<SEC-DOCUMENT>0001104659-20-021697-index.html : 20200214
<SEC-HEADER>0001104659-20-021697.hdr.sgml : 20200214
<ACCEPTANCE-DATETIME>20200214160619
ACCESSION NUMBER:		0001104659-20-021697
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20200214
DATE AS OF CHANGE:		20200214
GROUP MEMBERS:		CALC IV LP
GROUP MEMBERS:		CITADEL ADVISORS HOLDINGS LP
GROUP MEMBERS:		CITADEL ADVISORS LLC
GROUP MEMBERS:		CITADEL GP LLC
GROUP MEMBERS:		CITADEL SECURITIES LLC
GROUP MEMBERS:		KENNETH GRIFFIN

SUBJECT COMPANY:	

	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

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-79102
		FILM NUMBER:		20619495

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Citadel Securities GP LLC
		CENTRAL INDEX KEY:			0001721695
		IRS NUMBER:				822115505
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		131 S. DEARBORN ST.
		STREET 2:		32ND FLOOR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60603
		BUSINESS PHONE:		(312) 395-2100

	MAIL ADDRESS:	
		STREET 1:		131 S. DEARBORN ST.
		STREET 2:		32ND FLOOR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60603
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>tm206927d3_sc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: tm206927d3_sc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>