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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>As filed with the U.S. Securities and Exchange Commission
on September 23, 2022.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: right"><B>Registration No. 333-____________</B></P>

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><I>THE SECURITIES ACT OF 1933</I></B></P>

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

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Nevada</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>84-1553387</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt">(State or other jurisdiction of incorporation)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt">(I.R.S. Employer Identification No.)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="2" STYLE="vertical-align: top; border-bottom: black 1pt solid; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>3855 Ambrosia Street, Suite 301,</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Castle Rock, CO </B></P></TD>
    <TD STYLE="vertical-align: top; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="vertical-align: bottom; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>80109</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt">(Address of principal executive offices)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt">(Zip Code)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended</B></FONT></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt">(Full title of the plan)</FONT></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center; text-indent: 0.05in"><B>William Jackman</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center; text-indent: 0.05in"><B>General Counsel</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>3855 Ambrosia Street, Suite 301,</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Castle Rock, CO 80109</B>&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt">(Name and address of agent for service)</FONT></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>(303) 794-2000</B></FONT></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 10pt">(Telephone number of agent for service)</FONT></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><I>With copies to:</I></B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><I>&nbsp;</I></B></P></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;<B>Scott Y. MacTaggart</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Lewis Roca Rothgerber Christie LLP</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>3993 Howard Hughes Parkway, Suite 600</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Las Vegas, NV 89169 </B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Phone: (702) 474-2610</B></P></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="6" STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-size: 10pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer&rdquo; and &ldquo;smaller reporting company&rdquo; in Rule 12b-2 of the Exchange Act.</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-left: 5.4pt; text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-size: 10pt">Large accelerated filer</FONT></TD>
    <TD STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: MS Gothic, Helvetica, Sans-Serif; font-size: 10pt">&#9746;</FONT></TD>
    <TD STYLE="padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-size: 10pt">Accelerated filer</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: MS Gothic, Helvetica, Sans-Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-size: 10pt">Non-accelerated filer</FONT></TD>
    <TD STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: MS Gothic, Helvetica, Sans-Serif; font-size: 10pt">&#9744;</FONT></TD>
    <TD STYLE="padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-size: 10pt">Smaller reporting company</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: MS Gothic, Helvetica, Sans-Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-size: 10pt">Emerging growth company</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: MS Gothic, Helvetica, Sans-Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="5" STYLE="vertical-align: top; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-size: 10pt">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-family: MS Gothic, Helvetica, Sans-Serif; font-size: 10pt">&#9744;</FONT></TD></TR>
  <TR>
    <TD STYLE="width: 29%">&nbsp;</TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 37%">&nbsp;</TD>
    <TD STYLE="width: 26%">&nbsp;</TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 4%">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify">&nbsp;</P>


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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center"><B>REGISTRATION OF ADDITIONAL SECURITIES PURSUANT
TO GENERAL INSTRUCTION E OF FORM S-8</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Riot Blockchain, Inc., a Nevada corporation (&ldquo;Riot,&rdquo;
the &ldquo;Registrant,&rdquo; the &ldquo;Company,&rdquo; &ldquo;we,&rdquo; &ldquo;us&rdquo; or &ldquo;our&rdquo;), is filing this Registration
Statement on Form S-8 (this &ldquo;Registration Statement&rdquo;) with the U.S. Securities and Exchange Commission (the &ldquo;Commission&rdquo;)
to register an additional 10,000,000 shares of its common stock, no par value per share (&ldquo;Common Stock&rdquo;) for issuance with
respect to equity awards made under the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended (the &ldquo;2019 Equity Plan&rdquo;).
These 10,000,000 additional shares of Common Stock have been reserved for issuance under the 2019 Equity Plan pursuant to the Third Amendment
to the 2019 Equity Plan, as approved by the Registrant&rsquo;s stockholders at the 2022 annual meeting of stockholders on July 27, 2022.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Registrant filed a Registration Statement on Form
S-8 (File No. 333-235355) with the Commission on December 5, 2019 (the &ldquo;2019 Registration Statement&rdquo;) to register 3,930,603
shares of Common Stock reserved for issuance with respect to equity awards made under the 2019 Equity Plan, including 3,600,000 shares
of Common Stock reserved for issuance pursuant to the 2019 Equity Plan and 330,603 shares of Common Stock originally reserved for issuance
under the Registrant&rsquo;s former employee equity incentive plan, which, by the terms of the 2019 Equity Plan, became available for
issuance under the 2019 Equity Plan upon its adoption. Thereafter, on November 15, 2021, the Registrant filed an additional Registration
Statement on Form S-8 (File No. 333-261086) with the Commission (the &ldquo;2021 Registration Statement&rdquo; and, together with the
2019 Registration Statement, the &ldquo;Prior Registration Statements&rdquo;) to register, pursuant to General Instruction E of Form S-8,
7,900,000 additional shares of Common Stock reserved for issuance with respect to equity awards made under the 2019 Equity Plan pursuant
to the first and second amendments to the 2019 Equity Plan, as approved by the Registrant&rsquo;s stockholders. The Prior Registration
Statements are currently effective. This Registration Statement relates to securities of the same class as those to which the Prior Registration
Statement relates and is submitted in accordance with General Instruction E of Form S-8 regarding the registration of additional securities
relating to an employee benefit plan. Accordingly, pursuant to General Instruction E of Form S-8, the Registrant hereby incorporates by
reference into and makes a part of this Registration Statement the contents of the Prior Registration Statements relating to the 2019
Equity Plan, including periodic reports that the Registrant filed after the Prior Registration Statements became effective to maintain
current information about the Registrant, except as amended by this Registration Statement and later periodic reports filed by the Registrant
