Grimsby Town (League Two): every transfer in and out, fees paid and earned, squad market value, €135k spent and €960k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-28 | Harvey Cartwright | Hull City | Grimsby Town | Loan |
| 2026-07-26 | Jude Soonsup-Bell | Grimsby Town | Port FC | Free |
| 2026-07-24 | Tyrell Warren | Grimsby Town | Solihull Moors | Free |
| 2026-07-01 | Andy Cook | Bradford | Grimsby Town | Free |
| 2026-07-01 | Josh Andrews | Gillingham | Grimsby Town | Free |
| 2026-07-01 | George McEachran | Grimsby Town | Chesterfield | Free |
| 2026-03-04 | Zak Gilsenan | Grimsby Town | Gateshead | Loan |
| 2026-01-30 | Maldini Kacurri | Arsenal U21 | Grimsby Town | Free |
| 2026-01-19 | Danny Rose | Grimsby Town | Barrow | Free |
| 2026-01-17 | Zak Gilsenan | Grimsby Town | Buxton | Loan |
| 2026-01-12 | Andy Cook | Bradford | Grimsby Town | Loan |
| 2025-12-20 | Jackson Smith | Barnsley | Grimsby Town | Loan |
| 2025-11-20 | Richard O'Donnell | Derby | Grimsby Town | Loan |
| 2025-09-12 | Matthew Carson | Grimsby Town | Boston United | Free |
| 2025-09-01 | Neo Eccleston | Huddersfield Town | Grimsby Town | Loan |
| 2025-08-26 | Clarke Oduor | Bradford | Grimsby Town | Loan |
| 2025-08-11 | Jude Soonsup-Bell | Córdoba CF | Grimsby Town | Free |
| 2025-07-31 | Rekeil Pyke | Grimsby Town | Truro City | Free |
| 2025-07-31 | Harvey Cribb | Grimsby Town | Cobh Ramblers | Free |
| 2025-07-31 | Curtis Thompson | Grimsby Town | Spalding United | Free |