JEF United U18: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2027-01-01 | Shunji Saito | JEF United U18 | JEF Utd. Chiba | — |
| 2026-02-01 | Makoto Himeno | JEF United U18 | JEF Utd. Chiba | — |
| 2024-04-01 | Haru Ito | JEF United Jg | JEF United U18 | — |
| 2020-04-01 | Ryota Kuboniwa | JEF United U18 | Rikkyo Univ. | Free |
| 2020-02-01 | Solomon Sakuragawa | JEF United U18 | JEF Utd. Chiba | — |
| 2017-04-01 | Solomon Sakuragawa | JEF United Jg | JEF United U18 | — |
| 2015-02-01 | Kyoga Nakamura | JEF United U18 | JEF Utd. Chiba | — |
| 2014-04-01 | Koji Toriumi | JEF United U18 | Meiji Uni | Free |
| 2012-04-01 | Yuto Yamashita | JEF United U18 | Aomori Yama. HS | Free |
| 2012-02-01 | Haruya Ide | JEF United U18 | JEF Utd. Chiba | — |