Portland Sea Dogs Roster & Staff
Portland Transactions
| Date | Transaction |
| 06/07/26 | LHP Michael Sansone assigned to Worcester Red Sox from Portland Sea Dogs. |
| 06/06/26 | Portland Sea Dogs sent LHP Jeremy Wu-Yelland on a rehab assignment to FCL Red Sox. |
| 06/04/26 | 2B Tyler McDonough assigned to Worcester Red Sox from Portland Sea Dogs. |
| 06/02/26 | LHP Michael Sansone assigned to Portland Sea Dogs from Worcester Red Sox. |
| 06/02/26 | RHP Joe Vogatsky assigned to Greenville Drive from Portland Sea Dogs. |