| 28 Aug 17 | S. de Jong Siem de Jong |  Newcastle UnitedNEW | → |  Ajax AmsterdamAJA | Undisclosed |
| 28 Aug 17 | S. de Jong Siem de Jong | Newcastle UnitedNEW | → | Ajax AmsterdamAJA | Undisclosed |
| 23 Aug 17 | D. Sánchez Davinson Sánchez | Ajax AmsterdamAJA | → |  Tottenham HotspurTOT | Undisclosed |
| 23 Aug 17 | D. Sánchez Davinson Sánchez | Ajax AmsterdamAJA | → | Tottenham HotspurTOT | Undisclosed |
| 24 Jul 17 | J. Riedewald Jairo Riedewald | Ajax AmsterdamAJA | → |  Crystal PalaceCRY | Undisclosed |
| 24 Jul 17 | J. Riedewald Jairo Riedewald | Ajax AmsterdamAJA | → | Crystal PalaceCRY | Undisclosed |
| 10 Jul 17 | K. Tete Kenny Tete | Ajax AmsterdamAJA | → |  LyonLYON | Undisclosed |
| 10 Jul 17 | K. Tete Kenny Tete | Ajax AmsterdamAJA | → | LyonLYON | Undisclosed |
| 05 Jul 17 | Kees de Boer | Ajax AmsterdamAJA | → |  Swansea CitySWA | Undisclosed |
| 05 Jul 17 | Kees de Boer | Ajax AmsterdamAJA | → | Swansea CitySWA | Undisclosed |
| 01 Jul 17 | D. Klaassen Davy Klaassen | Ajax AmsterdamAJA | → |  EvertonEVE | 27000000 |
| 01 Jul 17 | P. Clement Pelle Clement | Ajax AmsterdamAJA | → |  ReadingREA | Undisclosed |
| 01 Jul 17 | K. Huntelaar Klaas-Jan Huntelaar |  Schalke 04SCHA | → | Ajax AmsterdamAJA | Free |
| 01 Jul 17 | D. Klaassen Davy Klaassen | Ajax AmsterdamAJA | → | EvertonEVE | 27000000 |
| 01 Jul 17 | P. Clement Pelle Clement | Ajax AmsterdamAJA | → | ReadingREA | Undisclosed |
| 01 Jul 17 | K. Huntelaar Klaas-Jan Huntelaar | Schalke 04SCHA | → | Ajax AmsterdamAJA | Free |
| 31 Jan 17 | M. Dijks Mitchell Dijks | Ajax AmsterdamAJA | → |  Norwich CityNOR | Loan |
| 31 Jan 17 | A. El Ghazi Anwar El Ghazi | Ajax AmsterdamAJA | → |  LilleLILL | Undisclosed |
| 31 Jan 17 | M. Dijks Mitchell Dijks | Ajax AmsterdamAJA | → | Norwich CityNOR | Loan |
| 31 Jan 17 | A. El Ghazi Anwar El Ghazi | Ajax AmsterdamAJA | → | LilleLILL | Undisclosed |
| 18 Jan 17 | Franco Antonucci | Ajax AmsterdamAJA | → |  AS MonacoMON | Undisclosed |
| 18 Jan 17 | Franco Antonucci | Ajax AmsterdamAJA | → | AS MonacoMON | Undisclosed |