Lech Youth: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2023-07-01 | Kamil Jakóbczyk | Lech Youth | Lech U19 | — |
| 2022-05-03 | Igor Brzyski | Lech Youth | Lech U19 | — |
| 2022-02-01 | Michał Gurgul | Lech Youth | Lech U19 | — |
| 2022-01-01 | Wojciech Mońka | Lech Youth | Lech U19 | — |
| 2021-07-01 | Igor Brzyski | Lechia Youth | Lech Youth | — |
| 2020-08-07 | Antoni Kozubal | Lech Youth | Lech Poznan II | — |
| 2019-08-02 | Filip Borowski | Lech Youth | Lech Poznan II | — |
| 2018-08-25 | Krzysztof Bąkowski | Lech Youth | Lech U19 | — |
| 2018-04-15 | Filip Szymczak | Lech Youth | Lech U19 | — |
| 2018-03-26 | Filip Marchwinski | Lech Youth | Lech U19 | — |
| 2018-01-01 | Jakub Kamiński | Lech Youth | Lech U19 | — |
| 2017-08-21 | Szymon Czyż | Lech Youth | Lech U19 | — |
| 2016-07-01 | Mateusz Skrzypczak | Lech Youth | Lech U19 | — |
| 2015-07-01 | Szymon Czyż | Gdynia Youth | Lech Youth | Free |
| 2015-07-01 | Jakub Moder | Lech Youth | Lech U19 | — |
| 2015-07-01 | Jakub Kamiński | Szombierki B. | Lech Youth | — |
| 2014-07-01 | Serafin Szota | Lech Youth | Lech U19 | — |
| 2014-07-01 | Robert Gumny | Lech Youth | Lech U19 | — |
| 2014-07-01 | Kacper Chodyna | Lech Youth | Lech U19 | — |
| 2014-07-01 | Jakub Moder | Wa. Poznan Yth. | Lech Youth | — |