| 2026-09-22 | M. Nalepa | Serik Spor → Odra Opole | Free agent |
| 2026-08-13 | K. Ari | Kastamonuspor → Serik Spor | Free agent |
| 2026-07-30 | Maksut Taskiran | Elazığspor → Serik Spor | Free agent |
| 2026-07-28 | H. Alpsoy | Boluspor → Serik Spor | Free agent |
| 2026-07-27 | M. Aktaş | Ankaraspor → Serik Spor | Free agent |
| 2026-07-26 | E. Çelenk | Şanlıurfaspor → Serik Spor | Free agent |
| 2026-07-23 | B. Asan | Serik Spor → Sebat Gençlikspor | Free agent |
| 2026-07-12 | R. Guibero | Serik Spor → Dinamo Minsk | Free agent |
| 2026-07-09 | R. Adeola | Serik Spor → FC Gomel | Free agent |
| 2026-07-08 | B. Ceylan | Serik Spor → Muğlaspor | Free agent |
| 2026-06-30 | S. Dilli | Serik Spor → Muğlaspor | Free agent |
| 2026-06-30 | A. Martynov | Serik Spor → Aris | Free agent |
| 2026-06-29 | F. Çolak | Yozgat Bld Bozokspor → Serik Spor | Return from loan |
| 2026-06-29 | H. Yukseloglu | Galata → Serik Spor | Return from loan |
| 2026-06-29 | E. Terzi | Serik Spor → Trabzonspor (U19) | Return from loan |
| 2026-06-29 | G. Spasov | Serik Spor → Tikveš | Return from loan |
| 2026-06-29 | M. Tunalı | Serik Spor → Kocaelispor | Return from loan |
| 2026-06-29 | V. Sapan | Serik Spor → Amed | Return from loan |
| 2026-06-29 | G. Altıparmak | Serik Spor → Gençlerbirliği S.K. | Return from loan |
| 2026-06-29 | Sertan Yildiz | Beykoz İshaklıspor → Serik Spor | Return from loan |
| 2026-06-29 | Yusuf İslam Atay | Ağrı 1970 → Serik Spor | Return from loan |
| 2026-06-29 | C. Nwachukwu | Serik Spor → Sheffield Utd | Return from loan |
| 2026-06-29 | J. Topalli | Serik Spor → Bandırmaspor | Return from loan |
| 2026-06-29 | A. Montes | Serik Spor → Necaxa | Return from loan |
| 2026-06-15 | C. Cavlan | Serik Spor → Aliağa FAŞ | Free agent |
| 2026-02-05 | V. Sapan | Amed → Serik Spor | Loan |
| 2026-02-05 | C. Nwachukwu | Sheffield Utd → Serik Spor | Loan |
| 2026-02-05 | J. Topalli | Bandırmaspor → Serik Spor | Loan |
| 2026-02-05 | A. Koç | Sarıyer → Serik Spor | Free agent |
| 2026-02-05 | C. Cavlan | Iğdır FK → Serik Spor | Free agent |
| 2026-02-05 | A. Montes | Necaxa → Serik Spor | Loan |
| 2026-02-04 | C. Demir | Hatayspor → Serik Spor | Free agent |
| 2026-02-04 | K. Köşker | Giresunspor → Serik Spor | Free agent |
| 2026-02-04 | Daniel Akyildiz Ahmet | Erbaaspor → Serik Spor | Free agent |
| 2026-02-01 | A. Yuran | Serik Spor → Volgar Astrakhan | Free agent |
| 2026-02-01 | G. Akkan | Serik Spor → Boluspor | Free agent |
| 2026-01-29 | E. Terzi | Serik Spor → Beşiktaş | Return from loan |
| 2026-01-27 | H. Yukseloglu | Serik Spor → Galata | Loan |
| 2026-01-24 | K. Şen | Serik Spor → Sakaryaspor | Free agent |
| 2026-01-22 | M. Nalepa | Gençlerbirliği S.K. → Serik Spor | Free agent |
| 2026-01-14 | M. Demirözü | Yeni Mersin Idmanyurdu → Serik Spor | Free agent |
| 2026-01-14 | M. Ibrahimoglu | Konyaspor → Serik Spor | Transfer |
| 2026-01-13 | I. Berkovskiy | Serik Spor → Torpedo Moskva | Free agent |
| 2026-01-13 | K. Gotsuk | Serik Spor → Torpedo Moskva | Free agent |
| 2026-01-08 | R. Guibero | AS Trencin → Serik Spor | Free agent |
| 2026-01-08 | L. Skvortsov | Aktobe → Serik Spor | Free agent |
| 2026-01-07 | R. Adeola | FC Gomel → Serik Spor | Free agent |
| 2026-01-07 | Joseph Okoro | Istiqlol → Serik Spor | Free agent |
| 2026-01-06 | E. Çelenk | Serik Spor → Şanlıurfaspor | Free agent |
| 2026-01-06 | Muhammed Mallayev | Tuzlaspor → Serik Belediyespor | Free agent |
| 2026-01-05 | E. Terzi | Trabzonspor (U19) → Serik Belediyespor | Loan |
| 2026-01-05 | E. Nefiz | Buca FK → Serik Belediyespor | Free agent |
| 2026-01-05 | G. Spasov | Tikveš → Serik Spor | Loan |
| 2026-01-05 | S. Ekinci | Serik Spor → Kestel Çilek | - |
| 2026-01-04 | Ş. Çetin | Serik Spor → Mardin 1969 | Transfer |
| 2026-01-04 | João Amaral | Serik Spor → Bandırmaspor | Free agent |
| 2026-01-03 | E. Çelenk | Serik Belediyespor → Celenk Erhan | Free agent |
| 2026-01-03 | B. İşçiler | Serik Spor → Vanspor FK | Transfer |
| 2026-01-02 | E. Ulusoy | Luner SV → Serik Belediyespor | Transfer |
| 2026-01-01 | G. Karadeniz | Serik Spor → Aliağa FAŞ | Transfer |
| 2026-01-01 | Marcos Silva | Serik Spor → Sarıyer | Free agent |