Columbia Fireflies Roster & Staff
Columbia Transactions
| Date | Transaction |
| 08/25/26 | Columbia Fireflies transferred LHP Brandon Herbold to the Development List. |
| 08/25/26 | RHP Grant Fontenot assigned to Columbia Fireflies from ACL Royals. |
| 08/20/26 | Columbia Fireflies placed RHP Randy Ramnarace on the 7-day injured list. |
| 08/20/26 | Columbia Fireflies activated LHP Brandon Herbold from the Development List. |
| 08/11/26 | Columbia Fireflies transferred SS Ivan Sosa to the Development List. |
| 08/11/26 | Columbia Fireflies transferred LHP Brandon Herbold to the Development List. |
| 08/11/26 | SS Jhonayker Ugarte assigned to Columbia Fireflies from ACL Royals. |
| 08/11/26 | LHP Justin LeGuernic assigned to Columbia Fireflies from ACL Royals. |
| 08/11/26 | RHP Dalton Hill assigned to Columbia Fireflies from ACL Royals. |
| 08/11/26 | SS Tyson Moran assigned to Columbia Fireflies from ACL Royals. |
| 08/07/26 | Columbia Fireflies placed LHP Carter Holton on the 7-day injured list. |
| 08/04/26 | Columbia Fireflies activated LHP Carter Holton. |
| 08/04/26 | OF Daniel Lopez assigned to Columbia Fireflies from ACL Royals. |
| 08/04/26 | SS Camden Johnson assigned to Columbia Fireflies from ACL Royals. |
| 08/04/26 | OF Angel Ramirez assigned to ACL Royals from Columbia Fireflies. |
| 08/03/26 | Columbia Fireflies released SS Josi Novas. |
| 08/02/26 | LHP Carter Holton assigned to Columbia Fireflies. |