Red Sox Roster & Staff
Transactions
| Date | Transaction |
| 07/29/25 | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| 07/29/25 | Boston Red Sox optioned RHP Richard Fitts to Worcester Red Sox. |
| 07/26/25 | Boston Red Sox signed free agent C Chadwick Tromp to a minor league contract. |
| 07/25/25 | Boston Red Sox placed 3B Marcelo Mayer on the 10-day injured list retroactive to July 24, 2025. Right wrist sprain. |
| 07/25/25 | Boston Red Sox recalled 2B David Hamilton from Worcester Red Sox. |
| 07/24/25 | Boston Red Sox signed free agent C Caleb Berry to a minor league contract. |
| 07/24/25 | Boston Red Sox sent RHP Zack Kelly on a rehab assignment to Greenville Drive. |
| 07/24/25 | Boston Red Sox signed SS Ty Hodge. |
| 07/24/25 | Boston Red Sox sent RHP Zack Kelly on a rehab assignment to Greenville Drive. |
| 07/22/25 | Boston Red Sox signed LHP Dylan Brown. |
| 07/22/25 | Boston Red Sox signed SS Mason White. |
| 07/22/25 | Boston Red Sox signed LHP Myles Patton. |
| 07/22/25 | Boston Red Sox signed SS Henry Godbout. |
| 07/20/25 | Boston Red Sox signed LHP Jason Gilman. |
| 07/20/25 | Boston Red Sox signed RHP Barrett Morgan. |
| 07/20/25 | Boston Red Sox signed 3B Jack Winnay. |
| 07/20/25 | Boston Red Sox signed SS Maximus Martin. |
| 07/20/25 | Boston Red Sox signed free agent OF Andrews Opata to a minor league contract. |
| 07/20/25 | Boston Red Sox signed RHP Carter Rasmussen. |
| 07/20/25 | Boston Red Sox signed RHP Kyson Witherspoon. |
| 07/20/25 | Boston Red Sox signed RHP Patrick Galle. |
| 07/20/25 | Boston Red Sox signed OF Skylar King. |
| 07/20/25 | Boston Red Sox signed RHP Anthony Eyanson. |
| 07/20/25 | Boston Red Sox signed RHP Jacob Mayers. |
| 07/20/25 | Boston Red Sox signed OF Fabian Bonilla. |
| 07/20/25 | Boston Red Sox signed RHP Leighton Finley. |
| 07/20/25 | Boston Red Sox signed RHP Marcus Phillips. |
| 07/20/25 | Boston Red Sox signed LHP Cade Fisher. |
| 07/20/25 | Boston Red Sox signed LHP Ethan Walker. |
| 07/20/25 | Boston Red Sox signed RHP Christian Foutch. |
| 07/18/25 | Boston Red Sox signed free agent C Ronaldo Hernández to a minor league contract. |
| 07/12/25 | Boston Red Sox placed RHP Hunter Dobbins on the 15-day injured list. Right ACL tear. |
| 07/12/25 | Boston Red Sox traded C Blake Sabol to Chicago White Sox for cash. |
| 07/12/25 | Boston Red Sox recalled RHP Richard Fitts from Worcester Red Sox. |
| 07/11/25 | Boston Red Sox activated 3B Alex Bregman from the 10-day injured list. |
| 07/11/25 | Boston Red Sox activated RHP Hunter Dobbins from the 15-day injured list. |
| 07/11/25 | Boston Red Sox optioned 2B David Hamilton to Worcester Red Sox. |
| 07/11/25 | Boston Red Sox optioned RHP Isaiah Campbell to Worcester Red Sox. |
| 07/09/25 | Boston Red Sox sent RHP Tanner Houck on a rehab assignment to Worcester Red Sox. |
| 07/09/25 | Boston Red Sox activated LF Masataka Yoshida from the 60-day injured list. |
| 07/09/25 | Boston Red Sox placed RHP Nick Burdi on the 60-day injured list. Right foot contusion. |
| 07/09/25 | Boston Red Sox optioned 3B Nate Eaton to Worcester Red Sox. |
| 07/08/25 | Boston Red Sox transferred RHP Liam Hendriks from the 15-day injured list to the 60-day injured list. Right hip inflammation. |
| 07/08/25 | Boston Red Sox optioned RHP Richard Fitts to Worcester Red Sox. |
| 07/08/25 | Boston Red Sox selected the contract of RHP Isaiah Campbell from Worcester Red Sox. |
| 07/05/25 | Boston Red Sox sent RHP Hunter Dobbins on a rehab assignment to Portland Sea Dogs. |
| 07/05/25 | Boston Red Sox sent RHP Hunter Dobbins on a rehab assignment to Portland Sea Dogs. |
| 07/05/25 | Boston Red Sox signed free agent RHP Alexander Heredia to a minor league contract. |
| 07/04/25 | Boston Red Sox sent RHP Tanner Houck on a rehab assignment to Portland Sea Dogs. |
| 07/04/25 | Boston Red Sox sent LF Masataka Yoshida on a rehab assignment to Portland Sea Dogs. |
| 07/04/25 | Boston Red Sox sent RHP Tanner Houck on a rehab assignment to Portland Sea Dogs. |
| 07/03/25 | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| 07/02/25 | Boston Red Sox signed free agent LHP Rony Calderon to a minor league contract. |
| 07/02/25 | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| 07/01/25 | Boston Red Sox sent LF Masataka Yoshida on a rehab assignment to Worcester Red Sox. |