Kustošija (First NL): every transfer in and out, fees paid and earned, squad market value and €6.6m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-09 | El Arbi Hillel Soudani | NK Maribor | Kustošija | Free |
| 2026-07-01 | El Arbi Hillel Soudani | NK Maribor | Kustošija | Free |
| 2026-01-30 | Luka Prslja | Jarun | Kustošija | Free |
| 2026-01-13 | Frankie Hvid | Glentoran | Kustošija | Free |
| 2025-09-03 | Wibuala Junior Bita | Athletic Club II | Kustošija | Free |
| 2025-08-21 | Nikica Peranovic | NK Rudes | Kustošija | Loan |
| 2025-08-12 | Antonio Rajic | GNK Dinamo Zagreb | Kustošija | Loan |
| 2025-08-08 | Player | Vizela U23 | Kustošija | Free |
| 2025-08-07 | Matija Ruskovacki | GNK Dinamo Zagreb | Kustošija | Loan |
| 2025-08-04 | Ivor Ljubanović | Kustošija | Budoni | Free |
| 2025-08-01 | Noel Djurkovic | NK Lokomotiva Zagreb | Kustošija | Loan |
| 2025-07-23 | Filip Markanovic | NK Lokomotiva Zagreb | Kustošija | Loan |
| 2025-07-17 | Player | Kustošija | Krizevci | Free |
| 2025-07-15 | J. Doležal | NK Rudes | Kustošija | Free |
| 2025-07-15 | T. Krizmanić | Croatia Zmijavci | Kustošija | Free |
| 2025-07-14 | Ivan Graf | Opatija | Kustošija | Free |
| 2025-01-31 | Baye Coulibaly | Kustošija | Crown Legacy | €2m |
| 2025-01-28 | Player | Bjelovar | Kustošija | Free |
| 2025-01-28 | Wisdom Ubani | Kustošija | Ikorodu City | Free |
| 2025-01-27 | Player | Zagorec | Kustošija | Free |