January 08, 2020

Mets  release Sam Haggerty

Mets  sign Yefry Ramirez

January 09, 2020

Mets  sign Jake Hager

Mets  sign Johneshwy Fargas

January 20, 2020

Mets  sign Rene Rivera

January 24, 2020

Mets  sign Erasmo Ramirez

January 31, 2020

Mets  sign Matt Adams

June 27, 2020

Mets  place Noah Syndergaard on the injured list

Mets  release Erasmo Ramirez

June 29, 2020

Mets  sign Hunter Strickland

Mets  sign Erasmo Ramirez

July 15, 2020

Mets  place Brad Brach on the injured list

July 18, 2020

Mets  release Matt Adams

July 20, 2020

Mets  place Jed Lowrie on the injured list

July 22, 2020

Mets  place Robert Gsellman on the injured list

Mets  place Marcus Stroman on the injured list

Mets  sign Juan Lagares

July 23, 2020

Mets  designate Stephen Gonsalves for assignment

July 29, 2020

Mets  place Jake Marisnick on the injured list

July 30, 2020

Mets  designate Hunter Strickland for assignment

July 31, 2020

Mets  place Rene Rivera on the injured list

August 02, 2020

Billy Hamilton traded from Giants  to Mets 

August 04, 2020

Mets  place Robinson Cano on the injured list

August 09, 2020

Mets  place Michael Wacha on the injured list

August 18, 2020

Mets  place David Peterson on the injured list

August 25, 2020

Mets  place Tomas Nido on the injured list

Mets  place Andres Gimenez on the injured list

August 28, 2020

Mets  place Corey Oswalt on the injured list

Mets  designate Juan Lagares for assignment

August 30, 2020

Mets  place Dellin Betances on the injured list

Mets  place Steven Matz on the injured list

Juan Lagares became a free agent

August 31, 2020

Todd Frazier traded from Rangers  to Mets 

Miguel Castro traded from Orioles  to Mets 

Robinson Chirinos traded from Rangers  to Mets 

September 01, 2020

Mets  designate Hunter Strickland for assignment

September 04, 2020

Mets  designate Billy Hamilton for assignment

September 09, 2020

Mets  place Robert Gsellman on the injured list

September 20, 2020

Mets  release Yefry Ramirez

September 21, 2020

Mets  place Jake Marisnick on the injured list

September 24, 2020

Mets  place Michael Conforto on the injured list

September 26, 2020

Mets  place Andres Gimenez on the injured list

September 27, 2020

Mets  place Erasmo Ramirez on the injured list

October 28, 2020

Robinson Chirinos became a free agent

Rene Rivera became a free agent

Justin Wilson became a free agent

Marcus Stroman became a free agent

Jake Marisnick became a free agent

Wilson Ramos became a free agent

Michael Wacha became a free agent

Jed Lowrie became a free agent

Erasmo Ramirez became a free agent

Todd Frazier became a free agent

November 04, 2020

Mets  sign Arodys Vizcaino

Mets  sign Jake Hager as a free agent

Mets  sign Jose Peraza as a free agent

November 11, 2020

Mets  sign Marcus Stroman as a free agent

November 30, 2020

Mets  sign Trevor Hildenberger

December 02, 2020

Chasen Shreve became a free agent

Nick Tropeano became a free agent

Paul Sewald became a free agent

Mets  sign Trevor May as a free agent

December 10, 2020

Luis Oviedo traded from Mets  to Pirates 

December 15, 2020

Mets  sign James McCann as a free agent

December 21, 2020

Mets  sign Jerad Eickhoff as a free agent

Mets  sign Wilfredo Tovar