| 7/2/19 |
St. Louis Cardinals placed 3B Matt Carpenter on the 10-day injured list retroactive to June 29, 2019. Lower back strain. |
| 7/2/19 |
St. Louis Cardinals activated RHP John Brebbia from the paternity list. |
| 7/2/19 |
St. Louis Cardinals signed free agent RHP Brayan Ramirez to a minor league contract. |
| 7/2/19 |
St. Louis Cardinals signed free agent RHP Americo Lugo to a minor league contract. |
| 7/3/19 |
St. Louis Cardinals reassigned RHP Ryan Helsley to the minor leagues. |
| 7/3/19 |
St. Louis Cardinals optioned RHP Ryan Helsley to Memphis Redbirds. |
| 7/3/19 |
St. Louis Cardinals signed free agent RHP Hansel Marcelino to a minor league contract. |
| 7/5/19 |
St. Louis Cardinals optioned CF Lane Thomas to Memphis Redbirds. |
| 7/5/19 |
St. Louis Cardinals recalled Rangel Ravelo from Memphis Redbirds. |
| 7/8/19 |
St. Louis Cardinals optioned LHP Tyler Webb to Memphis Redbirds. |
| 7/9/19 |
St. Louis Cardinals signed CF Tommy Jew. |
| 7/11/19 |
St. Louis Cardinals placed C Yadier Molina on the 10-day injured list retroactive to July 8, 2019. Right thumb tendon sprain. |
| 7/11/19 |
St. Louis Cardinals activated 3B Matt Carpenter from the 10-day injured list. |
| 7/11/19 |
St. Louis Cardinals transferred RHP Jordan Hicks from the 10-day injured list to the 60-day injured list. Torn UCL in right elbow. |
| 7/11/19 |
St. Louis Cardinals optioned 1B Rangel Ravelo to Memphis Redbirds. |
| 7/11/19 |
St. Louis Cardinals selected the contract of LHP Chasen Shreve from Memphis Redbirds. |
| 7/11/19 |
St. Louis Cardinals recalled C Andrew Knizner from Memphis Redbirds. |
| 7/16/19 |
St. Louis Cardinals placed 3B Matt Carpenter on the 10-day injured list. Right foot contusion. |
| 7/16/19 |
St. Louis Cardinals signed free agent CF Tyler Reichenborn to a minor league contract. |
| 7/16/19 |
St. Louis Cardinals recalled SS Edmundo Sosa from Memphis Redbirds. |
| 7/20/19 |
St. Louis Cardinals optioned SS Edmundo Sosa to Memphis Redbirds. |
| 7/20/19 |
St. Louis Cardinals recalled RHP Ryan Helsley from Memphis Redbirds. |
| 7/21/19 |
St. Louis Cardinals optioned RHP Ryan Helsley to Memphis Redbirds. |
| 7/21/19 |
St. Louis Cardinals optioned RHP Dominic Leone to Memphis Redbirds. |
| 7/21/19 |
St. Louis Cardinals recalled 1B Rangel Ravelo from Memphis Redbirds. |
| 7/21/19 |
St. Louis Cardinals recalled LHP Tyler Webb from Memphis Redbirds. |
