Abraxas Petroleum Corporation

Acasti Pharma, Inc.

Achieve Life Sciences, Inc.

Adamis Pharmaceuticals Corporation

Addus HomeCare Corporation

Aemetis, Inc

Aerpio Pharmaceuticals, Inc.

AGM Group Holdings Inc.

Aileron Therapeutics, Inc.

Allegro Merger Corp.

Alterity Therapeutics Limited

American Resources Corporation

Apex Global Brands Inc.

Aptevo Therapeutics Inc.

Aqua Metals, Inc.

Arcimoto, Inc.

ARYA Sciences Acquisition Corp.

Asia Pacific Wire & Cable Corporation Limited

Astrotech Corporation

Atlas Financial Holdings, Inc.

Avinger, Inc.

Big Rock Partners Acquisition Corp.

Biocept, Inc.

BIO-key International, Inc.

Biolase, Inc.

BioSpecifics Technologies Corp

Boxlight Corporation

Bruker Corporation

CBAK Energy Technology, Inc.

Chanticleer Holdings, Inc.

CHF Solutions, Inc.

China Ceramics Co., Ltd.

China HGS Real Estate, Inc.

China Internet Nationwide Financial Services Inc.

China Recycling Energy Corporation

China SXT Pharmaceuticals, Inc.

Cinedigm Corp

ClearSign Technologies Corporation

Cleveland BioLabs, Inc.

Conatus Pharmaceuticals Inc.

Correvio Pharma Corp.

CounterPath Corporation

Cyclacel Pharmaceuticals, Inc.

DASAN Zhone Solutions, Inc.

DelMar Pharmaceuticals, Inc.

Diffusion Pharmaceuticals Inc.

Digital Ally, Inc.

Dogness (International) Corporation

Dolphin Entertainment, Inc.

DropCar, Inc.

EdtechX Holdings Acquisition Corp.

Ekso Bionics Holdings, Inc.

Energy Focus, Inc.

Evolving Systems, Inc.

Exela Technologies, Inc.

Farmmi, INC.

Ferroglobe PLC

Frontier Communications Corporation

Fuel Tech, Inc.

Future FinTech Group Inc.

Genetic Technologies Ltd

Genius Brands International, Inc.

Global Eagle Entertainment Inc.

Globus Maritime Limited

Golden Bull Limited

Gordon Pointe Acquisition Corp.

Greenpro Capital Corp.

Guardion Health Sciences, Inc.

Hallmark Financial Services, Inc.

Hancock Jaffe Laboratories, Inc.

Heat Biologics, Inc.

Hexindai Inc.

HL Acquisitions Corp.

HTG Molecular Diagnostics, Inc.

Hudson Technologies, Inc.

Huitao Technology Co., Ltd.

Ideanomics, Inc.

iFresh Inc.

Innovate Biopharmaceuticals, Inc.

Inpixon

Insignia Systems, Inc.

Intec Pharma Ltd.

Invesco Exchange-Traded Self-Indexed Fund Trust

Iterum Therapeutics plc

IZEA Worldwide, Inc.

Jaguar Health, Inc.

JAKKS Pacific, Inc.

JMU Limited

KemPharm, Inc.

Kitov Pharma Ltd.

Kopin Corporation

Lianluo Smart Limited

Lipocine Inc.

Live Ventures Incorporated

LM Funding America, Inc.

Maiden Holdings, Ltd.

MER Telemanagement Solutions Ltd.

MicroVision, Inc.

Mid-Con Energy Partners, LP

Miragen Therapeutics, Inc.

Moleculin Biotech, Inc.

Moxian, Inc.

My Size, Inc.

MYOS RENS Technology Inc.

Naked Brand Group Limited

NanoVibronix, Inc.

Nebula Acquisition Corporation

Neovasc Inc.

Net Element, Inc.

Novan, Inc.

Novus Therapeutics, Inc.

NXT-ID Inc.

Ocean Power Technologies, Inc.

Ocugen, Inc.

Onconova Therapeutics, Inc.

One Stop Systems, Inc.

Opes Acquisition Corp.

Organovo Holdings, Inc.

Origin Agritech Limited

Pacific Ethanol, Inc.

Pareteum Corporation

Pensare Acquisition Corp.

Performance Shipping Inc.

Photronics, Inc.

Professional Diversity Network, Inc.

Reebonz Holding Limited

Remark Holdings, Inc.

ReTo Eco-Solutions, Inc.

Ritter Pharmaceuticals, Inc.

Rocket Pharmaceuticals, Inc.

RTI Surgical Holdings, Inc.

RumbleOn, Inc.

SAExploration Holdings, Inc.

Schultze Special Purpose Acquisition Corp.

Seanergy Maritime Holdings Corp

SemiLEDS Corporation

Senmiao Technology Limited

Sequential Brands Group, Inc.

Sesen Bio, Inc.

ShiftPixy, Inc.

Shineco, Inc.

Sigma Labs, Inc.

Sino-Global Shipping America, Ltd.

SPAR Group, Inc.

Sphere 3D Corp.

Staffing 360 Solutions, Inc.

Steel Connect, Inc.

Stein Mart, Inc.

Sterling Bancorp, Inc.

Summer Infant, Inc.

Summit Wireless Technologies, Inc.

Sunesis Pharmaceuticals, Inc.

Sunworks, Inc.

SuperCom, Ltd.

Superconductor Technologies Inc.

Synthesis Energy Systems, Inc.

Sypris Solutions, Inc.

Tandy Leather Factory, Inc.

Taoping Inc.

Tarena International, Inc.

Taronis Technologies, Inc.

Teligent, Inc.

The9 Limited

Therapix Biosciences Ltd.

Titan Medical Inc.

Titan Pharmaceuticals, Inc.

TOP Ships Inc.

Torchlight Energy Resources, Inc.

Tottenham Acquisition I Limited

ToughBuilt Industries, Inc.

Trevena, Inc.

U.S. Gold Corp.

Unum Therapeutics Inc.

Urban Tea, Inc.

VectoIQ Acquisition Corp.

Vermillion, Inc.

Verrica Pharmaceuticals Inc.

Vislink Technologies, Inc.

VistaGen Therapeutics, Inc.

Waitr Holdings Inc.

Wins Finance Holdings Inc.

XpresSpa Group, Inc.

Yunhong CTI Ltd.

Zion Oil