<SEC-DOCUMENT>0001193125-21-136178.txt : 20210428
<SEC-HEADER>0001193125-21-136178.hdr.sgml : 20210428
<ACCEPTANCE-DATETIME>20210428121719
ACCESSION NUMBER:		0001193125-21-136178
CONFORMED SUBMISSION TYPE:	424B4
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20210428
DATE AS OF CHANGE:		20210428

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MESA AIR GROUP INC
		CENTRAL INDEX KEY:			0000810332
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
		IRS NUMBER:				850302351
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		424B4
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-251290
		FILM NUMBER:		21862764

	BUSINESS ADDRESS:	
		STREET 1:		410 NORTH 44TH STREET
		STREET 2:		SUITE 700
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85008
		BUSINESS PHONE:		602.685.4000

	MAIL ADDRESS:	
		STREET 1:		410 NORTH 44TH STREET
		STREET 2:		SUITE 700
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85008

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MESA AIRLINES INC
		DATE OF NAME CHANGE:	19950426
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B4
<SEQUENCE>1
<FILENAME>d52203d424b4.htm
<DESCRIPTION>424B4
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Filed Pursuant to Rule 424(b)(4) <BR> Registration No. 333-251290<BR> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Prospectus </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>MESA AIR GROUP, INC.
</B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt;margin-bottom:0pt" ALIGN="center">


<IMG SRC="g52203g1210221245372.jpg" ALT="LOGO">
 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>4,899,497 Shares of Common Stock </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>Warrants to Purchase 4,899,497 Shares of Common Stock </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This prospectus
covers the offer, resale or other disposition from time by the selling securityholder named herein of (i)&nbsp;warrants (each, a &#147;Warrant&#148; and, collectively, the &#147;Warrants&#148;) to purchase up to 4,899,497 shares of our common stock,
no par value (&#147;common stock&#148;), and (ii) 4,899,497 shares of our common stock underlying the Warrants (the &#147;Warrant Shares&#148;). The Warrants and Warrant Shares are collectively referred to herein as the &#147;Securities&#148;. We
are not selling any Warrants or Warrant Shares under this prospectus and will not receive any proceeds from the sale of Warrants or Warrant Shares by the selling securityholder. The selling securityholder will bear all commissions and discounts, if
any, attributable to the sale of the shares of common stock. We will bear all costs, expenses and fees in connection with the registration of the shares of common stock. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On October&nbsp;30, 2020 (the &#147;Treasury Loan Closing Date&#148;), we, along with Mesa Airlines, Inc., our wholly-owned subsidiary, and
certain other parties thereto entered into a Loan and Guarantee Agreement (the &#147;Treasury Loan Agreement&#148;) with the U.S. Department of the Treasury (&#147;Treasury&#148;) with respect to the loan program under the Coronavirus Aid, Relief,
and Economic Security Act (&#147;CARES Act&#148;). In connection with our entry into the Treasury Loan Agreement, on the Treasury Loan Closing Date, we entered into a Warrant Agreement (&#147;Warrant Agreement&#148;) with Treasury. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to the Treasury Loan Agreement, we received financial assistance from Treasury in the aggregate amount of $195.0&nbsp;million. As
compensation to Treasury for the provision of financial assistance under the Treasury Loan Agreement, we issued Warrants to Treasury to purchase up to an aggregate of 4,899,497 shares of our common stock at an initial exercise price of $3.98 per
share, which was the closing price of our common stock on the Nasdaq Global Select Market on April&nbsp;9, 2020. The number of Warrant Shares to be issued is subject to adjustment as a result of anti-dilution adjustments contained in the Warrants.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to the Warrant Agreement, we agreed to file a registration statement, of which this prospectus is a part, with the Securities
and Exchange Commission (&#147;SEC&#148;) to register the disposition of the maximum number of Warrants and Warrant Shares. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Warrants
and Warrant Shares may be sold by the selling securityholder to or through underwriters or dealers, directly to purchasers or through agents designated from time to time. For additional information regarding the methods of sale, you should refer to
the section of this prospectus entitled &#147;Plan of Distribution&#148; on page 13. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We may amend or supplement this prospectus from time
to time by filing amendments or supplements as required. You should read the entire prospectus and any amendments or supplements carefully before you make your investment decision. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:5%; font-size:12pt; font-family:Times New Roman"><B>INVESTING IN THE SECURITIES DESCRIBED IN THIS PROSPECTUS INVOLVES RISKS. YOU SHOULD CAREFULLY READ AND CONSIDER &#147;<A HREF="#tx52203_6">RISK
 FACTORS</A>&#148; BEGINNING ON PAGE 5 OF THIS PROSPECTUS AS WELL AS THE RISK FACTORS CONTAINED IN DOCUMENTS WE FILE WITH THE SECURITIES AND EXCHANGE COMMISSION, WHICH ARE INCORPORATED BY REFERENCE INTO THIS PROSPECTUS, BEFORE INVESTING IN OUR
SECURITIES. </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our common stock is listed on The Nasdaq Global Select Market under the symbol &#147;MESA.&#148; The last reported sale
price of our common stock on The Nasdaq Global Select Market on April&nbsp;19, 2021 was $11.70 per share. There is no established trading market for the Warrants and we do not expect a market to develop. In addition, we do not intend to list the
Warrants on any securities exchange or automated quotation system. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B>Neither the SEC nor any state securities commission has approved or
disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.&nbsp;&nbsp;&nbsp;&nbsp; </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>The date of this prospectus is</B><B> April 28, 2021. </B> </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="toc"></A>TABLE OF CONTENTS </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_1">ABOUT THIS PROSPECTUS</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">1</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_2">WHERE YOU CAN FIND MORE INFORMATION</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">2</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_3">INCORPORATION OF CERTAIN INFORMATION BY REFERENCE</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">2</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_4">SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">3</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
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<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_5">PROSPECTUS SUMMARY</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">4</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_6">RISK FACTORS</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">5</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_7">USE OF PROCEEDS</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">6</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_8">DESCRIPTION OF CAPITAL STOCK</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">6</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_9">DESCRIPTION OF WARRANTS</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">9</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
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<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_10">SELLING SECURITYHOLDER</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">12</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
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<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_11">PLAN OF DISTRIBUTION</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">13</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
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<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_12">LEGAL MATTERS</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">15</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><A HREF="#tx52203_13">EXPERTS</A></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">15</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_1"></A>ABOUT THIS PROSPECTUS </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This prospectus is a part of a registration statement on Form <FONT STYLE="white-space:nowrap">S-3</FONT> that we filed with the SEC using a &#147;shelf&#148;
registration process. Under this shelf registration process, the selling securityholder may, from time to time, sell the Securities in one or more offerings or resales. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The rules of the SEC allow us to incorporate by reference information into this prospectus. This information incorporated by reference is considered to be a
part of this prospectus, and information that we file later with the SEC, to the extent incorporated by reference, will automatically update and supersede this information. See &#147;Incorporation of Certain Information by Reference&#148; set forth
below. You should read both this prospectus and any applicable prospectus supplement together with the additional information about our company described under the caption &#147;Where You Can Find More Information.&#148; <B></B> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Neither we nor any agent or selling securityholder has authorized any person to give any information or to make any representation other than those contained
or incorporated by reference in this prospectus or any applicable prospectus supplement prepared by or on behalf of us or to which we have referred you. This prospectus does not constitute an offer to sell or the solicitation of an offer to buy any
securities other than the registered securities to which they relate, nor does this prospectus constitute an offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom it is unlawful to make such offer
or solicitation in such jurisdiction. You should read this prospectus and any applicable prospectus supplement together with additional information described below under the headings &#147;Where You Can Find More Information&#148; and
&#147;Incorporation of Certain Information by Reference&#148; before you decide to invest in our securities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This prospectus contains summaries of
certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the
documents referred to herein have been filed, will be filed or will be incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described under the
caption &#147;Where You Can Find More Information&#148; in this prospectus. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Neither the delivery of this prospectus nor any sale made using this
prospectus implies that there has been no change in our affairs or that the information in this prospectus is correct as of any date after the date of this prospectus. You should not assume that the information in or incorporated by reference in
this prospectus prepared by us is accurate as of any date other than the date on the front cover of this prospectus. Our business, financial condition, results of operations and prospects may have changed since that date. </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">As used in this prospectus, unless the context indicates otherwise, the terms &#147;we,&#148; &#147;our,&#148; &#147;us,&#148; the &#147;Company,&#148; or
&#147;registrant&#148; refer to Mesa Air Group, Inc. and includes its subsidiaries. Unless otherwise stated or indicated by context, the phrase &#147;this prospectus&#148; refers to the prospectus. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">1 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_2"></A>WHERE YOU CAN FIND MORE INFORMATION </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We are subject to the information reporting requirements of the Securities Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;) and, in accordance
with these requirements, we are required to file periodic reports and other information with the SEC. The SEC maintains an Internet website at www.sec.gov that contains our filed reports, proxy and information statements, and other information we
file electronically with the SEC. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Additionally, we make our SEC filings available on our website at
<FONT STYLE="white-space:nowrap">http://investor.mesa-air.com</FONT> as soon as reasonably practicable after we electronically file such materials with, or furnish them to, the SEC. The information on our website, other than the filings incorporated
by reference in this prospectus, is not, and should not be, considered part of this prospectus, is not incorporated by reference into this document, and should not be relied upon in connection with making any investment decision with respect to the
Securities. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_3"></A>INCORPORATION OF CERTAIN INFORMATION BY REFERENCE </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The SEC allows us to &#147;incorporate by reference&#148; into this prospectus the information we file with it, which means that we can disclose important
information to you by referring you to those documents. The information incorporated by reference is considered to be part of this prospectus, and later information that we file with the SEC will automatically update and supersede this information.
