Athletics Roster & Staff
Transactions
| Date | Transaction |
| 11/20/20 | Oakland Athletics selected the contract of RHP Miguel Romero from Las Vegas Aviators. |
| 11/20/20 | Oakland Athletics selected the contract of RF Greg Deichmann from Stockton Ports. |
| 11/20/20 | Oakland Athletics invited non-roster RHP Brian Schlitter to spring training. |
| 11/20/20 | Oakland Athletics signed free agent RHP Trey Supak to a minor league contract and invited him to spring training. |
| 11/20/20 | Oakland Athletics selected the contract of RHP Wandisson Charles from Midland RockHounds. |
| 11/17/20 | Oakland Athletics signed free agent 1B Frank Schwindel to a minor league contract and invited him to spring training. |
| 11/17/20 | Oakland Athletics signed free agent P Ben Bracewell. |
| 11/17/20 | Oakland Athletics signed free agent SS Pete Kozma. |
| 11/17/20 | Oakland Athletics signed free agent RHP Ben Bracewell to a minor league contract and invited him to spring training. |
| 11/17/20 | Oakland Athletics signed free agent RHP Cristian Alvarado to a minor league contract and invited him to spring training. |
| 11/17/20 | Oakland Athletics signed free agent SS Pete Kozma to a minor league contract and invited him to spring training. |
| 11/16/20 | Oakland Athletics signed free agent RHP Argenis Angulo to a minor league contract and invited him to spring training. |
| 11/16/20 | Oakland Athletics signed free agent P Argenis Angulo. |
| 11/16/20 | Oakland Athletics signed free agent P Montana DuRapau. |
| 11/16/20 | Oakland Athletics signed free agent RHP Montana DuRapau to a minor league contract and invited him to spring training. |
| 11/16/20 | Oakland Athletics signed free agent P Domingo Acevedo. |
| 11/16/20 | Oakland Athletics signed free agent P Matt Blackham. |
| 11/16/20 | Oakland Athletics signed free agent RHP Domingo Acevedo to a minor league contract and invited him to spring training. |
| 11/16/20 | Oakland Athletics signed free agent RHP Matt Blackham to a minor league contract and invited him to spring training. |
| 11/12/20 | Oakland Athletics signed free agent CF Jhonny Santos to a minor league contract. |
| 11/12/20 | Oakland Athletics signed free agent 2B Jacob Wilson. |
| 11/12/20 | Oakland Athletics signed free agent 3B Jacob Wilson to a minor league contract and invited him to spring training. |
| 11/05/20 | San Diego Padres traded CF Junior Perez to Oakland Athletics. PTBNL in Jorge Mateo trade, 6/29/20 |