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BOS · 2026 transactions
Data through 2026-10-03
| Date | Player | Type | Detail |
|---|---|---|---|
| Sep 27 | Tyron Guerrero | Status Change | Boston Red Sox placed RHP Tyron Guerrero on the 15-day injured list retroactive to September 24, 2026. Right shoulder strain. |
| Sep 27 | Mickey Gasper | Status Change | Boston Red Sox placed DH Mickey Gasper on the 10-day injured list retroactive to September 26, 2026. Right biceps strain. |
| Sep 27 | Tanner Houck | Status Change | Boston Red Sox activated RHP Tanner Houck from the 60-day injured list. |
| Sep 27 | Eli White | Status Change | Boston Red Sox transferred CF Eli White from the 10-day injured list to the 60-day injured list. Right foot ligament injury. |
| Sep 27 | Jedixson Paez | Optioned | Boston Red Sox optioned RHP Jedixson Paez to Worcester Red Sox. |
| Sep 27 | Wyatt Olds | Recalled | Boston Red Sox recalled RHP Wyatt Olds from Worcester Red Sox. |
| Sep 27 | Nate Eaton | Recalled | Boston Red Sox recalled LF Nate Eaton from Worcester Red Sox. |
| Sep 25 | Raymond Burgos | Optioned | Boston Red Sox optioned LHP Raymond Burgos to Worcester Red Sox. |
| Sep 25 | Jedixson Paez | Recalled | Boston Red Sox recalled RHP Jedixson Paez from Worcester Red Sox. |
| Sep 23 | Nate Eaton | Optioned | Boston Red Sox optioned LF Nate Eaton to Worcester Red Sox. |
| Sep 23 | Ceddanne Rafaela | Status Change | Boston Red Sox activated CF Ceddanne Rafaela from the 10-day injured list. |
| Sep 20 | Tyron Guerrero | Status Change | Boston Red Sox placed RHP Tyron Guerrero on the 15-day injured list. Right shoulder strain. |
| Sep 20 | Wyatt Olds | Optioned | Boston Red Sox optioned RHP Wyatt Olds to Worcester Red Sox. |
| Sep 20 | Tyron Guerrero | Status Change | Boston Red Sox activated RHP Tyron Guerrero from the 15-day injured list. |
| Sep 17 | Johan Oviedo | Assigned | Boston Red Sox sent RHP Johan Oviedo on a rehab assignment to Worcester Red Sox. |
| Sep 17 | Johan Oviedo | Assigned | Boston Red Sox sent RHP Johan Oviedo on a rehab assignment to Worcester Red Sox. |
| Sep 16 | Raymond Burgos | Status Change | Boston Red Sox activated LHP Raymond Burgos. |
| Sep 16 | Jovani Morán | Number Change | LHP Jovani Morán changed number to 47. |
| Sep 16 | Raymond Burgos | Number Change | LHP Raymond Burgos changed number to 79. |
| Sep 16 | Garrett Whitlock | Number Change | RHP Garrett Whitlock changed number to 22. |
| Sep 15 | Tanner Houck | Assigned | Boston Red Sox sent RHP Tanner Houck on a rehab assignment to Worcester Red Sox. |
| Sep 15 | Garrett Whitlock | Number Change | RHP Garrett Whitlock changed number to 21. |
| Sep 15 | Jovani Morán | Number Change | LHP Jovani Morán changed number to 21. |
| Sep 15 | Raymond Burgos | Number Change | LHP Raymond Burgos changed number to 21. |
| Sep 15 | Tanner Houck | Assigned | Boston Red Sox sent RHP Tanner Houck on a rehab assignment to Worcester Red Sox. |
| Sep 15 | Tanner Houck | Assigned | Boston Red Sox sent RHP Tanner Houck on a rehab assignment to Worcester Red Sox. |
| Sep 13 | Willson Contreras | Status Change | Boston Red Sox activated 1B Willson Contreras from the 10-day injured list. |
| Sep 13 | Anthony Seigler | Status Change | Boston Red Sox placed 2B Anthony Seigler on the 10-day injured list. Right wrist inflammation. |
| Sep 11 | Willson Contreras | Assigned | Boston Red Sox sent 1B Willson Contreras on a rehab assignment to Portland Sea Dogs. |
| Sep 11 | Eli White | Status Change | Boston Red Sox placed CF Eli White on the 10-day injured list retroactive to September 9, 2026. Right foot ligament injury. |
| Sep 11 | Anthony Seigler | Recalled | Boston Red Sox recalled 2B Anthony Seigler from Worcester Red Sox. |
| Sep 8 | Tanner Houck | Assigned | Boston Red Sox sent RHP Tanner Houck on a rehab assignment to Portland Sea Dogs. |
| Sep 6 | Ceddanne Rafaela | Status Change | Boston Red Sox placed CF Ceddanne Rafaela on the 10-day injured list retroactive to September 3, 2026. Right quadriceps strain. |
| Sep 6 | Nate Eaton | Recalled | Boston Red Sox recalled OF Nate Eaton from Worcester Red Sox. |
| Sep 3 | Brett Harris | Claimed Off Waivers | San Francisco Giants claimed 3B Brett Harris off waivers from Boston Red Sox. |
| Sep 2 | Jedixson Paez | Optioned | Boston Red Sox optioned RHP Jedixson Paez to Worcester Red Sox. |
| Sep 2 | Raymond Burgos | Recalled | Boston Red Sox recalled LHP Raymond Burgos from Worcester Red Sox. |
| Sep 1 | Tyron Guerrero | Status Change | Boston Red Sox placed RHP Tyron Guerrero on the 15-day injured list. Right shoulder inflammation. |
| Sep 1 | Wyatt Olds | Recalled | Boston Red Sox recalled RHP Wyatt Olds from Worcester Red Sox. |
| Sep 1 | Jedixson Paez | Status Change | Boston Red Sox activated RHP Jedixson Paez. |
| Sep 1 | Brett Harris | Designated for Assignment | Boston Red Sox designated 3B Brett Harris for assignment. |
| Sep 1 | Eduardo Rivera | Status Change | Boston Red Sox placed LHP Eduardo Rivera on the 60-day injured list. Lumbar strain. |
| Sep 1 | Eduardo Rivera | Recalled | Boston Red Sox recalled LHP Eduardo Rivera from Worcester Red Sox. |
| Sep 1 | Isiah Kiner-Falefa | Status Change | Boston Red Sox activated 2B Isiah Kiner-Falefa from the 60-day injured list. |
| Sep 1 | Jedixson Paez | Selected | Boston Red Sox selected the contract of RHP Jedixson Paez from Worcester Red Sox. |
| Aug 31 | Mickey Gasper | Recalled | Boston Red Sox recalled DH Mickey Gasper from Worcester Red Sox. |
| Aug 31 | Willson Contreras | Status Change | Boston Red Sox placed 1B Willson Contreras on the 10-day injured list. Left hamstring strain. |
| Aug 30 | Anthony Seigler | Optioned | Boston Red Sox optioned 2B Anthony Seigler to Worcester Red Sox. |
| Aug 30 | Mickey Gasper | Optioned | Boston Red Sox optioned DH Mickey Gasper to Worcester Red Sox. |
| Aug 30 | Trevor Story | Status Change | Boston Red Sox activated SS Trevor Story from the 60-day injured list. |
| Aug 30 | Roman Anthony | Status Change | Boston Red Sox activated LF Roman Anthony from the 60-day injured list. |
| Aug 30 | Raymond Burgos | Optioned | Boston Red Sox optioned LHP Raymond Burgos to Worcester Red Sox. |
| Aug 29 | Wyatt Olds | Optioned | Boston Red Sox optioned RHP Wyatt Olds to Worcester Red Sox. |
| Aug 29 | Raymond Burgos | Recalled | Boston Red Sox recalled LHP Raymond Burgos from Worcester Red Sox. |
