<SEC-DOCUMENT>0001213900-22-007350.txt : 20220214
<SEC-HEADER>0001213900-22-007350.hdr.sgml : 20220214
<ACCEPTANCE-DATETIME>20220214131018
ACCESSION NUMBER:		0001213900-22-007350
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20220214
DATE AS OF CHANGE:		20220214
GROUP MEMBERS:		JAMES L.L. TULLIS
GROUP MEMBERS:		TULLIS DICKERSON PARTNERS III, L.L.C.
GROUP MEMBERS:		TULLIS GROWTH FUND II, L.P.
GROUP MEMBERS:		TULLIS GROWTH FUND, L.P.
GROUP MEMBERS:		TULLIS-GROWTH PARTNERS II, L.L.C.
GROUP MEMBERS:		TULLIS-GROWTH PARTNERS, L.L.C.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EXAGEN INC.
		CENTRAL INDEX KEY:			0001274737
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91300
		FILM NUMBER:		22628648

	BUSINESS ADDRESS:	
		STREET 1:		1261 LIBERTY WAY
		CITY:			VISTA
		STATE:			CA
		ZIP:			92081
		BUSINESS PHONE:		(760) 560-1501

	MAIL ADDRESS:	
		STREET 1:		1261 LIBERTY WAY
		CITY:			VISTA
		STATE:			CA
		ZIP:			92081

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EXAGEN DIAGNOSTICS INC
		DATE OF NAME CHANGE:	20031230

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TULLIS DICKERSON CAPITAL FOCUS III, L.P.
		CENTRAL INDEX KEY:			0001144359
		IRS NUMBER:				000000000

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		ONE GREENWICH PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
		BUSINESS PHONE:		2036298700

	MAIL ADDRESS:	
		STREET 1:		ONE GREENWICH PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TULLIS DICKERSON CAPITAL FOCUS III LP
		DATE OF NAME CHANGE:	20010706
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>ea155594-13ga2tullis_exagen.htm
<DESCRIPTION>AMENDMENT NO. 2 TO SCHEDULE 13G
<TEXT>
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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"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 12pt; margin-bottom: 3pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

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

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    <TD STYLE="text-align: center; width: 23%">&nbsp;</TD>
    <TD STYLE="width: 54%; text-align: center"><FONT STYLE="font-size: 12pt"><B>UNITED STATES</B></FONT></TD>
    <TD STYLE="text-align: center; width: 23%"><FONT STYLE="font-size: 12pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 12pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 12pt"><B>SECURITIES AND EXCHANGE COMMISSION</B></FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt"><B>Washington, D.C. 20549</B></FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">&nbsp;</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>SCHEDULE 13G</B></FONT></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">Under the Securities Exchange Act of 1934<BR>
(Amendment No.&nbsp;&nbsp;2)*</P>

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

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: black 1.5pt solid"><B>Exagen,
Inc.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Name of Issuer)</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; border-bottom: black 1.5pt solid">Common shares, par value $0.001 per share</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Title of Class of Securities)</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; border-bottom: black 1.5pt solid">30068X103</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(CUSIP Number)</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; border-bottom: black 1.5pt solid">December 31,
2021</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Date of Event Which Requires Filing of
this statement)</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; text-indent: 0.5in; text-align: left; margin-top: 0pt; margin-right: 0; margin-bottom: 0pt">Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="padding: 0; width: 10%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD>
    <TD STYLE="padding: 0; width: 90%"><FONT STYLE="font-size: 10pt">Rule 13d-1(b)</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;</FONT></TD>
    <TD STYLE="padding: 0"><FONT STYLE="font-size: 10pt">Rule 13d-1(c)</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9746;</FONT></TD>
    <TD STYLE="padding: 0"><FONT STYLE="font-size: 10pt">Rule 13d-1(d)</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; text-indent: 0.5in; text-align: left; margin-top: 0pt; margin-right: 0; margin-bottom: 0pt">*The remainder of this cover page
shall be filled out for a reporting person&rsquo;s initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-indent: 0.5in; text-align: left; margin-top: 0pt; margin-right: 0; margin-bottom: 0pt">The information required in the
remainder of this cover page shall not be deemed to be &ldquo;filed&rdquo; for purposes of Section 18 of the Securities Exchange Act
of 1934 (&ldquo;Act&rdquo;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other
provisions of the Act (however, see the Notes).</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"></P>

