ThespaKusatsu Gunma (J3-League): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-07 | Ikhsan Fandi | BG Pathum United | ThespaKusatsu Gunma | Free |
| 2026-07-01 | Kotaro Yamahara | Ehime | ThespaKusatsu Gunma | Loan |
| 2026-07-01 | Sean Kotake | S-Pulse | ThespaKusatsu Gunma | Loan |
| 2026-07-01 | Junya Nodake | Oita Trinita | ThespaKusatsu Gunma | Free |
| 2026-07-01 | Taika Nakashima | Consadole Sapporo | ThespaKusatsu Gunma | Free |
| 2026-07-01 | Jo Soma | Montedio Yamagata | ThespaKusatsu Gunma | Free |
| 2026-02-01 | Gijo Sehata | V-Varen Nagasaki | ThespaKusatsu Gunma | Free |
| 2026-02-01 | Shido Izuma | Consadole Sapporo | ThespaKusatsu Gunma | Loan |
| 2026-01-12 | Masato Nuki | Omiya Ardija | ThespaKusatsu Gunma | Free |
| 2025-08-13 | Toranosuke Onozeki | ThespaKusatsu Gunma | Fukuyama City | Loan |
| 2025-07-23 | Ryota Tagashira | ThespaKusatsu Gunma | Nara Club | Loan |
| 2025-07-16 | Atsuki Yamanaka | ThespaKusatsu Gunma | Iwaki | Free |
| 2025-07-07 | Sean Kotake | S-Pulse | ThespaKusatsu Gunma | Loan |
| 2025-07-04 | Taika Nakashima | Consadole Sapporo | ThespaKusatsu Gunma | Loan |
| 2025-06-25 | Faruzansana Mohamado | Hitachi Kashiwa Reysol | ThespaKusatsu Gunma | Loan |
| 2025-03-21 | Ryo Ishii | ThespaKusatsu Gunma | Yokohama FC | Free |
| 2025-03-05 | Masashi Wada | ThespaKusatsu Gunma | Portland Hearts of Pine | Free |
| 2025-02-01 | Tatsushi Koyanagi | Blaublitz Akita | ThespaKusatsu Gunma | Free |
| 2025-02-01 | Shuto Adachi | Rakuten Vissel Kobe | ThespaKusatsu Gunma | Loan |
| 2025-01-20 | Shota Aoki | Blaublitz Akita | ThespaKusatsu Gunma | Free |