<SEC-DOCUMENT>0001104659-21-040445.txt : 20210324
<SEC-HEADER>0001104659-21-040445.hdr.sgml : 20210324
<ACCEPTANCE-DATETIME>20210323194514
ACCESSION NUMBER:		0001104659-21-040445
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210324
DATE AS OF CHANGE:		20210323

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Marker Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001094038
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				880277072
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-58217
		FILM NUMBER:		21766135

	BUSINESS ADDRESS:	
		STREET 1:		3200 SOUTHWEST FREEWAY
		STREET 2:		SUITE 2500
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77027
		BUSINESS PHONE:		(713) 400-6400

	MAIL ADDRESS:	
		STREET 1:		3200 SOUTHWEST FREEWAY
		STREET 2:		SUITE 2500
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77027

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TAPIMMUNE INC.
		DATE OF NAME CHANGE:	20170629

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TAPIMMUNE INC
		DATE OF NAME CHANGE:	20070628

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GENEMAX CORP
		DATE OF NAME CHANGE:	20020718

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Leen Ann M.
		CENTRAL INDEX KEY:			0001763026

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	MAIL ADDRESS:	
		STREET 1:		5 WEST FORSYTH STREET
		STREET 2:		SUITE 200
		CITY:			JACKSONVILLE
		STATE:			FL
		ZIP:			32202
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>tm2110678d1_sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 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 -->

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
Washington, D.C. 20549</B></P>

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

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D/A-1<BR>
<BR>
</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Under the Securities Exchange Act of 1934 (Amendment
No. 1)<BR>
<BR>
</P>

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    <TD STYLE="width: 100%; border-bottom: Black 1pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>Marker
    Therapeutics, Inc.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Name of Issuer)</FONT></TD></TR>
  </TABLE>
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    <TD STYLE="width: 100%; border-bottom: Black 1pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Common Stock, Par Value $0.001</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Title of Class of Securities)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 100%; border-bottom: Black 1pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>57055L 107</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(CUSIP Number)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
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    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Ann Leen</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>3200 Southwest Freeway, Suite 2500</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Houston, Texas</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(713) 400-6400</B></P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; padding-top: 0.25in; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>March 16, 2021</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Date of Event which Requires Filing of this Statement)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">If
the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D,
and is filing this schedule because of 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT>.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Note:</B></FONT>
Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See 240.13d-7(b)
for other parties to whom copies are to be sent.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">*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 disclosures provided in a prior cover page.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The information required on the remainder of this
cover page shall not be deemed to be &ldquo;filed&rdquo; for the purpose 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; text-align: justify">&nbsp;</P>

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

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

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


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<P STYLE="font: bold 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: bold 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D</B></P>

