Oct 31, 2023

• The New York Mets claimed RHP Penn Murfee off waivers from Seattle.
• The Los Angeles Dodgers named Lorenzo Sciarrino senior vice president, global partnerships.

Oct 30, 2023

• The St. Louis Cardinals announced RHP Jacob Barnes elected free agency.
• The Arizona Diamondbacks claimed RHP Chris Rodriguez off waivers from the L.A. Angels.

Oct 26, 2023

• The St. Louis Cardinals announced RHP Casey Lawrence and LHP Andrew Suarez have elected free agency.
• The Cincinnati Reds claimed OF Bubba Thompson off waivers from Kansas City.
• The Philadelphia Phillies announced bullpen coach Dave Lundquist and assistant hitting coach Jason Camilli will not return next season.
• The Houston Astros announced the retirement of manager Dusty Baker.
• The Baltimore Orioles promoted Matt Blood to vice president/player development and domestic scouting, Koby Perez to vice president/ international scouting and operations, Mike Snyder to senior director/pro scouting, Gerardo Cabrera to director/Latin American scouting, Kevin Carter to manager/pro scouting, Hendrik Herz to manager/domestic scouting analysis, Chad Tatum to manager/domestic scouting, Will Robertson to special assignment scout and Alex Tarandek to senior analyst/scouting. Named Michael Weis senior data scientist/draft evaluation and Maria Areliano senior manager/international operations and baseball administration.

Oct 25, 2023

• The Atlanta Braves agreed to terms with RHP Pierce Johnson on a two-year contract.
• The Washington Nationals named Danny Haas vice president, amateur scouting, Brad Ciolek senior director, amateur scouting and Reed Dunn assistant director and national crosschecker, amateur scouting.
• The St. Louis Cardinals claimed INF Buddy Kennedy off waivers from Oakland.
• The Houston Astros claimed RHP Oliver Ortega off waivers from Minnesota.
• The Boston Red Sox named Craig Breslow chief baseball officer.
• The Baltimore Orioles claimed LHP Tucker Davidson off waivers from Kansas City.
• The Oakland Athletics claimed LHP Anthony Kay off waivers from the New York Mets.

Oct 24, 2023

• The Oakland Athletics claimed LHP Anthony Kay off waivers from the New York Mets.

Oct 16, 2023

• The Miami Marlins announced General Manager Kim Ng will not return for the 2024 season.

Oct 15, 2023

• The Texas Rangers added RHPs Jon Gray and Max Scherzer to the active roster. Removed LHP Brock Burke and RHP Matt Bush from the active roster.
• The Houston Astros added RHP Ronel Blanco to the active roster.

Oct 13, 2023

• The Texas Rangers changed RHP Jon Gray roster status.
• The Seattle Mariners claimed RHP Kaleb Ort off waivers from Boston.
• The Chicago White Sox announced 1B coach Daryl Boston and hitting coach Jose Castro will not return in 2024. Bullpen coach Curt Hasler and assistant hitting coach Chris Johnston have been offered positions in the player development system.

Oct 12, 2023

• The Philadelphia Phillies traded cash considerations to Tampa Bay Rays for OF Jordan Qsar.
• The Tampa Bay Rays traded OF Jordan Qsar to Philadelphia for cash considerations.

Oct 9, 2023

• The Oakland Athletics announced RHP Austin Pruitt has elected free agency.

Oct 7, 2023

• The Philadelphia Phillies activated RHP Michael Lorenzen.
• The Atlanta Braves activated SS Vaughn Grissom.
• The Arizona Diamondbacks activated LHP Kyle Nelson.
• The Texas Rangers activated LHP Cody Bradford.
• The Minnesota Twins activated RHP Bailey Ober.
• The Houston Texans activated RHP Ryne Stanek.
• The Baltimore Orioles activated RHP Bryan Baker.

Oct 5, 2023

• The New York Mets announced the resignation of Billy Eppler as general manager.
• The Baltimore Orioles announced RHP Jorge Lopez has cleared waivers and elected free agency in lieu of accepting an assignment to Norfolk (IL).

Oct 4, 2023

• The Los Angeles Dodgers reinstated RHP Lance Lynn from the bereavement list.
• The Baltimore Orioles announced RHP Jorge Lopez has elected free agency.

Oct 3, 2023

• The Chicago White Sox claimed RHP Alex Speas off waivers from Texas. Released OF Tyler Naquin.
• The Cleveland Guardians announced the retirement of manager Terry Francona.

Oct 2, 2023

• The Milwaukee Brewers released 3B Brian Anderson.
• The Los Angeles Angels declined option on manager Phil Nevin's contract.
• The New York Mets named David Stearns president of baseball operations.

Oct 1, 2023

• The New York Mets fired manager Buck Showalter.