Great Lakes Loons Roster & Staff
Great Lakes Transactions
| Date | Transaction |
| 05/09/26 | SS Jose D. Hernandez assigned to Great Lakes Loons from Ontario Tower Buzzers. |
| 05/08/26 | Great Lakes Loons placed SS Jordan Thompson on the 7-day injured list. |
| 05/08/26 | Great Lakes Loons placed SS Cameron Decker on the 7-day injured list. |
| 05/05/26 | Great Lakes Loons sent C Gio Cueto on a rehab assignment to ACL Dodgers. |
| 05/05/26 | LHP Matt Lanzendorfer assigned to Great Lakes Loons from Ontario Tower Buzzers. |
| 05/03/26 | Great Lakes Loons placed LHP Cody Morse on the 7-day injured list. |