<P STYLE="font: bold 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

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    <TD STYLE="padding: 3pt; vertical-align: top; width: 36%; border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font-size: 10pt; text-align: justify; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
    No.</B></FONT></TD>
    <TD STYLE="padding: 3pt; width: 64%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center; text-indent: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>57055L
    107</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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    <TD ROWSPAN="2" STYLE="width: 5%; border: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>1</B></FONT></TD>
    <TD STYLE="width: 95%; border-top: Black 1pt solid; border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NAMES OF REPORTING PERSONS<BR>
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ann Leen </FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>2</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 17.3pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&#168;</FONT>
    </P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 17.3pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&#168;</FONT></P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>3</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC USE ONLY</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOURCE OF FUNDS (See Instructions)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">OO</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>5</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-left: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>6</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CITIZENSHIP OR PLACE OF ORGANIZATION</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ireland</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="8" STYLE="width: 13%; border: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NUMBER OF<BR>
<BR>
SHARES<BR>
<BR>
BENEFICIALLY<BR>
<BR>
OWNED BY<BR>
<BR>
EACH<BR>
<BR>
REPORTING<BR>
<BR>
PERSON<BR>
<BR>
WITH</FONT></TD>
    <TD ROWSPAN="2" STYLE="vertical-align: top; width: 5%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 82%; border-top: Black 1pt solid; border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE VOTING POWER</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,415,842*</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>8</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED VOTING POWER</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE DISPOSITIVE POWER</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,415,842*</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>10</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED DISPOSITIVE POWER</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></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 ROWSPAN="2" STYLE="border-right: Black 1pt solid; width: 5%; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>11</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; width: 95%; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,415,842*</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>12</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>13</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.89%**</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>14</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TYPE OF REPORTING PERSON (See Instructions)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 3pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">IN</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25pt; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">*Includes
warrants to acquire 722,783 shares of Issuer&rsquo;s common stock</FONT>.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25pt; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">**</FONT>Such
percentage was calculated based upon an aggregate of 83,736,712 Issuer shares of common stock outstanding, consisting of (i) 50,731,072
Issuer shares of common stock outstanding as of March 1, 2021 as represented by the Issuer&rsquo;s Report on Form 10-K filed with the
Securities and Exchange Commission (&ldquo;SEC&rdquo;) on March 9, 2021, (ii) 28,572,000&nbsp;shares of common stock sold in an underwritten
public offering as represented by the Issuer&rsquo;s Report on Form 8-K filed with the SEC on March 16, 2021, (iii) <FONT STYLE="background-color: white">3,710,857
shares issued pursuant to the partial exercise by the underwriter of its over-allotment option </FONT>as represented by the Issuer&rsquo;s
Report on Form 8-K filed with the SEC on March 16, 2021, and (iv) 722,783 shares of common stock able to be acquired by the Reporting
Person upon exercise of warrants held by the Reporting Person.</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; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CUSIP
No.&#9;&nbsp;&nbsp;</B></FONT><B><FONT STYLE="font-size: 10pt">57055L 107</FONT></B></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Amendment No. 1 (&ldquo;Amendment No. 1&rdquo;) amends the statement on Schedule 13D originally filed on February 14, 2019.</FONT> &nbsp;Except
as otherwise specified in this Amendment No.&nbsp;1, all previous Items are unchanged. Defined terms used herein but not otherwise defined
have the meanings set forth in the Schedule 13D.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Amendment No. 1 </FONT>is being filed to report a decrease in the Reporting Person&rsquo;s beneficial ownership in the Company (i) primarily
due to an increase in the Company&rsquo;s issued and outstanding shares resulting from the Company&rsquo;s consummation of a public offering
on March 16, 2021 pursuant to which an aggregate of <FONT STYLE="background-color: white">32,282,857 </FONT>shares of common stock were
issued, and (ii) resulting from the sale of 300,000 shares of common stock by the Reporting Person on March 22, 2021.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25pt; background-color: white">Amendment No. 1 represents the
final amendment to Schedule 13D and constitutes an exit filing for the Reporting Person.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25pt; background-color: white">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 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: 45pt"><B>Item 1.</B></TD><TD><B>Security and Issuer</B></TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Statement on Schedule 13D (this &ldquo;Schedule&rdquo;) relates to the common stock, par value $0.001 per share (&ldquo;Common Stock&rdquo;),
of Marker Therapeutics, Inc., a Delaware corporation (the &ldquo;Issuer&rdquo;).&nbsp;The principal executive offices of the Issuer are