We incorporate by reference the documents listed below and their amendments, except information furnished under Item 2.02 or Item 7.01 of Form <FONT STYLE="white-space:nowrap">8-K,</FONT> which is neither deemed filed nor incorporated by reference
herein and any future filings made with the SEC under Section&nbsp;13(a), 13(c), 14 or 15(d) of the Exchange Act until this offering is completed: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">Our Annual Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT> for the fiscal year ended September 30,
2020, filed with the SEC on <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/810332/000156459020057000/mesa-10k_20200930.htm">December<U></U>&nbsp;14, 2020</A>; </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">Our Quarterly Report on Form <FONT STYLE="white-space:nowrap">10-Q</FONT> for the quarterly period ended December
31, 2020, filed with the SEC on <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/0000810332/000156459021005051/mesa-10q_20201231.htm">February<U></U>&nbsp;9, 2021</A>; </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">Our Current Reports on Form <FONT STYLE="white-space:nowrap">8-K</FONT> filed with the SEC on <A HREF="http://www.sec.gov/Archives/edgar/data/810332/000156459019036406/mesa-8k_20190930.htm">
</A><A HREF="http://www.sec.gov/Archives/edgar/data/810332/000156459020014480/mesa-8k_20200401.htm"></A><U></U><A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/810332/000156459020046238/mesa-8k_20201008.htm">October
<U></U>&nbsp;13, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/810332/000156459020046517/mesa-8k_20201015.htm">October<U></U>&nbsp;
15, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/810332/000156459020049697/mesa-8k_20201030.htm">November<U></U>&nbsp;
2, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/810332/000156459020052138/mesa-8k_20201104.htm">November<U></U>&nbsp;
9, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/810332/000156459020053982/mesa-8k_20201113.htm">November<U></U>&nbsp;
16, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/810332/000156459020054710/mesa-8k_20201112.htm">November<U></U>&nbsp;
20, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/810332/000156459020055066/mesa-8k_20201119.htm">November<U></U>&nbsp;
24, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/0000810332/000156459020056772/mesa-8k_20201208.htm">December&nbsp;
11, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/810332/000156459020058707/mesa-8k_20201222.htm">December&nbsp;
29, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/0000810332/000156459021003873/mesa-8k_20210202.htm">February 2, 2021</A>, and <A HREF="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/0000810332/000156459021005013/mesa-8k_20210209.htm">February&nbsp;9,
 2021</A>; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">The information from our definitive proxy statement filed on <A HREF="http://www.sec.gov/Archives/edgar/data/810332/000119312520326147/d22484ddef14a.htm">December
<U></U>&nbsp;23, 2020</A> specifically incorporated by reference into our Annual Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT> for the fiscal year ended September&nbsp;30, 2020; and </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">The description of our capital stock in our Form <FONT STYLE="white-space:nowrap">8-A</FONT> filed with the SEC
on <A HREF="http://www.sec.gov/Archives/edgar/data/810332/000119312518243966/d604966d8a12b.htm">August<U></U>&nbsp;9, 2018</A>, and any amendment or report filed with the SEC for the purpose of updating the description. </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We also incorporate by reference into this prospectus all documents (other than current reports furnished under Item 2.02 or Item 7.01 of Form <FONT
STYLE="white-space:nowrap">8-K</FONT> and exhibits filed on such form that are related to such items) that are filed by us with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (i)&nbsp;after the date of the initial filing
of the registration statement of which this prospectus forms a part and prior to effectiveness of the registration statement, or (ii)&nbsp;after the date of this prospectus but prior to the termination of the offering. These documents include
periodic reports, such as Annual Reports on Form <FONT STYLE="white-space:nowrap">10-K,</FONT> Quarterly Reports on Form <FONT STYLE="white-space:nowrap">10-Q</FONT> and Current Reports on Form <FONT STYLE="white-space:nowrap">8-K,</FONT> as well as
proxy statements. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We will furnish without charge to you, on written or oral request, a copy of any or all of the documents incorporated by reference
herein, other than exhibits to such documents that are not specifically incorporated by reference therein. You should direct any requests for documents to us at the following address or telephone number: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Investor Relations </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Mesa Air
Group, Inc. </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">410 North 44th Street, Suite 700 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Phoenix, Arizona 85008 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Telephone:
(602) <FONT STYLE="white-space:nowrap">685-4000</FONT> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">You should rely only on the information incorporated by reference or provided in this prospectus
or any accompanying prospectus supplement. We have not authorized anyone to provide you with different information. We are not making an offer of these securities in any state where the offer is not permitted. You should not assume that the
information in this prospectus, any prospectus supplement or any document which we incorporate by reference is accurate as of any date other than the date on its cover. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_4"></A>SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This prospectus and the documents incorporated by reference herein contain statements that constitute &#147;forward-looking statements&#148; within the
meaning of Section&nbsp;27A of the Securities Act and Section&nbsp;21E of the Exchange Act and are subject to the safe harbor created thereby. All statements contained herein and in the documents incorporated by reference herein other than
statements of historical facts, including statements regarding our future results of operations and financial position, our business strategy and plans and our objectives for future operations, are forward-looking statements. Forward-looking
statements can also be identified by words such as &#147;future,&#148; &#147;anticipates,&#148; &#147;believes,&#148; &#147;estimates,&#148; &#147;expects&#148;, &#147;intends,&#148; &#147;plans,&#148; &#147;predicts,&#148; &#147;will,&#148;
&#147;would,&#148; &#147;could,&#148; &#147;can,&#148; &#147;may,&#148; and similar terms. Forward-looking statements are not guarantees of future performance and our actual results may differ significantly from the results discussed in the
forward-looking statements. Factors that might cause such differences include, but are not limited to, those discussed in Part I, Item 1A of our Annual Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT> filed with the Securities and
Exchange Commission on December&nbsp;14, 2020 under the heading &#147;Risk Factors&#148; which are incorporated herein by reference. All information presented herein is based on our fiscal calendar. Unless otherwise stated, references to particular
years, quarters, months or periods refer to our fiscal years ended September&nbsp;30 and the associated quarters, months, and periods of those fiscal years. Each of the terms the &#147;Company,&#148; &#147;Mesa Airlines,&#148; &#147;we,&#148;
&#147;us&#148; and &#147;our&#148; as used herein refers collectively to Mesa Air Group, Inc. and its wholly owned subsidiaries, unless otherwise stated. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity,
performance, achievements or events and circumstances reflected in the forward-looking statements will occur. We cannot assure you that forward-looking statements in this prospectus or the documents incorporated herein will prove to be accurate.
Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or
warranty by us to any other person that we will achieve our objectives and plans in any specified time frame, or at all. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The cautionary statements made
in this prospectus and the documents incorporated herein are intended to be applicable to all related forward-looking statements wherever they may appear in this prospectus. We urge you not to place undue reliance on these forward-looking
statements, which speak only as of the date they are made. Except as required by law, we assume no obligation to update our forward-looking statements, even if new information becomes available in the future. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3 </P>

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<div style ="BORDER-BOTTOM:1.00pt solid #000000;BORDER-LEFT:1.00pt solid #000000;BORDER-RIGHT:1.00pt solid #000000;BORDER-TOP:1.00pt solid #000000;MARGIN-LEFT:0px; MARGIN-RIGHT:0px;max-width:100%"><div style="width:97%; margin-top:1.5%; margin-left:1.5%; margin-right:-1.25%">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_5"></A>PROSPECTUS SUMMARY </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>This summary highlights selected information from this prospectus and does not contain all of the information that you need to consider in making your
investment decision. You should carefully read the entire prospectus, especially the risks of investing in our securities discussed under &#147;Risk Factors&#148; in this prospectus beginning on page 5 and in our most recent Annual Report on Form <FONT
STYLE="white-space:nowrap">10-K</FONT> and Quarterly Reports on Form <FONT STYLE="white-space:nowrap">10-Q,</FONT> as they may be amended, and any accompanying prospectus supplement, as well as the risk factors discussed in the documents
incorporated by reference herein. See &#147;Where You Can Find More Information&#148; and &#147;Incorporation of Certain Information by Reference&#148; on page 2 of this prospectus for a further discussion on incorporation by reference. </I></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Overview </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Mesa Airlines is a regional air
carrier providing scheduled flight service to 102 cities in 39 states, the District of Columbia, Canada and Mexico. As of September&nbsp;30, 2020, we operated a fleet of 146 aircraft with approximately 373 daily departures and 3,200 employees. All
of our flights are operated as either American Eagle or United Express flights pursuant to the terms of capacity purchase agreements entered into with American Airlines, Inc., United Airlines, Inc. and DHL Express. We have a significant presence in
several of our major airline partners&#146; key domestic hubs and focus cities, including Dallas, Houston, Phoenix and Washington-Dulles. Our principal executive offices are located at 410 North 44th Street, Suite 700, Phoenix, Arizona 85008 and our
phone number is (602) <FONT STYLE="white-space:nowrap">685-4000.</FONT> </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>The Offering </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>

<TD WIDTH="33%"></TD>

<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="65%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Issuer securities to be offered by the selling securityholder</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Warrants to purchase up to 4,899,497 shares of common stock (and up to 4,899,497 shares of common stock issuable upon exercise of such warrants). The Warrants have an exercise price of $3.98 per share and are exercisable until the
fifth anniversary of the issuance date of the applicable Warrant. The Warrants are exercisable either through net share settlement or cash, at the Company&#146;s option. The number of Warrant Shares to be issued is subject to adjustment as a result
of certain anti-dilution provisions contained in the Warrants. You should carefully consider the information under &#147;Description of Capital Stock&#148; and &#147;Description of Warrants&#148; and all other information included or incorporated by
reference in this prospectus before investing in our securities.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Listing</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Our common stock is listed on the Nasdaq Global Select Market under the symbol &#147;MESA.&#148; On April 19, 2021 the last reported sale price of our common stock was $11.70.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Use of Proceeds</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">We will not receive any proceeds from the sale of the Warrants or the Warrant Shares covered by this prospectus. See &#147;Use of Proceeds.&#148;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Risk Factors</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">An investment in our securities involves a high degree of risk. Before making an investment decision, you should carefully consider all of the information included or incorporated by reference in this prospectus and, in particular,
you should evaluate the risk factors identified in this prospectus under &#147;Risk Factors&#148; beginning on page 5 of this prospectus.</TD></TR>
</TABLE>
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 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_6"></A>RISK FACTORS </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Investment in the Securities involves risks. Before you invest in the Securities, you should carefully consider the risk factors below and those incorporated
into this prospectus by reference to our Annual Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT> for the year ended September&nbsp;30, 2020 and subsequent Quarterly Reports on Form <FONT STYLE="white-space:nowrap">10-Q,</FONT> and the
other information contained in this prospectus, as updated by our subsequent filings under the Exchange Act, and risk factors and other information contained in any applicable prospectus supplement. The occurrence of any of the events described in
the risk factors might cause you to lose all or part of your investment in the Securities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Risk Factors Relating to the Warrants </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>There is no public market for the Warrants to purchase common stock being offered in this offering. </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">There is no established public trading market for the Warrants being offered in this offering, and we do not expect a market to develop. In
addition, we do not intend to apply for listing of the Warrants on any national securities exchange or automated quotation system. Without an active market, the liquidity of the Warrants will be limited. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Holders of our Warrants will have no rights as a common stockholder until such holders exercise their Warrants and acquire our common stock, and, if we
elect to use &#147;net cash settlement&#148; upon exercise, such holders will receive a cash payment in lieu of shares and will not have any rights as a common stockholder. </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Until you acquire shares of our common stock upon exercise of your Warrants, you will have no rights with respect to the shares of our common
stock underlying such Warrants. Upon exercise of your Warrants, if we elect to deliver shares via &#147;net share settlement&#148;, you will be entitled to exercise the rights of a common stockholder only as to matters for which the record date
occurs after the exercise date and only with respect to the net shares delivered. If we elect to deliver cash via &#147;net cash settlement&#148;, you will receive a cash payment instead of common stock and will not have any rights as a common
stockholder upon or after exercise of your Warrants. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>The Warrants do not automatically exercise, and any Warrant not exercised prior to the
expiration date will expire unexercised. </I></B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Warrants do not automatically exercise upon expiration. You are entitled to exercise
the full number of Warrants registered in your name or any portion thereof. Any Warrant that you do not exercise prior to the expiration date will expire unexercised and you will not receive any shares of our common stock. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>The United States Treasury is a federal agency and your ability to bring a claim against Treasury as a selling securityholder under the federal
securities laws may be limited. </I></B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The doctrine of sovereign immunity, as limited by the Federal Tort Claims Act (the
&#147;FTCA&#148;), provides that claims may not be brought against the United States of America or any agency or instrumentality thereof unless specifically permitted by act of Congress. The FTCA bars claims for fraud or misrepresentation. At least
one federal court, in a case involving a federal agency, has held that the United States may assert its sovereign immunity to claims brought under the federal securities laws. In addition, Treasury and its officers, agents, and employees are exempt
from liability for any violation or alleged violation of the anti-fraud provisions of Section&nbsp;10(b) of the Exchange Act, by virtue of Section&nbsp;3(c) thereof. Accordingly, any attempt to assert such a claim against the officers, agents or
