January 12, 2019

Blue Jays  sign David Phelps as a free agent

January 14, 2019

Blue Jays  sign Javy Guerra

January 29, 2019

Blue Jays  sign Freddy Galvis as a free agent

February 16, 2019

Blue Jays  sign John Axford

February 28, 2019

Blue Jays  sign Andy Burns

March 17, 2019

Jason Adam traded from Royals  to Blue Jays 

March 23, 2019

Blue Jays  release John Axford

March 25, 2019

Blue Jays  sign Daniel Hudson as a free agent

Blue Jays  sign John Axford

March 28, 2019

Blue Jays  place Jonathan Davis on the injured list

Blue Jays  place David Phelps on the injured list

Blue Jays  place Ryan Borucki on the injured list

Blue Jays  place Ryan Tepera on the injured list

April 02, 2019

April 18, 2019

Blue Jays  designate Javy Guerra for assignment

April 21, 2019

Blue Jays  place Matt Shoemaker on the injured list

May 10, 2019

Patrick Kivlehan traded from Pirates  to Blue Jays 

May 18, 2019

Blue Jays  designate Javy Guerra for assignment

Blue Jays  sign Vinny Nittoli

May 21, 2019

Blue Jays  place Ryan Tepera on the injured list

May 26, 2019

Blue Jays  place Tim Mayza on the injured list

May 28, 2019

Blue Jays  designate Zac Rosscup for assignment

June 12, 2019

Blue Jays  place Ken Giles on the injured list

June 13, 2019

Blue Jays  sign Alek Manoah

July 22, 2019

Blue Jays  place Trent Thornton on the injured list

July 27, 2019

Blue Jays  place Luke Maile on the injured list

July 28, 2019

Eric Sogard traded from Blue Jays  to Rays 

July 30, 2019

July 31, 2019

Blue Jays  place Ryan Borucki on the injured list

Daniel Hudson traded from Blue Jays  to Nationals 

August 07, 2019

Blue Jays  designate David Paulino for assignment

August 10, 2019

Blue Jays  place Lourdes Gurriel on the injured list

Blue Jays  release David Paulino

September 03, 2019

Blue Jays  designate Zack Godley for assignment

September 18, 2019

Blue Jays  place Tim Mayza on the injured list

September 25, 2019

Blue Jays  place Lourdes Gurriel on the injured list

November 04, 2019

Blue Jays  designate Ryan Tepera for assignment

Chase Anderson traded from Brewers  to Blue Jays 

November 07, 2019

Blue Jays  release Ryan Tepera

November 18, 2019

Blue Jays  sign Patrick Kivlehan

November 25, 2019

Blue Jays  sign A.J. Cole

December 01, 2019

Blue Jays  sign Justin Miller

December 02, 2019

Derek Law became a free agent

Jason Adam became a free agent

Luke Maile became a free agent

December 18, 2019

Blue Jays  sign Tanner Roark as a free agent

December 27, 2019

Blue Jays  sign Hyun Jin Ryu as a free agent

December 30, 2019

Blue Jays  sign Travis Shaw as a free agent