Tacoma Rainiers Roster & Staff
Tacoma Transactions
| Date | Transaction |
| 01/30/26 | C Brian O'Keefe assigned to Tacoma Rainiers. |
| 01/29/26 | LHP Jhonathan Díaz elected free agency. |
| 01/28/26 | Seattle Mariners sent LHP Jhonathan Díaz outright to Tacoma Rainiers. |
| 01/26/26 | 3B Will Wilson assigned to Tacoma Rainiers. |
| 01/25/26 | 2B Samad Taylor elected free agency. |
| 01/24/26 | C Jakson Reetz assigned to Tacoma Rainiers. |
| 01/22/26 | RHP Dane Dunning assigned to Tacoma Rainiers. |
| 01/22/26 | Seattle Mariners sent 2B Samad Taylor outright to Tacoma Rainiers. |
| 01/20/26 | 1B Patrick Wisdom assigned to Tacoma Rainiers. |
| 01/16/26 | RHP Gabe Mosser assigned to Tacoma Rainiers. |
| 01/12/26 | SS J.T. Arruda assigned to Tacoma Rainiers. |
| 01/08/26 | RHP Michael Rucker assigned to Tacoma Rainiers. |