Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 10/2026 |  | Calvin Carrilho | DF |  | AZ Alkmaar U19 | Alkmaar U19 |
| 10/2026 | | Gijs Groot | FW | | AZ Alkmaar U19 | Alkmaar U19 |
| 09/2026 | | Rome-Jayden Owusu-Oduro | GK |  | AZ Alkmaar | AZ Alkmaar |
| 08/2026 | | Chavarello Hellings | FW | | AZ Alkmaar U19 | Alkmaar U19 |
| 08/2026 |  | Andrea Natali | DF | | AZ Alkmaar | AZ Alkmaar |
| 08/2026 |  | Matěj Šín | MF | | AZ Alkmaar | AZ Alkmaar |
| 08/2026 | | Sam de Grand | DF | | AZ Alkmaar | AZ Alkmaar |
| 07/2026 | | Ismail Ka | GK |  | Feyenoord U21 | U21 |
| 07/2026 |  | Maximilian Ibrahimović | FW |  | AC Milan II | AC Milan II |
| 07/2026 | | Jerolldino Bergraaf | FW |  | SBV Excelsior | Excelsior |
| 07/2026 | | Nick Homan | GK | | AZ Alkmaar U19 | Alkmaar U19 |
| 07/2026 | | Rick Luijer | MF | | AZ Alkmaar U19 | Alkmaar U19 |
| 07/2026 | | Melle Roede | FW |  | Heracles Almelo | Heracles |
| 07/2026 | | Sem van Duijn | FW |  | Telstar | Telstar |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2026 |  | Rodrigo Macedo | FW |  | Vitória Guimarães B | Vitória Guimarães B |
| 09/2026 | | Maxim Dekker | DF |  | Willem II | Willem II |
| 08/2026 | | Matěj Šín | MF |  | ADO Den Haag | ADO Den Haag |
| 08/2026 | | Sem van Duijn | FW |  | FC Utrecht | FC Utrecht |
| 08/2026 | | Billy van Duijl | DF |  | SC Cambuur | SC Cambuur |
| 08/2026 | | Sylvano Comvalius | AS-CO |  | Royal Antwerp FC | Antwerpen |
| 07/2026 | | Kasper Boogaard | MF | | Willem II | Willem II |
| 07/2026 | | Nick Twisk | MF |  | Derry City | Derry City |
| 07/2026 | | Timme Elffers | DF | | AZ Alkmaar U19 | Alkmaar U19 |
| 07/2026 | | Andrea Natali | DF |  | Bayer Leverkusen U19 | Leverkusen U19 |
| 07/2026 | | Valentino Promes | DF |  | Twente/Heracles U19 | U19 |
| 07/2026 |  | Osazuwa | FW |  | Real Sociedad B | Real Sociedad B |
| 07/2026 | | Anthony Smits | FW |  | Grazer AK | Grazer AK |
| 07/2026 | | Deacon van der Klaauw | FW |  | FC Volendam U21 | U21 |
| 07/2026 | | Joey Potveer | GK-CO |  | Al Ahly SC | Al Ahly SC |