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NYM · 2026 transactions
Data through 2026-10-03
| Date | Player | Type | Detail |
|---|---|---|---|
| Sep 27 | Jonathan Pintaro | Status Change | New York Mets placed RHP Jonathan Pintaro on the 15-day injured list. Undisclosed illness. |
| Sep 27 | Jefry Yan | Recalled | New York Mets recalled LHP Jefry Yan from FCL Mets. |
| Sep 26 | Jefry Yan | Optioned | New York Mets optioned LHP Jefry Yan to FCL Mets. |
| Sep 26 | Chayce McDermott | Recalled | New York Mets recalled RHP Chayce McDermott from Syracuse Mets. |
| Sep 25 | Xzavion Curry | Outrighted | New York Mets sent RHP Xzavion Curry outright to FCL Mets. |
| Sep 25 | Jack Weisenburger | Optioned | New York Mets optioned RHP Jack Weisenburger to FCL Mets. |
| Sep 25 | Justin Hagenman | Recalled | New York Mets recalled RHP Justin Hagenman from Syracuse Mets. |
| Sep 23 | Xzavion Curry | Designated for Assignment | New York Mets designated RHP Xzavion Curry for assignment. |
| Sep 23 | Philip Abner | Claimed Off Waivers | New York Mets claimed LHP Philip Abner off waivers from San Francisco Giants. |
| Sep 22 | Christian Scott | Status Change | New York Mets placed RHP Christian Scott on the 15-day injured list. Left knee inflammation. |
| Sep 22 | Devin Williams | Status Change | New York Mets activated RHP Devin Williams from the 15-day injured list. |
| Sep 19 | Cionel Pérez | Status Change | New York Mets activated LHP Cionel Pérez from the 15-day injured list. |
| Sep 19 | Cameron Weston | Optioned | New York Mets optioned RHP Cameron Weston to Syracuse Mets. |
| Sep 18 | Jared Young | Status Change | New York Mets placed 1B Jared Young on the 7-day injured list. Concussion. |
| Sep 18 | Ronny Mauricio | Recalled | New York Mets recalled SS Ronny Mauricio from Syracuse Mets. |
| Sep 17 | Cameron Weston | Recalled | New York Mets recalled RHP Cameron Weston from Syracuse Mets. |
| Sep 17 | Xzavion Curry | Optioned | New York Mets optioned RHP Xzavion Curry to Syracuse Mets. |
| Sep 16 | Xzavion Curry | Status Change | New York Mets activated RHP Xzavion Curry. |
| Sep 16 | Jefry Yan | Recalled | New York Mets recalled LHP Jefry Yan from Syracuse Mets. |
| Sep 16 | Xzavion Curry | Recalled | New York Mets recalled RHP Xzavion Curry from Syracuse Mets. |
| Sep 16 | Daniel Duarte | Status Change | New York Mets placed RHP Daniel Duarte on the 15-day injured list. Left hamstring strain. |
| Sep 16 | Robert Stock | Status Change | New York Mets placed RHP Robert Stock on the 15-day injured list retroactive to September 13, 2026. Finger numbness. |
| Sep 16 | Juan Soto | Number Change | LF Juan Soto changed number to 22. |
| Sep 16 | Francisco Lindor | Number Change | SS Francisco Lindor changed number to 12. |
| Sep 16 | Bo Bichette | Number Change | 3B Bo Bichette changed number to 19. |
| Sep 16 | Marcus Semien | Number Change | 2B Marcus Semien changed number to 10. |
| Sep 15 | Bo Bichette | Number Change | 3B Bo Bichette changed number to 21. |
| Sep 15 | Francisco Lindor | Number Change | SS Francisco Lindor changed number to 21. |
| Sep 15 | Marcus Semien | Number Change | 2B Marcus Semien changed number to 21. |
| Sep 15 | Juan Soto | Number Change | LF Juan Soto changed number to 21. |
