Sepsi OSK Sf. Gheorghe (Superliga): every transfer in and out, fees paid and earned, squad market value, €1.2m spent and €5.8m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-06 | Funsho Bamgboye | Hatayspor | Sepsi OSK Sf. Gheorghe | Free |
| 2026-07-01 | Gustavo Cascardo | Arda Kardzhali | Sepsi OSK Sf. Gheorghe | Free |
| 2026-07-01 | Aboubakar Keita | Diósgyőr | Sepsi OSK Sf. Gheorghe | Free |
| 2026-07-01 | David Lazar | FC Hermannstadt | Sepsi OSK Sf. Gheorghe | Free |
| 2026-07-01 | Doru Andrei | FC Voluntari | Sepsi OSK Sf. Gheorghe | Free |
| 2026-07-01 | Setigui Karamoko | Pau FC | Sepsi OSK Sf. Gheorghe | Free |
| 2026-07-01 | Bogdan Vătăjelu | Bihor Oradea | Sepsi OSK Sf. Gheorghe | Free |
| 2026-07-01 | Marius Coman | Sepsi OSK | UTA Arad | €60k |
| 2026-07-01 | Denis Haruț | Sepsi OSK Sf. Gheorghe | FC Voluntari | Free |
| 2026-01-22 | Ákos Nistor | Sepsi OSK Sf. Gheorghe | Kecskemeti TE | Loan |
| 2026-01-20 | Mihajlo Neskovic | Sepsi OSK Sf. Gheorghe | Budućnost | Loan |
| 2026-01-16 | Moses Mawa | HamKam | Sepsi OSK Sf. Gheorghe | Free |
| 2026-01-16 | Dino Skorup | Sepsi OSK Sf. Gheorghe | Sloga Doboj | Loan |
| 2026-01-09 | Răzvan Oaidă | FC Universitatea Cluj | Sepsi OSK Sf. Gheorghe | Free |
| 2026-01-08 | Giovani Ghimfus | Sepsi OSK | Metaloglobus | Loan |
| 2025-09-03 | Mavis Tchibota | Akron Togliatti | Sepsi OSK Sf. Gheorghe | Free |
| 2025-09-03 | Nacho Heras | ACSC FC Arges | Sepsi OSK Sf. Gheorghe | Free |
| 2025-09-02 | Adnan Aganovic | AFC Unirea 04 Slobozia | Sepsi OSK Sf. Gheorghe | Free |
| 2025-08-20 | Marius Coman | Sepsi OSK | UTA Arad | Loan |
| 2025-08-08 | Boris Cmiljanić | Karmiotissa | Sepsi OSK Sf. Gheorghe | Free |