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<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"></P>

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    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; 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">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD COLSPAN="6" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No:&nbsp;30068X103</FONT></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES
                                            OF REPORTING PERSONS</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Tullis-Dickerson
                                            Capital Focus III, L.P.</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD COLSPAN="4" STYLE="padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
                                           THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></P></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">(3)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC
                                            USE ONLY</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></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">Delaware,
                                            United States of America</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="3" ROWSPAN="7" STYLE="text-transform: uppercase; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON WITH</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">(5)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            VOTING POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">0<FONT STYLE="font-size: 10pt">&nbsp;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">(6)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            VOTING POWER <BR></FONT></P>
                                                                                         <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,112,357
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            DISPOSITIVE POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            DISPOSITIVE POWER <BR></FONT></P>
                                                                                         <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,112,357
                                            (1)</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(9)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">1,112,357
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(10)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
                                            BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)&nbsp; &#9744;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 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-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">6.88%
                                            (2)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: top; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
                                            OF REPORTING PERSON (SEE INSTRUCTIONS)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PN</FONT></P></TD></TR>
<TR STYLE="font-size: 1pt">
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 6%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 1%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 5%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 80%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&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">
<TD STYLE="width: 0%"></TD><TD STYLE="width: 0.25in">(1)</TD><TD STYLE="text-align: left">Represents 992,821 shares of Common Stock as well as 119,536 shares of Common Stock issuable upon exercise of Warrants held by Tullis-Dickerson
Capital Focus III, L.P.</TD></TR></TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-size: 10pt"></FONT></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: 0"></TD><TD STYLE="width: 0.25in">(2)</TD><TD STYLE="text-align: left">Percentage calculated based on 16,164,232 shares of common stock outstanding as of November 5, 2021, as reported in the issuer&rsquo;s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2021.</TD></TR></TABLE>

<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"></P>

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    <DIV STYLE="break-before: page; 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: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD COLSPAN="6" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No:&nbsp;30068X103</FONT></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">(1)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES
                                            OF REPORTING PERSONS</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">Tullis
                                            Dickerson Partners III, L.L.C.</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD COLSPAN="4" STYLE="padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
                                           THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></P></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC
                                            USE ONLY</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></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">Delaware,
                                            United States of America</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="3" ROWSPAN="7" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON WITH</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">(5)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            VOTING POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">0<FONT STYLE="font-size: 10pt">&nbsp;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            VOTING POWER <BR></FONT></P>
                                                                                         <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,112,357
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            DISPOSITIVE POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            DISPOSITIVE POWER <BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,112,357
                                            (1)</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">(9)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">1,112,357
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(10)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK
                                            BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)&nbsp; &#9744;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 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-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">6.88%
                                            (2)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: top; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
                                            OF REPORTING PERSON (SEE INSTRUCTIONS)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;<FONT STYLE="font-size: 10pt">PN</FONT></FONT></P></TD></TR>
<TR STYLE="font-size: 1pt">
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 6%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 1%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 5%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 80%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&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: 0"></TD><TD STYLE="width: 0.25in">(1)</TD><TD>Represents 992,821 shares of Common Stock as well as 119,536 shares of Common Stock issuable upon exercise of Warrants held by Tullis-Dickerson
Capital Focus III, L.P. Tullis Dickerson Partners III, L.L.C. may be deemed to beneficially own these shares because the L.L.C. is a general
partner of Tullis-Dickerson Capital Focus III, L.P.</TD></TR></TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0"></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: 0"></TD><TD STYLE="width: 0.25in">(2)</TD><TD>Percentage calculated based on 16,164,232 shares of common stock outstanding as of November 5, 2021, as reported in the issuer&rsquo;s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2021.</TD></TR></TABLE>