| Aug 29 | Garrett Whitlock | Status Change | Boston Red Sox activated RHP Garrett Whitlock from the 15-day injured list. |
| Aug 28 | Tomás Nido | Signed as Free Agent | Boston Red Sox signed free agent C Tomás Nido to a minor league contract. |
| Aug 25 | Roman Anthony | Assigned | Boston Red Sox sent LF Roman Anthony on a rehab assignment to Worcester Red Sox. |
| Aug 19 | Isiah Kiner-Falefa | Assigned | Boston Red Sox sent 2B Isiah Kiner-Falefa on a rehab assignment to Worcester Red Sox. |
| Aug 18 | Roman Anthony | Assigned | Boston Red Sox sent LF Roman Anthony on a rehab assignment to Portland Sea Dogs. |
| Aug 17 | Eduardo Rivera | Status Change | Boston Red Sox placed LHP Eduardo Rivera on the restricted list. |
| Aug 17 | Raymond Burgos | Optioned | Boston Red Sox optioned LHP Raymond Burgos to Worcester Red Sox. |
| Aug 17 | Wyatt Olds | Selected | Boston Red Sox selected the contract of RHP Wyatt Olds from Worcester Red Sox. |
| Aug 16 | Trevor Story | Assigned | Boston Red Sox sent SS Trevor Story on a rehab assignment to Worcester Red Sox. |
| Aug 16 | Trevor Story | Assigned | Boston Red Sox sent SS Trevor Story on a rehab assignment to Worcester Red Sox. |
| Aug 16 | Masataka Yoshida | Status Change | Boston Red Sox placed DH Masataka Yoshida on the 10-day injured list. Left hamstring strain. |
| Aug 16 | Justin Slaten | Status Change | Boston Red Sox placed RHP Justin Slaten on the 15-day injured list retroactive to August 13, 2026. Right elbow inflammation. |
| Aug 16 | Raymond Burgos | Recalled | Boston Red Sox recalled LHP Raymond Burgos from Worcester Red Sox. |
| Aug 16 | Mickey Gasper | Recalled | Boston Red Sox recalled C Mickey Gasper from Worcester Red Sox. |
| Aug 14 | Seth Martinez | Outrighted | Boston Red Sox sent RHP Seth Martinez outright to Worcester Red Sox. |
| Aug 14 | Jake Rogers | Claimed Off Waivers | Chicago White Sox claimed C Jake Rogers off waivers from Boston Red Sox. |
| Aug 13 | Garrett Whitlock | Status Change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list retroactive to August 10, 2026. Right elbow inflammation. |
| Aug 13 | Greg Weissert | Recalled | Boston Red Sox recalled RHP Greg Weissert from Worcester Red Sox. |
| Aug 12 | Morgan McSweeney | Signed as Free Agent | Boston Red Sox signed free agent RHP Morgan McSweeney to a minor league contract. |
| Aug 12 | Alec Gamboa | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| Aug 12 | Seth Martinez | Designated for Assignment | Boston Red Sox designated RHP Seth Martinez for assignment. |
| Aug 12 | Harold Rivas | Trade | Boston Red Sox traded CF Harold Rivas to Baltimore Orioles. Player to be named later from the 8/3 Adley Rutschman trade. |
| Aug 11 | Isiah Kiner-Falefa | Status Change | Boston Red Sox transferred 2B Isiah Kiner-Falefa from the 10-day injured list to the 60-day injured list. |
| Aug 11 | Jake Rogers | Designated for Assignment | Boston Red Sox designated C Jake Rogers for assignment. |
| Aug 11 | Adley Rutschman | Status Change | Boston Red Sox activated C Adley Rutschman from the 10-day injured list. |
| Aug 11 | Aaron Nixon | Signed as Free Agent | Boston Red Sox signed free agent RHP Aaron Nixon to a minor league contract. |
| Aug 9 | Raymond Burgos | Optioned | Boston Red Sox optioned LHP Raymond Burgos to Worcester Red Sox. |
| Aug 9 | Seth Martinez | Selected | Boston Red Sox selected the contract of RHP Seth Martinez from Worcester Red Sox. |
| Aug 8 | Adley Rutschman | Assigned | Boston Red Sox sent C Adley Rutschman on a rehab assignment to Worcester Red Sox. |
| Aug 7 | Ryan Watson | Claimed Off Waivers | Los Angeles Angels claimed RHP Ryan Watson off waivers from Boston Red Sox. |
| Aug 7 | John Brebbia | Signed as Free Agent | Boston Red Sox signed free agent RHP John Brebbia to a minor league contract. |
| Aug 7 | Raymond Burgos | Selected | Boston Red Sox selected the contract of LHP Raymond Burgos from Worcester Red Sox. |
| Aug 7 | Greg Weissert | Optioned | Boston Red Sox optioned RHP Greg Weissert to Worcester Red Sox. |
| Aug 6 | Joe La Sorsa | Released | Boston Red Sox released LHP Joe La Sorsa. |
| Aug 5 | Cam Padgett | Signed as Free Agent | Boston Red Sox signed free agent RHP Cam Padgett to a minor league contract. |
| Aug 4 | Ryan Watson | Designated for Assignment | Boston Red Sox designated RHP Ryan Watson for assignment. |
| Aug 4 | Romy Gonzalez | Optioned | Boston Red Sox optioned DH Romy Gonzalez to Worcester Red Sox. |
| Aug 4 | Eli White | Status Change | Boston Red Sox activated RF Eli White. |
| Aug 4 | Jake Rogers | Status Change | Boston Red Sox activated C Jake Rogers. |
| Aug 4 | Erik Miller | Status Change | Boston Red Sox activated LHP Erik Miller. |
| Aug 3 | Adley Rutschman | Status Change | Boston Red Sox placed C Adley Rutschman on the 10-day injured list. Left wrist inflammation. |
| Aug 3 | Carlos Gutierrez | Trade | Boston Red Sox traded 2B Marcelo Mayer to San Francisco Giants for LHP Erik Miller and CF Carlos Gutierrez. |
| Aug 3 | Eli White | Trade | Atlanta Braves traded RF Eli White to Boston Red Sox for RHP Tyler Uberstine. |
| Aug 3 | Jake Rogers | Trade | Baltimore Orioles traded C Adley Rutschman, C Jake Rogers and cash to Boston Red Sox for RHP Kyson Witherspoon, CF Enddy Azocar, C Carlos Narváez, RHP Anthony Eyanson and Player To Be Named Later. |
| Aug 1 | Jojo Ingrassia | Trade | Boston Red Sox traded LHP Jojo Ingrassia to Detroit Tigers. |
| Jul 29 | Nick Sogard | Status Change | Boston Red Sox activated 2B Nick Sogard. |
| Jul 29 | Nick Sogard | Recalled | Boston Red Sox recalled 3B Nick Sogard from Worcester Red Sox. |
| Jul 29 | Curtis Mead | Status Change | Boston Red Sox placed 3B Curtis Mead on the 10-day injured list retroactive to July 28, 2026. Left wrist tracture. |
| Jul 27 | Curtis Mead | Status Change | Boston Red Sox activated 3B Curtis Mead. |
| Jul 27 | Tsung-Che Cheng | Optioned | Boston Red Sox optioned SS Tsung-Che Cheng to Worcester Red Sox. |
| Jul 26 | Ranger Suarez | Status Change | Boston Red Sox activated LHP Ranger Suarez from the 15-day injured list. |
| Jul 26 | Alec Gamboa | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| Jul 26 | Connelly Early | Trade | Boston Red Sox traded LHP Connelly Early to Washington Nationals for 3B Curtis Mead. |
| Jul 23 | Eduardo Rivera | Optioned | Boston Red Sox optioned LHP Eduardo Rivera to Worcester Red Sox. |
