| august 22 2024 |  M. Boon | Mainz 05 |  FC Noro #5 (On loan) | (RSD453 493) |
| august 18 2024 |  D. Aaserud | Mainz 05 |  FC Los Palos #7 (On loan) | (RSD575 043) |
| june 29 2024 |  S. Hogland | Mainz 05 |  FC Goroka (On loan) | (RSD261 312) |
| june 29 2024 |  K. Smitha | Mainz 05 |  IRRiducibili Lazio 1900 | RSD31 530 431 |
| june 28 2024 |  J. Kubber | Mainz 05 | Dili #9 (On loan) | (RSD257 887) |
| june 27 2024 | B. Syafiq | Mainz 05 |  SC Cambuur | RSD21 983 020 |
| june 26 2024 | H. Kusuma | Mainz 05 | Sarpsborg | RSD44 392 511 |
| june 25 2024 |  S. Bjerg | Mainz 05 |  Borussia Bottrop | RSD26 445 426 |
| june 24 2024 |  S. Orurkin | Mainz 05 |  Red and black | RSD24 425 512 |
| may 10 2024 |  L. Herakis | Mainz 05 |  FC Parakou #2 (On loan) | (RSD493 871) |
| may 4 2024 | Z. Shabhi | Mainz 05 | Bandar Seri Begawan FC #60 (On loan) | (RSD350 260) |
| may 2 2024 | S. Djojopoespito | Mainz 05 | FC Honiara #24 | RSD20 322 618 |
| may 2 2024 | M. Tay | Mainz 05 |  FC Medan | RSD20 927 247 |
| march 18 2024 | A. Sahnon | Mainz 05 | FC Bondowoso (On loan) | (RSD260 660) |
| march 13 2024 | A. Karsumaatmaja | Mainz 05 |  FC Ngerulmud #17 (On loan) | (RSD950 106) |
| january 23 2024 | L. Herakis | Mainz 05 | Los Palos #5 (On loan) | (RSD274 898) |
| january 23 2024 | S. Bjerg | Mainz 05 | FC Venilale (On loan) | (RSD182 632) |
| december 5 2023 | M. Layar | Mainz 05 | FC Lorengau (On loan) | (RSD576 906) |
| december 4 2023 | V. Kana | Mainz 05 |  Zaanse Gaten on Tour (On loan) | (RSD152 647) |
| october 16 2023 | M. Layar | Mainz 05 |  Erfurt #2 (On loan) | (RSD518 084) |
| october 11 2023 |  R. Allonen | Mainz 05 |  Shen Hua FC | RSD26 119 425 |
| october 9 2023 |  P. Rossovskiy | Mainz 05 |  Dracena Melilla FC | RSD37 743 430 |
| august 22 2023 | M. Layar | Mainz 05 | FC Auki #10 (On loan) | (RSD296 103) |
| august 17 2023 | L. Kit | Mainz 05 |  Kingston Wolves FC | RSD29 167 000 |
| august 16 2023 | L. Cabrero | Mainz 05 | FC Kimbe | RSD19 723 400 |
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