Soongsil Univ.: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-01-17 | Jun-ha Kim | Soongsil Univ. | Jeju SK | Free |
| 2025-01-17 | Byung-wook Choi | Soongsil Univ. | Jeju SK | Free |
| 2024-01-01 | Jun-ha Kim | Jeju United U18 | Soongsil Univ. | — |
| 2024-01-01 | Byung-wook Choi | Jeju United U18 | Soongsil Univ. | — |
| 2023-01-01 | Gyu-hyeon Choe | Soongsil Univ. | Pocheon Citizen | Free |
| 2022-01-01 | Jong-hyeon Park | Soongsil Univ. | FC Anyang | Free |
| 2021-01-12 | Tae-won Kang | Soongsil Univ. | Suwon Bluewings | Free |
| 2019-01-01 | Tae-won Kang | S.Bluewings U18 | Soongsil Univ. | — |
| 2019-01-01 | Jong-hyeon Park | FC Anyang U18 | Soongsil Univ. | — |
| 2019-01-01 | Gyu-hyeon Choe | Jungkyung HS | Soongsil Univ. | — |
| 2018-01-01 | Sang-min Lee | Soongsil Univ. | Ulsan Hyundai | Free |
| 2017-01-01 | Dong-jun Lee | Soongsil Univ. | Busan IPark | Free |
| 2016-01-01 | Sang-min Lee | Ulsan H. U18 | Soongsil Univ. | — |
| 2015-01-01 | Tae-hee Lee | Soongsil Univ. | Seongnam FC | Free |
| 2015-01-01 | Dong-jun Lee | Busan IPark U18 | Soongsil Univ. | — |
| 2011-01-01 | Tae-hee Lee | Gwacheon HS | Soongsil Univ. | — |