Sl. Belupo U19: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-01-05 | Marko Ascic | Sl. Belupo U19 | Slaven Belupo | — |
| 2025-07-01 | Marko Petrovic | Sl. Belupo U19 | Slaven Belupo | — |
| 2025-07-01 | Leon Bosnjak | Sl. Belupo U19 | Slaven Belupo | — |
| 2025-07-01 | Jan Katic | Sl. Belupo U19 | Slaven Belupo | — |
| 2025-07-01 | Frano Vlasic | Sl. Belupo U19 | Slaven Belupo | — |
| 2025-06-30 | Frano Vlasic | NK Dugo Selo | Sl. Belupo U19 | Free |
| 2025-01-31 | Frano Vlasic | NK Dugo Selo | Sl. Belupo U19 | Loan |
| 2024-08-20 | Jan Katic | Lokomotiva U19 | Sl. Belupo U19 | — |
| 2024-07-01 | Zvonimir Katalinic | Sl. Belupo U19 | Slaven Belupo | — |
| 2024-07-01 | Marko Ascic | Sl. Belupo U17 | Sl. Belupo U19 | — |
| 2024-07-01 | Erik Ridjan | Sl. Belupo U19 | Slaven Belupo | — |
| 2024-01-03 | Filip Kruselj | Sl. Belupo U19 | Slaven Belupo | — |
| 2024-01-03 | Adriano Jagusic | Sl. Belupo U19 | Slaven Belupo | — |
| 2023-07-01 | Marko Petrovic | Sl. Belupo U17 | Sl. Belupo U19 | — |
| 2023-07-01 | Leon Bosnjak | Sl. Belupo U17 | Sl. Belupo U19 | — |
| 2023-02-15 | Frano Vlasic | NK Sesvete U17 | Sl. Belupo U19 | — |
| 2023-02-03 | Zvonimir Katalinic | Din. Zagreb U19 | Sl. Belupo U19 | — |
| 2022-08-31 | Danila Forov | Sl. Belupo U19 | HNK Rijeka U19 | — |
| 2022-08-09 | Erik Ridjan | NK Rudes U17 | Sl. Belupo U19 | — |
| 2022-07-01 | Gabriel Eskinja | Sl. Belupo U19 | Slaven Belupo | — |