after this Registration Statement becomes effective.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Information required by Part I of Form S-8 to be contained
in the Section 10(a) prospectus is omitted from this Registration Statement in pursuant to Rule 428 of the Securities Act. The documents
containing information specified in Part I will be sent or delivered to the participants in the 2019 Equity Plan as required by Rule 428(b)
of the Securities Act. Such documents are not being filed with the Commission as part of this Registration Statement or as prospectuses
or prospectus supplements pursuant to Rule 424 of the Securities Act.</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Commission permits us to &ldquo;incorporate by
reference&rdquo; the information contained in documents we file with the Commission, which means that we can disclose important information
to you by referring you to those documents rather than by including them in this Registration Statement. Information that is incorporated
by reference herein is considered to be part of this Registration Statement and you should read it with the same care that you read this
Registration Statement. Information that we file later with the Commission will automatically update and supersede the information that
is either contained, or incorporated by reference, in this Registration Statement, and will be considered to be a part of this Registration
Statement from the date those documents are filed. The Registrant hereby incorporates herein by reference the following documents filed
with the Commission:</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 48px"><FONT STYLE="font-size: 10pt">&bull;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Our Annual Report on <A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322000280/riot10k1221.htm" STYLE="-sec-extract: exhibit">Form 10-K for the fiscal year ended December 31, 2021</A>, as filed with the Commission on March 16, 2022,&nbsp;<A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322000531/riot_10ka-123121.htm" STYLE="-sec-extract: exhibit">as amended by a filing made with the Commission on May 2, 2022</A>;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 48px"><FONT STYLE="font-size: 10pt">&bull;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Our Quarterly Reports on Form 10-Q for the quarterly periods ended&nbsp;<A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322000557/riot_10q-033122.htm" STYLE="-sec-extract: exhibit">March 31, 2022</A>, and <A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000155335022000687/riot-20220630.htm" STYLE="-sec-extract: exhibit">June 30, 2022</A>, filed with the Commission on May 10, 2022, and August 15, 2022, respectively;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 48px"><FONT STYLE="font-size: 10pt">&bull;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Our Current Reports on Form 8-K (excluding any reports or portions
thereof that are deemed to be furnished and not filed, as provided therein) filed with the Commission on:&nbsp;<A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322000003/riot_8k.htm" STYLE="-sec-extract: exhibit">January
3, 2022</A>;&nbsp;<A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322000135/riot_8k.htm" STYLE="-sec-extract: exhibit">February
8, 2022</A>;<A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322000332/riot_8k.htm" STYLE="-sec-extract: exhibit">&nbsp;March
23, 2022</A>;&nbsp;<A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322000385/riot_8k.htm" STYLE="-sec-extract: exhibit">March
31, 2022</A>; <A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322000747/riot_8k.htm" STYLE="-sec-extract: exhibit">June
6, 2022</A>; <A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322000922/riot_8k.htm" STYLE="-sec-extract: exhibit">August
2, 2022</A> (excluding Item 5.05) and <A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997322001147/riot_8k.htm" STYLE="-sec-extract: exhibit">September 23, 2022</A>;&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 48px"><FONT STYLE="font-size: 10pt">&bull;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">All other reports filed pursuant to Section&nbsp;13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, (the &ldquo;Exchange Act&rdquo;) since July&nbsp;2, 2021 (other than information deemed to have been &ldquo;furnished&rdquo; rather than &ldquo;filed&rdquo; in accordance with the SEC&rsquo;s rules); and</font></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in">&nbsp;</P>



<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 48px"><FONT STYLE="font-size: 10pt">&bull;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">The description of our common stock contained in our registration statement on&nbsp;<A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997307000759/apnb_form8a-082207.htm" STYLE="-sec-extract: exhibit">Form 8-A</A>, filed with the Commission pursuant to Section 12(b) of the Exchange Act on August 27, 2007, including any amendment or report filed for the purpose of updating that description.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">All reports subsequently filed by the Registrant pursuant
to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act after the filing of this Registration Statement and prior to the filing of a
post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining
unsold, shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date of filing
such documents, except as to specific sections of such documents as set forth therein. Unless expressly incorporated into this Registration
Statement, a report furnished on Form 8-K prior or subsequent to the filing of this Registration Statement shall not be deemed incorporated
by reference into this Registration Statement. Any statement contained in a document incorporated or deemed to be incorporated by reference
herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained
in any subsequently filed document that also is deemed to be incorporated by reference herein modifies or supersedes such statement.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>ITEM 4. DESCRIPTION OF SECURITIES. </B></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>ITEM 5. INTERESTS OF NAMED EXPERTS AND COUNSEL</B></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Nevada Revised Statutes Sections 78.7502 and 78.751
provide us with the power to indemnify any of our directors and officers. The director or officer must have conducted themselves in good
faith and reasonably believe that their conduct was in, or not opposed to, our best interests. In a criminal action, the director, officer,
employee or agent must not have had reasonable cause to believe his/her conduct was unlawful. Under Nevada Revised Statutes Section 78.751,
advances for expenses may be made by agreement if the director or officer affirms in writing that they believe they have met the standards
and will personally repay the expenses if it is determined such officer or director did not meet the standards.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Our Articles of Incorporation provide that our officers
and directors shall be indemnified and held harmless to the fullest extent legally permissible under the laws of the State of Nevada against
all expenses, liability and loss (including attorneys&rsquo; fees, judgments, fines and amounts paid or to be paid in settlement) reasonably
incurred or suffered by them in connection with any civil, criminal, administrative or investigative action, suit or proceeding related
to their service as an officer or director. Such right of indemnification shall be a contractual right which may be enforced in any manner
desired by such person. Registrant shall pay the expenses of officers and directors incurred in defending a civil or criminal action,
suit or proceeding as they are incurred and in advance of the final disposition of the action, suit or proceeding, upon receipt of an
