<SEC-DOCUMENT>0001104659-22-022367.txt : 20220214
<SEC-HEADER>0001104659-22-022367.hdr.sgml : 20220214
<ACCEPTANCE-DATETIME>20220214135458
ACCESSION NUMBER:		0001104659-22-022367
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20220214
DATE AS OF CHANGE:		20220214
GROUP MEMBERS:		SUSQUEHANNA INVESTMENT GROUP

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Riot Blockchain, Inc.
		CENTRAL INDEX KEY:			0001167419
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				841553387
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-79102
		FILM NUMBER:		22629156

	BUSINESS ADDRESS:	
		STREET 1:		3855 AMBROSIA STREET, SUITE 301
		CITY:			CASTLE ROCK
		STATE:			CO
		ZIP:			80109
		BUSINESS PHONE:		303-794-2000

	MAIL ADDRESS:	
		STREET 1:		3855 AMBROSIA STREET, SUITE 301
		CITY:			CASTLE ROCK
		STATE:			CO
		ZIP:			80109

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Bioptix, Inc.
		DATE OF NAME CHANGE:	20161201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Venaxis, Inc.
		DATE OF NAME CHANGE:	20121218

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AspenBio Pharma, Inc.
		DATE OF NAME CHANGE:	20051110

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUSQUEHANNA SECURITIES, LLC
		CENTRAL INDEX KEY:			0001446580
		IRS NUMBER:				232754552

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		401 CITY AVENUE, SUITE 220
		CITY:			BALA CYNWYD
		STATE:			PA
		ZIP:			19004
		BUSINESS PHONE:		610-617-2600

	MAIL ADDRESS:	
		STREET 1:		401 CITY AVENUE, SUITE 220
		CITY:			BALA CYNWYD
		STATE:			PA
		ZIP:			19004

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUSQUEHANNA SECURITIES
		DATE OF NAME CHANGE:	20130709

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Susquehanna Securities
		DATE OF NAME CHANGE:	20080930
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>tm225754d12_sc13ga.htm
<DESCRIPTION>SCHEDULE 13G/A
<TEXT>
<HTML>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
No</FONT>: 767292105</P>

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

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 23%; padding-right: 0.7pt; padding-bottom: 0.7pt; padding-left: 0.7pt">&nbsp;</TD>
    <TD STYLE="width: 54%; padding-right: 0.7pt; padding-bottom: 0.7pt; padding-left: 0.7pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SECURITIES
    AND EXCHANGE COMMISSION</B></FONT></TD>
    <TD STYLE="width: 23%; padding-right: 0.7pt; padding-bottom: 0.7pt; padding-left: 0.7pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.7pt; padding-bottom: 0.7pt; padding-left: 0.7pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.7pt; padding-bottom: 0.7pt; padding-left: 0.7pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Washington,
    D.C. 20549</B></FONT></TD>
    <TD STYLE="padding-right: 0.7pt; padding-bottom: 0.7pt; padding-left: 0.7pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.7pt; padding-bottom: 0.7pt; padding-left: 0.7pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.7pt; padding-bottom: 0.7pt; padding-left: 0.7pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 0.7pt; padding-bottom: 0.7pt; padding-left: 0.7pt">&nbsp;</TD></TR>
  </TABLE>





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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Rule&nbsp;13d-102)</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>INFORMATION TO BE INCLUDED IN STATEMENTS FILED
PURSUANT</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>TO &sect; 240.13d-1(b), (c)&nbsp;AND (d)&nbsp;AND
AMENDMENTS THERETO FILED</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>PURSUANT TO &sect; 240.13d-2.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Amendment No.&nbsp;1)*</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt"><B>Riot
Blockchain,&nbsp;Inc.</B></FONT></P>

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

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

<P STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Common Stock, no par value</B></P>

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

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

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

<P STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>767292105</B></P>

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

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

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

<P STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>December&nbsp;31, 2021</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Date of Event Which Requires Filing of this Statement)</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box to designate the rule&nbsp;pursuant to which
this Schedule is filed:</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR>
    <TD STYLE="width: 9%; padding: 3pt; text-align: center"><FONT STYLE="font-family: Wingdings; font-size: 10pt">x</FONT></TD>
    <TD STYLE="width: 91%; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Rule&nbsp;13d-1(b)</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt; text-align: center"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Rule&nbsp;13d-1(c)</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt; text-align: center"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Rule&nbsp;13d-1(d)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>




