| When | Movement | Decision | Who |
|---|---|---|---|
| 29.02.2028 | 5y · $181.9K/y | Contract renewal offered | |
| 04.01.2028 | Ajax → Ajax U20 | Administrative demotion | Klaassen Teun |
| 03.01.2028 | Transfer listed | Contract expiring, seeking fee before free departure | Klaassen Teun |
| 01.11.2027 | 5y · $172.4K/y | Contract renewal rejected | |
| 31.10.2027 | 5y · $172.4K/y | Contract renewal offered | |
| 03.07.2027 | 5y · $156.0K/y | Contract renewal rejected | |
| 02.07.2027 | 5y · $156.0K/y | Contract renewal offered |