Rayo Cantabria (Segunda Division RFEF: Group 1): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-01 | Héctor Mejía | Torrent | Rayo Cantabria | Free |
| 2026-07-08 | Ekain Díaz | Rayo Cantabria | SD Amorebieta | Free |
| 2026-07-01 | Samuel Calera | Rayo Cantabria | Barakaldo | Free |
| 2026-07-01 | Diego Fuentes | Rayo Cantabria | Real Jaén | Free |
| 2025-09-01 | Ekain Díaz | Real Sociedad III | Rayo Cantabria | Free |
| 2025-07-28 | Marco Carrascal | Rayo Cantabria | FC Cartagena | Free |
| 2025-07-07 | Dani González | Rayo Cantabria | Arenteiro | Free |
| 2025-07-01 | Player | Rayo Cantabria | SD Amorebieta | Free |
| 2025-07-01 | Jorge Salinas | Rayo Cantabria | Racing Santander | Free |
| 2025-01-28 | Isaac Obeng | Rayo Cantabria | Teruel | Free |
| 2025-01-17 | Player | Rayo Cantabria | Escobedo | Free |
| 2024-07-24 | Ángel Pérez | SD Huesca | Rayo Cantabria | Loan |
| 2024-07-17 | Player | Rayo Cantabria | Real Avilés | Free |
| 2024-07-16 | Player | Rayo Cantabria | Gimnástica Torrelavega | Free |
| 2024-07-08 | Player | Rayo Cantabria | Illescas | Free |
| 2024-07-03 | Marcos Bustillo | Rayo Cantabria | Sestao River | Free |
| 2024-07-03 | Mario Jorrín | Rayo Cantabria | Ponferradina | Free |
| 2024-07-01 | Mateo Gandarillas | Rayo Cantabria | Escobedo | Free |
| 2024-07-01 | Neco Celorio | Rayo Cantabria | Racing Santander | Free |
| 2024-01-26 | Player | Rayo Cantabria | Laredo | Loan |