| Jul 22 | Jorhan Castro | Signed as Free Agent | Boston Red Sox signed free agent C Jorhan Castro to a minor league contract. |
| Jul 22 | Alec Gamboa | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| Jul 21 | Zack Kelly | Status Change | Boston Red Sox placed RHP Zack Kelly on the 60-day injured list. Right elbow inflammation. |
| Jul 21 | Zack Kelly | Recalled | Boston Red Sox recalled RHP Zack Kelly from Worcester Red Sox. |
| Jul 18 | Aiden VanDeHatert | Signed | Boston Red Sox signed LHP Aiden VanDeHatert. |
| Jul 18 | Danny Coulombe | Released | Boston Red Sox released LHP Danny Coulombe. |
| Jul 18 | Alec Gamboa | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| Jul 17 | Willson Contreras | Status Change | Boston Red Sox activated 1B Willson Contreras. |
| Jul 17 | Luis Calderon | Signed | Boston Red Sox signed RHP Luis Calderon. |
| Jul 17 | Alex Kranzler | Signed | Boston Red Sox signed RHP Alex Kranzler. |
| Jul 17 | Colton Coates | Signed | Boston Red Sox signed SS Colton Coates. |
| Jul 17 | Jase Evangelista | Signed | Boston Red Sox signed RHP Jase Evangelista. |
| Jul 17 | Mason Lei | Signed | Boston Red Sox signed RHP Mason Lei. |
| Jul 17 | Jacob Webster | Signed | Boston Red Sox signed SS Jacob Webster. |
| Jul 17 | Wills Maginnis | Signed | Boston Red Sox signed SS Wills Maginnis. |
| Jul 17 | Kaleb LaFavor | Signed | Boston Red Sox signed RHP Kaleb LaFavor. |
| Jul 17 | Martin Shelar | Signed | Boston Red Sox signed OF Martin Shelar. |
| Jul 17 | Josh Volmerding | Signed | Boston Red Sox signed LHP Josh Volmerding. |
| Jul 17 | Kide Adetuyi | Signed | Boston Red Sox signed LHP Kide Adetuyi. |
| Jul 17 | Brett Lanman | Signed | Boston Red Sox signed LHP Brett Lanman. |
| Jul 17 | Lucas Davenport | Signed | Boston Red Sox signed RHP Lucas Davenport. |
| Jul 17 | Jace Mataczynski | Signed | Boston Red Sox signed SS Jace Mataczynski. |
| Jul 17 | Owen Hull | Signed | Boston Red Sox signed OF Owen Hull. |
| Jul 17 | Carson Revay | Signed as Free Agent | Boston Red Sox signed free agent LHP Carson Revay to a minor league contract. |
| Jul 17 | Jake Schaffner | Signed | Boston Red Sox signed SS Jake Schaffner. |
| Jul 17 | Jahmai Jones | Status Change | Boston Red Sox activated OF Jahmai Jones. |
| Jul 17 | Jahmai Jones | Status Change | Boston Red Sox activated OF Jahmai Jones. |
| Jul 17 | Alec Gamboa | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| Jul 14 | Jahmai Jones | Status Change | OF Jahmai Jones roster status changed by Boston Red Sox. |
| Jul 14 | Nate Eaton | Optioned | Boston Red Sox optioned OF Nate Eaton to Worcester Red Sox. |
| Jul 14 | — | Trade | Detroit Tigers traded OF Jahmai Jones to Boston Red Sox for Player To Be Named Later. |
| Jul 13 | Tommy Kahnle | Signed as Free Agent | Boston Red Sox signed free agent RHP Tommy Kahnle to a minor league contract. |
| Jul 12 | Nick Sogard | Optioned | Boston Red Sox optioned 3B Nick Sogard to Worcester Red Sox. |
| Jul 12 | Nick Sogard | Status Change | Boston Red Sox activated 3B Nick Sogard from the 10-day injured list. |
| Jul 12 | Danny Coulombe | Designated for Assignment | Boston Red Sox designated LHP Danny Coulombe for assignment. |
| Jul 12 | Brayan Bello | Recalled | Boston Red Sox recalled RHP Brayan Bello from Worcester Red Sox. |
| Jul 11 | Jack Anderson | Claimed Off Waivers | Minnesota Twins claimed RHP Jack Anderson off waivers from Boston Red Sox. |
| Jul 11 | Brett Harris | Optioned | Boston Red Sox optioned 3B Brett Harris to Worcester Red Sox. |
| Jul 11 | Eduardo Rivera | Recalled | Boston Red Sox recalled LHP Eduardo Rivera from Worcester Red Sox. |
| Jul 9 | Willson Contreras | Suspension | 1B Willson Contreras suspended. |
| Jul 9 | Ranger Suarez | Status Change | Boston Red Sox placed LHP Ranger Suarez on the 15-day injured list retroactive to July 6, 2026. Left groin strain. |
| Jul 9 | Brett Harris | Recalled | Boston Red Sox recalled 3B Brett Harris from Worcester Red Sox. |
| Jul 9 | Nate Eaton | Status Change | Boston Red Sox activated OF Nate Eaton. |
| Jul 7 | Nick Sogard | Assigned | Boston Red Sox sent 3B Nick Sogard on a rehab assignment to Worcester Red Sox. |
| Jul 7 | Nate Eaton | Status Change | OF Nate Eaton roster status changed by Boston Red Sox. |
| Jul 7 | Nick Sogard | Assigned | Boston Red Sox sent 3B Nick Sogard on a rehab assignment to Worcester Red Sox. |
| Jul 6 | Ranger Suarez | Status Change | Boston Red Sox placed LHP Ranger Suarez on the 15-day injured list. Left groin strain. |
| Jul 6 | Alec Gamboa | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| Jul 6 | Jack Anderson | Designated for Assignment | Boston Red Sox designated RHP Jack Anderson for assignment. |
| Jul 6 | Patrick Sandoval | Status Change | Boston Red Sox activated LHP Patrick Sandoval from the 60-day injured list. |
| Jul 4 | Patrick Sandoval | Assigned | Boston Red Sox sent LHP Patrick Sandoval on a rehab assignment to Portland Sea Dogs. |
| Jul 3 | Tommy Kahnle | Outrighted | Boston Red Sox sent RHP Tommy Kahnle outright to Worcester Red Sox. |
| Jul 2 | Nick Sogard | Assigned | Boston Red Sox sent 3B Nick Sogard on a rehab assignment to Portland Sea Dogs. |
| Jul 2 | Sam McWilliams | Signed as Free Agent | Boston Red Sox signed free agent RHP Sam McWilliams to a minor league contract. |
| Jul 2 | Nick Sogard | Assigned | Boston Red Sox sent 3B Nick Sogard on a rehab assignment to Portland Sea Dogs. |
| Jul 1 | Connelly Early | Status Change | Boston Red Sox placed LHP Connelly Early on the 15-day injured list. Left elbow inflammation. |
| Jul 1 | Jovani Morán | Status Change | Boston Red Sox activated LHP Jovani Morán from the 15-day injured list. |
| Jul 1 | Alec Gamboa | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| Jul 1 | Tommy Kahnle | Designated for Assignment | Boston Red Sox designated RHP Tommy Kahnle for assignment. |
| Jul 1 | Ben Hansen | Trade | Athletics traded 3B Brett Harris to Boston Red Sox for RHP Ben Hansen. |
| Jun 28 | Romy Gonzalez | Status Change | Boston Red Sox activated DH Romy Gonzalez from the 60-day injured list. |
| Jun 28 | Roman Anthony | Status Change | Boston Red Sox transferred LF Roman Anthony from the 10-day injured list to the 60-day injured list. |
| Jun 28 | Mickey Gasper | Optioned | Boston Red Sox optioned C Mickey Gasper to Worcester Red Sox. |
