Swansea U18: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2023-09-01 | Iwan Morgan | Swansea U18 | Brentford B | — |
| 2023-07-01 | Kyrell Wilson | Swansea U18 | Swansea U21 | — |
| 2023-07-01 | Filip Lissah | Swansea U18 | Swansea U21 | — |
| 2022-07-01 | Joel Cotterill | Swansea U18 | Swansea U21 | — |
| 2022-07-01 | Iwan Morgan | Swansea Yth. | Swansea U18 | — |
| 2022-07-01 | Cameron Congreve | Swansea U18 | Swansea | — |
| 2021-07-01 | Kyrell Wilson | Chelsea Youth | Swansea U18 | Free |
| 2021-07-01 | Joel Cotterill | Swansea Yth. | Swansea U18 | — |
| 2021-07-01 | Filip Lissah | Chelsea Youth | Swansea U18 | Free |
| 2020-07-01 | Cameron Congreve | Swansea Yth. | Swansea U18 | — |
| 2020-07-01 | Ali Al-Hamadi | Swansea U18 | Swansea U23 | — |
| 2018-07-01 | Ben Cabango | Swansea U18 | Swansea U23 | — |
| 2018-07-01 | Ali Al-Hamadi | Tranmere U18 | Swansea U18 | — |
| 2017-07-01 | Marco Dulca | Swansea U18 | Swansea U23 | — |
| 2017-07-01 | Liam Cullen | Swansea U18 | Swansea U23 | — |
| 2016-07-01 | Ben Cabango | Swansea Yth. | Swansea U18 | — |
| 2015-08-28 | Marco Dulca | U Cluj U18 | Swansea U18 | Free |
| 2015-07-01 | Rhys Norrington-Davies | Swansea U18 | Kinetic Academy | Free |
| 2015-07-01 | Joe Rodon | Swansea U18 | Swansea U21 | — |
| 2015-07-01 | Daniel James | Swansea U18 | Swansea U21 | — |