Jeju United U15: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2024-01-01 | Jae-won Heo | Jeju United U15 | Jeju United U18 | — |
| 2021-01-01 | Jae-won Heo | J. Oedo ES | Jeju United U15 | — |
| 2018-01-01 | Dong-hyun Kim | Jeju United U15 | Jeju United U18 | — |
| 2015-01-01 | Dong-hyun Kim | Unknown | Jeju United U15 | — |