Columbia Fireflies Roster & Staff
Columbia Transactions
| Date | Transaction |
| 09/08/26 | OF Henry Ramos assigned to Quad Cities River Bandits from Columbia Fireflies. |
| 09/08/26 | C Ricson Gonzalez assigned to Northwest Arkansas Naturals from Columbia Fireflies. |
| 09/08/26 | RHP Coleman Picard assigned to Northwest Arkansas Naturals from Columbia Fireflies. |
| 09/08/26 | 2B Connor Rasmussen assigned to Northwest Arkansas Naturals from Columbia Fireflies. |
| 09/08/26 | SS Camden Johnson assigned to Quad Cities River Bandits from Columbia Fireflies. |
| 09/03/26 | Columbia Fireflies transferred RHP Michael Lombardi to the Development List. |
| 09/03/26 | RHP Alberto Toribio assigned to Columbia Fireflies from ACL Royals. |
| 09/02/26 | Columbia Fireflies activated LHP Brandon Herbold from the Development List. |
| 09/02/26 | Columbia Fireflies transferred RHP Shane Van Dam to the Development List. |
| 09/02/26 | Columbia Fireflies activated LHP Brandon Herbold from the Development List. |
| 09/01/26 | Columbia Fireflies activated 3B Ivan Sosa from the Development List. |