| Date | Player | Position | Transaction |
|---|---|---|---|
| Apr 30 | Tyson Ross | SP/RP | Sent to Minors for Rehabilitation by San Diego |
| Apr 29 | James Darnell | 3B/LF | Sent to Minors for Rehabilitation by San Diego |
| Apr 24 | Thad Weber | RP | Sent to Minors by San Diego |
| Apr 24 | Logan Forsythe | 2B/3B/SS | Transferred to 60-Day DL by San Diego (Plantar fasciitis, right foot) |
| Apr 24 | Robbie Erlin | RP | Purchased From Minors by San Diego |
| Apr 23 | Carlos Quentin | LF | Reinstated From League Suspension by San Diego |
| Apr 20 | Thad Weber | RP | Called Up from Minors by San Diego |
| Apr 20 | Eddie Bonine | RP | Signed to a Minor League Contract by San Diego |
| Apr 17 | Chase Headley | 3B | Recalled From Minors Rehab by San Diego |
| Apr 16 | Cody Ransom | 3B/SS | Acquired Off Waivers from San Diego to Chi Cubs |
| Apr 14 | Thad Weber | RP | Sent to Minors by San Diego |
| Apr 14 | Kyle Blanks | LF/1B/RF | Called Up from Minors by San Diego |
| Apr 14 | Carlos Quentin | LF | Starting to Serve Suspension by San Diego |
| Apr 12 | Cody Ransom | 3B/SS | Designated for Assignment by San Diego |
| Apr 12 | Chase Headley | 3B | Sent to Minors for Rehabilitation by San Diego |
| Apr 12 | Carlos Quentin | LF | Suspension Announced By League by San Diego (eight games) |
| Apr 12 | Thad Weber | RP | Purchased From Minors by San Diego |
| Apr 9 | Brandon Allen | 1B/LF | Signed to a Minor League Contract by San Diego |