitled on the date of termination.
Nothing herein shall be construed as extending the exercisability of your option to a date that is after the expiration date of
the option set forth in this Option Agreement or a date that is more than ten (10) years after your option is granted.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(c)&#9;If your employment is
terminated because of your disability, your option shall terminate one (1) year after such termination and you may exercise your
option prior to such time but only to the extent to which you were entitled on the date of such termination. Nothing herein shall
be construed as extending the exercisability of your option to a date that is after the expiration date of the option set forth
in this Option Agreement or a date that is more than ten (10) years after the date your option is granted.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(d)&#9;If your employment is
terminated as a result of your death, your option shall terminate one (1) year after the anniversary of your death, and your executor,
administrator or other legal representative of your estate or the person or persons to whom your rights under your option shall
pass by will or the laws of descent and distribution may exercise your option prior to such time but only to the extent to which
you were entitled on the date of termination. Nothing herein shall be construed as extending the exercisability of your option
to a date to a date that is after the expiration date of the option set forth in this Option Agreement or more than ten (10) years
after the date your option is granted.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">11.</TD><TD STYLE="text-align: justify"><B>OPTION NOT A SERVICE CONTRACT</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">Your option is not an employment
or service contract, and nothing in your option shall be deemed to create in any way whatsoever any obligation on your part to
continue in the employ of the Company or an affiliate, or of the Company or an affiliate to continue your employment. In addition,
nothing in your option shall obligate the Company or an affiliate, their respective stockholders, Boards of Directors, officers
or employees to continue any relationship that you might have as a Director or consultant for the Company or an affiliate.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">12.</TD><TD STYLE="text-align: justify"><B>WITHHOLDING OBLIGATIONS</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(a) &#9;At the time you exercise
your option, in whole or in part, or at any time thereafter as requested by the Company, you hereby authorize withholding from
payroll and any other amounts payable to you, and otherwise agree to make adequate provision for any sums required to satisfy the
federal, state, local and foreign tax withholding obligations of the Company or an affiliate, if any, which arise in connection
with the exercise of your option.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(b) &#9;Upon your request and
subject to approval by the Company, in its sole discretion, and compliance with any applicable legal conditions or restrictions,
the Company may withhold from fully vested shares of Common Stock otherwise issuable to you upon the exercise of your option a
number of whole shares of Common Stock having a fair market value, determined by the Company as of the date of exercise based on
the closing price of the shares on the last trading day immediately preceding the date the shares are then being issued , not in
excess of the minimum amount of tax required to be withheld by law (or such lower amount as may be necessary to avoid classification
of your option as a liability for financial accounting purposes). If the date of determination of any tax withholding obligation
is deferred to a date later than the date of exercise of your option, share withholding pursuant to the preceding sentence shall
not be permitted unless you make a proper and timely election under Section 83(b) of the Code, covering the aggregate number of
shares of Common Stock acquired upon such exercise with respect to which such determination is otherwise deferred, to accelerate
the determination of such tax withholding obligation to the date of exercise of your option. Notwithstanding the filing of such
election, shares of Common Stock shall be withheld solely from fully vested shares of Common Stock determined as of the date of
exercise of your option that are otherwise issuable to you upon such exercise. Any adverse consequences to you arising in connection
with such share withholding procedure shall be your sole responsibility.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">(c) &#9;You may not exercise
your option unless the tax withholding obligations of the Company and/or any affiliate are satisfied. Accordingly, you may not
be able to exercise your option when desired even though your option is vested, and the Company shall have no obligation to issue
a certificate for such shares of Common Stock or release such shares of Common Stock from any escrow provided for herein unless
such obligations are satisfied.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">13.</TD><TD STYLE="text-align: justify"><B>TAX CONSEQUENCES</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 36.7pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">You hereby agree that the Company
does not have a duty to design or administer the Plan or its other compensation programs in a manner that minimizes your tax liabilities.
You shall not make any claim against the Company, or any of its Officers, Directors, Employees or Affiliates related to tax liabilities
arising from your option or your other compensation. In particular, you acknowledge that this option is exempt from Section 409A
of the Code only if the exercise price per share specified in the Grant Notice is at least equal to the Fair Market Value per share
of the Common Stock on the Date of Grant and there is no other impermissible deferral of compensation associated with the option.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">14.</TD><TD STYLE="text-align: justify"><B>NOTICES</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">Any notices provided for in your
option or the Plan shall be given in writing and shall be deemed effectively given upon receipt or, in the case of notices delivered
by mail by the Company to you, five (5) days after deposit in the United States mail, postage prepaid, addressed to you at the
last address you provided to the Company.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">15.</TD><TD STYLE="text-align: justify"><B>GOVERNING PLAN DOCUMENT</B>.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">Your option is subject to all
the provisions of the Plan, the provisions of which are hereby made a part of your option, and is further subject to all interpretations,
amendments, rules and regulations, which may from time to time be promulgated and adopted pursuant to the Plan. In the event of
any conflict between the provisions of your option and those of the Plan, the provisions of the Plan shall control.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">16<B>.</B></TD><TD STYLE="text-align: justify"><B>RIGHTS OF OPTIONEE.</B></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">This Option Agreement does not
entitle you to any voting rights or, except for the foregoing notice provisions, any other rights as a shareholder of the Company.