located at </FONT>3200 Southwest Freeway, Suite 2500, Houston, Texas.</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 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: 45pt"><B>Item 2.</B></TD><TD><B>Identity and Background</B></TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD><TD STYLE="text-align: justify">This Schedule is being filed by Ann Leen, an individual.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(b)</B></FONT></TD><TD STYLE="text-align: justify">The Reporting Person&rsquo;s business address is One Baylor Plaza BCM 210-600D Houston, Texas, 77030.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)</FONT></TD><TD STYLE="text-align: justify">The Reporting Person is employed by Baylor College of Medicine.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)</FONT></TD><TD STYLE="text-align: justify">The Reporting Person has not been convicted in a criminal proceeding in the last five years (excluding
traffic violations or similar misdemeanors).</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)</FONT></TD><TD STYLE="text-align: justify">The Reporting Person has not, during the last five years, been a party to a civil proceeding of a judicial
or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order
enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation
with respect to such laws.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)</FONT></TD><TD STYLE="text-align: justify">The Reporting Person is a citizen of Ireland.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 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: 45pt"><B>Item 4.</B></TD><TD><B>Purpose of Transaction</B></TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; background-color: white">The
Reporting Person has no&nbsp;</FONT>plans or proposals that relate to or would result in any transaction, event or action enumerated in
paragraph (a) through (j) of Item 4 of Schedule 13D. <FONT STYLE="background-color: white">The Reporting Person sold an aggregate </FONT>300,000
<FONT STYLE="background-color: white">shares of the Issuer&rsquo;s common stock in open market transactions on March 22, 2021. </FONT>Full
information regarding the number of shares sold at separate prices can be furnished to the SEC staff upon request. <FONT STYLE="background-color: white">The
Reporting Person has no specific plans or proposals to dispose of any specific number of shares of Common Stock or at any specific prices
and the Reporting Person reserves the right to change such current intentions at any time.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>CUSIP
No.&#9;&nbsp;&nbsp;</B><B>57055L 107</B></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 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: 45pt"><B>Item 5.</B></TD><TD><B>Interest in Securities of the Issuer</B></TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The Reporting Person beneficially
owns 2,415,842 shares of Common Stock (including </FONT>722,783 shares issuable upon the exercise of warrants), which comprises 2.89%
of the Common Stock of the Issuer. As of, March 16, 2021, there were 83,013,929 shares of Common Stock of the Issuer issued and outstanding
as consisting of (i) 50,731,072 Issuer shares of common stock outstanding as of March 1, 2021 as represented by the Issuer&rsquo;s Report
on Form 10-K filed with the Securities and Exchange Commission (&ldquo;SEC&rdquo;) on March 9, 2021, (ii) 28,572,000&nbsp;shares of common
stock sold in an underwritten public offering as represented by the Issuer&rsquo;s Report on Form 8-K filed with the SEC on March 16,
2021, and (iii) <FONT STYLE="background-color: white">3,710,857 shares issued to the underwriter in a partial exercise of its over-allotment
option </FONT>as represented by the Issuer&rsquo;s Report on Form 8-K filed with the SEC on March 16, 2021.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">(b)</TD><TD STYLE="text-align: justify">The Reporting Person has the sole power to vote the shares beneficially owned.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)</FONT></TD><TD STYLE="text-align: justify">There have been no reportable transactions with respect to the Issuer&rsquo;s Common Stock within the
last 60 days by the Reporting Person other than as described in this Statement on Schedule 13D.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)</FONT></TD><TD STYLE="text-align: justify">Only the Reporting Person has the right to receive or the power to direct the receipt of dividends from,
or proceeds from the sale of, the shares of Common Stock reported by this statement.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)</FONT></TD><TD STYLE="text-align: justify">On March 16, 2021, the Reporting Persons ceased to be the beneficial owner of more than five percent of
the shares of Issuer&rsquo;s Common Stock.</TD></TR></TABLE>

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

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

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



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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><B>CUSIP
No.&#9;&nbsp;&nbsp;</B><B>57055L 107</B></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">After reasonable inquiry and to the best of my
knowledge and belief, I certify 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; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 47%; border-bottom: Black 1pt solid; padding-top: 6pt; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">March 23, 2021</FONT></TD>
    <TD STYLE="width: 53%; padding-top: 6pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dated</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/Ann Leen</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Signature</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The original statement shall be signed by each
person on whose behalf the statement is filed or his authorized representative. If the statement is signed on behalf of a person by his
authorized representative (other than an executive officer or general partner of this filing person), evidence of the representative&rsquo;s
authority to sign on behalf of such person shall be filed with the statement, provided, however, that a power of attorney for this purpose
which is already on file with the Commission may be incorporated by reference. The name and any title of each person who signs the statement
shall be typed or printed beneath his signature.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Attention: Intentional misstatements or omissions
of fact constitute Federal criminal violations (See 18 U.S.C. 1001).</B></P>

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