| Jun 28 | Romy Gonzalez | Status Change | Boston Red Sox activated 1B Romy Gonzalez from the 60-day injured list. |
| Jun 26 | Marcelo Mayer | Status Change | Boston Red Sox placed 2B Marcelo Mayer on the 10-day injured list. Bone stress reaction to the left ulna. |
| Jun 26 | Tsung-Che Cheng | Recalled | Boston Red Sox recalled SS Tsung-Che Cheng from Worcester Red Sox. |
| Jun 25 | Jovani Morán | Assigned | Boston Red Sox sent LHP Jovani Morán on a rehab assignment to Worcester Red Sox. |
| Jun 23 | Andrew Knizner | Signed as Free Agent | Boston Red Sox signed free agent C Andrew Knizner to a minor league contract. |
| Jun 23 | Romy Gonzalez | Assigned | Boston Red Sox sent 1B Romy Gonzalez on a rehab assignment to Worcester Red Sox. |
| Jun 23 | Patrick Sandoval | Assigned | Boston Red Sox sent LHP Patrick Sandoval on a rehab assignment to Worcester Red Sox. |
| Jun 20 | Pablo Serrano | Signed as Free Agent | Boston Red Sox signed free agent RHP Pablo Serrano to a minor league contract. |
| Jun 20 | Isiah Kiner-Falefa | Status Change | Boston Red Sox placed 2B Isiah Kiner-Falefa on the 10-day injured list retroactive to June 19, 2026. Left forearm inflammation. |
| Jun 20 | Anthony Seigler | Recalled | Boston Red Sox recalled 2B Anthony Seigler from Worcester Red Sox. |
| Jun 17 | Patrick Sandoval | Assigned | Boston Red Sox sent LHP Patrick Sandoval on a rehab assignment to Portland Sea Dogs. |
| Jun 17 | Patrick Sandoval | Assigned | Boston Red Sox sent LHP Patrick Sandoval on a rehab assignment to Portland Sea Dogs. |
| Jun 16 | Romy Gonzalez | Assigned | Boston Red Sox sent 1B Romy Gonzalez on a rehab assignment to Portland Sea Dogs. |
| Jun 16 | Romy Gonzalez | Assigned | Boston Red Sox sent 1B Romy Gonzalez on a rehab assignment to Portland Sea Dogs. |
| Jun 10 | Jake Bennett | Recalled | Boston Red Sox recalled LHP Jake Bennett from Worcester Red Sox. |
| Jun 10 | Alec Gamboa | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| Jun 9 | Garrett Whitlock | Status Change | Boston Red Sox activated RHP Garrett Whitlock from the 15-day injured list. |
| Jun 9 | Anthony Seigler | Optioned | Boston Red Sox optioned 2B Anthony Seigler to Worcester Red Sox. |
| Jun 8 | Tyler Davis | Acquired | Boston Red Sox acquired LHP Tyler Davis from the Washington Wild Things of the Frontier League. |
| Jun 8 | Joe La Sorsa | Optioned | Boston Red Sox optioned LHP Joe La Sorsa to Worcester Red Sox. |
| Jun 8 | Nate Eaton | Recalled | Boston Red Sox recalled OF Nate Eaton from Worcester Red Sox. |
| Jun 6 | Alec Gamboa | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| Jun 6 | Jovani Morán | Status Change | Boston Red Sox placed LHP Jovani Morán on the 15-day injured list retroactive to June 5, 2026. Left elbow inflammation. |
| Jun 6 | Garrett Whitlock | Assigned | Boston Red Sox sent RHP Garrett Whitlock on a rehab assignment to Worcester Red Sox. |
| Jun 5 | Patrick Sandoval | Assigned | Boston Red Sox sent LHP Patrick Sandoval on a rehab assignment to Worcester Red Sox. |
| Jun 5 | Garrett Crochet | Status Change | Boston Red Sox transferred LHP Garrett Crochet from the 15-day injured list to the 60-day injured list. Left shoulder inflammation. |
| Jun 5 | Brayan Bello | Optioned | Boston Red Sox optioned RHP Brayan Bello to Worcester Red Sox. |
| Jun 5 | Joe La Sorsa | Selected | Boston Red Sox selected the contract of LHP Joe La Sorsa from Worcester Red Sox. |
| Jun 5 | Patrick Sandoval | Assigned | Boston Red Sox sent LHP Patrick Sandoval on a rehab assignment to Worcester Red Sox. |
| Jun 4 | Joe La Sorsa | Trade | Pittsburgh Pirates traded LHP Joe La Sorsa to Boston Red Sox. |
| Jun 4 | Trevor Story | Status Change | Boston Red Sox transferred SS Trevor Story from the 10-day injured list to the 60-day injured list. Sports hernia. |
| Jun 4 | Tyler Samaniego | Optioned | Boston Red Sox optioned LHP Tyler Samaniego to Worcester Red Sox. |
| Jun 4 | Tommy Kahnle | Selected | Boston Red Sox selected the contract of RHP Tommy Kahnle from Worcester Red Sox. |
| Jun 3 | Victor Aracena | Signed as Free Agent | Boston Red Sox signed free agent LHP Victor Aracena to a minor league contract. |
| Jun 3 | Nick Sogard | Status Change | Boston Red Sox placed 3B Nick Sogard on the 10-day injured list retroactive to May 31, 2026. Right oblique strain. |
| Jun 3 | Anthony Seigler | Recalled | Boston Red Sox recalled 2B Anthony Seigler from Worcester Red Sox. |
| May 28 | Garrett Whitlock | Status Change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list retroactive to May 25, 2026. Left knee inflammation. |
| May 28 | Tyler Samaniego | Recalled | Boston Red Sox recalled LHP Tyler Samaniego from Worcester Red Sox. |
| May 24 | Danny Coulombe | Status Change | Boston Red Sox activated LHP Danny Coulombe from the 15-day injured list. |
| May 24 | Tyler Samaniego | Optioned | Boston Red Sox optioned LHP Tyler Samaniego to Worcester Red Sox. |
| May 22 | Kutter Crawford | Status Change | Boston Red Sox placed RHP Kutter Crawford on the 60-day injured list. Right wrist surgery. |
| May 22 | Zack Kelly | Optioned | Boston Red Sox optioned RHP Zack Kelly to Worcester Red Sox. |
| May 22 | Tyron Guerrero | Selected | Boston Red Sox selected the contract of RHP Tayron Guerrero from Worcester Red Sox. |
| May 19 | Danny Coulombe | Assigned | Boston Red Sox sent LHP Danny Coulombe on a rehab assignment to Worcester Red Sox. |
| May 16 | Trevor Story | Status Change | Boston Red Sox placed SS Trevor Story on the 10-day injured list retroactive to May 15, 2026. Sports hernia. |
| May 16 | Nick Sogard | Recalled | Boston Red Sox recalled 1B Nick Sogard from Worcester Red Sox. |
| May 15 | Danny Coulombe | Assigned | Boston Red Sox sent LHP Danny Coulombe on a rehab assignment to Portland Sea Dogs. |
| May 9 | Juan Verdus | Signed as Free Agent | Boston Red Sox signed free agent RHP Juan Verdus to a minor league contract. |
| May 9 | Leonel Figuera | Signed as Free Agent | Boston Red Sox signed free agent RHP Leonel Figuera to a minor league contract. |
| May 9 | Justin Slaten | Status Change | Boston Red Sox activated RHP Justin Slaten from the 15-day injured list. |
| May 9 | Jack Anderson | Optioned | Boston Red Sox optioned RHP Jack Anderson to Worcester Red Sox. |
| May 8 | Jake Bennett | Optioned | Boston Red Sox optioned LHP Jake Bennett to Worcester Red Sox. |
