HJK Klubi 04: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2024-08-10 | Altti Hellemaa | HJK Klubi 04 | JäPS | Free |
| 2024-04-03 | Altti Hellemaa | HJK Klubi 04 | JäPS | Loan |
| 2023-08-12 | Altti Hellemaa | HJK Klubi 04 | Kokkolan PV | Loan |
| 2023-03-06 | Altti Hellemaa | HJK Klubi 04 | SJK II | Loan |
| 2022-07-01 | Jaaso Jantunen | HJK Klubi 04 | SC Freiburg U19 | — |
| 2022-03-16 | Altti Hellemaa | Käpylän Pallo | HJK Klubi 04 | Free |
| 2022-01-01 | Rony Jansson | HJK Klubi 04 | Without Club | — |
| 2022-01-01 | Jaaso Jantunen | HJK U19 | HJK Klubi 04 | — |
| 2021-01-08 | Nooa Laine | HJK Klubi 04 | SJK Seinäjoki | Free |
| 2021-01-01 | Rony Jansson | HJK U20 | HJK Klubi 04 | — |
| 2021-01-01 | Casper Terho | HJK Klubi 04 | HJK Helsinki | — |
| 2020-01-01 | Matti Peltola | HJK Klubi 04 | HJK Helsinki | — |
| 2020-01-01 | Casper Terho | HJK U20 | HJK Klubi 04 | — |
| 2019-09-02 | Leo Walta | HJK Klubi 04 | Nordsjaell. U19 | — |
| 2019-04-08 | Nooa Laine | JJK Jyväskylä | HJK Klubi 04 | Free |
| 2019-01-01 | Tuomas Ollila | HJK Klubi 04 | FC KTP | Free |
| 2019-01-01 | Santeri Väänänen | HJK Klubi 04 | HJK Helsinki | — |
| 2019-01-01 | Matti Peltola | HJK U20 | HJK Klubi 04 | — |
| 2019-01-01 | Leo Walta | HJK U20 | HJK Klubi 04 | — |
| 2018-01-01 | Santeri Väänänen | HJK U20 | HJK Klubi 04 | — |