Trinita U18: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2021-02-01 | Masaki Yumiba | Trinita U18 | Oita Trinita | — |
| 2019-02-01 | Keita Takahata | Trinita U18 | Oita Trinita | — |
| 2016-02-01 | Tomoki Iwata | Trinita U18 | Oita Trinita | — |
| 2011-02-01 | Ken Matsubara | Trinita U18 | Oita Trinita | — |