Tacoma Rainiers Roster & Staff
Tacoma Transactions
| Date | Transaction |
| 06/09/25 | Seattle Mariners recalled RF Dominic Canzone from Tacoma Rainiers. |
| 06/09/25 | Seattle Mariners sent RHP Casey Lawrence outright to Tacoma Rainiers. |
| 06/07/25 | RHP Trevor Gott assigned to Tacoma Rainiers. |
| 06/04/25 | Seattle Mariners recalled RHP Casey Legumina from Tacoma Rainiers. |
| 06/03/25 | Tacoma Rainiers transferred C Jacob Nottingham to the Development List. |
| 06/03/25 | Tacoma Rainiers transferred RHP Michael Mariot to the Development List. |
| 06/03/25 | Tacoma Rainiers transferred OF Colin Davis to the Development List. |
| 06/03/25 | RHP Jesse Hahn assigned to Tacoma Rainiers. |
| 06/03/25 | RHP Nick Fraze assigned to Arkansas Travelers from Tacoma Rainiers. |
| 06/03/25 | RHP Leon Hunter Jr. assigned to Arkansas Travelers from Tacoma Rainiers. |
| 06/02/25 | LHP Joe Jacques assigned to Tacoma Rainiers. |
| 06/02/25 | Tacoma Rainiers activated LHP Joe Jacques. |
| 06/02/25 | Tacoma Rainiers released RHP Trevor Gott. |
| 06/01/25 | Tacoma Rainiers activated RHP Michael Mariot. |
| 06/01/25 | Tacoma Rainiers activated C Blake Hunt. |
| 06/01/25 | Seattle Mariners sent C Blake Hunt outright to Tacoma Rainiers. |