Fukushima United (J3-League): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Koya Okuda | Football Club Mito HollyHock | Fukushima United | Free |
| 2026-02-01 | Kaito Tsuchiya | Kawasaki Frontale | Fukushima United | Loan |
| 2026-02-01 | Kazuyoshi Miura | Yokohama FC | Fukushima United | Loan |
| 2026-02-01 | Takatora Einaga | Kawasaki Frontale | Fukushima United | Loan |
| 2026-01-12 | Sung-ryong Jung | Kawasaki Frontale | Fukushima United | Free |
| 2025-08-04 | Kosei Ashibe | Zelvia | Fukushima United | Loan |
| 2025-02-07 | Player | Fukushima United | Kawasaki Frontale | Loan |
| 2025-02-01 | Riku Iijima | Ventforet Kofu | Fukushima United | Loan |
| 2025-02-01 | Kaisei Kano | Montedio Yamagata | Fukushima United | Loan |
| 2025-02-01 | Kota Yui | Kawasaki Frontale | Fukushima United | Loan |
| 2025-02-01 | Ryoma Ishii | Hosei University | Fukushima United | Free |
| 2025-02-01 | Tsubasa Nakamura | Hosei University | Fukushima United | Free |
| 2025-02-01 | Player | Fukushima United | Arterivo Wakayama | Free |
| 2025-01-20 | Tomoki Ueda | Gifu | Fukushima United | Free |
| 2025-01-20 | Takumi Fujitani | Tochigi | Fukushima United | Free |
| 2025-01-20 | Tatsuya Anzai | Azul Claro Numazu | Fukushima United | Free |
| 2025-01-20 | Ryuji Sawakami | Fukushima United | Vanraure Hachinohe | Free |
| 2025-01-20 | Ryo Shiohama | Fukushima United | Roasso Kumamoto | Free |
| 2024-08-16 | Riita Mori | Albirex Niigata | Fukushima United | Loan |
| 2024-08-02 | Player | Roasso Kumamoto | Fukushima United | Loan |