| Sep 15 | Christian Cairo | Optioned | New York Mets optioned SS Christian Cairo to Syracuse Mets. |
| Sep 15 | Christian Cairo | Claimed Off Waivers | New York Mets claimed SS Christian Cairo off waivers from Philadelphia Phillies. |
| Sep 15 | Cionel Pérez | Assigned | New York Mets sent LHP Cionel Pérez on a rehab assignment to Syracuse Mets. |
| Sep 13 | Chris Devenski | Outrighted | New York Mets sent RHP Chris Devenski outright to Syracuse Mets. |
| Sep 11 | Jack Weisenburger | Recalled | New York Mets recalled RHP Jack Weisenburger from Syracuse Mets. |
| Sep 11 | Chris Devenski | Designated for Assignment | New York Mets designated RHP Chris Devenski for assignment. |
| Sep 8 | Cionel Pérez | Assigned | New York Mets sent LHP Cionel Pérez on a rehab assignment to Binghamton Rumble Ponies. |
| Sep 7 | Justin Hagenman | Optioned | New York Mets optioned RHP Justin Hagenman to Syracuse Mets. |
| Sep 7 | Jonah Tong | Recalled | New York Mets recalled RHP Jonah Tong from Syracuse Mets. |
| Sep 6 | Tobias Myers | Recalled | New York Mets recalled RHP Tobias Myers from Syracuse Mets. |
| Sep 6 | Jefry Yan | Optioned | New York Mets optioned LHP Jefry Yan to Syracuse Mets. |
| Sep 5 | Shawn Ross | Claimed Off Waivers | Toronto Blue Jays claimed C Shawn Ross off waivers from New York Mets. |
| Sep 3 | Shawn Ross | Designated for Assignment | New York Mets designated C Shawn Ross for assignment. |
| Sep 3 | Cameron Weston | Optioned | New York Mets optioned RHP Cameron Weston to Syracuse Mets. |
| Sep 3 | Cameron Weston | Claimed Off Waivers | New York Mets claimed RHP Cameron Weston off waivers from Baltimore Orioles. |
| Sep 2 | Dylan Ross | Optioned | New York Mets optioned RHP Dylan Ross to Syracuse Mets. |
| Sep 2 | Justin Hagenman | Status Change | New York Mets activated RHP Justin Hagenman from the 60-day injured list. |
| Sep 1 | Nick Morabito | Recalled | New York Mets recalled LF Nick Morabito from Syracuse Mets. |
| Sep 1 | Dylan Ross | Recalled | New York Mets recalled RHP Dylan Ross from Syracuse Mets. |
| Aug 31 | Luis Robert Jr. | Claimed Off Waivers | Baltimore Orioles claimed CF Luis Robert Jr. off waivers from New York Mets. |
| Aug 31 | Mark Vientos | Status Change | New York Mets activated 1B Mark Vientos from the 10-day injured list. |
| Aug 29 | Eric Wagaman | Optioned | New York Mets optioned 1B Eric Wagaman to Syracuse Mets. |
| Aug 29 | Juan Soto | Status Change | New York Mets activated LF Juan Soto from the 10-day injured list. |
| Aug 28 | Justin Hagenman | Assigned | New York Mets sent RHP Justin Hagenman on a rehab assignment to Syracuse Mets. |
| Aug 28 | Justin Hagenman | Assigned | New York Mets sent RHP Justin Hagenman on a rehab assignment to Syracuse Mets. |
| Aug 28 | Chris Devenski | Selected | New York Mets selected the contract of RHP Chris Devenski from Syracuse Mets. |
| Aug 28 | Xzavion Curry | Optioned | New York Mets optioned RHP Xzavion Curry to Syracuse Mets. |
| Aug 28 | Jorge Polanco | Status Change | New York Mets transferred DH Jorge Polanco from the 10-day injured list to the 60-day injured list. |
| Aug 27 | Chayce McDermott | Optioned | New York Mets optioned RHP Chayce McDermott to Syracuse Mets. |
