April 06, 2019

Red Sox  place Brock Holt on the injured list

April 19, 2019

Red Sox  designate Erasmo Ramirez for assignment

Marcus Wilson traded from Diamondbacks  to Red Sox 

April 20, 2019

Red Sox  place Nathan Eovaldi on the injured list

May 04, 2019

Red Sox  place Tzu-Wei Lin on the injured list

May 06, 2019

Red Sox  place David Price on the injured list

May 23, 2019

Red Sox  place Tyler Thornburg on the injured list

May 29, 2019

Red Sox  place Mitch Moreland on the injured list

June 08, 2019

Red Sox  place Mitch Moreland on the injured list

June 14, 2019

Red Sox  place Heath Hembree on the injured list

June 17, 2019

Red Sox  sign Chris Owings

July 10, 2019

Red Sox  release Tyler Thornburg

August 02, 2019

Red Sox  place Heath Hembree on the injured list

August 08, 2019

Red Sox  place David Price on the injured list

August 12, 2019

Red Sox  place Michael Chavis on the injured list

August 17, 2019

Red Sox  place Chris Sale on the injured list

August 31, 2019

Red Sox  sign Jhoulys Chacin

October 21, 2019

Chris Owings became a free agent

October 31, 2019

Brock Holt became a free agent

Jhoulys Chacin became a free agent

Mitch Moreland became a free agent

December 02, 2019

Sandy Leon traded from Red Sox  to Indians 

Josh Osich became a free agent

December 04, 2019

Red Sox  sign Josh Osich as a free agent

December 13, 2019

Red Sox  sign Jose Peraza as a free agent

December 19, 2019

Red Sox  sign Martin Perez as a free agent

December 20, 2019

Red Sox  sign John Andreoli

Red Sox  sign Mike Kickham

Red Sox  sign R.J. Alvarez