Tacoma Rainiers Roster & Staff
SEA Transactions
| Date | Transaction |
| 06/04/25 | Everett AquaSox activated RHP Tyler Cleveland from the 7-day injured list. |
| 06/04/25 | Seattle Mariners recalled RHP Casey Legumina from Tacoma Rainiers. |
| 06/03/25 | 1B Dalton Davis assigned to ACL Mariners. |
| 06/03/25 | RHP Leon Hunter Jr. assigned to Arkansas Travelers from Tacoma Rainiers. |
| 06/03/25 | RHP Nick Fraze assigned to Arkansas Travelers from Tacoma Rainiers. |
| 06/03/25 | Everett AquaSox placed OF Jonny Farmelo on the 7-day injured list retroactive to June 1, 2025. |
| 06/03/25 | Tacoma Rainiers transferred RHP Michael Mariot to the Development List. |
| 06/03/25 | Tacoma Rainiers transferred C Jacob Nottingham 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 Leon Hunter Jr. assigned to Arkansas Travelers from Tacoma Rainiers. |
| 06/03/25 | RHP Nick Fraze assigned to Arkansas Travelers from Tacoma Rainiers. |
| 06/03/25 | Seattle Mariners signed free agent RHP Jesse Hahn to a minor league contract. |
| 06/02/25 | Arkansas Travelers released RHP Garrett Hill. |
| 06/02/25 | Arkansas Travelers released RHP Yorlin Calderon. |
| 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. |