| Name | Ticker |
|---|---|
| Machelen Cert | MAC |
| Machelen,Kuur.Cert | MACK |
| Marcel Thiry Cert | MARC |
| MDxHealth | MDXH |
| MediVision | MEDV |
| Melexis (D) | MELE |
| Miko | MIKO |
| Mithra Aiw Npv | MITRA |
| Mobistar | MOBB |
| Montea (Sicafi) | MONT |
| Montea C.V.A. | MON17 |
| Mopoli | MOP |
| Mopoli Fond | MOPF |
| Motors Liquid Cert | MTLB |
| Moury Construct | MOUR |
| Moury Construct Strip | MOURS |
| Movetis (D) (Wi) | MOVE |
| Movetis Stvvpr(Wi) | MOVES |