Willem II U19: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2019-07-01 | Connor van den Berg | Willem II U19 | Willem II | — |
| 2019-07-01 | Benjamin Bouchouari | Willem II U19 | Fortuna U19 | Free |
| 2018-07-01 | Luuk Wouters | Willem II U19 | Groningen U21 | Free |
| 2018-07-01 | Connor van den Berg | Utrecht U17 | Willem II U19 | Free |
| 2017-07-01 | Zakaria Aboukhlal | Willem II U19 | PSV U19 | — |
| 2017-07-01 | Benjamin Bouchouari | KV Mechelen Yth | Willem II U19 | Free |
| 2016-07-01 | Zakaria Aboukhlal | Willem II U17 | Willem II U19 | — |
| 2016-07-01 | Roshon van Eijma | Willem II U19 | Roda JC U21 | Free |
| 2016-07-01 | Luuk Wouters | Willem II U17 | Willem II U19 | — |
| 2015-07-01 | Roshon van Eijma | Willem II U17 | Willem II U19 | — |
| 2015-02-01 | Frenkie de Jong | Willem II U19 | Willem II U21 | — |
| 2014-09-01 | Frenkie de Jong | Willem II U17 | Willem II U19 | — |
| 2012-07-01 | Mattijs Branderhorst | Willem II/RKC-19 | Willem II | — |
| 2012-01-01 | Virgil Misidjan | Willem II/RKC-19 | Willem II | — |
| 2011-10-01 | Mattijs Branderhorst | Willem II/RKC Y. | Willem II/RKC-19 | — |
| 2011-07-01 | Ryan Sanusi | Willem II/RKC-19 | Willem II U21 | — |
| 2011-01-01 | Ryan Sanusi | G. Beerschot U19 | Willem II/RKC-19 | — |
| 2010-07-01 | Virgil van Dijk | Willem II/RKC-19 | FC Groningen U21 | Free |
| 2010-07-01 | Virgil Misidjan | Willem II/RKC-17 | Willem II/RKC-19 | — |