| May 8 | Jack Anderson | Recalled | Boston Red Sox recalled RHP Jack Anderson from Worcester Red Sox. |
| May 7 | Mickey Gasper | Recalled | Boston Red Sox recalled C Mickey Gasper from Worcester Red Sox. |
| May 7 | Roman Anthony | Status Change | Boston Red Sox placed LF Roman Anthony on the 10-day injured list retroactive to May 5, 2026. Right wrist sprain. |
| May 7 | Raymond Burgos | Signed as Free Agent | Boston Red Sox signed free agent LHP Raymond Burgos to a minor league contract. |
| May 6 | Justin Slaten | Assigned | Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox. |
| May 6 | Alec Gamboa | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| May 6 | Sonny Gray | Status Change | Boston Red Sox activated RHP Sonny Gray from the 15-day injured list. |
| May 6 | Justin Slaten | Assigned | Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox. |
| May 4 | Patrick Sandoval | Status Change | Boston Red Sox placed LHP Patrick Sandoval on the 60-day injured list. Left UCL surgery recovery. |
| May 4 | Alec Gamboa | Selected | Boston Red Sox selected the contract of LHP Alec Gamboa from Worcester Red Sox. |
| May 4 | Danny Coulombe | Status Change | Boston Red Sox placed LHP Danny Coulombe on the 15-day injured list retroactive to May 2, 2026. Cervical spasms. |
| May 3 | Justin Slaten | Assigned | Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Portland Sea Dogs. |
| May 1 | Jake Bennett | Recalled | Boston Red Sox recalled LHP Jake Bennett from Worcester Red Sox. |
| Apr 30 | Nate Eaton | Optioned | Boston Red Sox optioned OF Nate Eaton to Worcester Red Sox. |
| Apr 29 | Garrett Crochet | Status Change | Boston Red Sox placed LHP Garrett Crochet on the 15-day injured list retroactive to April 26, 2026. Left shoulder inflammation. |
| Apr 29 | Nate Eaton | Recalled | Boston Red Sox recalled OF Nate Eaton from Worcester Red Sox. |
| Apr 23 | Eduardo Rivera | Optioned | Boston Red Sox optioned LHP Eduardo Rivera to Worcester Red Sox. |
| Apr 23 | Payton Tolle | Recalled | Boston Red Sox recalled LHP Payton Tolle from Worcester Red Sox. |
| Apr 22 | Triston Casas | Status Change | Boston Red Sox transferred 1B Triston Casas from the 10-day injured list to the 60-day injured list. Recovery from left patellar tendon repair. |
| Apr 22 | Jack Anderson | Optioned | Boston Red Sox optioned RHP Jack Anderson to Worcester Red Sox. |
| Apr 22 | Eduardo Rivera | Selected | Boston Red Sox selected the contract of LHP Eduardo Rivera from Worcester Red Sox. |
| Apr 21 | Sonny Gray | Status Change | Boston Red Sox placed RHP Sonny Gray on the 15-day injured list. Right hamstring strain. |
| Apr 21 | Tyler Samaniego | Recalled | Boston Red Sox recalled LHP Tyler Samaniego from Worcester Red Sox. |
| Apr 18 | Pedro Meza | Signed as Free Agent | Boston Red Sox signed free agent RHP Pedro Meza to a minor league contract. |
| Apr 18 | Rinangel Mayora | Signed as Free Agent | Boston Red Sox signed free agent LHP Rinangel Mayora to a minor league contract. |
| Apr 16 | Jack Anderson | Number Change | RHP Jack Anderson changed number to 77. |
| Apr 16 | Wilyer Abreu | Number Change | RF Wilyer Abreu changed number to 52. |
| Apr 16 | Roman Anthony | Number Change | RF Roman Anthony changed number to 19. |
| Apr 16 | Brayan Bello | Number Change | RHP Brayan Bello changed number to 66. |
| Apr 16 | Aroldis Chapman | Number Change | LHP Aroldis Chapman changed number to 44. |
| Apr 16 | Willson Contreras | Number Change | 1B Willson Contreras changed number to 40. |
| Apr 16 | Danny Coulombe | Number Change | LHP Danny Coulombe changed number to 67. |
| Apr 16 | Garrett Crochet | Number Change | LHP Garrett Crochet changed number to 35. |
| Apr 16 | Jarren Duran | Number Change | LF Jarren Duran changed number to 16. |
| Apr 16 | Sonny Gray | Number Change | RHP Sonny Gray changed number to 54. |
| Apr 16 | Caleb Durbin | Number Change | 3B Caleb Durbin changed number to 5. |
| Apr 16 | Connelly Early | Number Change | LHP Connelly Early changed number to 71. |
| Apr 16 | Marcelo Mayer | Number Change | 3B Marcelo Mayer changed number to 11. |
| Apr 16 | Zack Kelly | Number Change | RHP Zack Kelly changed number to 76. |
| Apr 16 | Isiah Kiner-Falefa | Number Change | SS Isiah Kiner-Falefa changed number to 2. |
| Apr 16 | Andruw Monasterio | Number Change | SS Andruw Monasterio changed number to 32. |
| Apr 16 | Jovani Morán | Number Change | LHP Jovani Morán changed number to 47. |
| Apr 16 | Ceddanne Rafaela | Number Change | CF Ceddanne Rafaela changed number to 3. |
| Apr 16 | Carlos Narváez | Number Change | C Carlos Narváez changed number to 75. |
| Apr 16 | Ranger Suarez | Number Change | LHP Ranger Suarez changed number to 55. |
| Apr 16 | Greg Weissert | Number Change | RHP Greg Weissert changed number to 57. |
| Apr 16 | Trevor Story | Number Change | SS Trevor Story changed number to 10. |
| Apr 16 | Ryan Watson | Number Change | RHP Ryan Watson changed number to 56. |
| Apr 16 | Garrett Whitlock | Number Change | RHP Garrett Whitlock changed number to 22. |
| Apr 16 | Masataka Yoshida | Number Change | LF Masataka Yoshida changed number to 7. |
| Apr 16 | Connor Wong | Number Change | C Connor Wong changed number to 12. |
| Apr 15 | Trevor Story | Number Change | SS Trevor Story changed number to 42. |
| Apr 15 | Jack Anderson | Number Change | RHP Jack Anderson changed number to 42. |
| Apr 15 | Jovani Morán | Number Change | LHP Jovani Morán changed number to 42. |
| Apr 15 | Aroldis Chapman | Number Change | LHP Aroldis Chapman changed number to 42. |
| Apr 15 | Greg Weissert | Number Change | RHP Greg Weissert changed number to 42. |
| Apr 15 | Caleb Durbin | Number Change | 3B Caleb Durbin changed number to 42. |
| Apr 15 | Roman Anthony | Number Change | RF Roman Anthony changed number to 42. |
| Apr 15 | Jarren Duran | Number Change | LF Jarren Duran changed number to 42. |
| Apr 15 | Marcelo Mayer | Number Change | 3B Marcelo Mayer changed number to 42. |
| Apr 15 | Zack Kelly | Number Change | RHP Zack Kelly changed number to 42. |
| Apr 15 | Wilyer Abreu | Number Change | RF Wilyer Abreu changed number to 42. |
| Apr 15 | Isiah Kiner-Falefa | Number Change | SS Isiah Kiner-Falefa changed number to 42. |
| Apr 15 | Masataka Yoshida | Number Change | LF Masataka Yoshida changed number to 42. |
| Apr 15 | Andruw Monasterio | Number Change | SS Andruw Monasterio changed number to 42. |
