January 04, 2019

Orioles  designate Breyvic Valera for assignment

January 05, 2019

Breyvic Valera traded from Orioles  to Giants 

January 28, 2019

Orioles  designate Austin Brice for assignment

February 16, 2019

Orioles  sign Alcides Escobar

February 19, 2019

Orioles  designate Hanser Alberto for assignment

March 08, 2019

Orioles  designate Josh Osich for assignment

March 20, 2019

Orioles  release Alcides Escobar

March 23, 2019

Orioles  designate Stevie Wilkerson for assignment

Mike Yastrzemski traded from Orioles  to Giants 

March 25, 2019

Orioles  place Austin Wynns on the injured list

Orioles  place Alex Cobb on the injured list

March 28, 2019

Orioles  sign Mason Williams

April 05, 2019

Orioles  designate Drew Jackson for assignment

April 09, 2019

Orioles  place Alex Cobb on the injured list

April 11, 2019

Orioles  place Richard Bleier on the injured list

April 21, 2019

Orioles  designate Mike Wright for assignment

April 24, 2019

Mike Wright traded from Orioles  to Mariners 

April 28, 2019

Orioles  place Alex Cobb on the injured list

May 22, 2019

Orioles  designate Yefry Ramirez for assignment

May 27, 2019

Yefry Ramirez traded from Orioles  to Pirates 

June 09, 2019

Thomas Eshelman traded from Phillies  to Orioles 

June 20, 2019

Orioles  place John Means on the injured list

June 24, 2019

Orioles  sign Adley Rutschman

June 25, 2019

Orioles  sign Kyle Stowers

Orioles  sign Gunnar Henderson

June 26, 2019

Orioles  place Josh Rogers on the injured list

July 13, 2019

Orioles  place Dylan Bundy on the injured list

July 19, 2019

Orioles  sign Jace Peterson

July 26, 2019

Orioles  place John Means on the injured list

August 03, 2019

Orioles  designate Jose Rondon for assignment

August 07, 2019

Orioles  place DJ Stewart on the injured list

August 14, 2019

Orioles  designate Jimmy Yacabonis for assignment

August 23, 2019

Orioles  place Shawn Armstrong on the injured list

September 02, 2019

Orioles  designate Thomas Eshelman for assignment

September 03, 2019

Orioles  designate Jace Peterson for assignment

September 16, 2019

Orioles  designate Ty Blach for assignment

November 12, 2019

Orioles  release Aaron Brooks

November 18, 2019

Orioles  sign Rob Zastryzny

November 22, 2019

Orioles  sign Mason Williams

December 02, 2019

Jonathan Villar traded from Orioles  to Marlins 

December 04, 2019

December 29, 2019

Orioles  designate Marcos Diplan for assignment

Orioles  sign Kohl Stewart as a free agent