Olympiakos Piraeus II (Super League Greece 2): every transfer in and out, fees paid and earned, squad market value, €3.9m spent and €300k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-30 | Argyrios Liatsikouras | Olympiakos Piraeus II | Kalamata | Loan |
| 2026-07-28 | Player | Olympiakos Piraeus II | Marko | Free |
| 2026-07-27 | Mathieu Valbuena | Olympiakos Piraeus II | Santa Lucia | Free |
| 2026-07-18 | Diamanti Legisi | Volos | Olympiakos Piraeus II | Free |
| 2026-07-08 | Antonio Zarzana | Olympiakos Piraeus II | Antequera | Free |
| 2026-01-09 | Antonio Zarzana | Volos | Olympiakos Piraeus II | Free |
| 2025-09-12 | Bilal Mazhar | PAS Lamia 1964 | Olympiakos Piraeus II | Free |
| 2025-09-10 | Player | Asteras Tripolis II | Olympiakos Piraeus II | Free |
| 2025-09-10 | Zain Silcott-Duberry | AFC Bournemouth U21 | Olympiakos Piraeus II | Free |
| 2025-08-11 | Mathieu Valbuena | Athens Kallithea | Olympiakos Piraeus II | Free |
| 2025-07-11 | Player | Olympiacos F.C. U19 | Olympiakos Piraeus II | Free |
| 2025-07-10 | Player | Asteras Tripolis U19 | Olympiakos Piraeus II | €1.2m |
| 2025-07-10 | Nikolaos Zouglis | A.G.S Asteras Tripolis | Olympiakos Piraeus II | Free |
| 2025-07-01 | Athanasios Koutsogoulas | Olympiacos | Olympiakos Piraeus II | Free |
| 2025-07-01 | Player | Olympiacos F.C. U19 | Olympiakos Piraeus II | Free |
| 2025-07-01 | Player | Olympiacos F.C. U19 | Olympiakos Piraeus II | Free |
| 2025-07-01 | Player | Olympiacos F.C. U19 | Olympiakos Piraeus II | Free |
| 2025-07-01 | Diby Keita | Olympiacos | Olympiakos Piraeus II | Free |
| 2025-07-01 | Player | Olympiacos F.C. U19 | Olympiakos Piraeus II | Free |
| 2025-07-01 | Player | Olympiacos | Olympiakos Piraeus II | Free |