| Apr 15 | Garrett Crochet | Number Change | LHP Garrett Crochet changed number to 42. |
| Apr 15 | Connor Wong | Number Change | C Connor Wong changed number to 42. |
| Apr 15 | Ryan Watson | Number Change | RHP Ryan Watson changed number to 42. |
| Apr 15 | Carlos Narváez | Number Change | C Carlos Narváez changed number to 42. |
| Apr 15 | Ceddanne Rafaela | Number Change | CF Ceddanne Rafaela changed number to 42. |
| Apr 15 | Garrett Whitlock | Number Change | RHP Garrett Whitlock changed number to 42. |
| Apr 15 | Danny Coulombe | Number Change | LHP Danny Coulombe changed number to 42. |
| Apr 15 | Connelly Early | Number Change | LHP Connelly Early changed number to 42. |
| Apr 15 | Ranger Suarez | Number Change | LHP Ranger Suarez changed number to 42. |
| Apr 15 | Sonny Gray | Number Change | RHP Sonny Gray changed number to 42. |
| Apr 15 | Brayan Bello | Number Change | RHP Brayan Bello changed number to 42. |
| Apr 15 | Willson Contreras | Number Change | 1B Willson Contreras changed number to 42. |
| Apr 14 | Johan Oviedo | Status Change | Boston Red Sox transferred RHP Johan Oviedo from the 15-day injured list to the 60-day injured list. Right elbow strain. |
| Apr 14 | Jack Anderson | Selected | Boston Red Sox selected the contract of RHP Jack Anderson from Worcester Red Sox. |
| Apr 14 | Tyler Samaniego | Optioned | Boston Red Sox optioned LHP Tyler Samaniego to Worcester Red Sox. |
| Apr 11 | Kutter Crawford | Assigned | Boston Red Sox sent RHP Kutter Crawford on a rehab assignment to Worcester Red Sox. |
| Apr 10 | Anthony Seigler | Optioned | Boston Red Sox optioned 2B Anthony Seigler to Worcester Red Sox. |
| Apr 10 | Anthony Seigler | Status Change | Boston Red Sox activated 2B Anthony Seigler from the 10-day injured list. |
| Apr 9 | Anthony Seigler | Assigned | Boston Red Sox sent 2B Anthony Seigler on a rehab assignment to Worcester Red Sox. |
| Apr 8 | Patrick Sandoval | Assigned | Boston Red Sox sent LHP Patrick Sandoval on a rehab assignment to Worcester Red Sox. |
| Apr 8 | Tyler Samaniego | Recalled | Boston Red Sox recalled LHP Tyler Samaniego from Worcester Red Sox. |
| Apr 7 | Dilan Mata | Signed as Free Agent | Boston Red Sox signed free agent C Dilan Mata to a minor league contract. |
| Apr 7 | Maikel Vargas | Signed as Free Agent | Boston Red Sox signed free agent RHP Maikel Vargas to a minor league contract. |
| Apr 6 | Tyler Uberstine | Optioned | Boston Red Sox optioned RHP Tyler Uberstine to Worcester Red Sox. |
| Apr 6 | Garrett Whitlock | Status Change | Boston Red Sox activated RHP Garrett Whitlock from the paternity list. |
| Apr 5 | Patrick Galle | Trade | Boston Red Sox traded RHP Patrick Galle to St. Louis Cardinals. |
| Apr 4 | Jedixson Paez | Returned | RHP Jedixson Paez returned to Boston Red Sox from Chicago White Sox. |
| Apr 3 | Tyler Uberstine | Recalled | Boston Red Sox recalled RHP Tyler Uberstine from Worcester Red Sox. |
| Apr 3 | Zack Kelly | Recalled | Boston Red Sox recalled RHP Zack Kelly from Worcester Red Sox. |
| Apr 3 | Johan Oviedo | Status Change | Boston Red Sox placed RHP Johan Oviedo on the 15-day injured list retroactive to March 31, 2026. Right elbow strain. |
| Apr 3 | Garrett Whitlock | Status Change | Boston Red Sox placed RHP Garrett Whitlock on the paternity list. |
| Mar 31 | Angel Bastardo | Returned | RHP Angel Bastardo returned to Boston Red Sox from Toronto Blue Jays. |
| Mar 27 | Brendan Rodgers | Signed as Free Agent | Boston Red Sox signed free agent 2B Brendan Rodgers to a minor league contract. |
| Mar 26 | Cristian Alcantara | Signed as Free Agent | Boston Red Sox signed free agent RHP Cristian Alcantara to a minor league contract. |
| Mar 25 | Caleb Durbin | Number Change | 3B Caleb Durbin changed number to 5. |
| Mar 25 | Patrick Sandoval | Status Change | Boston Red Sox placed LHP Patrick Sandoval on the 15-day injured list retroactive to March 22, 2026. Left UCL surgery recovery. |
| Mar 25 | Anthony Seigler | Status Change | Boston Red Sox placed 2B Anthony Seigler on the 10-day injured list retroactive to March 22, 2026. Left knee patellar tendinopathy. |
| Mar 25 | Kutter Crawford | Status Change | Boston Red Sox placed RHP Kutter Crawford on the 15-day injured list retroactive to March 22, 2026. Right wrist surgery. |
| Mar 25 | Triston Casas | Status Change | Boston Red Sox placed 1B Triston Casas on the 10-day injured list retroactive to March 22, 2026. Recovery from left patellar tendon repair. |
| Mar 23 | Payton Tolle | Optioned | Boston Red Sox optioned LHP Payton Tolle to Worcester Red Sox. |
| Mar 23 | Tyler Uberstine | Optioned | Boston Red Sox optioned RHP Tyler Uberstine to Worcester Red Sox. |
| Mar 23 | Zack Kelly | Optioned | Boston Red Sox optioned RHP Zack Kelly to Worcester Red Sox. |
| Mar 23 | Ilan Fernandez | Assigned | SS Ilan Fernandez assigned to Boston Red Sox. |
| Mar 23 | Jhorman Bravo | Assigned | SS Jhorman Bravo assigned to Boston Red Sox. |
| Mar 23 | Tyler Samaniego | Optioned | Boston Red Sox optioned LHP Tyler Samaniego to Worcester Red Sox. |
| Mar 23 | Nate Eaton | Optioned | Boston Red Sox optioned 3B Nate Eaton to Worcester Red Sox. |
| Mar 23 | Mickey Gasper | Optioned | Boston Red Sox optioned 2B Mickey Gasper to Worcester Red Sox. |
| Mar 22 | Kutter Crawford | Status Change | Boston Red Sox placed RHP Kutter Crawford on the 15-day injured list. Right wrist surgery. |
| Mar 21 | Raudelis Martinez | Assigned | C Raudelis Martinez assigned to Boston Red Sox. |
| Mar 21 | Kristian Campbell | Optioned | Boston Red Sox optioned 2B Kristian Campbell to Worcester Red Sox. |
| Mar 20 | Eduardo Rivera | Assigned | LHP Eduardo Rivera assigned to Boston Red Sox. |
| Mar 20 | Blake Wehunt | Assigned | RHP Blake Wehunt assigned to Boston Red Sox. |
| Mar 19 | Starlyn Nunez | Status Change | 3B Starlyn Nunez roster status changed by Boston Red Sox. |
| Mar 19 | Starlyn Nunez | Assigned | 3B Starlyn Nunez assigned to Boston Red Sox. |
| Mar 19 | Tsung-Che Cheng | Optioned | Boston Red Sox optioned SS Tsung-Che Cheng to Worcester Red Sox. |
| Mar 19 | Nick Sogard | Optioned | Boston Red Sox optioned 1B Nick Sogard to Worcester Red Sox. |
| Mar 19 | Tommy Kahnle | Signed as Free Agent | Boston Red Sox signed free agent RHP Tommy Kahnle to a minor league contract and invited him to spring training. |
