Marítimo U23: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2023-07-01 | Carlos Eduardo | Marítimo U23 | Marítimo | — |
| 2022-07-01 | Vitor Eudes | Marítimo U23 | Marítimo | — |
| 2021-08-01 | Carlos Eduardo | Nacional U19 | Marítimo U23 | — |
| 2021-07-16 | Vitor Eudes | Cruzeiro | Marítimo U23 | Free |
| 2021-07-01 | Moisés Mosquera | Marítimo U23 | Marítimo B | — |
| 2020-11-25 | Léo Andrade | Marítimo U23 | Marítimo | — |
| 2020-07-01 | Chico Banza | Marítimo U23 | Marítimo B | — |
| 2019-08-31 | Liangming Lin | Gondomar | Marítimo U23 | Loan |
| 2019-07-31 | Léo Andrade | Coritiba U20 | Marítimo U23 | Free |
| 2019-07-01 | Rui Encarnação | Marítimo U23 | Machico | Free |
| 2019-07-01 | Moisés Mosquera | Unknown | Marítimo U23 | — |
| 2018-11-01 | Chico Banza | Leixões B | Marítimo U23 | — |
| 2018-07-01 | Rui Encarnação | Câmara Lobos | Marítimo U23 | — |