<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"></P>

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    <DIV STYLE="break-before: page; 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: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD COLSPAN="6" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No:&nbsp;30068X103</FONT></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES
                                            OF REPORTING PERSONS</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">Tullis
                                            Growth Fund, L.P.</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD COLSPAN="4" STYLE="padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
                                           THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></P></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC
                                            USE ONLY</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></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">Delaware,
                                            United States of America</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="3" ROWSPAN="7" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON WITH</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            VOTING POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">0<FONT STYLE="font-size: 10pt">&nbsp;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            VOTING POWER <BR></FONT></P>
                                                                                         <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">587,843
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            DISPOSITIVE POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            DISPOSITIVE POWER <BR></FONT></P>
                                                                                         <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">587,843
                                            (1)</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(9)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">587,843
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(10)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK

                                            BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)&nbsp; &#9744;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 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-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">3.64%
                                            (2)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: top; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
                                            OF REPORTING PERSON (SEE INSTRUCTIONS)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT></P>
                                                                                                  <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PN</FONT></P></TD></TR>
<TR STYLE="font-size: 1pt">
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 6%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 1%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 5%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 80%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&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: 0"></TD><TD STYLE="width: 0.25in">(1)</TD><TD>Represents 417,398 shares of Common Stock as well as 170,445 shares of Common Stock issuable upon exercise of Warrants held by Tullis
Growth Fund, L.P.</TD></TR></TABLE>

<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: 0"></TD><TD STYLE="width: 0.25in">(2)</TD><TD>Percentage calculated based on 16,164,232 shares of common stock outstanding as of November 5, 2021, as reported in the issuer&rsquo;s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2021.</TD></TR></TABLE>

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



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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD COLSPAN="6" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No:&nbsp;30068X103</FONT></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES
                                            OF REPORTING PERSONS</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">Tullis-Growth
                                            Partners, L.LC.</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD COLSPAN="4" STYLE="padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
                                           THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></P></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC
                                            USE ONLY</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></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">Delaware,
                                            United States of America</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="3" ROWSPAN="7" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON WITH</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            VOTING POWER</FONT></P>
                                                                                         <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">0<FONT STYLE="font-size: 10pt">&nbsp;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            VOTING POWER <BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">587,843
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            DISPOSITIVE POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            DISPOSITIVE POWER <BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">587,843
                                            (1)</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(9)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">587,843
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(10)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK

                                            BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)&nbsp; &#9744;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 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-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">3.64%
                                            (2)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: top; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
                                            OF REPORTING PERSON (SEE INSTRUCTIONS)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT></P>
                                                                                                  <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PN</FONT></P></TD></TR>
<TR STYLE="font-size: 1pt">
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 6%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 1%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 5%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 80%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="margin-top: 0; margin-bottom: 0">&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: 0"></TD><TD STYLE="width: 0.25in">(1)</TD><TD>Represents 417,398 shares of Common Stock as well as 170,445 shares of Common Stock issuable upon exercise of Warrants held by Tullis
Growth Fund, L.P. Tullis-Growth Partners, L.L.C. may be deemed to beneficially own these shares because the L.L.C. is a general partner
of Tullis Growth Fund, L.P.</TD></TR></TABLE>

<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: 0"></TD><TD STYLE="width: 0.25in">(2)</TD><TD>Percentage calculated based on 16,164,232 shares of common stock outstanding as of November 5, 2021, as reported in the issuer&rsquo;s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2021.</TD></TR></TABLE>

<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"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD COLSPAN="6" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No:&nbsp;30068X103</FONT></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES
                                            OF REPORTING PERSONS</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">Tullis
                                            Growth Fund II, L.P.</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD COLSPAN="4" STYLE="padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
                                           THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></P></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC
                                            USE ONLY</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></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">Delaware,
                                            United States of America</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="3" ROWSPAN="7" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON WITH</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">(5)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            VOTING POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">0<FONT STYLE="font-size: 10pt">&nbsp;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            VOTING POWER <BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">105,453
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            DISPOSITIVE POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            DISPOSITIVE POWER <BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">105,453
                                            (1)</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(9)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">105,453
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(10)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK

