Padres Roster & Staff
Transactions
| Date | Transaction |
| 12/13/12 | Tampa Bay Rays traded LHP Chris Rearick to San Diego Padres for 2B Vince Belnome. |
| 12/13/12 | Tampa Bay Rays traded LHP Chris Rearick to San Diego Padres for 2B Vince Belnome. |
| 12/12/12 | San Diego Padres signed free agent SS Gregorio Petit to a minor league contract and invited him to spring training. |
| 12/12/12 | San Diego Padres signed free agent C Rene Rivera to a minor league contract and invited him to spring training. |
| 12/11/12 | San Diego Padres signed free agent LHP Matt Lachappa to a minor league contract. |
| 12/11/12 | San Diego Padres signed free agent RHP Sean O'Sullivan to a minor league contract and invited him to spring training. |
| 12/10/12 | San Diego Padres signed free agent LHP Juan Pablo Oramas to a minor league contract. |
| 12/06/12 | Texas Rangers traded RHP Wilfredo Boscan to San Diego Padres. |
| 12/03/12 | San Diego Padres signed free agent RHP Jason Marquis. |