No dividends are payable or will accrue on your option or the Shares purchasable under this Option Agreement until, and except
to the extent that, your option are exercised. Upon the surrender of your option and payment of the Exercise Price as provided
above, the person or entity entitled to receive the shares of the Common Stock issuable upon such exercise shall be treated for
all purposes as the record holder of such shares as of the close of business on the date of the surrender of your option for exercise
as provided above. Upon the exercise of your option, you shall have all of the rights of a shareholder in the Company.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">17<B>.</B></TD><TD STYLE="text-align: justify"><B>GOVERNING LAW.</B></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">This Option Agreement shall be
governed by, construed and enforced in accordance with the laws of the State of Michigan without giving effect to its principles
governing conflicts of law.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

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    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><IMG SRC="image_001.jpg" ALT="">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>NOTICE OF EXERCISE </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 298pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">Date of Exercise:_____________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25pt">To Whom It May Concern:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.1pt">This constitutes notice under my stock option that
I elect to purchase the number of shares for the price set forth below.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.1pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.1pt"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%; padding-right: 0; padding-left: 0">&nbsp;</TD>
    <TD NOWRAP STYLE="width: 20%; padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Type of option (check one):</FONT></TD>
    <TD STYLE="width: 25%; padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Incentive </FONT><FONT STYLE="font: 10pt Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="width: 25%; padding-right: 0; padding-left: 0; text-decoration: none"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Non-statutory </FONT><FONT STYLE="font: 10pt Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="width: 20%; padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.1pt"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 40.5pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<tr style="vertical-align: top">
    <TD STYLE="width: 10%; padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="width: 25%; padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">Stock option dated: </font></td>
    <TD STYLE="width: 1%; padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></td>
    <TD STYLE="border-bottom: Black 1pt solid; width: 10%">&nbsp;</TD>
    <TD STYLE="width: 54%; padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">&nbsp;</font></td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">Number of shares as to which </font></td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">option is exercised: </font></td>
    <TD STYLE="padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></td>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">&nbsp;</font></td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">Certificates to be issued in name of: </font></td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">Total exercise price: </font></td>
    <TD STYLE="padding-right: 0; padding-left: 0; text-decoration: none"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">$</FONT></td>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">Cash payment delivered herewith: </font></td>
    <TD STYLE="padding-right: 0; padding-left: 0; text-decoration: none"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">$</FONT></td>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">Value of ________________</font></td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD NOWRAP STYLE="padding-right: 0; padding-left: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">shares of Synthetic Biologics,
Inc.<SUP>2</SUP>: </FONT></td>
    <TD STYLE="padding-right: 0; padding-left: 0; text-decoration: none"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">$</FONT></td>
    <TD STYLE="border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">&nbsp;</font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Number of Shares To Be Received Based on
Cashless Exercise _______________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">By this exercise, I agree: (i) to provide
such additional documents as you may require pursuant to the terms of the 2010 Stock Incentive Plan; (ii) to provide for the payment
by me to you (in the manner designated by you) of your withholding obligation, if any, relating to the exercise of this option;
and (iii) if this exercise relates to an incentive stock option, to notify you in writing within fifteen (15) days after the date
of any disposition of any of the shares of Common Stock issued upon exercise of this option that occurs within two (2) years after
the date of grant of this option or within one (1) year after such shares of Common Stock are issued upon exercise of this option.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<tr style="vertical-align: top">
    <TD STYLE="width: 55%; padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="width: 40%; padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">Sincerely,</font></td>
    <TD STYLE="width: 5%; padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0; border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</TD></TR>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">(Signature)</font></td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0; border-bottom: Black 1pt solid">&nbsp;</TD>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</TD></TR>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td>
    <TD STYLE="padding-right: 0; padding-left: 0"><font style="font: 10pt Times New Roman, Times, Serif">(Print Name)</font></td>
    <TD STYLE="padding-right: 0; padding-left: 0">&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>
<HR ALIGN="LEFT" SIZE="1" STYLE="width: 33%">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><SUP>2</SUP></FONT>
<FONT STYLE="font-family: Times New Roman, Times, Serif">Shares must be valued in accordance with the terms of the option being
exercised, and must be owned free and clear of any liens, claims, encumbrances or security interests. Certificates must be endorsed
or accompanied by an executed assignment separate from certificate.</FONT></P>



<P STYLE="margin-top: 0; text-align: center; margin-bottom: 0"></P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
