Celtic B: every transfer in and out, fees paid and earned, squad market value and €2.6m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-02-27 | Francis Turley | Celtic B | Ayr United | Loan |
| 2026-01-21 | Mitchell Robertson | Celtic B | Livingston FC | — |
| 2025-10-01 | Sean McArdle | Celtic B | Partick Thistle | Loan |
| 2025-08-30 | Mitchel Frame | Celtic B | Aberdeen FC | — |
| 2025-08-01 | Mitchell Robertson | Celtic B | Inverness CT | Loan |
| 2025-07-19 | Jude Bonnar | Celtic B | Ayr United | Loan |
| 2025-07-11 | Liam Bonetig | Celtic B | Melbourne City | Free |
| 2025-07-01 | Dane Murray | Celtic B | Celtic | — |
| 2025-07-01 | Colby Donovan | Celtic B | Celtic | — |
| 2024-08-12 | Bosun Lawal | Celtic B | Stoke City | €2.3m |
| 2024-08-09 | Dane Murray | Celtic B | Queen's Park | Loan |
| 2024-07-05 | Rocco Vata | Celtic B | Watford | €281k |
| 2024-07-01 | Mitchel Frame | Celtic U18 | Celtic B | — |
| 2024-07-01 | Josh Clarke | Celtic B | Celtic | — |
| 2024-07-01 | Colby Donovan | Celtic U18 | Celtic B | — |
| 2024-02-24 | Josh Clarke | Celtic B | Ayr United | Loan |
| 2024-01-01 | Sean McArdle | Celtic U18 | Celtic B | — |
| 2023-09-14 | Liam Bonetig | West Sydney II | Celtic B | — |
| 2023-08-17 | Bosun Lawal | Celtic B | Fleetwood | Loan |
| 2023-08-05 | Josh Clarke | Celtic B | Airdrieonians | Loan |