Roasso Kumamoto (J3-League): every transfer in and out, fees paid and earned, squad market value and €700k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Wataru Iwashita | Roasso Kumamoto | Iwaki | Free |
| 2026-02-01 | Eitaro Matsuda | Yokohama Marinos | Roasso Kumamoto | Free |
| 2026-02-01 | Sota Nagai | Tokyo Verdy | Roasso Kumamoto | Free |
| 2026-02-01 | Shunsuke Aoki | V-Varen Nagasaki | Roasso Kumamoto | Loan |
| 2026-02-01 | Shun Osaki | Roasso Kumamoto | Parceiro Nagano | Loan |
| 2026-01-12 | Rimu Matsuoka | Roasso Kumamoto | Matsumoto Yamaga | Free |
| 2026-01-12 | Yuhi Takemoto | Roasso Kumamoto | Ehime | Free |
| 2026-01-12 | Kaito Abe | Roasso Kumamoto | Tochigi | Free |
| 2026-01-12 | Ayumu Toyoda | Roasso Kumamoto | Sagan Tosu | Free |
| 2026-01-12 | Chihiro Konagaya | Roasso Kumamoto | Albirex Niigata | Free |
| 2026-01-12 | Ryo Shiohama | Roasso Kumamoto | Sagan Tosu | Free |
| 2026-01-01 | K. Kumashiro | Roasso Kumamoto | Eintracht Frankfurt II | €700k |
| 2025-07-28 | Rikuto Hashimoto | Rakuten Vissel Kobe | Roasso Kumamoto | Loan |
| 2025-04-01 | Anton Burns | Zelvia | Roasso Kumamoto | Loan |
| 2025-02-01 | Wataru Iwashita | Hitachi Kashiwa Reysol | Roasso Kumamoto | Free |
| 2025-02-01 | Yutaro Hakamata | Tokyo Verdy | Roasso Kumamoto | Loan |
| 2025-02-01 | Masato Handai | Tsukuba University | Roasso Kumamoto | Free |
| 2025-02-01 | Makoto Okazaki | Roasso Kumamoto | Kagoshima United | Free |
| 2025-02-01 | Player | Roasso Kumamoto | FC Tokushima | Free |
| 2025-01-20 | Ryo Shiohama | Fukushima United | Roasso Kumamoto | Free |