M. McNulty transfers
| Date | Type | From | To |
|---|---|---|---|
| 2025-09-03 | Free agent | — | Spartans |
| 2025-09-03 | Free agent | St George City FA | Spartans |
| 2025-04-09 | Free Transfer | Shamrock Rovers | Spartans |
| 2025-01-29 | Free agent | Shamrock Rovers | — |
| 2024-08-08 | Free | Spartans | Shamrock Rovers |
| 2024-02-21 | N/A | Orange County SC | Spartans |
| 2021-08-13 | Loan | Reading | Dundee Utd |
| 2021-07-01 | N/A | Dundee Utd | Reading |
| 2020-10-05 | Loan | Reading | Dundee Utd |
| 2020-07-01 | N/A | Hibernian | Reading |
| 2020-01-31 | Loan | Reading | Hibernian |
| 2019-07-24 | Loan | Reading | Sunderland |
| 2019-01-31 | Loan | Reading | Hibernian |
| 2018-07-06 | N/A | Coventry | Reading |
| 2017-07-01 | Free | Sheffield Utd | Coventry |
| 2017-01-01 | N/A | Bradford | Sheffield Utd |
| 2016-08-31 | Loan | Sheffield Utd | Bradford |
| 2016-07-01 | N/A | Portsmouth | Sheffield Utd |
| 2015-11-06 | Loan | Sheffield Utd | Portsmouth |
| 2014-07-01 | N/A | Livingston | Sheffield Utd |