| Aug 27 | Xzavion Curry | Recalled | New York Mets recalled RHP Xzavion Curry from Syracuse Mets. |
| Aug 25 | Mark Vientos | Assigned | New York Mets sent 1B Mark Vientos on a rehab assignment to Syracuse Mets. |
| Aug 23 | Justin Hagenman | Assigned | New York Mets sent RHP Justin Hagenman on a rehab assignment to Binghamton Rumble Ponies. |
| Aug 20 | Mark Vientos | Assigned | New York Mets sent 1B Mark Vientos on a rehab assignment to Binghamton Rumble Ponies. |
| Aug 19 | Gabriel Arias | Claimed Off Waivers | Chicago Cubs claimed 3B Gabriel Arias off waivers from New York Mets. |
| Aug 19 | Jorge Polanco | Status Change | New York Mets placed DH Jorge Polanco on the 10-day injured list. Left ankle bursitis. |
| Aug 19 | Jack Weisenburger | Optioned | New York Mets optioned RHP Jack Weisenburger to Syracuse Mets. |
| Aug 19 | Eric Wagaman | Recalled | New York Mets recalled 1B Eric Wagaman from Syracuse Mets. |
| Aug 19 | Chayce McDermott | Recalled | New York Mets recalled RHP Chayce McDermott from Syracuse Mets. |
| Aug 18 | Justin Hagenman | Assigned | New York Mets sent RHP Justin Hagenman on a rehab assignment to St. Lucie Mets. |
| Aug 18 | Chayce McDermott | Optioned | New York Mets optioned RHP Chayce McDermott to Syracuse Mets. |
| Aug 18 | Austin Warren | Status Change | New York Mets activated RHP Austin Warren from the 15-day injured list. |
| Aug 18 | Justin Hagenman | Assigned | New York Mets sent RHP Justin Hagenman on a rehab assignment to St. Lucie Mets. |
| Aug 17 | Gabriel Arias | Designated for Assignment | New York Mets designated 3B Gabriel Arias for assignment. |
| Aug 17 | Christopher Morel | Selected | New York Mets selected the contract of 1B Christopher Morel from Syracuse Mets. |
| Aug 11 | Chris Devenski | Signed as Free Agent | New York Mets signed free agent RHP Chris Devenski to a minor league contract. |
| Aug 10 | Devin Williams | Status Change | New York Mets placed RHP Devin Williams on the 15-day injured list retroactive to August 8, 2026. Right shoulder strain. |
| Aug 10 | Jonathan Pintaro | Recalled | New York Mets recalled RHP Jonathan Pintaro from Syracuse Mets. |
| Aug 9 | Jack Weisenburger | Selected | New York Mets selected the contract of RHP Jack Weisenburger from Syracuse Mets. |
| Aug 9 | Xzavion Curry | Optioned | New York Mets optioned RHP Xzavion Curry to Syracuse Mets. |
| Aug 8 | Gabriel Arias | Status Change | New York Mets activated 3B Gabriel Arias. |
| Aug 8 | Eric Wagaman | Optioned | New York Mets optioned 1B Eric Wagaman to Syracuse Mets. |
| Aug 7 | Gabriel Arias | Claimed Off Waivers | New York Mets claimed 3B Gabriel Arias off waivers from Cleveland Guardians. |
| Aug 6 | Bryce Conley | Outrighted | New York Mets sent RHP Bryce Conley outright to Binghamton Rumble Ponies. |
| Aug 5 | Austin Warren | Assigned | New York Mets sent RHP Austin Warren on a rehab assignment to Syracuse Mets. |
| Aug 5 | Austin Warren | Assigned | New York Mets sent RHP Austin Warren on a rehab assignment to Syracuse Mets. |
| Aug 4 | MJ Melendez | Outrighted | New York Mets sent DH MJ Melendez outright to Syracuse Mets. |
| Aug 4 | Kevin Herget | Outrighted | New York Mets sent RHP Kevin Herget outright to Syracuse Mets. |
