Roster y Personal de los Cardinals
Transacciones
| Fecha | Transacción |
| 08/06/26 | St. Louis Cardinals envian a RHP Tink Hence envian a rotundamente a FCL Cardinals. |
| 08/06/26 | St. Louis Cardinals reclamado RF Everson Pereira fuera de waivers de Chicago White Sox. |
| 08/04/26 | St. Louis Cardinals activan a LHP Caleb Ferguson. |
| 08/04/26 | St. Louis Cardinals envian a 3B Ramón Urías una asignación de rehabilitación a Memphis Redbirds. |
| 08/04/26 | St. Louis Cardinals envian a 3B Ramón Urías una asignación de rehabilitación a Memphis Redbirds. |
| 08/04/26 | St. Louis Cardinals opcionado LHP Quinn Mathews a Memphis Redbirds. |
| 08/04/26 | St. Louis Cardinals llamado 3B César Prieto de Memphis Redbirds. |
| 08/03/26 | St. Louis Cardinals firmado LHP Luke Harrison. |
| 08/03/26 | St. Louis Cardinals llamado RHP Hunter Dobbins de Memphis Redbirds. |
| 08/03/26 | St. Louis Cardinals cambian a LF Lars Nootbaar a Arizona Diamondbacks por RHP Daniel Eagen, LHP Sandro Santana y Player To Be Named Later. |
| 08/03/26 | St. Louis Cardinals cambian a LF Lars Nootbaar a Arizona Diamondbacks por RHP Daniel Eagen, LHP Sandro Santana y Player To Be Named Later. |
| 08/03/26 | St. Louis Cardinals cambian a LF Lars Nootbaar a Arizona Diamondbacks por RHP Daniel Eagen, LHP Sandro Santana y Player To Be Named Later. |
| 08/03/26 | St. Louis Cardinals cambian a RHP Dustin May y LHP JoJo Romero a Milwaukee Brewers por OF Alexander Frias y OF Josiah Ragsdale. |
| 08/03/26 | St. Louis Cardinals cambian a RHP Dustin May y LHP JoJo Romero a Milwaukee Brewers por OF Alexander Frias y OF Josiah Ragsdale. |
| 08/03/26 | St. Louis Cardinals cambian a RHP Dustin May y LHP JoJo Romero a Milwaukee Brewers por OF Alexander Frias y OF Josiah Ragsdale. |
| 08/03/26 | Cincinnati Reds cambian a LHP Caleb Ferguson a St. Louis Cardinals por Other Considerations. |
| 08/03/26 | St. Louis Cardinals cambian a RHP Dustin May y LHP JoJo Romero a Milwaukee Brewers por OF Alexander Frias y OF Josiah Ragsdale. |
| 08/01/26 | St. Louis Cardinals designado RHP Tink Hence para la asignación. |
| 08/01/26 | St. Louis Cardinals opcionado RHP Matt Svanson a Memphis Redbirds. |
| 08/01/26 | St. Louis Cardinals seleccionado el contrato de LHP Quinn Mathews de Memphis Redbirds. |