undertaking by or on behalf of the director or officer to repay the amount if it is ultimately determined by a court of competent jurisdiction
that he/she is not entitled to be indemnified by us. Such right of indemnification shall not be exclusive of any other right which such
directors or officers may have or hereafter acquire. The indemnification provided in our Articles of Incorporation shall continue as to
a person who has ceased to be a director, officer, employee or agent, and shall inure to the benefit of the heirs, executors and administrators
of such person.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Our Articles of Incorporation also provide that we
may adopt bylaws to provide at all times the fullest indemnification permitted by the laws of the State of Nevada, and that we may purchase
and maintain insurance on behalf of any of our officers and directors. Our Bylaws provide that a director or officer shall have no personal
liability to us or our stockholders for damages for breach of fiduciary duty as a director or officer, except for damages for breach of
fiduciary duty resulting from (a) acts or omissions which involve intentional misconduct, fraud, or a knowing violation of law, or (b)
the payment of dividends in violation of Nevada Revised Statutes Section 78.300. We also maintain general liability and directors&rsquo;
and officers&rsquo; insurance policies that cover certain liabilities of our directors and officers arising out of claims based on acts
or omissions in their capacities as directors or officers, including liabilities under the Securities Act.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Further, we have entered into employment agreements
with our executives which contain provisions requiring us to indemnify our executives from certain liabilities arising in the course of
their employment with us, and we may enter into similar indemnification agreements with each of our directors, executive officers, and
certain of our other employees in the future. Subject to limitations established under applicable Nevada law, federal securities laws,
our Articles of incorporation, and our Bylaws, these indemnification agreements may require us, among other things, to indemnify our directors
and executive officers for certain expenses and against certain liabilities including, among other things, attorneys&rsquo; fees, judgments,
fines, and settlement amounts actually and reasonably paid or incurred by such director or officer in any action, suit, or proceeding
arising out of their services as a director or officer or any other company or enterprise to which the person provides services at our
request. Subject to certain exceptions for breaches of fiduciary duty by such persons as described in the foregoing, these indemnification
agreements will also require us to advance certain expenses (including attorneys&rsquo; fees and disbursements) actually and reasonably
paid or incurred by these persons in advance of the final disposition of the action, suit, or proceeding. We believe these indemnification
agreements are necessary to attract and retain qualified individuals to serve as directors and executive officers.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">These limitations of liability do not alter director
or officer liability under the federal securities laws and do not affect the availability of equitable remedies such as an injunction
or rescission.</P>

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


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Insofar as indemnification for liabilities arising
under the Securities Act may be permitted to directors, officers or persons controlling the Registrant pursuant to the foregoing provisions,
the Registrant has been informed that, in the opinion of the Commission, such indemnification is against public policy as expressed in
the Act and is, therefore, unenforceable.</P>

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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>ITEM 7. EXEMPTION FROM REGISTRATION CLAIMED</B></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>ITEM 8. EXHIBITS</B></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="padding-bottom: 1pt; vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD STYLE="padding-bottom: 1pt; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD STYLE="padding-bottom: 1pt; vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD STYLE="padding-bottom: 1pt; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD COLSPAN="7" STYLE="border-bottom: Black 1pt solid; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>Incorporated
    by Reference from:</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>Exhibit
    No.</B></FONT></TD>
    <TD STYLE="padding-bottom: 1pt; text-align: center; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>Exhibit
    Description</B></FONT></TD>
    <TD STYLE="padding-bottom: 1pt; text-align: center; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>Form</B></FONT></TD>
    <TD STYLE="padding-bottom: 1pt; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>File
    No.</B></FONT></TD>
    <TD STYLE="padding-bottom: 1pt; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>Exhibit
    No.</B></FONT></TD>
    <TD STYLE="padding-bottom: 1pt; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 9pt"><B>Filing
    Date</B></FONT></TD></TR>
  <TR STYLE="background-color: #CCECFF">
    <TD STYLE="vertical-align: top; width: 5%; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">4.1</FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 1%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 52%; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997317000554/ex3x1.htm" STYLE="-sec-extract: exhibit">Articles of Incorporation</A></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 1%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 5%; text-align: center"><FONT STYLE="font-size: 10pt">8-K</FONT></TD>
    <TD STYLE="vertical-align: top; width: 1%; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 9%; text-align: center"><FONT STYLE="font-size: 10pt">001-33675</FONT></TD>
    <TD STYLE="vertical-align: top; width: 1%; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 9%; text-align: center"><FONT STYLE="font-size: 10pt">3.1</FONT></TD>
    <TD STYLE="vertical-align: top; width: 1%; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 15%; text-align: center"><FONT STYLE="font-size: 10pt">September 25, 2017</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">4.2</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997317000554/ex3x2.htm" STYLE="-sec-extract: exhibit">Bylaws</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">8-K</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">001-33675</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">3.2</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">September 25, 2017</FONT></TD></TR>
  <TR STYLE="background-color: #CCECFF">
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">4.3</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997318000146/ex3x1.htm" STYLE="-sec-extract: exhibit">Amendment to Bylaws</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">8-K</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">001-33675</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">3.1</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">March 12, 2018</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">4.4</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997319000627/ex4x5.htm" STYLE="-sec-extract: exhibit">Riot Blockchain, Inc. 2019 Equity Incentive Plan</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">S-8</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">333-235355</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">4.5</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">December 5, 2019</FONT></TD></TR>
  <TR STYLE="background-color: #CCECFF">