                                            BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)&nbsp; &#9744;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 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-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">.65%
                                            (2)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: top; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
                                            OF REPORTING PERSON (SEE INSTRUCTIONS)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT></P>
                                                                                                  <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PN</FONT></P></TD></TR>
<TR STYLE="font-size: 1pt">
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 6%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 1%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 5%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 80%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&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: 0"></TD><TD STYLE="width: 0.25in">(1)</TD><TD>Represents 105,453 shares of Common Stock held by Tullis Growth Fund II, L.P.</TD></TR></TABLE>

<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: 0"></TD><TD STYLE="width: 0.25in">(2)</TD><TD>Percentage calculated based on 16,164,232 shares of common stock outstanding as of November 5, 2021, as reported in the issuer&rsquo;s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2021.</TD></TR></TABLE>

<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"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD COLSPAN="6" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No:&nbsp;30068X103</FONT></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES
                                            OF REPORTING PERSONS</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">Tullis-Growth
                                            Partners II, L.L.C.</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD COLSPAN="4" STYLE="padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
                                           THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></P></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC
                                            USE ONLY</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></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">Delaware,
                                            United States of America</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="3" ROWSPAN="7" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON WITH</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            VOTING POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">0<FONT STYLE="font-size: 10pt">&nbsp;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            VOTING POWER <BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">105,453
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            DISPOSITIVE POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            DISPOSITIVE POWER <BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">105,453
                                            (1)</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(9)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">105,453
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(10)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK

                                            BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)&nbsp; &#9744;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 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-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">.65%
                                            (2)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: top; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
                                            OF REPORTING PERSON (SEE INSTRUCTIONS)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT></P>
                                                                                                  <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PN</FONT></P></TD></TR>
<TR STYLE="font-size: 1pt">
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 6%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 1%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 5%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 80%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&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: 0"></TD><TD STYLE="width: 0.25in">(1)</TD><TD>Represents 105,453 shares of Common Stock held by Tullis Growth Fund II, L.P. Tullis-Growth Partners II, L.L.C. may be deemed to beneficially
own these shares because the L.L.C. is a general partner of Tullis Growth Fund II, L.P.</TD></TR></TABLE>

<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: 0"></TD><TD STYLE="width: 0.25in">(2)</TD><TD>Percentage calculated based on 16,164,232 shares of common stock outstanding as of November 5, 2021, as reported in the issuer&rsquo;s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2021.</TD></TR></TABLE>

<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"></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD COLSPAN="6" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    No:&nbsp;30068X103</FONT></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">NAMES
                                            OF REPORTING PERSONS</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"></P>
                                                                             <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">James
                                            L.L. Tullis</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD COLSPAN="4" STYLE="padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
                                           THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</FONT></P></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">SEC
                                            USE ONLY</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></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP
    OR PLACE OF ORGANIZATION </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                                        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">United
States of America</P></TD></TR>
<TR>
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="3" ROWSPAN="7" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NUMBER
    OF<BR>
    SHARES<BR>
    BENEFICIALLY<BR>
    OWNED BY<BR>
    EACH<BR>
    REPORTING<BR>
    PERSON WITH</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            VOTING POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">41,138
                                            (1)&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            VOTING POWER <BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,827,001
                                            (2)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE
                                            DISPOSITIVE POWER</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">41,138
                                            (1)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD COLSPAN="2" STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; padding: 0 3pt; vertical-align: bottom"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED
                                            DISPOSITIVE POWER <BR></FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,827,001
                                            (2)</FONT></P></TD></TR>
<TR>
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">(9)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE
    AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif"><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">1,868,139
                                            (3)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(10)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK

                                            BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)&nbsp; &#9744;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: bottom; padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT
    OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 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-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">11.56%
                                            (4)</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="padding: 0 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="padding: 0 3pt; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: black 1.5pt solid; vertical-align: top; padding: 0 3pt"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE
                                            OF REPORTING PERSON (SEE INSTRUCTIONS)</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR></FONT></P>
                                                                                                  <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">IN, HC</FONT></P></TD></TR>
<TR STYLE="font-size: 1pt">
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 4%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 6%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 1%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 5%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-top: 0; font-size: 1pt; width: 80%; padding-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 1pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&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: 0"></TD><TD STYLE="width: 0.25in">(1)</TD><TD>Represents 21,348 shares of Common Stock as well as 19,790 Options held by Mr. Tullis in his individual capacity. Note that 19,250
of these Options were held as of December 31, 2021 and another 540 Options became exercisable in the 60-day window following December
31, 2021.</TD></TR></TABLE>

