| Player | Next Club | Type | Announced | Start | Duration | End | Amount | Remark |
|---|---|---|---|---|---|---|---|---|
| Brian Brobbey | RB Leipzig | Transfer | 07/01/2021 | |||||
| Carel Eiting | Genk | Transfer | 06/25/2021 | 07/01/2021 | ||||
| Neraysho Kasanwirjo | FC Groningen | Transfer | 07/01/2021 | |||||
| Daan Reiziger | Vitesse | Transfer | 07/01/2021 | |||||
| Tunahan Tasci | None | Contract ended | 07/01/2021 | |||||
| Quinten Timber | Utrecht | Transfer | 07/01/2021 | |||||
| Alex Mendez | FC Vizela | Transfer | 07/02/2021 | 07/02/2021 | ||||
| Kjell Scherpen | Brighton & Hove Albion | Transfer | 07/16/2021 | 07/16/2021 | ||||
| Noah Gesser | None | Deceased | 07/30/2021 | |||||
| Jurgen Ekkelenkamp | Hertha BSC | Transfer | 08/27/2021 | 08/27/2021 |
| Player | Previous Club | Type | Announced | Start | Duration | End | Amount | Remark |
|---|---|---|---|---|---|---|---|---|
| Yoram Boerhout | SC Heerenveen | Transfer | 02/23/2021 | 07/01/2021 | 3 | 06/30/2024 | ||
| Jay Gorter | Go Ahead Eagles | Transfer | 07/01/2021 | |||||
| Stanis Idumbo Muzambo | AA Gent | Transfer | 04/28/2021 | 07/01/2021 | 3 | 06/30/2024 | ||
| Remko Pasveer | Vitesse | Transfer | 07/01/2021 | 2 | 06/30/2023 | |||
| Joey Roggeveen | FC Volendam | Transfer | 07/01/2021 | 1 | 06/30/2022 | |||
| Steven Berghuis | Feyenoord | Transfer | 07/16/2021 | 4 | 06/30/2025 | |||
| Mohamed Daramy | FC Kopenhagen | Transfer | 08/28/2021 | 08/28/2021 | 5 | 06/30/2026 |
| Player | Announced | Start | Duration | End | Amount | Remark |
|---|---|---|---|---|---|---|
| Youri Baas | 03/26/2021 | 07/01/2021 | 3 | 06/30/2024 | ||
| Tristan Gooijer | 06/22/2021 | 07/01/2021 | 3 | 06/30/2024 | ||
| Alvaro Henry | 04/09/2021 | 07/01/2021 | 3 | 06/30/2024 | ||
| David Kalokoh | 07/01/2021 | 3 | 06/30/2024 | |||
| Rico Speksnijder | 02/23/2021 | 07/01/2021 | 3 | 06/30/2024 | ||
| Sylvano Vos | 03/17/2021 | 07/01/2021 | 3 | 06/30/2024 | ||
| Donny Warmerdam | 03/26/2021 | 07/01/2021 | 3 | 06/30/2024 | ||
| Gabriël Misehouy | 04/09/2021 | 08/01/2021 | 3 | 06/30/2024 | ||
| Oualid Agougil | 03/17/2021 | 09/01/2021 | 3 | 06/30/2024 | ||
| Mateja Milovanovic | 10/15/2021 | 10/01/2021 | 3 | 06/30/2024 |
| Player | Announced | Start | Duration | End | Amount | Remark |
|---|---|---|---|---|---|---|
| Kristian Hlynsson | 02/23/2021 | 07/01/2021 | 2 | 06/30/2023 | ||
| Lisandro Martínez | 10/02/2021 | 07/01/2021 | 4 | 06/30/2025 | ||
| Christian Rasmussen | 08/03/2021 | 07/01/2021 | 3 | 06/30/2024 | ||
| Devyne Rensch | 06/18/2021 | 07/01/2021 | 4 | 06/30/2025 | ||
| Maarten Stekelenburg | 05/12/2021 | 07/01/2021 | 1 | 06/30/2022 | ||
| Dusan Tadic | 07/16/2021 | 07/01/2021 | 3 | 06/30/2024 |