| Mar 18 | Emanuel Jimenez | Signed as Free Agent | Boston Red Sox signed free agent RHP Enmanuel Jimenez to a minor league contract. |
| Mar 18 | Santiago Yanes | Signed as Free Agent | Boston Red Sox signed free agent Santiago Yanes to a minor league contract. |
| Mar 18 | MLB Player 839441 | Signed as Free Agent | Boston Red Sox signed free agent RHP Emanuel Jimenez to a minor league contract. |
| Mar 17 | Hudson White | Assigned | C Hudson White assigned to Boston Red Sox. |
| Mar 16 | Henry Godbout | Status Change | 2B Henry Godbout roster status changed by Boston Red Sox. |
| Mar 16 | Henry Godbout | Assigned | 2B Henry Godbout assigned to Boston Red Sox. |
| Mar 13 | Danny Coulombe | Signed as Free Agent | Boston Red Sox signed free agent LHP Danny Coulombe. |
| Mar 12 | Romy Gonzalez | Status Change | Boston Red Sox placed 1B Romy Gonzalez on the 60-day injured list. Left shoulder surgery. |
| Mar 9 | Antonio Anderson | Assigned | 3B Antonio Anderson assigned to Boston Red Sox. |
| Mar 9 | Jake Bennett | Optioned | Boston Red Sox optioned LHP Jake Bennett to Worcester Red Sox. |
| Mar 8 | Yan Cruz | Assigned | OF Yan Cruz assigned to Boston Red Sox. |
| Mar 7 | D'Angelo Ortiz | Assigned | 3B D'Angelo Ortiz assigned to Boston Red Sox. |
| Mar 7 | Efren Teran | Assigned | SS Efren Teran assigned to Boston Red Sox. |
| Mar 7 | Tyler Miller | Assigned | 1B Tyler Miller assigned to Boston Red Sox. |
| Mar 7 | Harry Blum | Assigned | RHP Harry Blum assigned to Boston Red Sox. |
| Mar 6 | Yohander Linarez | Assigned | 3B Yohander Linarez assigned to Boston Red Sox. |
| Mar 6 | Justin Barry | Assigned | CF Justin Barry assigned to Boston Red Sox. |
| Mar 6 | Anderson Fermin | Assigned | OF Anderson Fermin assigned to Boston Red Sox. |
| Mar 6 | Ahbram Liendo | Assigned | 2B Ahbram Liendo assigned to Boston Red Sox. |
| Mar 6 | Juan Chacon | Assigned | RF Juan Chacon assigned to Boston Red Sox. |
| Mar 5 | Stanley Tucker | Assigned | LF Stanley Tucker assigned to Boston Red Sox. |
| Mar 5 | Miguel Bleis | Status Change | RF Miguel Bleis roster status changed by Boston Red Sox. |
| Mar 5 | Miguel Bleis | Assigned | RF Miguel Bleis assigned to Boston Red Sox. |
| Mar 5 | Drew Ehrhard | Assigned | C Drew Ehrhard assigned to Boston Red Sox. |
| Mar 4 | Will Turner | Assigned | OF Will Turner assigned to Boston Red Sox. |
| Mar 3 | Andrews Opata | Assigned | OF Andrews Opata assigned to Boston Red Sox. |
| Mar 2 | Enddy Azocar | Assigned | CF Enddy Azocar assigned to Boston Red Sox. |
| Mar 2 | Freili Encarnacion | Assigned | 3B Freili Encarnacion assigned to Boston Red Sox. |
| Mar 2 | Franklin Arias | Assigned | SS Franklin Arias assigned to Boston Red Sox. |
| Mar 1 | Natanael Yuten | Assigned | RF Natanael Yuten assigned to Boston Red Sox. |
| Feb 28 | Isaiah Jackson | Assigned | OF Isaiah Jackson assigned to Boston Red Sox. |
| Feb 27 | Avinson Pinto | Assigned | SS Avinson Pinto assigned to Boston Red Sox. |
| Feb 27 | Yophery Rodriguez | Assigned | CF Yophery Rodriguez assigned to Boston Red Sox. |
| Feb 26 | Wuilliams Rodriguez | Assigned | RHP Wuilliams Rodriguez assigned to Boston Red Sox. |
| Feb 26 | Justin Gonzales | Assigned | CF Justin Gonzales assigned to Boston Red Sox. |
| Feb 26 | Nelly Taylor | Assigned | OF Nelly Taylor assigned to Boston Red Sox. |
| Feb 25 | Joey Gartrell | Assigned | RHP Joey Gartrell assigned to Boston Red Sox. |
| Feb 24 | Griffin Kilander | Assigned | RHP Griffin Kilander assigned to Boston Red Sox. |
| Feb 24 | Steven Brooks | Assigned | RHP Steven Brooks assigned to Boston Red Sox. |
| Feb 23 | Frederik Jimenez | Assigned | OF Frederik Jimenez assigned to Boston Red Sox. |
| Feb 23 | Yoeilin Cespedes | Assigned | SS Yoeilin Cespedes assigned to Boston Red Sox. |
| Feb 23 | Cade Feeney | Assigned | RHP Cade Feeney assigned to Boston Red Sox. |
| Feb 23 | Joe Vogatsky | Assigned | RHP Joe Vogatsky assigned to Boston Red Sox. |
| Feb 22 | Jorge Juan | Assigned | RHP Jorge Juan assigned to Boston Red Sox. |
| Feb 22 | Calvin Bickerstaff | Assigned | RHP Calvin Bickerstaff assigned to Boston Red Sox. |
| Feb 21 | P.J. Labriola | Assigned | LHP P.J. Labriola assigned to Boston Red Sox. |
| Feb 21 | Patrick Halligan | Assigned | RHP Patrick Halligan assigned to Boston Red Sox. |
| Feb 21 | Cooper Adams | Assigned | RHP Cooper Adams assigned to Boston Red Sox. |
| Feb 21 | Mason White | Assigned | SS Mason White assigned to Boston Red Sox. |
| Feb 21 | Skylar King | Assigned | CF Skylar King assigned to Boston Red Sox. |
| Feb 20 | Phillip Sikes | Status Change | OF Phillip Sikes roster status changed by Boston Red Sox. |
| Feb 20 | Corey Rosier | Status Change | RF Corey Rosier roster status changed by Boston Red Sox. |
| Feb 20 | Jack Winnay | Status Change | 3B Jack Winnay roster status changed by Boston Red Sox. |
| Feb 20 | Michael Sansone | Assigned | LHP Michael Sansone assigned to Boston Red Sox. |
| Feb 20 | Jack Anderson | Assigned | RHP Jack Anderson assigned to Boston Red Sox. |
| Feb 20 | Reidis Sena | Assigned | RHP Reidis Sena assigned to Boston Red Sox. |
| Feb 20 | Jay Allmer | Assigned | RHP Jay Allmer assigned to Boston Red Sox. |
| Feb 20 | Max Carlson | Assigned | RHP Max Carlson assigned to Boston Red Sox. |
| Feb 20 | Nazzan Zanetello | Assigned | 3B Nazzan Zanetello assigned to Boston Red Sox. |
| Feb 20 | Corey Rosier | Assigned | RF Corey Rosier assigned to Boston Red Sox. |
| Feb 20 | Caden Rose | Assigned | OF Caden Rose assigned to Boston Red Sox. |
| Feb 20 | Phillip Sikes | Assigned | CF Phillip Sikes assigned to Boston Red Sox. |
| Feb 20 | Juan Montero | Assigned | C Juan Montero assigned to Boston Red Sox. |
| Feb 20 | Jack Winnay | Assigned | 3B Jack Winnay assigned to Boston Red Sox. |
| Feb 20 | Marvin Alcantara | Assigned | SS Marvin Alcantara assigned to Boston Red Sox. |
| Feb 16 | Ranfi Vargas | Signed as Free Agent | Boston Red Sox signed free agent RHP Ranfi Vargas to a minor league contract. |
| Feb 13 | Jesus Lopez | Signed as Free Agent | Boston Red Sox signed free agent RHP Jesus Lopez to a minor league contract. |
| Feb 12 | Harry Blum | Signed as Free Agent | Boston Red Sox signed free agent RHP Harry Blum to a minor league contract. |
| Feb 10 | Isiah Kiner-Falefa | Signed as Free Agent | Boston Red Sox signed free agent SS Isiah Kiner-Falefa. |