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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">*The remainder of this cover page&nbsp;shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information
which would alter the disclosures provided in a prior cover page.</P>

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

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

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

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

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



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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
No</FONT>: 767292105</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Names
    of Reporting Persons<BR>
    Susquehanna Investment Group</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="5" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)&nbsp;</FONT></TD>
    <TD COLSPAN="4" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Check the Appropriate
    Box if a Member of a Group (See Instructions)</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt">&nbsp;</TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt">&nbsp;</TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="5" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    Use Only </FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="5" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Citizenship
    or Place of Organization <BR>
    Pennsylvania</FONT></TD></TR>
  <TR>
    <TD COLSPAN="3" STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="padding: 3pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="3" ROWSPAN="7" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Number
    of<BR>
    Shares<BR>
    Beneficially<BR>
    Owned by<BR>
    Each<BR>
    Reporting<BR>
    Person With</FONT></TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5)</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sole
    Voting Power <BR>
    144,467 (1)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6)</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Shared
    Voting Power <BR>
    4,763,591 (1)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7)</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sole
    Dispositive Power <BR>
    144,467 (1)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Shared
    Dispositive Power <BR>
    4,763,591 (1)</FONT></TD></TR>
  <TR>
    <TD COLSPAN="5" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(9)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Aggregate
    Amount Beneficially Owned by Each Reporting Person<BR>
    4,763,591 (1)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="5" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(10)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Check
    box if the Aggregate Amount in Row (9)&nbsp;Excludes Certain Shares (See Instructions)&nbsp; <FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="5" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Percent
    of Class&nbsp;Represented by Amount in Row (9)<BR>
    4.0%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="5" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Type
    of Reporting Person (See Instructions)<BR>
    BD, PN</FONT></TD></TR>
  <TR>
    <TD STYLE="width: 5%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 3%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 82%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(1)&nbsp;Susquehanna Investment Group and Susquehanna Securities,
LLC are affiliated independent broker-dealers which may be deemed a group.&nbsp; For purposes of this report, we have indicated that
each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting
persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons.&nbsp;
Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.<BR STYLE="clear: both"></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
No</FONT>: 767292105</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Names
    of Reporting Persons<BR>
    Susquehanna Securities, LLC</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)&nbsp;</FONT></TD>
    <TD COLSPAN="4" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Check the Appropriate
    Box if a Member of a Group (See Instructions)</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    Use Only </FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Citizenship
    or Place of Organization <BR>
    Delaware</FONT></TD></TR>
  <TR>
    <TD COLSPAN="3" STYLE="padding: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="3" ROWSPAN="7" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Number
    of<BR>
    Shares<BR>
    Beneficially<BR>
    Owned by<BR>
    Each<BR>
    Reporting<BR>
    Person With</FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5)</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sole
    Voting Power <BR>
    4,619,124 (1)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6)</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Shared
    Voting Power <BR>
    4,763,591 (1)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7)</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sole
    Dispositive Power <BR>
    4,619,124 (1)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Shared
    Dispositive Power <BR>
    4,763,591 (1)</FONT></TD></TR>
  <TR>
    <TD COLSPAN="6" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(9)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Aggregate
    Amount Beneficially Owned by Each Reporting Person<BR>
    4,763,591 (1)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(10)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Check
    box if the Aggregate Amount in Row (9)&nbsp;Excludes Certain Shares (See Instructions)&nbsp; <FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Percent
    of Class&nbsp;Represented by Amount in Row (9)<BR>
    4.0%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12)</FONT></TD>
    <TD COLSPAN="4" STYLE="vertical-align: top; border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Type
    of Reporting Person (See Instructions)<BR>
    BD, OO</FONT></TD></TR>
  <TR>
    <TD STYLE="width: 3%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 4%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 82%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(1)&nbsp;Susquehanna Investment Group and Susquehanna Securities, LLC are affiliated independent broker-dealers which may be deemed a
group.&nbsp; For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect
to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares
beneficially owned by all of the reporting persons.&nbsp; Each of the reporting persons disclaims beneficial ownership of shares owned
directly by another reporting person.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
No</FONT>: 767292105</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD COLSPAN="6" STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 1.</B></FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Issuer</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Riot Blockchain,&nbsp;Inc. (the &ldquo;Company&rdquo;)</P></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Address of Issuer&rsquo;s Principal Executive Offices</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">202 6th Street, Suite&nbsp;401, Castle Rock, CO 80104</P></TD></TR>
  <TR>
    <TD COLSPAN="6" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
    2(a).</B></FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Person Filing</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">This statement is filed by the entity listed below (referred to
    herein as the &ldquo;Reporting Person&rdquo;) with respect to the shares of common stock, no par value, of the Company (the &ldquo;Shares&rdquo;).</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.25in">(i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Susquehanna
    Investment Group</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.25in">(ii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Susquehanna
