| MWG | Multi Ways Holdings Limited | Industrials | $5.4M | — | 0 |
| MSAIW | MultiSensor AI Holdings, Inc. | Technology | $0.9M | — | 0 |
| CCFN | Muncy Columbia Financial Corporation | Financial Services | $324M | — | 0 |
| MRNOW | Murano Global Investments PLC Warrants | Real Estate | $13.0M | — | 0 |
| MRAAF | Murata Manufacturing Co., Ltd. | Technology | $87.3B | — | 0 |
| MUR | Murphy Oil Corporation | Energy | $5.4B | — | 0 |
| MUSA | Murphy USA Inc. | Consumer Cyclical | $9.6B | — | 0 |
| SONG | Music Licensing, Inc. | Communication Services | $0.0M | — | 0 |
| MBIO | Mustang Bio, Inc. | Healthcare | $4.0M | — | 0 |
| MECPF | MUSTANG ENERGY CORP. | — | — | — | 0 |
| MFDB | Mutual Federal Bancorp, Inc. | Financial Services | $18.7M | — | 0 |
| MUYNY | Muyuan Foods Co. Ltd/ADR | — | — | — | 0 |
| MUZEU | Muzero Acquisition Corp | — | — | — | 0 |
| MVBF | MVB Financial Corp. | Financial Services | $383M | — | 0 |
| MYCB | My City Builders, Inc. | Real Estate | $2.2M | — | 0 |
| MYSZ | My Size, Inc. | Technology | $1.1M | — | 0 |
| MYE | Myers Industries, Inc. | Consumer Cyclical | $1.2B | — | 0 |
| MYND | Mynd.ai, Inc. | Technology | $1.6M | — | 0 |
| MYO | Myomo, Inc. | Healthcare | $64.5M | — | 0 |
| MYRG | MYR Group Inc. | Industrials | $4.6B | — | 0 |
| MYGN | Myriad Genetics, Inc. | Healthcare | $391M | — | 0 |
| MYSE | Myseum Inc. | Technology | $9.7M | — | 0 |
| MMCP | Myson, Inc. | — | — | — | 0 |
| NABL | N-able, Inc. | Technology | $757M | — | 0 |
| NVGLF | N.V. Gold Corporation | Basic Materials | $21.8M | — | 0 |