<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: 0"></TD><TD STYLE="width: 0.25in">(2)</TD><TD>Represents 992,821 shares of Common Stock as well as 119,536 shares of Common Stock issuable upon exercise of Warrants held by Tullis-Dickerson
Capital Focus III, L.P.; 417,398 shares of Common Stock as well as 170,445 shares of Common Stock issuable upon exercise of Warrants held
by Tullis Growth Fund, L.P.; and 105,453 shares of Common Stock held by Tullis Growth Fund II, L.P. Mr. Tullis may be deemed to beneficially
own all of these shares as principal of each of the foregoing entities.</TD></TR></TABLE>

<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: 0"></TD><TD STYLE="width: 0.25in">(3)</TD><TD>Represents 992,821 shares of Common Stock as well as 119,536 shares of Common Stock issuable upon exercise of Warrants held by Tullis-Dickerson
Capital Focus III, L.P.; 417,398 shares of Common Stock as well as 170,445 shares of Common Stock issuable upon exercise of Warrants held
by Tullis Growth Fund, L.P.; 105,453 shares of Common Stock held by Tullis Growth Fund II, L.P.; and 41,148 shares of Common Stock held
by Mr. Tullis in his individual capacity. Mr. Tullis may be deemed to directly or beneficially own all of these shares as principal of
each of the foregoing entities.</TD></TR></TABLE>

<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: 0"></TD><TD STYLE="width: 0.25in">(4)</TD><TD>Percentage calculated based on 16,164,232 shares of common stock outstanding as of November 5, 2021, as reported in the issuer&rsquo;s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2021.</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"></P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"> <B>Item</B> <B>1. Security and Issuer.</B></P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">&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">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><B>(a)</B></TD><TD><B>Name of Issuer:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 43.5pt; text-indent: 0in">&nbsp;</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in">&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">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><B>(b)</B></TD><TD><B>Address of Issuer:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 43.5pt; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-left: 0.5in; text-align: left; margin-top: 0pt; margin-bottom: 0pt">1261 Liberty Way, Suite C,</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-left: 0.5in; text-align: left; margin-top: 0pt; margin-bottom: 0pt">Vista, CA 92081</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: -0.5pt"><B>Item 2. Identity and Background.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">&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">
<TD STYLE="width: 0%"></TD><TD STYLE="width: 0.5in"><B>(a)</B></TD><TD><B>Name of Person Filing:</B></TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">This statement is being filed on behalf of each of the following persons
(each, a &ldquo;Reporting Person&rdquo; and collectively, the &ldquo;Reporting Persons&rdquo;):</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; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">i.</TD><TD STYLE="text-align: justify">Tullis-Dickerson Capital Focus III, L.P. (&ldquo;<B><U>TD
Capital Focus</U></B>&rdquo;)</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">ii.</TD><TD STYLE="text-align: justify">Tullis-Dickerson Partners III, L.L.C., the general partner
of TD Capital Focus</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">iii.</TD><TD STYLE="text-align: justify">Tullis Growth Fund, L.P. (&ldquo;<B><U>Tullis Growth Fund</U></B>&rdquo;)</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">iv.</TD><TD STYLE="text-align: justify">Tullis-Growth Partners, L.L.C., the general partner of Tullis
Growth Fund</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">v.</TD><TD STYLE="text-align: justify">Tullis Growth Fund II, L.P. (&ldquo;<B><U>Tullis Growth Fund
II</U></B>&rdquo;)</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left">vi.</TD><TD STYLE="text-align: justify">Tullis-Growth Partners II, L.L.C., the general partner of
Tullis Growth Fund II</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-size: 10pt">vii.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">James L.L. Tullis as a principal
of each of the foregoing entities and in his individual capacity</FONT></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">&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: 0"></TD><TD STYLE="width: 0.5in"><B>(b)</B></TD><TD><B>Address of Principal Business Office or, if none, Residence:</B></TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in">The address of the principal business office
of each of the reporting persons is:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in">11770 US Highway One, Suite 503, Palm Beach
Gardens, FL 33408</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in">&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: 0"></TD><TD STYLE="width: 0.5in"><B>(c)</B></TD><TD><B>Citizenship or Place of Organization:</B></TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">James L. L. Tullis is a citizen of the United States
and each of the remaining Reporting Persons were formed in Delaware</P>

