West Ham U18: every transfer in and out, fees paid and earned, squad market value, €30k spent.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2024-07-01 | Ezra Mayers | West Ham U18 | West Ham U21 | — |
| 2024-07-01 | Emeka Adiele | West Ham U18 | West Ham U21 | — |
| 2023-07-01 | Oliver Scarles | West Ham U18 | West Ham U21 | — |
| 2023-07-01 | Lewis Orford | West Ham U18 | West Ham U21 | — |
| 2023-07-01 | Kaelan Casey | West Ham U18 | West Ham U21 | — |
| 2023-07-01 | George Earthy | West Ham U18 | West Ham U21 | — |
| 2023-07-01 | Ezra Mayers | West Ham Yth. | West Ham U18 | — |
| 2023-07-01 | Emeka Adiele | West Ham Yth. | West Ham U18 | — |
| 2023-07-01 | Callum Marshall | West Ham U18 | West Ham U21 | — |
| 2022-07-01 | Jacob Knightbridge | West Ham U18 | West Ham U21 | — |
| 2022-07-01 | Divin Mubama | West Ham U18 | West Ham U21 | — |
| 2022-01-04 | Callum Marshall | Linfield U18 | West Ham U18 | — |
| 2021-07-01 | Oliver Scarles | West Ham Yth. | West Ham U18 | — |
| 2021-07-01 | Lewis Orford | West Ham Yth. | West Ham U18 | — |
| 2021-07-01 | Levi Laing | West Ham U18 | West Ham U21 | — |
| 2021-07-01 | Kamarai Swyer | West Ham U18 | West Ham U21 | — |
| 2021-07-01 | Kaelan Casey | West Ham Yth. | West Ham U18 | — |
| 2021-07-01 | Freddie Potts | West Ham U18 | West Ham U23 | — |
| 2021-07-01 | Dominic Sadi | West Ham U18 | Stoke U18 | — |
| 2021-07-01 | Amadou Diallo | West Ham U18 | West Ham U21 | — |