    Securities, LLC</P></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
    2(b).</B></FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Address of Principal Business Office or, if none, Residence</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The address of the principal business office of each of Susquehanna
    Investment Group and Susquehanna Securities, LLC is:</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">401 E. City Avenue</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Suite&nbsp;220</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Bala Cynwyd, PA 19004</P></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
    2(c).</B></FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Citizenship<BR>
    Citizenship is set forth in Row 4 of the cover page&nbsp;for the Reporting Person and is incorporated herein by reference.</FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
    2(d).</B></FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title
    of Class&nbsp;of Securities<BR>
    Common Stock, no par value</FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
    2(e)</B></FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding: 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP Number</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">767292105</P></TD></TR>
  <TR>
    <TD COLSPAN="6" STYLE="padding: 3pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 3.</B></FONT></TD>
    <TD COLSPAN="5" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>If this statement
    is filed pursuant to &sect;&sect;240.13d-1(b)&nbsp;or 240.13d-2(b)&nbsp;or (c), check whether the person filing is a:</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt">x</FONT></TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Broker or dealer registered under
    section 15 of the Act (15 U.S.C. 78o).</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bank as defined in section 3(a)(6)&nbsp;of
    the Act (15 U.S.C. 78c).</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Insurance company as defined in
    section 3(a)(19) of the Act (15 U.S.C. 78c).</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)</FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Investment
    company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)</FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">An investment
    adviser in accordance with &sect;240.13d-1(b)(1)(ii)(E);</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)</FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">An employee
    benefit plan or endowment fund in accordance with &sect;240.13d-1(b)(1)(ii)(F);</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(g)</FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A parent
    holding company or control person in accordance with &sect;240.13d-1(b)(1)(ii)(G);</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(h)</FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A savings
    association as defined in Section&nbsp;3(b)&nbsp;of the Federal Deposit Insurance Act (12 U.S.C. 1813);</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)</FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A church
    plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15
    U.S.C. 80a-3);</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(j)</FONT></TD>
    <TD COLSPAN="2" STYLE="padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A non-U.S. institution in accordance
    with &sect; 240.13d&ndash;1(b)(1)(ii)(J);</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(k)</FONT></TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; padding: 3pt 3pt 3pt 22pt; text-indent: -22pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Group, in accordance with rule&nbsp;13d&ndash;1(b)(1)(ii)(K).</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 3pt; padding-right: 3pt; padding-bottom: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 3pt">&nbsp;</TD>
    <TD STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If filing as a non-U.S. institution
    in accordance with &sect; 240.13d&ndash;1(b)(1)(ii)(J), please specify the type of institution:<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></FONT></TD></TR>
  <TR>
    <TD STYLE="width: 7%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 2%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 2%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 2%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 2%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 85%"><FONT STYLE="font-size: 1pt">&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
No</FONT>: 767292105</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="width: 9%; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 4.</B></FONT></TD>
    <TD STYLE="width: 91%; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Ownership</B></FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Provide the following
    information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1. </FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding: 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.35in">The information required by Items 4(a)&nbsp;- (c)&nbsp;is
    set forth in Rows 5 - 11 of the cover page&nbsp;for the Reporting Person and is incorporated herein by reference.</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.35in">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.35in">The number of Shares reported as beneficially owned
    by Susquehanna Securities, LLC includes options to buy 1,631,800 Shares. The number of Shares reported as beneficially owned by Susquehanna
    Investment Group includes options to buy 109,700 Shares.</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.35in">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.35in">The Company&rsquo;s Prospectus Supplement (to Prospectus
    dated August&nbsp;31, 2021, Registration No.&nbsp;333-259212), filed on December&nbsp;1, 2021, indicates that there were 116,583,400
    Shares outstanding as of December&nbsp;1, 2021.</P></TD></TR>
  <TR>
    <TD COLSPAN="2"><FONT STYLE="font-size: 11pt">&nbsp;</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 5.</B></FONT></TD>
    <TD STYLE="padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Ownership of Five Percent or
    Less of a Class</B></FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If this statement
    is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than
    five percent of the class of securities, check the following:&nbsp;&nbsp; </FONT><FONT STYLE="font-family: Wingdings">x</FONT></TD></TR>
  <TR>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 6.</B></FONT></TD>
    <TD STYLE="padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Ownership of More than Five
    Percent on Behalf of Another Person</B></FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding: 3pt 3pt 3pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    applicable.</FONT></TD></TR>
  <TR>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 7.</B></FONT></TD>
    <TD STYLE="padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Identification and Classification
    of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person</B></FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding: 3pt 3pt 3pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    applicable.</FONT></TD></TR>
  <TR>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 8.</B></FONT></TD>
    <TD STYLE="padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Identification and Classification
    of Members of the Group</B></FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding: 3pt 3pt 3pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    applicable.</FONT></TD></TR>
  <TR>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 9.</B></FONT></TD>
    <TD STYLE="padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Notice of Dissolution of Group</B></FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding: 3pt 3pt 3pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    applicable.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
No</FONT>: 767292105</P>