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">4.5</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997321001159/ex4x5.htm" STYLE="-sec-extract: exhibit">First Amendment to the Riot Blockchain, Inc. 2019 Equity Incentive Plan</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">S-8</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">333-261086</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">4.5</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">November 15, 2021</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">4.6</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997321001159/ex4x6.htm" STYLE="-sec-extract: exhibit">Second Amendment to the Riot Blockchain, Inc. 2019 Equity Incentive Plan</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">S-8</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">333-261086</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">4.6</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">November 15, 2021</FONT></TD></TR>
  <TR STYLE="background-color: #CCECFF">
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">4.7</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="ex4x7.htm">Third Amendment to the Riot Blockchain, Inc. 2019 Equity Incentive Plan</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">4.8</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997321001159/ex4x7.htm" STYLE="-sec-extract: exhibit">Form of Service-Based Restricted Stock Unit Award Agreement</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">S-8</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">333-261086</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">4.7</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">November 15, 2021</FONT></TD></TR>
  <TR STYLE="background-color: #CCECFF">
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">4.9</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1167419/000107997321000790/ex10x1.htm" STYLE="-sec-extract: exhibit">Form of Performance-Based Restricted Stock Unit Award Agreement</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">8-K</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">001-33675</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">10.1</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">August 16, 2021</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">5.1</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="ex5x1.htm">Opinion of Lewis Rocca Rothgerber Christie LLP</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD></TR>
  <TR STYLE="background-color: #CCECFF">
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">23.1</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="ex23x1.htm">Consent of Marcum LLP</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">23.2</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="ex5x1.htm">Consent of Lewis Rocca Rothgerber Christie LLP (contained in Exhibit 5.1)</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD></TR>
  <TR STYLE="background-color: rgb(204,238,255)">
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-size: 10pt">23.3</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-size: 10pt"><A HREF="#a_001">Power of Attorney (included on the signature page of this Registration Statement)</A></FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">*</FONT></TD></TR>
  <TR STYLE="background-color: White">
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">107</FONT></TD>
    <TD STYLE="vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="ex107.htm">Calculation of Filing Fee Table</A></FONT></TD>
    <TD STYLE="vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;*</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;*</FONT></TD></TR>
  <TR STYLE="background-color: White">
    <TD STYLE="vertical-align: top; padding-right: -4.2pt; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 1.05pt; text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">*filed herewith.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>ITEM 9. UNDERTAKINGS</B></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
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    <TD STYLE="width: 0px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(a)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">The undersigned Registrant hereby undertakes:</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 24px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(1)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(i)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">To include any prospectus required by section 10(a)(3) of the Securities Act;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(ii)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set forth in the &ldquo;Calculation of Registration Fee&rdquo; table in the effective registration statement; and</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(iii)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt 0.25in; text-align: justify">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt 0.25in; text-align: justify">&nbsp;Provided, however, that: paragraphs
(a)(1)(i), (a)(1)(ii) and (a)(1)(iii) of this section do not apply if the registration statement is on Form S-3 and the information required
to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by
the Registrant pursuant to section 13 or section 15(d) of the Exchange Act that are incorporated by reference in the registration statement,
or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 24px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(2)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial <I>bona fide</I> offering thereof.&#9; </FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(3)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 24px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(4)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">That, for the purpose of determining liability under the Securities Act to any purchaser:&#9; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(i)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">Each prospectus filed by the Registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and&#9; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(ii)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by section 10(a) of the Securities Act shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date; or&#9; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 24px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(5)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">That, for the purpose of determining liability of the Registrant under the Securities Act to any purchaser in the initial distribution of the securities, the undersigned Registrant undertakes that in a primary offering of securities of the undersigned Registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned Registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(i)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">Any preliminary prospectus or prospectus of the undersigned Registrant relating to the offering required to be filed pursuant to Rule 424;&#9; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(ii)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned Registrant or used or referred to by the undersigned Registrant;&#9; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(iii)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">The portion of any other free writing prospectus relating to the offering containing material information about the undersigned Registrant or its securities provided by or on behalf of the undersigned Registrant; and&#9; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(iv)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">Any other communication that is an offer in the offering made by the undersigned Registrant to the purchaser.&#9; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

