Athletics Roster & Staff
Transactions
| Date | Transaction |
| 01/28/11 | Oakland Athletics sent LF Steve Tolleson outright to Sacramento River Cats. |
| 01/28/11 | Oakland Athletics invited non-roster 2B Steve Tolleson to spring training. |
| 01/24/11 | Oakland Athletics Traded RHP Clayton Mortensen to Colorado Rockies and Modesto Nuts Traded RHP Ethan Hollingsworth to Stockton Ports. |
| 01/24/11 | Oakland Athletics signed free agent 3B Andy LaRoche to a minor league contract and invited him to spring training. |
| 01/19/11 | Oakland Athletics signed free agent LHP Brian Fuentes. |
| 01/19/11 | Oakland Athletics designated Steve Tolleson for assignment. |
| 01/18/11 | Oakland Athletics signed free agent Grant Balfour. |
| 01/18/11 | Oakland Athletics designated Clayton Mortensen for assignment. |
| 01/18/11 | Chicago White Sox claimed RHP Philip Humber off waivers from Oakland Athletics. |
| 01/08/11 | Texas Rangers Traded RHP Guillermo Moscoso to Oakland Athletics and Burlington Bees Traded RHP Ryan Kelly to Hickory Crawdads. |
| 01/08/11 | Oakland Athletics designated Philip Humber for assignment. |