| Date | Transaction |
|---|---|
| 10/1/18 | St. Louis Cardinals recalled RHP Conner Greene from Memphis Redbirds. |
| 10/1/18 | St. Louis Cardinals recalled RHP Derian Gonzalez from Springfield Cardinals. |
| 10/1/18 | St. Louis Cardinals recalled RHP Matt Bowman from Memphis Redbirds. |
| 10/1/18 | St. Louis Cardinals recalled LF Justin Williams from Memphis Redbirds. |