employees of Treasury for a violation of the Securities Act, or the Exchange Act resulting from an alleged material misstatement in or material omission from this prospectus, the accompanying prospectus or the registration statement of which this
prospectus is a part, or resulting from any other act or omission in connection with this offering of the Warrants by Treasury or the shares of common stock issuable upon the exercise thereof, would likely be barred. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">5 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_7"></A>USE OF PROCEEDS </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We are registering the Warrants and the Warrant Shares on behalf of the selling securityholder, to be offered and sold by the selling securityholder from time
to time. We will not receive any proceeds from the sale of the Warrants or the Warrant Shares by the selling securityholder in the offering described in this prospectus nor from the exercise of Warrants described in this prospectus, as the Warrant
Agreement governing the terms of such Warrants provides for &#147;net share settlement&#148; or &#147;net cash settlement.&#148; See &#147;Description of Warrants&#151;Exercise of the Warrants&#148; herein. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We have agreed to bear all of the expenses incurred in connection with the registration of the Warrants and the Warrant Shares. The selling securityholder
will pay or assume discounts, commissions, fees of underwriters, selling brokers or dealer managers and similar expenses, if any, incurred for the sale of the Warrants and the Warrant Shares. </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_8"></A>DESCRIPTION OF CAPITAL STOCK </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Authorized Shares of Capital Stock </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Our authorized
capital stock consists of 125,000,000 shares of common stock, no par value per share, and 5,000,000 shares of preferred stock, no par value per share. As of November&nbsp;30, 2020, there were 35,532,405 shares of common stock issued and outstanding
and no shares of preferred stock issued and outstanding. The outstanding shares of our common stock are duly authorized, validly issued, fully paid and nonassessable. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Listing </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Our common stock trades on the Nasdaq Global
Select Market under the symbol &#147;MESA.&#148; </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Voting Rights </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Each holder of our common stock is entitled to one vote for each share on all matters submitted to a vote of the shareholders, including the election of
directors, subject to any exclusive voting or director designation rights of the holders of shares of any series of our preferred stock that we may designate in the future. The rights, preferences and privileges that may be granted to holders of our
preferred stock, were we to issue such preferred stock, could include dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences, sinking fund terms and the number of shares constituting any series or the
designation of such series, any or all of which may be greater than the rights of common stock. Our issuance of preferred stock could adversely affect the voting power of holders of common stock and the likelihood that such holders will receive
dividend payments and payments upon liquidation. In addition, the issuance of preferred stock could have the effect of delaying, deferring or preventing a change of control of the Company or other corporate action. We have no present plan to issue
any such shares of preferred stock, although our board of directors (the &#147;Board&#148;) has the authority to do so without any action by our shareholders, and to fix the rights, preferences, privileges and restrictions of such preferred stock.
Our shareholders do not have cumulative voting rights in the election of directors. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Dividend Rights </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Holders of our common stock are entitled to receive dividends, if any, as may be declared from time to time by our Board out of legally available funds,
subject to preferences that may be applicable to any then-outstanding preferred stock and limitations under the RASPRO Lease Facility, GECAS Lease Facility (each as defined in our Annual Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT>
for the year ended September&nbsp;30, 2019) and the applicable provisions of the Nevada Revised Statutes (&#147;NRS&#148;). </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Rights upon Liquidation
</B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">In the event of our liquidation, dissolution or winding up, holders of our common stock will be entitled to the net assets legally available for
distribution to shareholders after the payment of all of our debts and other liabilities and the satisfaction of any liquidation preference granted to the holders of any then-outstanding shares of preferred stock.</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">6 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Other Rights and Preferences </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Our common stock has no sinking fund, redemption provisions, or preemptive, conversion, subscription or exchange rights. Holders of our common stock entitled
to vote on a matter, other than with respect to the election of directors, may only take action at special or annual meetings of the shareholders where the number of votes cast in favor of the action exceeds the number of votes cast in opposition to
the action, unless voting by classes or series is required for any action of the shareholders by the NRS, our Second Amended and Restated Articles of Incorporation (the &#147;Articles&#148;) or our Amended and Restated Bylaws (the
&#147;Bylaws&#148;), in which case the number of votes cast in favor of the action by the voting power of each such class or series must exceed the number of votes cast in opposition to the action by the voting power of each such class or series.
Shareholders entitled to vote on the election of directors at a special or annual meeting of the shareholders at which a quorum is present may elect directors by a plurality of the votes cast. We reserve the right at any time, and from time to time,
to amend, alter, change or repeal any provision contained in our Articles, with the exception of Article 11, in the manner, and subject to approval by shareholders as now or hereafter prescribed by statute, and all rights conferred upon holders of
our common stock are granted subject to this reservation. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Transfer Agent and Registrar </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ComputerShare is the transfer agent and registrar for our common stock and its telephone number is (212) <FONT STYLE="white-space:nowrap">805-7100.</FONT> </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Certain Transfer Restrictions </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Our Articles impose limits
on certain transfers of our stock, which limits are intended to preserve our ability to use our net operating loss carryforwards. Specifically, our Articles prohibit the transfer of any shares of our capital stock that would result in (i)&nbsp;any
person or entity owning 4.75% or more of our then-outstanding capital stock, or (ii)&nbsp;an increase in the percentage ownership of any person or entity owning 4.75% or more of our then-outstanding capital stock. These transfer restrictions expire
upon the earliest of (i)&nbsp;the repeal of Section&nbsp;382 of the Internal Revenue Code of 1986, as amended, or any successor statute if our Board determines that such restrictions are no longer necessary to preserve our ability to use our net
operating loss carryforwards, (ii)&nbsp;the beginning of a fiscal year to which our Board determines that no net operating losses may be carried forward, or (iii)&nbsp;such other date as determined by our Board. These transfer restrictions apply to
the beneficial owner of the shares of our capital stock. The clients of an investment advisor are treated as the beneficial owners of stock for this purpose if the clients have the right to receive dividends, if any, the power to acquire or dispose
of the shares of our capital stock, and the right to proceeds from the sale of our capital stock. Certain transactions approved by our Board, such as mergers and consolidations meeting certain requirements set forth in our Articles, are exempt from
the above-described transfer restrictions. Our Board also has the ability to grant waivers, in its discretion, with respect to transfers of our stock that would otherwise be prohibited. Our Board has agreed to waive the above-referenced restrictions
in our Articles to those persons or entities that acquire shares of our common stock in excess of the 4.75% threshold in this offering. Any transfer of common stock in violation of these restrictions will be void and will be treated as if such
transfer never occurred. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Limited Ownership and Voting by Foreign Owners </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">To comply with restrictions imposed by federal law on foreign ownership of U.S. airlines, our Articles restrict the ownership and voting of shares of our
