Olympiacos U19: every transfer in and out, fees paid and earned, squad market value, €280k spent.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-07-09 | Christos Ligdas | Olympiacos U19 | Kifisia | Free |
| 2025-07-01 | Stavros Pnevmonidis | Olympiacos U19 | Olympiacos | — |
| 2025-07-01 | Nektarios Alafakis | Olympiacos U19 | Olympiacos B | — |
| 2025-07-01 | Georgios Kouraklis | Olympiacos U19 | Olympiacos | — |
| 2025-07-01 | Argyrios Liatsikouras | Olympiacos U19 | Olympiacos | — |
| 2024-07-01 | Theofanis Bakoulas | Olympiacos U19 | Olympiacos | — |
| 2024-07-01 | Athanasios Koutsogoulas | Olympiacos U19 | Olympiacos | — |
| 2024-07-01 | Antzelo Sina | Olympiacos U19 | Olympiacos | — |
| 2024-01-29 | Konstantinos Mavropoulos | Olympiacos U19 | Panserraik. U19 | Free |
| 2023-07-02 | Nikolaos Lolis | Olympiacos U19 | PAS Giannina | Loan |
| 2023-07-01 | Stavros Pnevmonidis | Olympiacos U17 | Olympiacos U19 | — |
| 2023-07-01 | Nikolaos Lolis | PAS U19 | Olympiacos U19 | Free |
| 2023-07-01 | Nektarios Alafakis | Olympiacos U17 | Olympiacos U19 | — |
| 2023-07-01 | Michalis Patiras | Olympiacos U19 | Olympiacos B | — |
| 2023-07-01 | Konstantinos Mavropoulos | Panetolikos U19 | Olympiacos U19 | Free |
| 2023-07-01 | Konstantinos Kyriazis | Olympiacos U19 | Without Club | — |
| 2023-07-01 | Konstantinos Kostoulas | Olympiacos U19 | Olympiacos B | — |
| 2023-07-01 | Georgios Kouraklis | Olympiacos U17 | Olympiacos U19 | — |
| 2023-07-01 | Georgios Charalampoglou | Olympiacos U19 | Olympiacos B | — |
| 2023-07-01 | Christos Mouzakitis | Olympiacos U19 | Olympiacos B | — |