Cardinals Roster & Staff
Transactions
| Date | Transaction |
| 06/30/12 | St. Louis Cardinals recalled Maikel Cleto from Memphis Redbirds. |
| 06/30/12 | St. Louis Cardinals transferred RHP Kyle McClellan from the 15-day disabled list to the 60-day disabled list. |
| 06/30/12 | St. Louis Cardinals optioned LHP Sam Freeman to Memphis Redbirds. |
| 06/30/12 | St. Louis Cardinals optioned RHP Eduardo Sanchez to Memphis Redbirds. |
| 06/30/12 | St. Louis Cardinals selected the contract of Barret Browning from Memphis Redbirds. |
| 06/29/12 | St. Louis Cardinals signed OF James Ramsey. |
| 06/28/12 | St. Louis Cardinals signed free agent C Ricardo Lizcano to a minor league contract. |
| 06/28/12 | 3B Stephen Piscotty assigned to Quad Cities River Bandits from St. Louis Cardinals. |
| 06/25/12 | St. Louis Cardinals signed LHP Max Foody. |
| 06/22/12 | St. Louis Cardinals activated CF Jon Jay from the 15-day disabled list. |
| 06/22/12 | St. Louis Cardinals activated 3B Matt Carpenter from the 15-day disabled list. |
| 06/22/12 | St. Louis Cardinals optioned Adron Chambers to Memphis Redbirds. |
| 06/22/12 | St. Louis Cardinals optioned 1B Matt Adams to Memphis Redbirds. |
| 06/19/12 | Skip Schumaker roster status changed by St. Louis Cardinals. |
| 06/19/12 | St. Louis Cardinals signed free agent OF David Popkins to a minor league contract. |
| 06/19/12 | St. Louis Cardinals signed free agent RHP Juan Caballero. |
| 06/18/12 | OF Matthew Young assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | St. Louis Cardinals optioned Maikel Cleto to Memphis Redbirds. |
| 06/18/12 | Jordan Walton assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | LHP Lee Stoppelman assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | Anthony Melchionda assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | LHP Kyle Helisek assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | 3B Jacob Wilson assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | RHP Joe Cuda assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | LHP Tim Cooney assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | 3B Patrick Wisdom assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | Kyle Barraclough assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | LHP Ben O'Shea assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | RHP Joseph Scanio assigned to Batavia Muckdogs from St. Louis Cardinals. |
| 06/18/12 | St. Louis Cardinals signed free agent RHP Burny Mitchem to a minor league contract. |
| 06/17/12 | St. Louis Cardinals signed free agent RHP Zach Petrick to a minor league contract. |
| 06/17/12 | Yoenny Gonzalez assigned to GCL Cardinals from St. Louis Cardinals. |
| 06/17/12 | Brett Wiley assigned to GCL Cardinals from St. Louis Cardinals. |
| 06/17/12 | 1B Jacoby Almaraz assigned to GCL Cardinals from St. Louis Cardinals. |
| 06/17/12 | RHP Christopher Thomas assigned to GCL Cardinals from St. Louis Cardinals. |
| 06/17/12 | LHP Josh Renfro assigned to GCL Cardinals from St. Louis Cardinals. |
| 06/17/12 | LHP Javier Machuca assigned to GCL Cardinals from St. Louis Cardinals. |
| 06/17/12 | Joey Donofrio assigned to GCL Cardinals from St. Louis Cardinals. |
| 06/17/12 | St. Louis Cardinals signed RHP Cory Jones. |
| 06/17/12 | St. Louis Cardinals signed free agent RHP Jeff Rauh to a minor league contract. |
