| MicroMed Cardiovascular, Inc. (MMCO) OTCBB - OTC (Over-The-Counter) Bulletin Board | |
| Mexco Energy Corporation (MXC) NYSEAMERICAN - NYSE American | |
| Maharaja International Ltd (MAHAINTL) NSE - National Stock Exchange of India | |
| Mahendra Suitings Ltd (MAHENDSUIT) NSE - National Stock Exchange of India | |
| Marnite Polycast Ltd (MARNITPOLY) NSE - National Stock Exchange of India | |
| Mstc Limited (MSTCLTD) NSE - National Stock Exchange of India | |
| Magenta Therapeutics, Inc. (MGTA) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| MainStreet Bancshares, Inc. (MNSB) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Majesco (MJCO) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Marin Software Incorporated (MRIN) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Marker Therapeutics, Inc. (MRKR) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| MDJM LTD (MDJH) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Medalist Diversified REIT, Inc. (MDRR) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Medallion Financial Corp. (MFINL) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Medigus Ltd. (MDGSW) NASDAQ - National Association of Securities Dealers Automated Quotations | |