Schott Mainz (Dfb Pokal): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-13 | Takero Itoi | FSV Frankfurt | Schott Mainz | Free |
| 2026-07-01 | Player | Schott Mainz | Hüffelsheim Niederhausen | Free |
| 2026-07-01 | Player | Schott Mainz | Mechtersheim | Free |
| 2026-07-01 | Alexander Luigi Rimoldi | Schott Mainz | TuS Marienborn | Free |
| 2026-07-01 | Player | Schott Mainz | Basara Mainz | Free |
| 2026-07-01 | Player | Schott Mainz | Mechtersheim | Free |
| 2026-07-01 | Player | Schott Mainz | TBC | Free |
| 2026-07-01 | Player | Schott Mainz | Eddersheim | Free |
| 2026-01-30 | Takero Itoi | Schott Mainz | FSV Frankfurt | Free |
| 2025-08-01 | Player | Stuttgarter Kickers | Schott Mainz | Free |
| 2025-07-21 | Player | Mainz U19 | Schott Mainz | Free |
| 2025-07-01 | Lennart Thum | Schott Mainz | VfR Mannheim | Free |
| 2025-07-01 | Player | Schott Mainz | Gau-Odernheim | Free |
| 2025-07-01 | Player | Schott Mainz | Bayern Alzenau | Free |
| 2025-07-01 | Ismael Wiegand | TBC | Schott Mainz | Free |
| 2025-07-01 | Player | Schott Mainz | TuS Marienborn | Free |
| 2025-07-01 | Player | Schott Mainz | Pfeddersheim | Free |
| 2025-07-01 | Player | Darmstadt 98 II | Schott Mainz | Free |
| 2025-07-01 | Player | Eisbachtal | Schott Mainz | Free |
| 2025-01-14 | Ismael Wiegand | Schott Mainz | Greuther Fürth II | Free |