Spartak Kostroma (Russian First League): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-22 | Marko Bugarin | Bunyodkor | Spartak Kostroma | Free |
| 2026-07-14 | Đorđe Pantelić | Spartak Kostroma | Atyrau | Free |
| 2026-07-07 | Vladislav Lyakh | Spartak Kostroma | Dinamo Brest | Free |
| 2026-07-02 | Amir Mokhammad | Kaisar | Spartak Kostroma | Free |
| 2026-07-01 | Dimitri Gurtskaia | Meshakhte | Spartak Kostroma | Free |
| 2026-03-25 | Sergey Eshchenko | Spartak Kostroma | Minsk | Free |
| 2026-02-02 | Ilya Kalachev | Spartak Kostroma | Slavia | Free |
| 2026-01-19 | Kirill Kaplenko | Spartak Kostroma | Dinamo Minsk | Free |
| 2026-01-12 | Đorđe Pantelić | Radnik Bijeljina | Spartak Kostroma | Free |
| 2026-01-12 | Faruk Gogić | Radnik Bijeljina | Spartak Kostroma | Free |
| 2025-08-20 | Ilya Kalachev | Dinamo Minsk | Spartak Kostroma | Free |
| 2025-07-09 | Vladislav Lyakh | BATE | Spartak Kostroma | Free |
| 2024-07-05 | Roman Vegerya | Spartak Kostroma | Arsenal Dzerzhinsk | Free |
| 2024-07-04 | Maksim Chikanchi | Zhetysu | Spartak Kostroma | Free |
| 2024-02-07 | Yuri Lovets | Spartak Kostroma | Arsenal Dzerzhinsk | Free |
| 2024-01-17 | Nikita Melnikov | Spartak Kostroma | Slutsk | Free |
| 2024-01-09 | Dmitriy Miroshnichenko | Spartak Kostroma | Okzhetpes | Free |
| 2023-07-24 | Roman Vegerya | Torpedo BelAZ | Spartak Kostroma | Free |
| 2023-07-16 | Nikita Melnikov | Slutsk | Spartak Kostroma | Free |
| 2023-07-14 | Nikita Supranovich | BATE | Spartak Kostroma | Free |