 |
Player | Position | Former Team | New Team | Transaction date | Notes | |
| 1. | Everidge, Tommy | 1B | OAK | SEA | 1/15/10 | Claimed off waivers | |
| 2. | Garciaparra, Nomar | 1B | OAK | --- | --- | Announced retirement 3/10/10 | |
| 3. | Sogard, Eric | 2B | SD | OAK | 1/16/10 | Part of four-player trade | |
| 4. | Iwamura, Akinori | 3B | OAK | --- | 11/14/10 | Signed with Rakuten Eagles, Japanese Pacific League | |
| 5. | Rosales, Adam | 3B | CIN | OAK | 2/01/10 | Traded with Willy Taveras for Aaron Miles and player to be named | |
| 6. | Munson, Eric | C | OAK | --- | --- | Minor League free agent | |
| 7. | Gomes, Jonny | DH | OAK | BOS | 12/01/12 | Two-year contract | |
| 8. | Ramirez, Manny | DH | --- | OAK | 2/20/12 | Minor league contract | |
| 9. | Crisp, Coco | OF | OAK | OAK | 1/05/12 | Two years with a club option for 2014 | |
| 10. | Denorfia, Chris | OF | OAK | SD | 12/18/09 | Minor League contract | |
| 11. | Gross, Gabe | OF | OAK | SEA | 2/04/11 | Minor league contract | |
| 12. | Cameron, Kevin | RP | OAK | SF | 12/22/09 | Minor League contract | |
| 13. | Casilla, Santiago | RP | OAK | SF | 1/21/10 | Minor League contract | |
| 14. | Giese, Dan | RP | OAK | OAK | 1/27/10 | Minor league contract | |
| 15. | Jennings, Jason | RP | TEX | OAK | 2/28/10 | Minor league contract | |
| 16. | Marshall, Jay | RP | OAK | NYM | 1/07/10 | Claimed off waivers | |
| 17. | Colon, Bartolo | SP | OAK | OAK | 11/03/12 | One-year contract | |
| 18. | DiNardo, Lenny | SP | KC | OAK | 1/07/10 | Minor League contract | |
| 19. | Duchscherer, Justin | SP | OAK | BAL | 2/04/11 | One-year contract | |
| 20. | Harden, Rich | SP | OAK | MIN | 12/21/12 | Minor league contract | |
| 21. | Sheets, Ben | SP | MIL | OAK | 1/26/10 | One-year deal | |
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