Columbia Fireflies Roster & Staff
Columbia Transactions
| Date | Transaction |
| 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 activated LHP Brandon Herbold from the Development List. |
| 09/02/26 | Columbia Fireflies transferred RHP Shane Van Dam to the Development List. |
| 09/01/26 | Columbia Fireflies activated 3B Ivan Sosa from the Development List. |