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    <TD STYLE="width: 0px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(b)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">The Registrant hereby undertakes that for purposes of determining any liability under the Securities Act, each filing of the Registrant&rsquo;s annual report pursuant to section 13(a) or section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan&rsquo;s annual report pursuant to section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.&#9; </FONT></TD></TR>
  </TABLE>
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    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(c)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.&#9; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 0px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(d)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">The Registrant hereby undertakes that:&#9; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 24px">&nbsp;</TD>
    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(1)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">For purposes of determining any liability under the Securities Act, the information omitted from the form of prospectus filed as part of this registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be part of this registration statement as of the time it was declared effective; and</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"></P>

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    <TD STYLE="width: 24px; padding-bottom: 12pt"><FONT STYLE="font-size: 10pt">(2)</FONT></TD>
    <TD STYLE="padding-bottom: 12pt; text-align: justify"><FONT STYLE="font-size: 10pt">For the purpose of determining any liability under the Securities Act, each post-effective amendment that contains a form of prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Pursuant to the requirements of the Securities Act,
as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form
S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, on September
23, 2022.</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%">
  <TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">Dated: September 23, 2022</FONT></TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt"><B>Riot Blockchain, Inc.</B></FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; width: 51%">&nbsp;</TD>
    <TD STYLE="width: 3%"><FONT STYLE="font-size: 10pt">By:&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; width: 46%"><FONT STYLE="font-size: 10pt">/s/ Jeffrey G. McGonegal</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; border-top: black 1pt solid"><FONT STYLE="font-size: 10pt">Jeffrey G. McGonegal<BR>
Chief Financial Officer <BR>
(Principal Financial Officer)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><A NAME="a_001"></A>POWER OF ATTORNEY</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>KNOW ALL PERSONS BY THESE PRESENTS</B>, that the
registrant and each person whose signature appears below constitutes and appoints Jason Les, Jeffrey G. McGonegal, and William R. Jackman,
and each of them, their true and lawful attorney-in-fact and agents, with full power to act with or without the others and with full power
of substitution and re-substitution, in any and all capacities, to execute on behalf of the undersigned and file any and all amendments
(including post-effective amendments) to this registration statement on Form S-8, with all exhibits thereto, and other documents in connection
therewith, with the Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and
perform each and every act and thing requisite or necessary to be done in and about the premises, as fully to all intents and purposes
as he, she, or it might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them,
or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Pursuant to the requirements of the Securities Act,
as amended, this registration statement has been signed below by the following persons in the capacities and on the date indicated.</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="vertical-align: bottom; width: 22%; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: left"><FONT STYLE="font-size: 10pt"><B>Name</B></FONT></TD>
    <TD STYLE="width: 1%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="width: 58%; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-size: 10pt"><B>Title</B></FONT></TD>
    <TD STYLE="width: 1%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="width: 18%; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><FONT STYLE="font-size: 10pt"><B>Date</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt; text-align: left">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">/s/ Jason Les</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">Chief Executive Officer (Principal Executive Officer) and Director</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">September 23, 2022</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: top"><FONT STYLE="font-size: 10pt">Jason Les</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">/s/ Jeffrey G. McGonegal</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">Chief Financial Officer (Principal Financial Officer)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">September 23, 2022</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: top"><FONT STYLE="font-size: 10pt">Jeffrey G. McGonegal</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">/s/ Benjamin Yi</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">Executive Chairman (Director)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-bottom: 1pt; padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">September 23, 2022</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: top"><FONT STYLE="font-size: 10pt">Benjamin Yi</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">/s/ Hubert Marleau</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">Director </FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">September 23, 2022</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: top"><FONT STYLE="font-size: 10pt">Hubert Marleau</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">/s/ Hannah Cho</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">Director</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">September 23, 2022</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: top"><FONT STYLE="font-size: 10pt">Hannah Cho</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">/s/ Lance D&rsquo;Ambrosio</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">Director</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-left: 5.4pt"><FONT STYLE="font-size: 10pt">September 23, 2022</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: top"><FONT STYLE="font-size: 10pt">Lance D&rsquo;Ambrosio</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding-right: 5.4pt; padding-left: 5.4pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
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{"company-data": {"conformed-name": "Riot Blockchain, Inc.", "cik": "0001167419", "assigned-sic": "7374", "irs-number": "841553387", "state-of-incorporation": "NV", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-267567", "film-number": "221260600"}, "business-address": {"street1": "3855 AMBROSIA STREET, SUITE 301", "city": "CASTLE ROCK", "state": "CO", "zip": "80109", "phone": "303-794-2000"}, "mail-address": {"street1": "3855 AMBROSIA STREET, SUITE 301", "city": "CASTLE ROCK", "state": "CO", "zip": "80109"}, "former-company": [{"former-conformed-name": "Bioptix, Inc.", "date-changed": "20161201"}, {"former-conformed-name": "Venaxis, Inc.", "date-changed": "20121218"}, {"former-conformed-name": "AspenBio Pharma, Inc.", "date-changed": "20051110"}]}
As filed with the U.S. Securities and Exchange Commission
on September 23, 2022.
Registration No. 333-____________
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
RIOT BLOCKCHAIN, INC.