| Feb 10 | Tanner Houck | Status Change | Boston Red Sox placed RHP Tanner Houck on the 60-day injured list. |
| Feb 9 | Brendan Rodgers | Signed as Free Agent | Boston Red Sox signed free agent 2B Brendan Rodgers to a minor league contract and invited him to spring training. |
| Feb 9 | Anthony Seigler | Trade | Boston Red Sox traded LHP Kyle Harrison, LHP Shane Drohan and 2B David Hamilton to Milwaukee Brewers for 3B Caleb Durbin, SS Andruw Monasterio, 2B Anthony Seigler and Future Considerations. |
| Feb 6 | Radinsson Lopez | Signed as Free Agent | Boston Red Sox signed free agent LHP Radinsson Lopez to a minor league contract. |
| Feb 6 | Tsung-Che Cheng | Claimed Off Waivers | Boston Red Sox claimed SS Tsung-Che Cheng off waivers from Washington Nationals. |
| Feb 5 | Vinny Nittoli | Signed as Free Agent | Boston Red Sox signed free agent RHP Vinny Nittoli to a minor league contract. |
| Feb 5 | Kyle Keller | Status Change | RHP Kyle Keller roster status changed by Boston Red Sox. |
| Feb 5 | Kyle Keller | Signed as Free Agent | Boston Red Sox signed free agent RHP Kyle Keller to a minor league contract. |
| Feb 4 | Mickey Gasper | Claimed Off Waivers | Boston Red Sox claimed 2B Mickey Gasper off waivers from Washington Nationals. |
| Feb 3 | Matt Thaiss | Signed as Free Agent | Boston Red Sox signed free agent C Matt Thaiss to a minor league contract. |
| Feb 1 | — | Trade | Boston Red Sox traded RHP David Sandlin, RHP Jordan Hicks, Player To Be Named Later, Player To Be Named Later and cash to Chicago White Sox for RHP Gage Ziehl and Player To Be Named Later. |
| Jan 23 | Jeremy Wu-Yelland | Assigned | Boston Red Sox invited non-roster LHP Jeremy Wu-Yelland to spring training. |
| Jan 23 | Jacob Webb | Assigned | Boston Red Sox invited non-roster RHP Jacob Webb to spring training. |
| Jan 23 | Noah Song | Assigned | Boston Red Sox invited non-roster RHP Noah Song to spring training. |
| Jan 23 | Wyatt Olds | Assigned | Boston Red Sox invited non-roster RHP Wyatt Olds to spring training. |
| Jan 23 | Seth Martinez | Assigned | Boston Red Sox invited non-roster RHP Seth Martinez to spring training. |
| Jan 23 | Tyron Guerrero | Assigned | Boston Red Sox invited non-roster RHP Tayron Guerrero to spring training. |
| Jan 23 | Nathan Hickey | Assigned | Boston Red Sox invited non-roster C Nathan Hickey to spring training. |
| Jan 23 | Nate Baez | Assigned | Boston Red Sox invited non-roster C Nate Baez to spring training. |
| Jan 23 | Ronald Rosario | Assigned | Boston Red Sox invited non-roster C Ronald Rosario to spring training. |
| Jan 23 | Braiden Ward | Assigned | Boston Red Sox invited non-roster CF Braiden Ward to spring training. |
| Jan 23 | Allan Castro | Assigned | Boston Red Sox invited non-roster CF Allan Castro to spring training. |
| Jan 23 | Tyler McDonough | Assigned | Boston Red Sox invited non-roster OF Tyler McDonough to spring training. |
| Jan 23 | Max Ferguson | Assigned | Boston Red Sox invited non-roster 2B Max Ferguson to spring training. |
| Jan 23 | Mikey Romero | Assigned | Boston Red Sox invited non-roster SS Mikey Romero to spring training. |
| Jan 21 | Ranger Suarez | Signed as Free Agent | Boston Red Sox signed free agent LHP Ranger Suárez. |
| Jan 21 | Nate Baez | Trade | Minnesota Twins traded C Nate Baez to Boston Red Sox for 3B Tristan Gray. |
| Jan 15 | Yeider Pineda | Signed as Free Agent | Boston Red Sox signed free agent RHP Yeider Pineda to a minor league contract. |
| Jan 15 | Anderson Gonzalez | Signed as Free Agent | Boston Red Sox signed free agent SS Anderson Gonzalez to a minor league contract. |
| Jan 15 | Harry Canedo | Signed as Free Agent | Boston Red Sox signed free agent RHP Harry Canedo to a minor league contract. |
| Jan 15 | Luis Cayama | Signed as Free Agent | Boston Red Sox signed free agent RHP Luis Cayama to a minor league contract. |
| Jan 15 | Angel Roa | Signed as Free Agent | Boston Red Sox signed free agent RHP Angel Roa to a minor league contract. |
| Jan 15 | Freyerso Vasquez | Signed as Free Agent | Boston Red Sox signed free agent OF Freyerso Vasquez to a minor league contract. |
| Jan 15 | Anderber Urbina | Signed as Free Agent | Boston Red Sox signed free agent SS Anderber Urbina to a minor league contract. |
| Jan 15 | Edgardo Gutierrez | Signed as Free Agent | Boston Red Sox signed free agent C Edgardo Gutierrez to a minor league contract. |
| Jan 15 | Wilneyker Bruce | Signed as Free Agent | Boston Red Sox signed free agent SS Wilneyker Bruce to a minor league contract. |
| Jan 15 | Isaac Velasquez | Signed as Free Agent | Boston Red Sox signed free agent SS Isaac Velasquez to a minor league contract. |
| Jan 15 | Esterlin Casanova | Signed as Free Agent | Boston Red Sox signed free agent SS Esterlin Casanova to a minor league contract. |
| Jan 15 | Dawvris Brito | Signed as Free Agent | Boston Red Sox signed free agent SS Dawvris Brito to a minor league contract. |
| Jan 15 | Eber Miranda | Signed as Free Agent | Boston Red Sox signed free agent OF Eber Miranda to a minor league contract. |
| Jan 15 | Garielvin Silverio | Signed as Free Agent | Boston Red Sox signed free agent OF Garielvin Silverio to a minor league contract. |
| Jan 15 | Axell Herrera | Signed as Free Agent | Boston Red Sox signed free agent SS Axell Herrera to a minor league contract. |
| Jan 15 | Claudio Pereira | Signed as Free Agent | Boston Red Sox signed free agent RHP Claudio Pereira to a minor league contract. |
| Jan 15 | Joskairo Ramirez | Signed as Free Agent | Boston Red Sox signed free agent OF Joskairo Ramirez to a minor league contract. |
| Jan 15 | Isaac Brujan | Signed as Free Agent | Boston Red Sox signed free agent RHP Isaac Brujan to a minor league contract. |
| Jan 12 | Patrick Halligan | Signed as Free Agent | Boston Red Sox signed free agent RHP Patrick Halligan to a minor league contract. |
| Jan 9 | Tyron Guerrero | Signed as Free Agent | Boston Red Sox signed free agent RHP Tayron Guerrero to a minor league contract. |
| Jan 8 | Seth Martinez | Signed as Free Agent | Boston Red Sox signed free agent RHP Seth Martinez to a minor league contract. |
| Jan 6 | T.J. Sikkema | Signed as Free Agent | Boston Red Sox signed free agent LHP T.J. Sikkema to a minor league contract and invited him to spring training. |
| Jan 6 | Hobie Harris | Assigned | Boston Red Sox invited non-roster RHP Hobie Harris to spring training. |