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

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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">&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: 0"></TD><TD STYLE="width: 0.5in"><B>(d)</B></TD><TD><B>Title of Class of Securities:</B></TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Common shares, par value $0.001
per share</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in">&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: 0"></TD><TD STYLE="width: 0.5in"><B>(e)</B></TD><TD><B>CUSIP Number:</B></TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">30068X103</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: -0.5pt"><B>Item 3. If this statement is filed pursuant
to &sect;&sect;240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;&thinsp; </FONT></TD>
                                                                                                                            <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o).</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744; </FONT></TD>
                                                                                                                            <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c).</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(c)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;</FONT></TD>
                                                                                                                            <TD> <FONT STYLE="font-family: Times New Roman, Times, Serif">Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c).</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(d)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;</FONT></TD>
                                                                                                                            <TD> <FONT STYLE="font-family: Times New Roman, Times, Serif">Investment company registered under Section 8 of the Investment Company Act
of 1940 (15 U.S.C. 80a-8).</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(e)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;</FONT></TD>
                                                                                                                            <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">An investment adviser in accordance with &sect;240.13d-1(b)(1)(ii)(E);</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(f)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744; </FONT></TD>
                                                                                                                            <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">An employee benefit plan or endowment fund in accordance with &sect;240.13d-1(b)(1)(ii)(F);</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(g)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744; </FONT></TD>
                                                                                                                            <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">A parent holding company or control person in accordance with &sect;240.13d-1(b)(1)(ii)(G);</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(h)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744; </FONT></TD>
                                                                                                                            <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">A savings association as defined in Section 3(b) of the Federal Deposit Insurance
Act (12 U.S.C. 1813);</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(i)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744; </FONT></TD>
                                                                                                                            <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">A church plan that is excluded from the definition of an investment company
under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(j)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744; </FONT></TD>
                                                                                                                              <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">A non-U.S. institution in accordance with &sect;240.13d-1(b)(1)(ii)(J);</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></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">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(k)</FONT></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744; </FONT></TD>
                                                                                                                            <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Group, in accordance with Rule 13d-1(b)(1)(ii)(K).</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"><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-indent: -0.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">If
filing as a non-U.S. institution in accordanc</FONT>e with &sect;240.13d-1(b)(1)(ii)(J), please specify the type of institution:</P>