(Exact name of registrant, as specified in its charter)
Nevada
84-1553387
(State or other jurisdiction of incorporation)
(I.R.S. Employer Identification No.)
3855 Ambrosia Street, Suite 301,
Castle Rock, CO
80109
(Address of principal executive offices)
(Zip Code)
Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended
(Full title of the plan)
William Jackman
General Counsel
3855 Ambrosia Street, Suite 301,
Castle Rock, CO 80109
(Name and address of agent for service)
(303) 794-2000
(Telephone number of agent for service)
With copies to:
Scott Y. MacTaggart
Lewis Roca Rothgerber Christie LLP
3993 Howard Hughes Parkway, Suite 600
Las Vegas, NV 89169
Phone: (702) 474-2610
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer
☒
Accelerated filer
☐
Non-accelerated filer
☐
Smaller reporting company
☐
Emerging growth company
☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.
☐
EXPLANATORY NOTE
REGISTRATION OF ADDITIONAL SECURITIES PURSUANT
TO GENERAL INSTRUCTION E OF FORM S-8
Riot Blockchain, Inc., a Nevada corporation ("Riot,"
the "Registrant," the "Company," "we," "us" or "our"), is filing this Registration
Statement on Form S-8 (this "Registration Statement") with the U.S. Securities and Exchange Commission (the "Commission")
to register an additional 10,000,000 shares of its common stock, no par value per share ("Common Stock") for issuance with
respect to equity awards made under the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended (the "2019 Equity Plan").
These 10,000,000 additional shares of Common Stock have been reserved for issuance under the 2019 Equity Plan pursuant to the Third Amendment
to the 2019 Equity Plan, as approved by the Registrant's stockholders at the 2022 annual meeting of stockholders on July 27, 2022.
The Registrant filed a Registration Statement on Form
S-8 (File No. 333-235355) with the Commission on December 5, 2019 (the "2019 Registration Statement") to register 3,930,603
shares of Common Stock reserved for issuance with respect to equity awards made under the 2019 Equity Plan, including 3,600,000 shares
of Common Stock reserved for issuance pursuant to the 2019 Equity Plan and 330,603 shares of Common Stock originally reserved for issuance
under the Registrant's former employee equity incentive plan, which, by the terms of the 2019 Equity Plan, became available for
issuance under the 2019 Equity Plan upon its adoption. Thereafter, on November 15, 2021, the Registrant filed an additional Registration
Statement on Form S-8 (File No. 333-261086) with the Commission (the "2021 Registration Statement" and, together with the
2019 Registration Statement, the "Prior Registration Statements") to register, pursuant to General Instruction E of Form S-8,
7,900,000 additional shares of Common Stock reserved for issuance with respect to equity awards made under the 2019 Equity Plan pursuant
to the first and second amendments to the 2019 Equity Plan, as approved by the Registrant's stockholders. The Prior Registration
Statements are currently effective. This Registration Statement relates to securities of the same class as those to which the Prior Registration
Statement relates and is submitted in accordance with General Instruction E of Form S-8 regarding the registration of additional securities
relating to an employee benefit plan. Accordingly, pursuant to General Instruction E of Form S-8, the Registrant hereby incorporates by
reference into and makes a part of this Registration Statement the contents of the Prior Registration Statements relating to the 2019
Equity Plan, including periodic reports that the Registrant filed after the Prior Registration Statements became effective to maintain
current information about the Registrant, except as amended by this Registration Statement and later periodic reports filed by the Registrant
after this Registration Statement becomes effective.
PART I
INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS
Information required by Part I of Form S-8 to be contained
in the Section 10(a) prospectus is omitted from this Registration Statement in pursuant to Rule 428 of the Securities Act. The documents
containing information specified in Part I will be sent or delivered to the participants in the 2019 Equity Plan as required by Rule 428(b)
of the Securities Act. Such documents are not being filed with the Commission as part of this Registration Statement or as prospectuses
or prospectus supplements pursuant to Rule 424 of the Securities Act.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE
The Commission permits us to "incorporate by
reference" the information contained in documents we file with the Commission, which means that we can disclose important information
to you by referring you to those documents rather than by including them in this Registration Statement. Information that is incorporated
by reference herein is considered to be part of this Registration Statement and you should read it with the same care that you read this
Registration Statement. Information that we file later with the Commission will automatically update and supersede the information that
is either contained, or incorporated by reference, in this Registration Statement, and will be considered to be a part of this Registration
Statement from the date those documents are filed. The Registrant hereby incorporates herein by reference the following documents filed
with the Commission:
•
Our Annual Report on
Form 10-K for the fiscal year ended December 31, 2021
, as filed with the Commission on March 16, 2022,
as amended by a filing made with the Commission on May 2, 2022
;
•
Our Quarterly Reports on Form 10-Q for the quarterly periods ended
March 31, 2022
, and
June 30, 2022
, filed with the Commission on May 10, 2022, and August 15, 2022, respectively;
•
Our Current Reports on Form 8-K (excluding any reports or portions
thereof that are deemed to be furnished and not filed, as provided therein) filed with the Commission on:
January
3, 2022
;
February
8, 2022
;
March
23, 2022
;
March
31, 2022
;
June
6, 2022
;
August
2, 2022
(excluding Item 5.05) and
September 23, 2022
;
•
All other reports filed pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, (the "Exchange Act") since July 2, 2021 (other than information deemed to have been "furnished" rather than "filed" in accordance with the SEC's rules); and
•
The description of our common stock contained in our registration statement on
Form 8-A
, filed with the Commission pursuant to Section 12(b) of the Exchange Act on August 27, 2007, including any amendment or report filed for the purpose of updating that description.