| Aug 4 | Bryce Conley | Designated for Assignment | New York Mets designated RHP Bryce Conley for assignment. |
| Aug 4 | Chayce McDermott | Status Change | New York Mets activated RHP Chayce McDermott. |
| Aug 4 | Dedniel Núñez | Status Change | New York Mets activated RHP Dedniel Núñez from the 60-day injured list. |
| Aug 4 | Jefry Yan | Recalled | New York Mets recalled LHP Jefry Yan from Syracuse Mets. |
| Aug 4 | Cristian Pache | Selected | New York Mets selected the contract of OF Cristian Pache from Syracuse Mets. |
| Aug 4 | Nate Lavender | Selected | New York Mets selected the contract of LHP Nate Lavender from Syracuse Mets. |
| Aug 3 | Chayce McDermott | Status Change | RHP Chayce McDermott roster status changed by New York Mets. |
| Aug 3 | Xzavion Curry | Recalled | New York Mets recalled RHP Xzavion Curry from Syracuse Mets. |
| Aug 3 | Jefferson Rojas | Trade | Chicago Cubs traded SS Jefferson Rojas to New York Mets for RHP Clay Holmes and LF Tyrone Taylor. |
| Aug 3 | Sammy Stafura | Trade | New York Mets traded RHP Luke Weaver and cash to Pittsburgh Pirates for SS Sammy Stafura. |
| Aug 3 | Chayce McDermott | Trade | New York Mets traded C Ben Rortvedt to Los Angeles Dodgers for RHP Chayce McDermott. |
| Aug 3 | Brooks Raley | Trade | New York Mets traded LHP Brooks Raley to Philadelphia Phillies for OF John Spikerman and RHP Luke Gabrysh. |
| Aug 3 | Gabe Davis | Trade | New York Mets traded RHP Huascar Brazobán to Chicago White Sox for RHP Gabe Davis and RHP Zach Franklin. |
| Aug 2 | Joey Gerber | Released | New York Mets released RHP Joey Gerber. |
| Aug 2 | MJ Melendez | Designated for Assignment | New York Mets designated DH MJ Melendez for assignment. |
| Aug 2 | Shawn Ross | Optioned | New York Mets optioned C Shawn Ross to Syracuse Mets. |
| Aug 2 | Joey Gerber | Designated for Assignment | New York Mets designated RHP Joey Gerber for assignment. |
| Aug 2 | Shawn Ross | Claimed Off Waivers | New York Mets claimed C Shawn Ross off waivers from Pittsburgh Pirates. |
| Aug 2 | Émilien Pitre | Trade | New York Mets traded RHP Freddy Peralta to Tampa Bay Rays for RHP Gary Gill Hill, OF Aidan Smith and SS Émilien Pitre. |
| Aug 2 | Jonathan Pintaro | Optioned | New York Mets optioned RHP Jonathan Pintaro to Syracuse Mets. |
| Aug 2 | Kevin Herget | Designated for Assignment | New York Mets designated RHP Kevin Herget for assignment. |
| Aug 2 | Bryce Conley | Selected | New York Mets selected the contract of RHP Bryce Conley from Binghamton Rumble Ponies. |
| Aug 2 | Robert Stock | Selected | New York Mets selected the contract of RHP Robert Stock from Syracuse Mets. |
| Aug 2 | Clay Holmes | Assigned | New York Mets sent RHP Clay Holmes on a rehab assignment to Brooklyn Cyclones. |
| Aug 1 | Xzavion Curry | Optioned | New York Mets optioned RHP Xzavion Curry to Syracuse Mets. |
| Aug 1 | Kevin Herget | Selected | New York Mets selected the contract of RHP Kevin Herget from Syracuse Mets. |
| Jul 31 | Austin Warren | Assigned | New York Mets sent RHP Austin Warren on a rehab assignment to Brooklyn Cyclones. |
| Jul 31 | Cionel Pérez | Status Change | New York Mets placed LHP Cionel Pérez on the 15-day injured list retroactive to July 30, 2026. Left forearm strain. |