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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: -0.5pt"><B>Item 4. Ownership</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">&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">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in">(a)</TD><TD><B>Amount Beneficially Owned:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 55.1pt; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">See row 9 of the cover page of each Reporting
Person.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 55.1pt; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">As of December 31, 2021, the general partner
of Tullis-Dickerson Capital Focus III, L.P., Tullis Dickerson Partners III, L.L.C. is deemed to beneficially own 1,112,357 shares of the
Issuer&rsquo;s common stock. As the general partner of Tullis Growth Fund, L.P. , Tullis-Growth Partners, L.L.C. is deemed to beneficially
own 587,843 shares of the Issuer&rsquo;s common stock. As the general partner of Tullis Growth Fund II, L.P., Tullis-Growth Partners II,
LLC is deemed to beneficially own 105,453 shares of the Issuer&rsquo;s common stock. James L.L. Tullis, in his individual capacity, beneficially
owns 41,148 shares of the Issuer&rsquo;s common stock and is a principal of each of the foregoing entities and may be deemed to possess
voting and investment control over, and may be deemed to have an indirect beneficial ownership with respect to the shares held by Tullis-Dickerson
Capital Focus III, L.P., Tullis Growth Fund, L.P., and Tullis Growth Fund II, L.P.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 55.1pt; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">Pursuant to Rule 13d-4 of the Securities
Exchange Act of 1934, as amended (the &ldquo;Exchange Act&rdquo;), the Reporting Persons declare that filing this Schedule 13G shall not
be construed as an admission that any such person is, for the purposes of Section 13(d) and/or Section 13(g) of the Exchange Act, the
beneficial owner of any Common Stock covered by this Schedule 13G except to the extent of such person&rsquo;s direct ownership of such
Common Stock, and except to the extent of such direct ownership, such beneficial ownership is expressly disclaimed by each Reporting Person.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">&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: 0.5in"></TD><TD STYLE="width: 0.25in">(b)</TD><TD><B>Percent of Class:</B></TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.5in; text-align: left">i.</TD><TD STYLE="text-align: justify">Tullis-Dickerson Capital Focus III, L.P.:&nbsp; 6.88%</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.5in; text-align: left">ii.</TD><TD STYLE="text-align: justify">Tullis-Dickerson Partners III, L.L.C.:&nbsp; 6.88%</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.5in; text-align: left">iii.</TD><TD STYLE="text-align: justify">Tullis Growth Fund, L.P.:&nbsp; 3.64%</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.5in; text-align: left">iv.</TD><TD STYLE="text-align: justify">Tullis-Growth Partners, L.L.C.:&nbsp; 3.64%</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.5in; text-align: left">v.</TD><TD STYLE="text-align: justify">Tullis Growth Fund II, L.P.: 0.65%</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.5in; text-align: left">vi.</TD><TD STYLE="text-align: justify">Tullis-Growth Partners II, L.L.C., 0.65%</TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.5in; text-align: left">vii.</TD><TD STYLE="text-align: justify">James L. L. Tullis:&nbsp; 11.56% as a principal of each of
the foregoing entities and 0.25%, individually</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in">Percentage calculated based on 16,164,232
shares of common stock outstanding as of November 5, 2021, as reported in the issuer&rsquo;s Quarterly Report on Form 10-Q for the quarter
ended September 30, 2021.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.5pt">&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: 0.5in"></TD><TD STYLE="width: 0.25in">(c)</TD><TD>Number of shares as to which such person has:</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">&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">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.25in">(i)</TD><TD><B>Sole power to vote or to direct the vote:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 85.7pt; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1.25in; text-indent: 0in">See row 5 of the cover page&nbsp;of each
Reporting Person.&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 85.7pt; text-indent: 0in">&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: 1in"></TD><TD STYLE="width: 0.25in">(ii)</TD><TD><B>Shared power to vote or to direct the vote:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 85.7pt; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1.25in; text-indent: 0in">See row 6 of the cover page&nbsp;of each Reporting Person</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 85.7pt; text-indent: 0in">&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: 1in"></TD><TD STYLE="width: 0.25in">(iii)</TD><TD><B>Sole power to dispose or to direct the disposition of:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 85.7pt; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1.25in; text-indent: 0in">See row 7 of the cover page&nbsp;of each
Reporting Person.&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 85.7pt; text-indent: 0in">&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: 1in"></TD><TD STYLE="width: 0.25in">(iv)</TD><TD><B>Shared power to dispose or to direct the disposition of:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 85.7pt; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1.25in; text-indent: 0in">See row 8 of the cover page&nbsp;of each
Reporting Person.&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 85.7pt; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: -0.5pt"><B>Item 5. Ownership of Five Percent or Less of
a Class</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 36.5pt; text-indent: -0.5pt">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: -0.5pt"><B>Item 6. Ownership of More than Five Percent
on Behalf of Another Person </B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 35.25pt; text-indent: -0.5in"><B>Item 7. Identification and Classification
of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 36.5pt; text-indent: -0.5pt">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: -0.5pt"><B>Item 8. Identification and Classification of
Members of the Group.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 36.5pt; text-indent: -0.5pt">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: -0.5pt"><B>Item 9. Notice of Dissolution of Group.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 36.5pt; text-indent: -0.5pt">Not applicable.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in">By signing below I certify that, to
the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the
effect of changing or influencing the control of the Issuer of the securities and were not acquired and are not held in connection with
or as a participant in any transaction having that purpose or effect.</P>