common stock by people and entities who are not &#147;citizens of the United States&#148; as that term is defined in 49 U.S.C. &#167; 40102(a). That statute defines &#147;citizen of the United States&#148; as, among other things, a U.S. corporation,
of which the president and at least <FONT STYLE="white-space:nowrap">two-thirds</FONT> of the board of directors and other managing officers are individuals who are citizens of the United States, which is under the actual control of citizens of the
United States and in which at least 75% of the voting interest is owned or controlled by persons who are citizens of the United States. Our Articles prohibit any <FONT STYLE="white-space:nowrap">non-U.S.</FONT> citizen from owning or controlling
more than 24.9% of the aggregate votes of all outstanding shares of our common stock or 49.0% of the total number of outstanding shares of our capital stock. The restrictions imposed by the above-described ownership caps are applied to each <FONT
STYLE="white-space:nowrap">non-U.S.</FONT> citizen in reverse chronological order based on the date of registration on our foreign stock record. At no time may shares of our capital stock held by <FONT STYLE="white-space:nowrap">non-U.S.</FONT>
citizens be voted unless such shares are reflected on the foreign stock record. The voting rights of <FONT STYLE="white-space:nowrap">non-U.S.</FONT> citizens having voting control over any shares of our capital stock are subject to automatic
suspension to the extent required to ensure that we are in compliance with applicable law. In the event any transfer or issuance of shares of our capital stock to a <FONT STYLE="white-space:nowrap">non-U.S.</FONT> citizen would result in <FONT
STYLE="white-space:nowrap">non-U.S.</FONT> citizens owning more than the above-described cap amounts, such transfer or issuance will be void and of no effect. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">7 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Anti-Takeover Provisions of Our Articles, Our Bylaws and the NRS </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Certain provisions of the NRS deter hostile takeovers. Specifically, NRS 78.411 through 78.444 prohibit a publicly held Nevada corporation from engaging in a
&#147;combination&#148; with an &#147;interested stockholder&#148; for a period of two years following the date the person first became an interested shareholder, unless (with certain exceptions) the &#147;combination&#148; or the transaction by
which the person became an interested shareholder is approved in a prescribed manner. Generally, a &#147;combination&#148; includes a merger, asset or stock sale, or certain other transactions resulting in a financial benefit to the interested
shareholder. Generally, an &#147;interested stockholder&#148; is a person who, together with affiliates and associates, beneficially owns or within two years prior to becoming an &#147;interested shareholder&#148; did own, 10% or more of a
corporation&#146;s voting power. Our Articles exclude us from the restrictions imposed by these statutes. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Nevada&#146;s &#147;acquisition of controlling
interest&#148; statutes, NRS 78.378 through 78.3793, contain provisions governing the acquisition of a controlling interest in certain Nevada corporations. These &#147;control share&#148; laws provide generally that any person that acquires a
&#147;controlling interest&#148; in certain Nevada corporations may be denied voting rights, unless a majority of the disinterested stockholders of the corporation elects to restore such voting rights. These statutes provide that a person acquires a
&#147;controlling interest&#148; whenever a person acquires shares of a subject corporation that, but for the application of these provisions of the NRS, would enable that person to exercise <FONT STYLE="white-space:nowrap">(1)&nbsp;one-fifth</FONT>
or more, but less than <FONT STYLE="white-space:nowrap">one-third,</FONT> <FONT STYLE="white-space:nowrap">(2)&nbsp;one-third</FONT> or more, but less than a majority or (3)&nbsp;a majority or more, of all of the voting power of the corporation in
the election of directors. Once an acquirer crosses one of these thresholds, shares that it acquired in the transaction taking it over the threshold and within the 90 days immediately preceding the date when the acquiring person acquired or offered
to acquire a controlling interest become &#147;control shares&#148; to which the voting restrictions described above apply. Our Articles provide that these statutes do not apply to us or to any acquisition of our common stock. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Section&nbsp;78.139 of the NRS, to which we are subject, provides that directors may resist a change or potential change in control if the directors, by
majority vote of a quorum, determine that the change is opposed to, or not in, the best interests of the corporation. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">In order to ensure that our
capacity purchase agreements are not subject to early termination, our Articles prohibit the sale, transfer or assignment of our capital stock to the extent that such transfer would result in a change of control. Our Articles also grant our Board
the ability to establish one or more series of preferred stock (including convertible preferred stock), to determine, with respect to any series of preferred stock, the voting powers, designations, preferences, limitations, restrictions and relative
rights of each such series, and to authorize the issuance of shares of any such series, making it possible for our Board to issue preferred stock with voting or other rights or preferences that could impede the success of any attempt to change
control of the Company. These and other provisions may have the effect of deterring hostile takeovers or delaying changes in control or management of the Company. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">8 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_9"></A>DESCRIPTION OF WARRANTS </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following is a brief description of the terms of the Warrants being offered by the selling securityholder. This summary does not purport
to be complete in all respects. This description is subject to, and qualified in its entirety by reference to, the form of Warrant and Warrant Agreement filed by us with the SEC. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Exercise of the Warrants </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The initial
exercise price applicable to each Warrant is $3.98 per share of common stock for which the Warrant may be exercised. All or any portion of each series of Warrants may be exercised in whole or in part by surrendering the Warrant and delivering to us
a completed notice of exercise attached as an annex to the Warrant at any time or from time to time on or before 5:00 p.m., New York City time, on the fifth anniversary of the date of issuance. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon exercise of the applicable Warrant, we will elect to pay or deliver, as the case may be, to the exercising holder (a)&nbsp;cash
(&#147;Net Cash Settlement&#148;) or (b)&nbsp;shares of common stock, together with cash, if applicable, in lieu of delivering any fractional shares (&#147;Net Share Settlement&#148;). If we elect Net Cash Settlement, we will pay the exercising
holder cash equal to (i)&nbsp;the average market price (as defined in the Warrant) of a share of our common stock as of the date of exercise less $3.98 multiplied by (ii)&nbsp;the number of shares of our common stock that are issuable upon exercise
of each Warrant (the &#147;Warrant Shares&#148;). If we elect Net Share Settlement, we will deliver to the exercising holder a number of shares of common stock equal to the product of (i)&nbsp;the quotient of (x)&nbsp;the average market price of a
share of our common stock determined on the date of exercise less $3.98 divided by (y)&nbsp;the average market price of a share of our common stock determined on the date of exercise, multiplied by (ii)&nbsp;the number of Warrant Shares issuable
upon exercise of the Warrant, together with cash, if applicable, in lieu of delivering any fractional shares. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>No Fractional Shares </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No fractional shares or scrip representing fractional shares will be issued upon the exercise of the Warrants. In lieu of any fractional share
to which the holder would otherwise be entitled, the holder will be entitled to receive a cash payment determined according to the formula set forth in the Warrant. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Right as a Stockholder </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Holders of the
Warrants will not have the rights or privileges of holders of our common stock, including any voting rights, until they exercise their Warrants. Treasury has agreed not to exercise any voting rights associated with the Warrant Shares, but such
restriction would not apply to future purchasers of the Warrant Shares. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Adjustments to the Warrants </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to the terms of the Warrants, Warrant Shares and the exercise price will be adjusted upon occurrence of certain events as follows.
