Transfers
Recent player movements in and out of the squad
| Date | Player | From | To | Type |
|---|---|---|---|---|
| 01.02.2026 | A. Nordin | FSV Mainz 05 | Rennes | Loan |
| 01.02.2026 | O. Ruoppi | FSV Mainz 05 | KuPS | Loan |
| 22.01.2026 | B. Bobzien | FSV Mainz 05 | — | Loan |
| 20.01.2026 | L. Bierschenk | FSV Mainz 05 | — | Transfer |
| 13.01.2026 | Hong Hyun-Seok | FSV Mainz 05 | Gent | Loan |
| 13.01.2026 | K. Schopp | FSV Mainz 05 | TSV Hartberg | Loan |
| 24.10.2025 | J. Debrah | FSV Mainz 05 | — | Free agent |
| 12.08.2025 | Aiman Dardari | FSV Mainz 05 | FC Augsburg | - |
| 31.07.2025 | M. Richter | FSV Mainz 05 | SV Darmstadt 98 | Loan |
| 31.07.2025 | E. Shabani | FSV Mainz 05 | — | Free agent |
| 30.07.2025 | Hong Hyun-Seok | FSV Mainz 05 | Nantes | Loan |
| 30.07.2025 | M. Richter | FSV Mainz 05 | SV Darmstadt 98 | Loan |
| 29.07.2025 | Hong Hyun-Seok | FSV Mainz 05 | Nantes | Loan |
| 28.07.2025 | K. Mata | FSV Mainz 05 | — | Free agent |
| 13.07.2025 | E. Fernandes | FSV Mainz 05 | BSC Young Boys | Transfer |
| 12.07.2025 | E. Fernandes | FSV Mainz 05 | BSC Young Boys | Transfer |
| 08.07.2025 | Jesaja Mustapha | FSV Mainz 05 | NEC Nijmegen | Transfer |
| 05.07.2025 | T. Krauß | FSV Mainz 05 | 1. FC Köln | Loan |
| 04.07.2025 | J. Burkardt | FSV Mainz 05 | Eintracht Frankfurt | Transfer |
| 04.07.2025 | T. Krauß | FSV Mainz 05 | 1. FC Köln | Loan |
| 03.07.2025 | J. Burkardt | FSV Mainz 05 | Eintracht Frankfurt | Transfer |
| 02.07.2025 | J. Burkardt | FSV Mainz 05 | Eintracht Frankfurt | Transfer |
| 01.07.2025 | L. Ajorque | FSV Mainz 05 | Stade Brestois 29 | Transfer |
| 01.07.2025 | M. Jenz | FSV Mainz 05 | VfL Wolfsburg | Back from Loan |
| 30.06.2025 | L. Ajorque | FSV Mainz 05 | Stade Brestois 29 | Transfer |
| 30.06.2025 | S. Toure | FSV Mainz 05 | — | - |
| 29.06.2025 | L. Ajorque | FSV Mainz 05 | Stade Brestois 29 | Transfer |
| 29.06.2025 | M. Jenz | FSV Mainz 05 | VfL Wolfsburg | Return from loan |
| 03.02.2025 | G. Vidović | FSV Mainz 05 | Bayern München | Return from loan |
| 03.02.2025 | A. Barkok | FSV Mainz 05 | FC Schalke 04 | — |
| 02.02.2025 | P. Schulz | FSV Mainz 05 | — | Loan |
| 02.02.2025 | G. Vidović | FSV Mainz 05 | Bayern München | Return from loan |
| 01.02.2025 | A. Barkok | FSV Mainz 05 | FC Schalke 04 | Transfer |
| 30.01.2025 | T. Krauß | FSV Mainz 05 | VfL Bochum | Loan |
| 02.01.2025 | K. Onisiwo | FSV Mainz 05 | Red Bull Salzburg | Transfer |
| 31.12.2024 | K. Onisiwo | FSV Mainz 05 | Red Bull Salzburg | Free agent |
| 30.08.2024 | E. Fernandes | FSV Mainz 05 | Stade Brestois 29 | Loan |
| 28.08.2024 | M. Richter | FSV Mainz 05 | Hamburger SV | Loan |
| 22.08.2024 | T. Krauß | FSV Mainz 05 | Luton | Loan |
| 14.08.2024 | B. Gruda | FSV Mainz 05 | Brighton | € 30M |
| 14.08.2024 | M. Müller | FSV Mainz 05 | — | N/A |
| 12.08.2024 | Conrad Scholl | FSV Mainz 05 | Ried | Free agent |
| 04.08.2024 | K. Kraft | FSV Mainz 05 | — | Free agent |
| 25.07.2024 | L. Ajorque | FSV Mainz 05 | Stade Brestois 29 | Loan |
| 02.07.2024 | L. Barreiro | FSV Mainz 05 | Benfica | Free |
| 01.07.2024 | D. Burgzorg | FSV Mainz 05 | — | N/A |
| 01.07.2024 | M. Papela | FSV Mainz 05 | SV Darmstadt 98 | Free |
| 01.07.2024 | L. Wilhelm | FSV Mainz 05 | — | Free |
| 01.07.2024 | S. van den Berg | FSV Mainz 05 | Liverpool | N/A |
| 01.07.2024 | B. Bobzien | FSV Mainz 05 | — | Loan |