Cardinals Roster & Staff
Transactions
| Date | Transaction |
| 06/30/15 | St. Louis Cardinals placed RHP Matt Belisle on the 15-day disabled list retroactive to June 26, 2015. Right elbow inflammation |
| 06/30/15 | St. Louis Cardinals transferred RHP Jordan Walden from the 15-day disabled list to the 60-day disabled list. Right bicep inflammation. |
| 06/30/15 | St. Louis Cardinals selected the contract of Marcus Hatley from Memphis Redbirds. |
| 06/29/15 | St. Louis Cardinals signed OF Harrison Bader. |
| 06/29/15 | St. Louis Cardinals signed 3B Bryce Denton. |
| 06/25/15 | St. Louis Cardinals activated RHP Lance Lynn from the 15-day disabled list. |
| 06/25/15 | St. Louis Cardinals optioned LHP Tyler Lyons to Memphis Redbirds. |
| 06/24/15 | St. Louis Cardinals signed C Ryan McCarvel. |
| 06/24/15 | St. Louis Cardinals signed C Chris Chinea. |
| 06/23/15 | St. Louis Cardinals signed LHP Ian Oxnevad. |
| 06/22/15 | St. Louis Cardinals signed 2B Andrew Brodbeck. |
| 06/19/15 | St. Louis Cardinals signed RHP Max Almonte. |
| 06/19/15 | St. Louis Cardinals recalled Greg Garcia from Memphis Redbirds. |
| 06/19/15 | St. Louis Cardinals signed RHP Brennan Leitao. |
| 06/19/15 | St. Louis Cardinals signed RHP Luke Harrison. |
| 06/19/15 | St. Louis Cardinals optioned C Ed Easley to Memphis Redbirds. |
| 06/19/15 | St. Louis Cardinals optioned RHP Mitch Harris to Memphis Redbirds. |
| 06/19/15 | St. Louis Cardinals recalled Xavier Scruggs from Memphis Redbirds. |
| 06/18/15 | St. Louis Cardinals signed free agent C Riley Drongesen to a minor league contract. |
| 06/16/15 | St. Louis Cardinals signed 1B R.J. Dennard. |
| 06/16/15 | St. Louis Cardinals signed RHP Greg Tomchick. |
| 06/16/15 | 1B R.J. Dennard roster status changed by St. Louis Cardinals. |
| 06/16/15 | St. Louis Cardinals signed RHP Carson Cross. |
| 06/16/15 | St. Louis Cardinals signed 2B Daniel Martin. |
| 06/16/15 | St. Louis Cardinals signed OF Tom Spitz. |
| 06/16/15 | St. Louis Cardinals signed 1B R.J. Dennard. |
| 06/16/15 | St. Louis Cardinals signed LHP Jacob Evans. |
| 06/16/15 | St. Louis Cardinals signed C Jesse Jenner. |
| 06/15/15 | St. Louis Cardinals signed 3B Paul DeJong. |
| 06/15/15 | St. Louis Cardinals signed free agent C Allen Staton to a minor league contract. |
| 06/15/15 | St. Louis Cardinals signed 2B Dylan Tice. |
| 06/15/15 | St. Louis Cardinals signed 2B Dylan Tice. |
| 06/15/15 | St. Louis Cardinals signed OF Nick Plummer. |
| 06/15/15 | St. Louis Cardinals signed OF Orlando Olivera. |
| 06/15/15 | St. Louis Cardinals signed RHP Jake Woodford. |
| 06/15/15 | St. Louis Cardinals signed free agent LHP Brady Bowen to a minor league contract. |
| 06/15/15 | St. Louis Cardinals signed RHP Jordan Hicks. |
| 06/15/15 | St. Louis Cardinals signed free agent 2B Josh Swirchak to a minor league contract. |
| 06/15/15 | St. Louis Cardinals signed C Stephen Zavala. |
| 06/15/15 | St. Louis Cardinals signed 2B Joseph Hawkins. |
| 06/15/15 | St. Louis Cardinals signed free agent SS Michael Polcyn to a minor league contract. |
| 06/15/15 | St. Louis Cardinals signed free agent RHP Harley Holt to a minor league contract. |
| 06/15/15 | St. Louis Cardinals signed RHP Ben Yokley. |
| 06/15/15 | St. Louis Cardinals signed 2B Luke Doyle. |
| 06/15/15 | St. Louis Cardinals signed 1B Hunter Newman. |
| 06/15/15 | St. Louis Cardinals signed CF Craig Aikin. |
| 06/15/15 | St. Louis Cardinals signed LHP Chandler Hawkins. |
| 06/15/15 | St. Louis Cardinals signed RHP Ryan Helsley. |
| 06/12/15 | St. Louis Cardinals recalled Tyler Lyons from Memphis Redbirds. |
| 06/12/15 | St. Louis Cardinals placed RHP Lance Lynn on the 15-day disabled list retroactive to June 8, 2015. Right forearm strain |
| 06/09/15 | St. Louis Cardinals recalled Miguel Socolovich from Memphis Redbirds. |
| 06/09/15 | St. Louis Cardinals placed LF Matt Holliday on the 15-day disabled list. Strained right quadriceps |
| 06/05/15 | St. Louis Cardinals optioned LF Tommy Pham to Memphis Redbirds. |
| 06/05/15 | St. Louis Cardinals transferred 1B Matt Adams from the 15-day disabled list to the 60-day disabled list. Torn right quad. |