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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="width: 9%; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 10.</B></FONT></TD>
    <TD STYLE="width: 91%; padding: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Certification</B></FONT></TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="padding: 3pt; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By
    signing below the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were not
    acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities
    and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Dated: February&nbsp;11, 2022</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">SUSQUEHANNA INVESTMENT GROUP </TD><TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">SUSQUEHANNA SECURITIES, LLC</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; width: 7%">By:</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left; width: 42%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Brian Sopinsky</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; width: 7%">By:</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left; width: 42%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Brian Sopinsky</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Name:</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Brian Sopinsky</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Name:</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Brian Sopinsky</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Title:</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">General Counsel</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Title:</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Secretary</TD></TR>
  </TABLE>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
No</FONT>: 767292105</P>


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

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
<TD STYLE="width: 8%; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXHIBIT</B></FONT></TD>
<TD STYLE="width: 1%; text-align: center">&nbsp;</TD>
<TD STYLE="width: 91%; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>DESCRIPTION</B></FONT></TD></TR>
<TR>
<TD STYLE="text-align: center; vertical-align: top">&nbsp;</TD>
<TD STYLE="vertical-align: bottom">&nbsp;</TD>
<TD STYLE="vertical-align: top">&nbsp;</TD></TR>
<TR>
<TD STYLE="text-align: center; vertical-align: top">I</TD>
<TD STYLE="vertical-align: bottom">&nbsp;</TD>
<TD STYLE="vertical-align: top">&nbsp; Joint Filing Agreement &nbsp;</TD></TR>
</TABLE>

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

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT>CUSIP
No: 767292105</P>

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


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

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; background-color: white">This will confirm the
agreement by and among the undersigned that the Schedule 13G filed with the Securities and Exchange Commission on or about the date hereof
with respect to the beneficial ownership by the undersigned of the Common Stock of Riot Blockchain,&nbsp;Inc., no par value per share,
is being filed, and all amendments thereto will be filed, on behalf of each of the persons and entities named below in accordance with
Rule&nbsp;13d-1(k)&nbsp;under the Securities Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts,
each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Dated: February&nbsp;11, 2022</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">SUSQUEHANNA INVESTMENT GROUP </TD><TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">SUSQUEHANNA SECURITIES, LLC</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; width: 7%">By:</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left; width: 42%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Brian Sopinsky</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; width: 8%">By:</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left; width: 41%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Brian Sopinsky</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Name:</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Brian Sopinsky</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Name:</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Brian Sopinsky</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Title:</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">General Counsel</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Title:</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">Secretary</TD></TR>
  </TABLE>

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

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

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

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