Sanfrecce U18: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-02-01 | Shimon Kobayashi | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2026-02-01 | Hikaru Ogawa | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2025-02-01 | Yotaro Nakajima | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2023-02-01 | Sota Koshimichi | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2020-02-01 | Shun Ayukawa | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2019-04-01 | Taichi Yamasaki | Sanfrecce U18 | Juntendo Univ. | Free |
| 2018-09-02 | Shunki Higashi | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2018-04-01 | Taishi Semba | Sanfrecce U18 | RKU | Free |
| 2018-04-01 | Makoto Mitsuta | Sanfrecce U18 | RKU | Free |
| 2018-02-01 | Takumu Kawamura | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2018-02-01 | Keisuke Osako | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2017-02-01 | Towa Yamane | Sanfrecce U18 | Cerezo Osaka | Free |
| 2016-04-01 | Mutsuki Kato | Sanfrecce U18 | Chuo University | Free |
| 2016-02-01 | Yoichi Naganuma | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2015-04-01 | Hayato Araki | Sanfrecce U18 | Kansai Univ. | Free |
| 2013-03-25 | Kazuya Miyahara | Sanfrecce U18 | Sanf. Hiroshima | — |
| 2013-03-25 | Hayao Kawabe | Sanfrecce U18 | Sanf. Hiroshima | — |