| 06/16/12 | St. Louis Cardinals signed 3B Stephen Piscotty. |
| 06/15/12 | St. Louis Cardinals signed IF Carson Kelly. |
| 06/15/12 | St. Louis Cardinals signed free agent RHP Thomas Lee to a minor league contract. |
| 06/14/12 | St. Louis Cardinals signed free agent RHP Jacob Booden to a minor league contract. |
| 06/14/12 | St. Louis Cardinals signed RHP Michael Wacha. |
| 06/14/12 | St. Louis Cardinals signed RHP Christopher Thomas. |
| 06/14/12 | St. Louis Cardinals signed LHP Josh Renfro. |
| 06/13/12 | St. Louis Cardinals signed free agent OF Jordan Walton to a minor league contract. |
| 06/11/12 | St. Louis Cardinals signed LHP Javier Machuca. |
| 06/10/12 | St. Louis Cardinals selected the contract of RHP Joe Kelly from Memphis Redbirds. |
| 06/10/12 | St. Louis Cardinals optioned C Steven Hill to Memphis Redbirds. |
| 06/10/12 | St. Louis Cardinals transferred RHP Chris Carpenter from the 15-day disabled list to the 60-day disabled list. |
| 06/09/12 | St. Louis Cardinals optioned LHP John Gaub to Memphis Redbirds. |
| 06/09/12 | St. Louis Cardinals signed 3B Patrick Wisdom. |
| 06/09/12 | St. Louis Cardinals signed C Steve Bean. |
| 06/09/12 | St. Louis Cardinals signed LHP Tim Cooney. |
| 06/09/12 | St. Louis Cardinals signed RHP Kyle Barraclough. |
| 06/09/12 | St. Louis Cardinals signed OF Yoenny Gonzalez. |
| 06/09/12 | St. Louis Cardinals signed C Rowan Wick. |
| 06/09/12 | St. Louis Cardinals signed 3B Jacob Wilson. |
| 06/09/12 | St. Louis Cardinals signed SS Brett Wiley. |
| 06/09/12 | St. Louis Cardinals signed SS Anthony Melchionda. |
| 06/09/12 | St. Louis Cardinals signed 2B Bruce Caldwell. |
| 06/09/12 | St. Louis Cardinals signed RHP Joseph Scanio. |
| 06/09/12 | St. Louis Cardinals signed 1B Jeremy Schaffer. |
| 06/09/12 | St. Louis Cardinals signed RHP Chris Perry. |
| 06/09/12 | St. Louis Cardinals signed RHP Steven Gallardo. |
| 06/09/12 | St. Louis Cardinals signed OF Matthew Young. |
| 06/09/12 | St. Louis Cardinals signed 3B Jacoby Almaraz. |
| 06/09/12 | St. Louis Cardinals signed LHP Lee Stoppelman. |
| 06/09/12 | St. Louis Cardinals signed RHP Dixon Llorens. |
| 06/09/12 | St. Louis Cardinals signed LHP Steven Sabatino. |
| 06/09/12 | St. Louis Cardinals signed RHP Joe Cuda. |
| 06/09/12 | St. Louis Cardinals signed OF Dodson McPherson. |
| 06/09/12 | St. Louis Cardinals signed LHP Kyle Helisek. |
| 06/09/12 | St. Louis Cardinals signed RHP Joey Donofrio. |
| 06/09/12 | St. Louis Cardinals signed RHP Ronnie Shaban. |
| 06/09/12 | St. Louis Cardinals signed LHP Mark Trentacosta. |
| 06/09/12 | St. Louis Cardinals signed LHP Ben O'Shea. |
| 06/09/12 | St. Louis Cardinals signed RHP Michael Aldrete. |
| 06/09/12 | St. Louis Cardinals claimed John Gaub off waivers from Texas Rangers. |
| 06/08/12 | St. Louis Cardinals released RHP Scott Linebrink. |
| 06/07/12 | St. Louis Cardinals placed LHP Jaime Garcia on the 15-day disabled list retroactive to June 6, 2012. Left shoulder strain. |
| 06/07/12 | St. Louis Cardinals recalled Fernando Salas from Memphis Redbirds. |
| 06/01/12 | St. Louis Cardinals recalled Sam Freeman from Memphis Redbirds. |
| 06/01/12 | St. Louis Cardinals placed 2B Skip Schumaker on the 15-day disabled list retroactive to May 31, 2012. right hamstring strain |
| 06/01/12 | St. Louis Cardinals activated 1B Allen Craig from the 15-day disabled list. |