Cardinals Roster & Staff
Transactions
| Date | Transaction |
| 11/03/26 | Boston Red Sox traded LHP Eduardo Rivera to St. Louis Cardinals for RHP Juan García. |
| 11/03/26 | Boston Red Sox traded LHP Eduardo Rivera to St. Louis Cardinals for RHP Juan García. |
| 11/02/26 | St. Louis Cardinals designated RHP Chase Hampton for assignment. |
| 11/02/26 | St. Louis Cardinals activated RHP Max Rajcic from the 60-day injured list. |
| 11/02/26 | RHP Ryne Stanek elected free agency. |
| 11/02/26 | Baltimore Orioles claimed RHP Chase Hampton off waivers from St. Louis Cardinals. |