- New York Mets sold Larry Bearnarth to the Milwaukee Brewers on October 20, 1970.
- New York Mets sold Chuck Taylor to the Milwaukee Brewers on September 13, 1972.
- New York Mets traded Jack Heidemann to the Milwaukee Brewers for Tom Deidel on June 22, 1976.
- New York Mets signed free agent Tom Hausman of the Milwaukee Brewers on November 21, 1977.
- New York Mets purchased Kevin Kobel from the Milwaukee Brewers on December 6, 1977.
- New York Mets traded Dwight Bernard to the Milwaukee Brewers for Mark Bomback on October 26, 1979.
- New York Mets purchased Dan Boitano from the Milwaukee Brewers on April 5, 1981.
- New York Mets selected Brian Giles in free agent draft on December 3, 1984.
- New York Mets traded Julio Machado and Kevin Brown to the Milwaukee Brewers for Charlie O'Brien and Kevin Carmody on August 30, 1990.
- New York Mets signed free agent Willie Randolph of the Milwaukee Brewers on December 20, 1991.
- New York Mets traded Wayne Housie to the Milwaukee Brewers for Josias Manzanillo on June 12, 1993.
- New York Mets claimed Bill Spiers on waivers from the Milwaukee Brewers on October 25, 1994.
- New York Mets traded Fernando Vina and Javier Gonzales to the Milwaukee Brewers for Doug Henry on November 30, 1994.
- New York Mets traded Kelly Stinnett to the Milwaukee Brewers for Cory Lidle on January 17, 1996.
- New York Mets traded Pete Harnisch to the Milwaukee Brewers for Donny Moore on August 31, 1997.
- New York Mets traded Bill Pulsipher to the Milwaukee Brewers for Mike Kinkade on July 31, 1998.
- New York Mets traded Luis Lopez to the Milwaukee Brewers for Bill Pulsipher on January 21, 2000.
- New York Mets traded Lenny Harris, Alex Ochoa and Glendon Rusch to the Milwaukee Brewers for Jeromy Burnitz, Jeff D'Amico, Mark Sweeney and Lou Collier on January 21, 2002.
- New York Mets claimed Marco Scutaro on waivers from the Milwaukee Brewers on April 5, 2002.
- Milwaukee Brewers claimed Brady Clark of the New York Mets on waivers on January 21, 2003.
- Milwaukee Brewers signed Ricky Bottalico of the New York Mets as a free agent on January 21, 2005.
- New York Mets traded Geremi Gonzalez to the Milwaukee Brewers for Mike Adams on May 26, 2006.
- New York Mets traded Guillermo Mota to the Milwaukee Brewers for Johnny Estrada on November 20, 2007.
- New York Mets signed free agent Matt Wise of the Milwaukee Brewers on December 18, 2007.
- Milwaukee Brewers signed Trot Nixon of the New York Mets as a free agent on December 20, 2008.
- New York Mets signed free agent Frank Catalanotto of the Milwaukee Brewers on February 9, 2010.
- Milwaukee Brewers signed Sean Green of the New York Mets as a free agent on December 22, 2010.
- New York Mets traded Francisco Rodriguez to the Milwaukee Brewers for Danny Herrera and Adrian Rosario on July 12, 2011.
- Milwaukee Brewers claimed Josh Stinson of the New York Mets on waivers on April 4, 2012.
- New York Mets signed free agent Shaun Marcum of the Milwaukee Brewers on January 30, 2013.
- Milwaukee Brewers claimed Juan Centeno of the New York Mets on waivers on October 31, 2014.
- Milwaukee Brewers claimed Kirk Nieuwenhuis of the New York Mets on waivers on December 23, 2015.
- New York Mets claimed Tom Milone on waivers from the Milwaukee Brewers on May 7, 2017.
- New York Mets traded Neil Walker to the Milwaukee Brewers for Eric Hanhold on August 12, 2017.
- New York Mets signed free agent Anthony Swarzak of the Milwaukee Brewers on December 15, 2017.
- New York Mets traded Bobby Wahl, Adam Hill and Felix Valerio to the Milwaukee Brewers for Keon Broxton on January 5, 2019.
- New York Mets claimed Donnie Hart on waivers from the Milwaukee Brewers on August 3, 2019.
- New York Mets claimed Jake Hager on waivers from the Milwaukee Brewers on May 25, 2021.
- Milwaukee Brewers claimed Jake Hager of the New York Mets on waivers on May 25, 2021.
- New York Mets signed free agent Eduardo Escobar of the Milwaukee Brewers on December 1, 2021.
- Milwaukee Brewers signed Adonis Medina of the New York Mets as a free agent on December 15, 2022.
- New York Mets traded Mark Canha to the Milwaukee Brewers for Justin Jarvis on July 31, 2023.
- New York Mets traded Tyler Jay to the Milwaukee Brewers for TJ Shook on July 21, 2024.
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