</P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
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<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt"><I>In the case of stock splits, subdivisions, reclassifications or combinations of common stock</I>. If we
declare and pay a dividend or make a distribution on our common stock in shares of our common stock, subdivide or reclassify the outstanding shares of our common stock into a greater number of shares, or combine or reclassify the outstanding shares
of our common stock into a smaller number of shares, the number of Warrant Shares at the time of the record date for such dividend or distribution or the effective date of such subdivision, combination or reclassification will be proportionately
adjusted so that the holder of a Warrant after such date will be entitled to purchase the number of shares of our common stock that it would have owned or been entitled to receive in respect of the number of Warrant Shares had such Warrant been
exercised immediately prior to such date. The exercise price in effect at the time of the record date for such dividend or distribution or the effective date of such subdivision, combination or reclassification will be adjusted to the number
obtained by dividing (x)&nbsp;the product of (1)&nbsp;the number of Warrant Shares issuable upon the exercise of the Warrant before such adjustment and (2)&nbsp;the exercise price in effect immediately prior to the record or effective date, as the
case may be, for the dividend, distribution, subdivision, combination or reclassification giving rise to the adjustment by (y)&nbsp;the new number of Warrant Shares issuable upon exercise of the Warrant determined pursuant to the immediately
preceding sentence. </P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">9 </P>

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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt"><I>In the case of certain issuances of common stock or convertible securities</I>. If we issue shares of common
stock (or rights or warrants or other securities exercisable or convertible into or exchangeable (collectively, a &#147;conversion&#148;) for shares of common stock) (collectively, &#147;convertible securities&#148;) (other than in permitted
transactions (as defined below) or a transaction to which subsection (A)&nbsp;of this bullet point is applicable) without consideration or at a consideration per share (or having a conversion price per share) that is less than 90% of the average
market price determined as of the date of the agreement on pricing such shares (or such convertible securities) then, in such event: </P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:9%; font-size:10pt; font-family:Times New Roman">(A) the number of Warrant Shares issuable upon the exercise of the Warrant immediately prior to the date of the agreement on pricing of such
shares (or of such convertible securities) (the &#147;initial number&#148;) will be increased to the number obtained by multiplying the initial number by a fraction (A)&nbsp;the numerator of which will be the sum of (x)&nbsp;the number of shares of
common stock outstanding on such date and (y)&nbsp;the number of additional shares of common stock issued (or into which convertible securities may be exercised or convert) and (B)&nbsp;the denominator of which will be the sum of (I)&nbsp;the number
of shares of common stock outstanding on such date and (II)&nbsp;the number of shares of common stock which the aggregate consideration receivable by us for the total number of shares of common stock so issued (or into which convertible securities
may be exercised or convert) would purchase at the average market price determined as of the date of the agreement on pricing such shares (or such convertible securities); and (B)&nbsp;the exercise price payable upon exercise of the Warrant will be
adjusted by multiplying such exercise price in effect immediately prior to the date of the agreement on pricing of such shares (or of such convertible securities) by a fraction, the numerator of which will be the number of shares of common stock
issuable upon exercise of the Warrant prior to such date and the denominator of which will be the number of shares of common stock issuable upon exercise of the Warrant immediately after the adjustment described in the first bullet point above; and
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:9%; font-size:10pt; font-family:Times New Roman">(B) for purposes of the foregoing, the aggregate consideration receivable by us in connection with the issuance of such shares of common
stock or convertible securities will be deemed to be equal to the sum of the net offering price (including the fair market value (as defined in the Warrant) of any <FONT STYLE="white-space:nowrap">non-cash</FONT> consideration and after deduction of
any related expenses payable to third parties) of all such securities plus the minimum aggregate amount, if any, payable upon exercise or conversion of any such convertible securities into shares of common stock and &#147;permitted
transactions&#148; will mean issuances (i)&nbsp;as consideration for or to fund the acquisition of businesses and/or related assets, (ii)&nbsp;in connection with employee benefit plans and compensation related arrangements in the ordinary course and
consistent with past practice approved by the Board, (iii)&nbsp;in connection with a public or broadly marketed offering and sale of common stock or convertible securities for cash conducted by us or one of our affiliates pursuant to registration
under the Securities Act or Rule 144A thereunder on a basis consistent with capital raising transactions by comparable institutions and (iv)&nbsp;in connection with the exercise of preemptive rights on terms existing as of the issue date. Any
adjustment made pursuant to this provision will become effective immediately upon the date of such issuance. </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt"><I>In the case of other distributions</I>.&nbsp;If we fix a record date for the making of a distribution to all
holders of shares of our common stock of securities, evidences of indebtedness, assets, cash, rights or warrants (excluding dividends of our common stock and other dividends or distributions referred to in the first bullet point above), in each such
case, the exercise price in effect prior to such record date will be reduced immediately thereafter to the price determined by multiplying the exercise price in effect immediately prior to the reduction by the quotient of (x)&nbsp;the average market
price of the common stock determined as of the first date on which the common stock trades regular way on the principal national securities exchange on which the common stock is listed or admitted to trading without the right to receive such
distribution, minus the amount of cash and/or the fair market value of the securities, evidences of indebtedness, assets, rights or warrants to be so distributed in respect of one share of common stock (such amount and/or fair market value, the
&#147;per share fair market value&#148;) divided by (y)&nbsp;the average market price specified in clause&nbsp;(x). Any such adjustment will be made successively whenever such a record date is fixed. In such event, the number of Warrant Shares
issuable upon the exercise of the Warrant will be increased to the number obtained by dividing (x)&nbsp;the product of (1)&nbsp;the number of Warrant Shares issuable upon the exercise of the Warrant before such adjustment, and (2)&nbsp;the exercise
price in effect immediately prior to the distribution giving rise to this adjustment by (y)&nbsp;the new exercise price determined in accordance with the immediately preceding sentence. In the event that such distribution is not so made, the
exercise price and the number of Warrant Shares issuable upon exercise of the Warrant then in effect will be readjusted, effective as of the date when the Board determines not to distribute such shares, evidences of indebtedness, assets, rights,
cash or warrants, as the case may be, to the exercise price that would then be in effect and the number of Warrant Shares that would then be issuable upon exercise of the Warrant if such record date had not been fixed. </P></TD></TR></TABLE>
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<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt"><I>In the case of a pro rata repurchase of common stock</I>.&nbsp;A &#147;pro rata repurchase&#148; is defined as
any purchase of shares of our common stock by us or an affiliate of ours pursuant to any tender offer or exchange offer subject to Section&nbsp;13(e) or 14(e) of the Exchange Act, or Regulation&nbsp;14E thereunder, or any other offer available to
substantially all holders of our common stock effected while the Warrant is outstanding. If we effect a pro rata repurchase of common stock, then the exercise price will be reduced to the price determined by multiplying the exercise price in effect
immediately prior to the effective date of such pro rata repurchase by a fraction of which the numerator will be (i)&nbsp;the product of (x)&nbsp;the number of shares of common stock outstanding immediately before such pro rata repurchase and
(y)&nbsp;the average market price of a share of common stock determined as of the date of the first public announcement by us or any of our affiliates of the intent to effect such pro rata repurchase, minus (ii)&nbsp;the aggregate purchase price of
the pro rata repurchase, and of which the denominator will be the product of (i)&nbsp;the number of shares of common stock outstanding immediately prior to such pro rata repurchase minus the number of shares of common stock so repurchased and
(ii)&nbsp;the average market price per share of common stock determined as of the date of the first public announcement by us or any of our affiliates of the intent to effect such pro rata repurchase. In such event, the number of shares of common
stock issuable upon the exercise of the Warrant will be increased to the number obtained by dividing (x)&nbsp;the product of (1)&nbsp;the number of Warrant Shares issuable upon the exercise of the Warrant before such adjustment, and (2)&nbsp;the
exercise price in effect immediately prior to the pro rata repurchase giving rise to this adjustment by (y)&nbsp;the new exercise price determined in accordance with the immediately preceding sentence. The &#147;effective date&#148; of a pro rata
repurchase means the date of acceptance of shares for purchase or exchange by us under any tender offer or exchange offer which is a pro rata repurchase or the date of purchase of any pro rata repurchase that is not a tender offer or exchange offer.
