Celtic U20: every transfer in and out, fees paid and earned, squad market value, €120k spent.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2018-07-01 | Stephen Welsh | Celtic U20 | Celtic B | — |
| 2018-07-01 | Ross Doohan | Celtic U20 | Celtic B | — |
| 2018-07-01 | Robbie Deas | Celtic U20 | Celtic B | — |
| 2018-07-01 | Mikey Johnston | Celtic U20 | Celtic B | — |
| 2018-07-01 | Kerr McInroy | Celtic U20 | Celtic B | — |
| 2018-07-01 | Ewan Henderson | Celtic U20 | Celtic B | — |
| 2018-07-01 | Conor Hazard | Celtic U20 | Celtic B | — |
| 2018-07-01 | Calvin Miller | Celtic U20 | Celtic | — |
| 2018-07-01 | Anthony Ralston | Celtic U20 | Celtic | — |
| 2018-03-16 | Anthony Ralston | Celtic U20 | Dundee United | Loan |
| 2018-01-25 | Conor Hazard | Celtic U20 | Falkirk | Loan |
| 2017-08-31 | Aidan Nesbitt | Celtic U20 | MK Dons | — |
| 2017-08-17 | Ross Doohan | Celtic U20 | Morton | Loan |
| 2017-07-01 | Stephen Welsh | Celtic U17 | Celtic U20 | — |
| 2017-07-01 | Robbie Deas | Celtic U17 | Celtic U20 | — |
| 2017-07-01 | Kerr McInroy | Celtic U17 | Celtic U20 | — |
| 2017-07-01 | Jamie McCart | Celtic U20 | Celtic | — |
| 2017-07-01 | Ewan Henderson | Celtic U17 | Celtic U20 | — |
| 2017-01-31 | Jamie McCart | Celtic U20 | Inverness CT | Loan |
| 2016-08-09 | Aidan Nesbitt | Celtic U20 | Morton | Loan |