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

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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in"></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"><B>SIGNATURES</B></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B></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; text-indent: 0.5in">After reasonable inquiry and to the best of its
knowledge and belief, the undersigned certifies that the information set forth in this statement is true, complete, and correct.</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-indent: -0.5pt">Dated: February 14, 2022</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS-DICKERSON CAPITAL FOCUS III,</B> L.P.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>By:</B></FONT><B>&nbsp;&nbsp;&nbsp;</B></TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt"><B>Tullis-Dickerson Partners III, L.L.C., its general partner</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt"><B>By:</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%"><B>&nbsp;</B></TD>
    <TD STYLE="width: 4%"><B>&nbsp;</B></TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-size: 10pt"><B>Name:</B></FONT><B>&nbsp;&nbsp;</B></TD>
    <TD STYLE="width: 31%"><FONT STYLE="font-size: 10pt"><B>James L.L. Tullis</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Title:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Manager</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS GROWTH FUND, L.P.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>By:</B></FONT></TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt"><B>Tullis-Growth Partners, L.L.C., its general partner</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt"><B>By:</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Name:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>James L.L. Tullis</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Title:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Manager</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS GROWTH FUND II, L.P.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>By:</B></FONT></TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt"><B>Tullis-Growth Partners II, L.L.C., its general partner</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt"><B>By:</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Name:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>James L.L. Tullis</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Title:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Manager</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS-DICKERSON PARTNERS III, L.L.C.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt"><B>By:</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Name:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>James L.L. Tullis</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Title:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Chief Executive Officer</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS-GROWTH PARTNERS, L.L.C.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt"><B>By:</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Name:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>James L.L. Tullis</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Title:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Manager</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS-GROWTH PARTNERS II, L.L.C.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt"><B>By:</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Name:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>James L.L. Tullis</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD><B>&nbsp;</B></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Title:</B></FONT></TD>
    <TD><FONT STYLE="font-size: 10pt"><B>Chief Executive Officer</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt"><B>JAMES L.L. TULLIS</B>,<B>&nbsp;Individually</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-align: center"></P>

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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ea155594ex99-1_exagen.htm
<DESCRIPTION>JOINT FILING AGREEMENT
<TEXT>
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<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: right"><B>Exhibit 99.1</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-top: 0pt; margin-bottom: 0pt; text-align: center">JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)</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-indent: 0in">The undersigned acknowledge and agree that
the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this
statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint
filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for
the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible
for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason
to believe that such information is inaccurate.</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-indent: 0">Dated February&nbsp;14, 2022</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS-DICKERSON CAPITAL FOCUS III,</B> L.P.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT>&nbsp;&nbsp;&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt">Tullis-Dickerson Partners III, L.L.C., its general partner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-size: 10pt">Name:</FONT>&nbsp;&nbsp;</TD>
    <TD STYLE="width: 31%"><FONT STYLE="font-size: 10pt">James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">Manager</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS-DICKERSON PARTNERS III, L.L.C.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">Manager</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS GROWTH FUND, L.P.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt">Tullis-Growth Partners, L.L.C., its general partner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">Manager</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS-GROWTH PARTNERS, L.L.C.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">Manager</FONT></TD></TR>
</TABLE>
<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"></P>

<!-- Field: Page; Sequence: 12 -->
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS GROWTH FUND II, L.P.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT>&nbsp;&nbsp;&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt">Tullis-Growth Partners II, L.L.C., its general partner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-size: 10pt">Name:</FONT>&nbsp;&nbsp;</TD>
    <TD STYLE="width: 31%"><FONT STYLE="font-size: 10pt">James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">Manager</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>TULLIS-GROWTH PARTNERS II, L.L.C.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">Chief Executive Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ James L.L. Tullis</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-size: 10pt"><B>JAMES L.L. TULLIS</B>,&nbsp;Individually</FONT></TD></TR>
</TABLE>
<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"></P>

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