 |
Player | Position | Former Team | New Team | Transaction date | Notes | |
| 1. | Varvaro, Anthony | P | SEA | ATL | 1/13/11 | Claimed off waivers. | |
| 2. | Olivo, Miguel | C | SEA | CIN | 2/01/13 | Minor league contract | |
| 3. | Ray, Chris | RP | SEA | CLE | 1/12/12 | Minor league contract | |
| 4. | Alfonzo, Eliezer | C | SEA | COL | 1/26/11 | Minor league contract | |
| 5. | Sherrill, George | RP | SEA | KC | 12/07/12 | Minor league contract | |
| 6. | Bautista, Denny | RP | SF | SEA | 12/14/10 | Minor league contract | |
| 7. | Gerut, Jody | OF | SD | SEA | 1/20/11 | Minor league contract | |
| 8. | Gross, Gabe | OF | OAK | SEA | 2/04/11 | Minor league contract | |
| 9. | Haeger, Charlie | SP | LAD | SEA | 11/24/10 | Minor league contract | |
| 10. | Jacobs, Mike | 1B | ARI | SEA | 12/20/12 | Minor league contract | |
| 11. | Miller, Justin | RP | LAD | SEA | 11/17/10 | Minor league contract | |
| 12. | Paulino, Ronny | C | BAL | SEA | 1/25/13 | Minor league contract | |
| 13. | Seddon, Chris | RP | SEA | SEA | 11/23/10 | Minor league contract | |
| 14. | Smith, Chris | RP | MIL | SEA | 11/24/10 | Minor league contract | |
| 15. | Snell, Ian | SP | SEA | STL | 1/14/11 | Minor league contract | |
| 16. | Gimenez, Chris | C | SEA | TB | 2/17/12 | Minor league contract | |
| 17. | Millwood, Kevin | SP | SEA | --- | 2/03/13 | Announced retirement | |
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