<SEC-DOCUMENT>0001140361-18-012488.txt : 20180307
<SEC-HEADER>0001140361-18-012488.hdr.sgml : 20180307
<ACCEPTANCE-DATETIME>20180307171305
ACCESSION NUMBER:		0001140361-18-012488
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180227
FILED AS OF DATE:		20180307
DATE AS OF CHANGE:		20180307

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Chang Robby Sai Kit
		CENTRAL INDEX KEY:			0001732700

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33675
		FILM NUMBER:		18674127

	MAIL ADDRESS:	
		STREET 1:		1807-18 HARBOUR STREET
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 2Z6

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Riot Blockchain, Inc.
		CENTRAL INDEX KEY:			0001167419
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				841553387
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		202 6TH STREET, SUITE 401
		CITY:			CASTLE ROCK
		STATE:			CO
		ZIP:			80104
		BUSINESS PHONE:		303-794-2000

	MAIL ADDRESS:	
		STREET 1:		202 6TH STREET, SUITE 401
		CITY:			CASTLE ROCK
		STATE:			CO
		ZIP:			80104

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

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

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AspenBio Pharma, Inc.
		DATE OF NAME CHANGE:	20051110
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-02-27</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001167419</issuerCik>
        <issuerName>Riot Blockchain, Inc.</issuerName>
        <issuerTradingSymbol>RIOT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001732700</rptOwnerCik>
            <rptOwnerName>Chang Robby Sai Kit</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>202 6TH STREET, SUITE 401</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CASTLE ROCK</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80104</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>60000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">(1)	On February 27, 2018, Mr. Chang entered into an Employment Agreement with Riot Blockchain, Inc.'s (the &quot;Company&quot;) wholly-owned subsidiary Riot Blockchain Canada Inc. (the &quot;Employment Agreement&quot;). On February 27, 2018 the Company's Board of Directors appointed Mr. Chang to the position of Chief Financial Officer pursuant to the Employment Agreement. Pursuant to the Employment Agreement and in consideration for his services to the Company, Mr. Chang received an award of 60,000 restricted shares of the Company's common stock, which shall vest in 24 equal monthly installments over a two-year period, beginning on the one month anniversary of the date of issuance.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Robby Sai Kit Chang</signatureName>
        <signatureDate>2018-03-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