</P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%">&nbsp;</TD>
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<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt"><I>In the case of a merger, consolidation, statutory share exchange or similar transaction that requires the
approval of our stockholders (any such transaction, a &#147;business combination&#148;) or a reclassification of our common stock</I>. In the event of any business combination or reclassification of common stock (other than a reclassification of
common stock referred to in the first bullet point above), the holder&#146;s right to receive Warrant Shares upon exercise of the Warrant will be converted into the right to exercise the Warrant to acquire the number of shares of stock or other
securities or property (including cash) which the common stock issuable (at the time of such business combination or reclassification) upon exercise of the Warrant immediately prior to such business combination or reclassification would have been
entitled to receive upon consummation of such business combination or reclassification. In determining the kind and amount of stock, securities or the property receivable upon exercise of the Warrant following the consummation of such business
combination, if the holders of common stock have the right to elect the kind or amount of consideration receivable upon consummation of such business combination, then the consideration that the holder will be entitled to receive upon exercise will
be deemed to be the types and amounts of consideration received by the majority of all holders of the shares of common stock that affirmatively make an election (or of all such holders if none make an election). </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If more than one adjustment provision applies to a single event, the adjustment provision that produces the largest adjustment with respect to
such event will be applied, and no single event will cause an adjustment under more than one adjustment provision so as to result in duplication. All such adjustments will be made to the nearest <FONT STYLE="white-space:nowrap">one-tenth</FONT>
(1/10th) of a cent or to the nearest <FONT STYLE="white-space:nowrap">one-hundredth</FONT> (1/100th) of a share, as the case may be. No adjustment in the exercise price or the number of shares issuable upon exercise of a Warrant will be made if the
amount of such adjustment would be less than $0.01 or <FONT STYLE="white-space:nowrap">one-tenth</FONT> (1/10th) of a share of our common stock, but any such amount will be carried forward and an adjustment with respect thereto will be made at the
time of and together with any subsequent adjustment which, together with such amount and any other amount or amounts so carried forward, will aggregate $0.01 or 1/10th of a share of our common stock, or more. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If an adjustment in the exercise price made in accordance with the adjustment provisions above would reduce the exercise price to an amount
below the par value of our common stock, then that adjustment will reduce the exercise price to that par value. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Waivers, Amendments and Assignments
</B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Any term of the Warrant may be amended or waived only with our written consent and the written consent of the holder. Purchasers of
the Warrants will have no rights under the Warrant Agreement unless we agree to assign such rights, except with respect to certain registration rights provided for under the Warrant Agreement in connection with a transfer to a transferee of a total
number of Warrant Shares and/or Warrants exercisable for at least 20% of the total number of Warrant Shares. We may assign our rights and obligations under the Warrant Agreement in connection with certain business combinations, as defined in the
Warrant. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">11 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_10"></A>SELLING SECURITYHOLDER </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In October 2020, we agreed to issue in a private placement to Treasury Warrants to purchase a number of shares of our common stock determined
by a formula set forth in the Warrant Agreement. Treasury acquired the Warrants in consideration for providing financial assistance to us pursuant to the Treasury Loan Agreement. We are registering the resale or other disposition from time to time
by the selling securityholder named herein of (i)&nbsp;Warrants to purchase up to 4,899,497 shares of our common stock and (ii) 4,899,497 shares of our common stock issuable upon exercise of the Warrants. Subject to compliance with applicable
securities laws and the terms of the Warrant Agreement, Treasury is permitted to transfer, sell, assign or otherwise dispose of all or a portion of the Warrants (or the shares of common stock issuable upon exercise of the Warrants) at any time. The
Warrants are exercisable until the fifth anniversary of the issuance date of the applicable Warrant. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to the Warrant Agreement,
we agreed to file a registration statement, of which this prospectus is a part, with the SEC to register the disposition of the maximum number of Warrants and Warrant Shares that may be issued to Treasury pursuant to the Warrant Agreement and the
Warrants. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The table below sets forth information as of November&nbsp;30, 2020, with respect to the selling securityholder for whom we are
registering Warrants and Warrant Shares for sale to the public, the number of shares of common stock owned by the selling securityholder prior to this offering, the percentage of common stock owned by the selling securityholder prior to this
offering, the number of Warrants and Warrant Shares being offered pursuant to this prospectus, the number of shares of our common stock owned by the selling securityholder upon completion of this offering, assuming all such shares are sold, and the
percentage of common stock owned by the selling securityholder after this offering, assuming all such shares are sold. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In the table
below, the number of shares of common stock that may be offered pursuant to this prospectus is the number of shares of common stock issuable pursuant to the Warrants. Pursuant to Rule 416 under the Securities Act, this prospectus also covers any
additional shares of our common stock that may become issuable in connection with shares of common stock by reason of a stock dividend, stock split or other similar transaction effected without our receiving any cash or other value, which results in
an increase in the number of shares of our common stock outstanding. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As used in this prospectus, the term &#147;selling
securityholder&#148; includes the selling securityholder listed below, and any donees, pledgees, transferees or other successors in interest selling the Warrants or Warrant Shares received after the date of this prospectus from the selling
securityholder as a gift, pledge, or other <FONT STYLE="white-space:nowrap">non-sale</FONT> related transfer. The number of shares in the column &#147;Number of Warrant Shares Offered&#148; represents all of the Warrant Shares that the selling
securityholder may offer under this prospectus. The selling securityholder may sell some, all or none of its Warrants or Warrant Shares. The selling securityholder may sell or transfer all or a portion of its Warrants or Warrant Shares pursuant to
an available exemption from the registration requirements of the Securities Act. We do not know how long the selling securityholder will hold the Warrants or Warrant Shares before selling them, and we currently have no agreements, arrangements or
other understandings with the selling securityholder regarding the sale of any of the Securities. Pursuant to the Warrant Agreement, Treasury must provide 30 days&#146; notice to us prior to the sale of the Warrants or any portion thereof. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Beneficial ownership is determined in accordance with Rule <FONT STYLE="white-space:nowrap">13d-3(d)</FONT> promulgated by the SEC under the
Exchange Act. The percentage of shares beneficially owned prior to the offering is based on 35,532,405 shares of our common stock outstanding as of November&nbsp;30, 2020. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:8pt" ALIGN="center">


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<TD></TD>
<TD></TD>
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<TD VALIGN="bottom" WIDTH="1%"></TD>
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<TD VALIGN="bottom" WIDTH="1%"></TD>
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<TD></TD>
<TD></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Shares Beneficially<BR>Owned Prior to the<BR>Offering</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ROWSPAN="2">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ROWSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Number of<BR>Warrant<BR>Shares<BR>Offered</B></TD>
<TD VALIGN="bottom" ROWSPAN="2">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD COLSPAN="2" VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="6" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Shares&nbsp;Beneficially<BR>Owned After the<BR>Offering <SUP STYLE="font-size:85%; vertical-align:top">(1)</SUP></B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; "><B>Selling Securityholder</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Number</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>%</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Number of<BR>Warrants<BR>Offered</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Number</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>%</B></TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">United States Department of the Treasury</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,899,497</TD>
<TD NOWRAP VALIGN="bottom"><SUP STYLE="font-size:85%; vertical-align:top">(2)</SUP>&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">13.7</TD>
<TD NOWRAP VALIGN="bottom">%&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,899,497</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">4,899,497</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD NOWRAP VALIGN="bottom" ALIGN="right">&#151;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">0.0</TD>
<TD NOWRAP VALIGN="bottom">%&nbsp;</TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">(1)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Assumes the selling securityholder sells all of its Warrants or shares of our common stock offered pursuant to
this prospectus. </P></TD></TR></TABLE>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">(2)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Represents 4,899,497 Warrant Shares issuable to Treasury pursuant to the Warrants. </P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">12 </P>

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<h5 align="left"><a href="#toc">Table of Contents</a></h5>


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_11"></A>PLAN OF DISTRIBUTION </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We are registering the Warrants previously issued and the Warrant Shares issuable upon exercise of the Warrants to permit the resale of these
