Columbia Fireflies Roster & Staff
Columbia Transactions
| Date | Transaction |
| 05/17/25 | SS Colton Becker assigned to Omaha Storm Chasers from Columbia Fireflies. |
| 05/16/25 | RHP Landon Marceaux retired. |
| 05/13/25 | Columbia Fireflies released RHP Ismael Michel. |
| 05/13/25 | LHP David Shields assigned to Columbia Fireflies from ACL Royals. |
| 05/03/25 | Columbia Fireflies sent RHP Landon Marceaux on a rehab assignment to ACL Royals. |
| 05/03/25 | Columbia Fireflies sent RHP Landon Marceaux on a rehab assignment to ACL Royals. |