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All reports subsequently filed by the Registrant pursuant
to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act after the filing of this Registration Statement and prior to the filing of a
post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining
unsold, shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date of filing
such documents, except as to specific sections of such documents as set forth therein. Unless expressly incorporated into this Registration
Statement, a report furnished on Form 8-K prior or subsequent to the filing of this Registration Statement shall not be deemed incorporated
by reference into this Registration Statement. Any statement contained in a document incorporated or deemed to be incorporated by reference
herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained
in any subsequently filed document that also is deemed to be incorporated by reference herein modifies or supersedes such statement.
ITEM 4. DESCRIPTION OF SECURITIES.
Not applicable.
ITEM 5. INTERESTS OF NAMED EXPERTS AND COUNSEL
Not applicable.
ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS
Nevada Revised Statutes Sections 78.7502 and 78.751
provide us with the power to indemnify any of our directors and officers. The director or officer must have conducted themselves in good
faith and reasonably believe that their conduct was in, or not opposed to, our best interests. In a criminal action, the director, officer,
employee or agent must not have had reasonable cause to believe his/her conduct was unlawful. Under Nevada Revised Statutes Section 78.751,
advances for expenses may be made by agreement if the director or officer affirms in writing that they believe they have met the standards
and will personally repay the expenses if it is determined such officer or director did not meet the standards.
Our Articles of Incorporation provide that our officers
and directors shall be indemnified and held harmless to the fullest extent legally permissible under the laws of the State of Nevada against
all expenses, liability and loss (including attorneys' fees, judgments, fines and amounts paid or to be paid in settlement) reasonably
incurred or suffered by them in connection with any civil, criminal, administrative or investigative action, suit or proceeding related
to their service as an officer or director. Such right of indemnification shall be a contractual right which may be enforced in any manner
desired by such person. Registrant shall pay the expenses of officers and directors incurred in defending a civil or criminal action,
suit or proceeding as they are incurred and in advance of the final disposition of the action, suit or proceeding, upon receipt of an
undertaking by or on behalf of the director or officer to repay the amount if it is ultimately determined by a court of competent jurisdiction
that he/she is not entitled to be indemnified by us. Such right of indemnification shall not be exclusive of any other right which such
directors or officers may have or hereafter acquire. The indemnification provided in our Articles of Incorporation shall continue as to
a person who has ceased to be a director, officer, employee or agent, and shall inure to the benefit of the heirs, executors and administrators
of such person.
Our Articles of Incorporation also provide that we
may adopt bylaws to provide at all times the fullest indemnification permitted by the laws of the State of Nevada, and that we may purchase
and maintain insurance on behalf of any of our officers and directors. Our Bylaws provide that a director or officer shall have no personal
liability to us or our stockholders for damages for breach of fiduciary duty as a director or officer, except for damages for breach of
fiduciary duty resulting from (a) acts or omissions which involve intentional misconduct, fraud, or a knowing violation of law, or (b)
the payment of dividends in violation of Nevada Revised Statutes Section 78.300. We also maintain general liability and directors'
and officers' insurance policies that cover certain liabilities of our directors and officers arising out of claims based on acts
or omissions in their capacities as directors or officers, including liabilities under the Securities Act.
Further, we have entered into employment agreements
with our executives which contain provisions requiring us to indemnify our executives from certain liabilities arising in the course of
their employment with us, and we may enter into similar indemnification agreements with each of our directors, executive officers, and
certain of our other employees in the future. Subject to limitations established under applicable Nevada law, federal securities laws,
our Articles of incorporation, and our Bylaws, these indemnification agreements may require us, among other things, to indemnify our directors
and executive officers for certain expenses and against certain liabilities including, among other things, attorneys' fees, judgments,
fines, and settlement amounts actually and reasonably paid or incurred by such director or officer in any action, suit, or proceeding
arising out of their services as a director or officer or any other company or enterprise to which the person provides services at our
request. Subject to certain exceptions for breaches of fiduciary duty by such persons as described in the foregoing, these indemnification
agreements will also require us to advance certain expenses (including attorneys' fees and disbursements) actually and reasonably
paid or incurred by these persons in advance of the final disposition of the action, suit, or proceeding. We believe these indemnification
agreements are necessary to attract and retain qualified individuals to serve as directors and executive officers.
These limitations of liability do not alter director
or officer liability under the federal securities laws and do not affect the availability of equitable remedies such as an injunction
or rescission.
Insofar as indemnification for liabilities arising
under the Securities Act may be permitted to directors, officers or persons controlling the Registrant pursuant to the foregoing provisions,
the Registrant has been informed that, in the opinion of the Commission, such indemnification is against public policy as expressed in
the Act and is, therefore, unenforceable.
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ITEM 7. EXEMPTION FROM REGISTRATION CLAIMED
Not applicable.
ITEM 8. EXHIBITS
Incorporated
    by Reference from:
Exhibit
    No.