Warrants and the Warrant Shares by the holders thereof and holders of the Warrants and Warrant Shares from time to time after the date of this prospectus. We will not receive any of the proceeds from the sale by the selling securityholder of the
Securities. We will bear all fees and expenses incident to our obligation to register the Securities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The selling securityholder, which
as used herein includes any of its pledgees, donees, transferees, assignees and successors, may from time to time offer and sell some or all of the Warrants or Warrant Shares covered by this prospectus. To the extent required, this prospectus may be
amended and supplemented from time to time to describe a specific plan of distribution. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The selling securityholder may offer the
Securities from time to time, either in increments or in a single transaction. The selling securityholder may also decide not to sell all the Securities it is allowed to sell under this prospectus. The selling securityholder will act independently
of us in making decisions with respect to the timing, manner and size of each sale. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The selling securityholder and any of its pledgees,
donees, transferees, assignees and <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">successors-in-interest</FONT></FONT> may, from time to time, sell any or all of their Securities on any stock exchange, market or trading facility
on which the Securities are traded or quoted, in the over the counter market or in private transactions. These sales may be at market prices prevailing at the time of sale, at prices related to such prevailing market prices, at fixed prices or
negotiated prices. The selling securityholder may use any one or more of the following methods when selling the Securities: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">ordinary brokerage transactions and transactions in which a broker-dealer solicits purchasers;
</P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">block trades in which a broker-dealer will attempt to sell the shares as agent but may position and resell a
portion of the block as principal to facilitate the transaction; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">purchases by a broker-dealer as principal and resale by the broker-dealer for its account; </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">an exchange distribution in accordance with the rules of the applicable exchange; </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">privately negotiated transactions; </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">to cover short sales made after the date that this registration statement becomes effective;
</P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">an agreement with broker-dealers to sell as agent for the selling securityholders a specified number of such
shares at a stipulated price per share or otherwise at the prevailing market price; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">through put or call options, including the writing of exchange-traded call options, or other hedging transactions
related to ordinary shares; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">a combination of any such methods of sale; and </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">any other method permitted pursuant to applicable law. </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The selling securityholder may also sell the Securities under Rule&nbsp;144 under the Securities Act, if available, rather than under this
prospectus. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Broker-dealers engaged by the selling securityholder may arrange for other brokers-dealers to participate in sales.
Broker-dealers may receive commissions or discounts from the selling securityholder (or, if any broker-dealer acts as agent for the purchaser of Warrants or Warrant Shares, from the purchaser) in amounts to be negotiated, but, except as set forth in
a supplement to this prospectus, in the case of an agency transaction not in excess of a customary brokerage commission in compliance with FINRA Rule 2440; and in the case of a principal transaction a markup or markdown in compliance with FINRA <FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">IM-2440-1.</FONT></FONT> </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">13 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In connection with the sale of the Securities covered hereby, the selling securityholder may
enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of the securities in the course of hedging the positions they assume. The selling securityholder may also sell securities
short and deliver these securities to close out their short positions, or loan or pledge the Securities to broker-dealers that in turn may sell these securities. The selling securityholder may also enter into option or other transactions with
broker-dealers or other financial institutions or create one or more derivative securities which require the delivery to such broker-dealer or other financial institution of securities offered by this prospectus, which securities such broker-dealer
or other financial institution may resell pursuant to this prospectus. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The selling securityholder and any broker-dealers or agents that
are involved in selling the Securities may be deemed to be &#147;underwriters&#148; within the meaning of the Securities Act in connection with such sales. In such event, any commissions received by such broker-dealers or agents and any profit on
the resale of the Securities purchased by them may be deemed to be underwriting commissions or discounts under the Securities Act. We are requesting that the selling securityholder inform us that it does not have any written or oral agreement or
understanding, directly or indirectly, with any person to distribute the Securities. We will pay certain fees and expenses incurred by us incident to the registration of the Securities. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Because the selling securityholder may be deemed to be an &#147;underwriter&#148; within the meaning of the Securities Act, it may be subject
to the prospectus delivery requirements of the Securities Act, including Rule&nbsp;172 thereunder. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We intend to keep this prospectus
effective until the earliest of the date on which the Securities (i)&nbsp;have been sold pursuant to an effective registration statement under the Securities Act, (ii)&nbsp;may be sold pursuant to Rule&nbsp;144 without limitation thereunder on
volume or manner of sale, without the requirement for us to be in compliance with the current public information requirement under Rule&nbsp;144 under the Securities Act or any other rule of similar effect, (iii)&nbsp;shall have ceased to be
outstanding or (iv)&nbsp;have been sold in a private transaction in which the transferor&#146;s rights under the Warrant Agreement are not assigned to the transferee of the Securities. The resale securities will be sold only through registered or
licensed brokers or dealers if required under applicable state securities laws. In addition, in certain states, the resale securities covered hereby may not be sold unless they have been registered or qualified for sale in the applicable state or an
exemption from the registration or qualification requirement is available and is complied with. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Under applicable rules and regulations
under the Exchange Act, any person engaged in the distribution of the resale securities may not simultaneously engage in market making activities with respect to the common stock for the applicable restricted period, as defined in Regulation&nbsp;M,
prior to the commencement of the distribution. In addition, the selling securityholder will be subject to applicable provisions of the Exchange Act and the rules and regulations thereunder, including Regulation&nbsp;M, which may limit the timing of
purchases and sales of the common stock by the selling securityholder or any other person. We will make copies of this prospectus available to the selling securityholder and are informing the selling securityholder of the need to deliver a copy of
this prospectus to each purchaser at or prior to the time of the sale (including by compliance with Rule&nbsp;172 under the Securities Act). </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">14 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_12"></A>LEGAL MATTERS </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The legality of the common stock issuable upon exercise of the warrants in respect of which this prospectus is being delivered will be passed
on for us by Brownstein Hyatt Farber Schreck, LLP, Las Vegas, Nevada. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The legality of the warrants in respect of which this prospectus is
being delivered will be passed on for us by Faegre Drinker Biddle &amp; Reath LLP. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="tx52203_13"></A>EXPERTS </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The consolidated financial statements at September 30, 2020, and for the period ended September 30, 2020, incorporated by reference in this
Prospectus and Registration Statement have been audited by Ernst &amp; Young LLP, independent registered public accounting firm, as set forth in their report thereon incorporated by reference herein, and are included in reliance upon such report
given on the authority of such firm as experts in accounting and auditing. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The financial statements as of September 30, 2019 and for each
of the two years in the period ended September 30, 2019, incorporated in this Prospectus by reference from the Company&#146;s Annual Report on Form 10-K for the year ended September 30, 2020 have been audited by Deloitte &amp; Touche LLP, an
independent registered public accounting firm, as stated in their report, which is incorporated herein by reference. Such financial statements have been so incorporated in reliance upon the report of such firm given upon their authority as experts
in accounting and auditing. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">15 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">
<h5 align="left"><a href="#toc">Table of Contents</a></h5>


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="line-height:2.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:2.00pt solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>4,899,497 Shares of Common Stock
</B></P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>Warrants to Purchase 4,899,497 Shares of Common Stock </B></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>MESA AIR GROUP, INC. </B></P> <P STYLE="font-size:24pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Prospectus
</B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>April&nbsp;28, 2021 </B></P> <P STYLE="font-size:30pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="line-height:4.5pt;margin-top:0pt;margin-bottom:2pt;border-bottom:2.00pt solid #000000">&nbsp;</P>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
