| may 8 2023 |  F. Zapater | Girbraltar Town |  Southend-on-Sea #4 (On loan) | (RSD119 930) |
| march 15 2023 | M. Mexia | Girbraltar Town | Southend-on-Sea #4 (On loan) | (RSD138 544) |
| august 22 2022 | R. Greatbatch |  Dream Team | Southend-on-Sea #4 (On loan) | (RSD108 214) |
| may 12 2020 |  B. Szymaszek | Southend-on-Sea #4 | Zdunska Wola | RSD2 156 368 |
| may 9 2020 |  Ē. Dimants | Southend-on-Sea #4 | FC Daugavpils #32 | RSD1 700 192 |
| april 14 2020 | A. Vidyashankar | Southend-on-Sea #4 | None | RSD1 586 304 |
| february 24 2020 |  J. Brunn | Southend-on-Sea #4 |  Fuglafjaðor | RSD1 699 200 |
| october 11 2019 |  F. Waugh | Southend-on-Sea #4 | None | RSD1 116 665 |
| september 20 2019 | J. Carleton | Southend-on-Sea #4 | None | RSD1 116 665 |
| september 18 2019 |  B. Šerić | Southend-on-Sea #4 | None | RSD1 388 016 |
| may 11 2019 |  Z. Hámori | Bala Town FC | Southend-on-Sea #4 (On loan) | (RSD393 213) |
| may 11 2019 | A. Lewko | EGS Torpedo Koczała | Southend-on-Sea #4 (On loan) | (RSD1 075 269) |
| may 11 2019 |  S. Jóngeirsson | Southend-on-Sea #4 |  Άρις Μεσσηνίας | RSD1 719 001 |
| march 22 2019 |  R. Škrbić | FC Tukums #15 | Southend-on-Sea #4 (On loan) | (RSD690 000) |
| march 22 2019 | E. Christiani | Fuchsia FC | Southend-on-Sea #4 (On loan) | (RSD338 391) |
| march 22 2019 |  A. Mulder | Sheffield City #10 | Southend-on-Sea #4 (On loan) | (RSD375 000) |
| march 18 2019 | B. Szymaszek | Millwall | Southend-on-Sea #4 | RSD13 867 500 |
| january 27 2019 | V. Pērkons | Spēks no tētiem | Southend-on-Sea #4 (On loan) | (RSD314 764) |
| january 27 2019 | E. Endziņš | Sheffield City #10 | Southend-on-Sea #4 (On loan) | (RSD366 926) |
| january 27 2019 |  K. Ebbesen |  FC Bærum #3 | Southend-on-Sea #4 (On loan) | (RSD429 261) |
| january 26 2019 | T. Washburn | Southend-on-Sea #4 |  FC Taipei #15 | RSD1 993 125 |
| january 26 2019 | T. Watkin | Southend-on-Sea #4 |  White Dragons | RSD1 477 500 |
| january 25 2019 |  E. Maini | FC Riga #29 | Southend-on-Sea #4 | RSD10 500 000 |
| january 25 2019 | A. Vidyashankar | Oskarshamn FF | Southend-on-Sea #4 | RSD7 892 850 |
| december 7 2018 | J. Raczkiewicz |  Falkirk | Southend-on-Sea #4 (On loan) | (RSD308 686) |