Exhibit
    Description
Form
File
    No.
Exhibit
    No.
Filing
    Date
4.1
Articles of Incorporation
8-K
001-33675
3.1
September 25, 2017
4.2
Bylaws
8-K
001-33675
3.2
September 25, 2017
4.3
Amendment to Bylaws
8-K
001-33675
3.1
March 12, 2018
4.4
Riot Blockchain, Inc. 2019 Equity Incentive Plan
S-8
333-235355
4.5
December 5, 2019
4.5
First Amendment to the Riot Blockchain, Inc. 2019 Equity Incentive Plan
S-8
333-261086
4.5
November 15, 2021
4.6
Second Amendment to the Riot Blockchain, Inc. 2019 Equity Incentive Plan
S-8
333-261086
4.6
November 15, 2021
4.7
Third Amendment to the Riot Blockchain, Inc. 2019 Equity Incentive Plan
*
*
*
*
4.8
Form of Service-Based Restricted Stock Unit Award Agreement
S-8
333-261086
4.7
November 15, 2021
4.9
Form of Performance-Based Restricted Stock Unit Award Agreement
8-K
001-33675
10.1
August 16, 2021
5.1
Opinion of Lewis Rocca Rothgerber Christie LLP
*
*
*
*
23.1
Consent of Marcum LLP
*
*
*
*
23.2
Consent of Lewis Rocca Rothgerber Christie LLP (contained in Exhibit 5.1)
*
*
*
*
23.3
Power of Attorney (included on the signature page of this Registration Statement)
*
*
*
*
107
Calculation of Filing Fee Table
*
*
*
*
*filed herewith.
ITEM 9. UNDERTAKINGS
(a)
The undersigned Registrant hereby undertakes:
(1)
To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:
(i)
To include any prospectus required by section 10(a)(3) of the Securities Act;
(ii)
To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement; and
(iii)
To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement.
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Provided, however, that: paragraphs
(a)(1)(i), (a)(1)(ii) and (a)(1)(iii) of this section do not apply if the registration statement is on Form S-3 and the information required
to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by
the Registrant pursuant to section 13 or section 15(d) of the Exchange Act that are incorporated by reference in the registration statement,
or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.
(2)
That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
(3)
To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
(4)
That, for the purpose of determining liability under the Securities Act to any purchaser:
(i)
Each prospectus filed by the Registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and
(ii)
Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by section 10(a) of the Securities Act shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date; or
(5)
That, for the purpose of determining liability of the Registrant under the Securities Act to any purchaser in the initial distribution of the securities, the undersigned Registrant undertakes that in a primary offering of securities of the undersigned Registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned Registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:
(i)
Any preliminary prospectus or prospectus of the undersigned Registrant relating to the offering required to be filed pursuant to Rule 424;
(ii)
Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned Registrant or used or referred to by the undersigned Registrant;
(iii)
The portion of any other free writing prospectus relating to the offering containing material information about the undersigned Registrant or its securities provided by or on behalf of the undersigned Registrant; and
(iv)
Any other communication that is an offer in the offering made by the undersigned Registrant to the purchaser.
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(b)
The Registrant hereby undertakes that for purposes of determining any liability under the Securities Act, each filing of the Registrant's annual report pursuant to section 13(a) or section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(c)
Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.
(d)
The Registrant hereby undertakes that:
(1)
For purposes of determining any liability under the Securities Act, the information omitted from the form of prospectus filed as part of this registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be part of this registration statement as of the time it was declared effective; and
(2)
For the purpose of determining any liability under the Securities Act, each post-effective amendment that contains a form of prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
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SIGNATURES
Pursuant to the requirements of the Securities Act,
as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form
S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, on September
23, 2022.
Dated: September 23, 2022
Riot Blockchain, Inc.
By:
/s/ Jeffrey G. McGonegal
Jeffrey G. McGonegal
Chief Financial Officer
(Principal Financial Officer)
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS
, that the
registrant and each person whose signature appears below constitutes and appoints Jason Les, Jeffrey G. McGonegal, and William R. Jackman,
and each of them, their true and lawful attorney-in-fact and agents, with full power to act with or without the others and with full power
of substitution and re-substitution, in any and all capacities, to execute on behalf of the undersigned and file any and all amendments
(including post-effective amendments) to this registration statement on Form S-8, with all exhibits thereto, and other documents in connection
therewith, with the Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and
perform each and every act and thing requisite or necessary to be done in and about the premises, as fully to all intents and purposes
as he, she, or it might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them,
or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Act,
as amended, this registration statement has been signed below by the following persons in the capacities and on the date indicated.
Name
Title
Date
/s/ Jason Les
Chief Executive Officer (Principal Executive Officer) and Director
September 23, 2022
Jason Les
/s/ Jeffrey G. McGonegal
Chief Financial Officer (Principal Financial Officer)
September 23, 2022
Jeffrey G. McGonegal
/s/ Benjamin Yi
Executive Chairman (Director)
September 23, 2022
Benjamin Yi
/s/ Hubert Marleau
Director
September 23, 2022
Hubert Marleau
/s/ Hannah Cho
Director
September 23, 2022
Hannah Cho
/s/ Lance D'Ambrosio
Director
September 23, 2022
Lance D'Ambrosio
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