| Jul 31 | Xzavion Curry | Recalled | New York Mets recalled RHP Xzavion Curry from Syracuse Mets. |
| Jul 31 | Jonathan Pintaro | Recalled | New York Mets recalled RHP Jonathan Pintaro from Syracuse Mets. |
| Jul 31 | Austin Warren | Assigned | New York Mets sent RHP Austin Warren on a rehab assignment to Brooklyn Cyclones. |
| Jul 31 | Billy Amick | Trade | New York Mets traded LHP A.J. Minter to Minnesota Twins for SS Bruin Agbayani and 3B Billy Amick. |
| Jul 30 | Jonathan Pintaro | Optioned | New York Mets optioned RHP Jonathan Pintaro to Syracuse Mets. |
| Jul 29 | Jonathan Pintaro | Status Change | New York Mets activated RHP Jonathan Pintaro. |
| Jul 29 | Jonathan Pintaro | Recalled | New York Mets recalled RHP Jonathan Pintaro from Syracuse Mets. |
| Jul 28 | Clay Holmes | Assigned | New York Mets sent RHP Clay Holmes on a rehab assignment to St. Lucie Mets. |
| Jul 28 | Clay Holmes | Assigned | New York Mets sent RHP Clay Holmes on a rehab assignment to St. Lucie Mets. |
| Jul 28 | Austin Warren | Assigned | New York Mets sent RHP Austin Warren on a rehab assignment to St. Lucie Mets. |
| Jul 25 | Eric Wagaman | Recalled | New York Mets recalled 1B Eric Wagaman from Syracuse Mets. |
| Jul 25 | Juan Soto | Status Change | New York Mets placed LF Juan Soto on the 10-day injured list. Left calf strain. |
| Jul 23 | Clay Holmes | Assigned | New York Mets sent RHP Clay Holmes on a rehab assignment to Syracuse Mets. |
| Jul 23 | Clay Holmes | Assigned | New York Mets sent RHP Clay Holmes on a rehab assignment to Syracuse Mets. |
| Jul 21 | Xzavion Curry | Optioned | New York Mets optioned RHP Xzavion Curry to Syracuse Mets. |
| Jul 21 | Daniel Duarte | Recalled | New York Mets recalled RHP Daniel Duarte from Syracuse Mets. |
| Jul 20 | Jack Toomey | Signed as Free Agent | New York Mets signed free agent OF Jack Toomey to a minor league contract. |
| Jul 20 | Reed Stallman | Signed as Free Agent | New York Mets signed free agent 1B Reed Stallman to a minor league contract. |
| Jul 20 | Jake Ogden | Signed as Free Agent | New York Mets signed free agent SS Jake Ogden to a minor league contract. |
| Jul 20 | Danny Melendez | Signed as Free Agent | New York Mets signed free agent SS Danny Melendez to a minor league contract. |
| Jul 20 | Carter Dierdorf | Signed as Free Agent | New York Mets signed free agent 1B Carter Dierdorf to a minor league contract. |
| Jul 20 | A.J. Colarusso | Signed as Free Agent | New York Mets signed free agent LHP A.J. Colarusso to a minor league contract. |
| Jul 20 | Dylan Carey | Signed as Free Agent | New York Mets signed free agent SS Dylan Carey to a minor league contract. |
| Jul 20 | Kooper Schulte | Signed | New York Mets signed SS Kooper Schulte. |
| Jul 20 | John Smith III | Signed | New York Mets signed OF John Smith III. |
| Jul 20 | Cooper Dossett | Signed | New York Mets signed RHP Cooper Dossett. |
| Jul 20 | Gavin Guidry | Signed | New York Mets signed RHP Gavin Guidry. |
| Jul 20 | Dustin Hagens Jr. | Signed | New York Mets signed RHP Dustin Hagens Jr.. |
| Jul 20 | Zach Crotchfelt | Signed | New York Mets signed LHP Zach Crotchfelt. |
| Jul 20 | Jacob Madrid | Signed | New York Mets signed C Jacob Madrid. |
| Jul 20 | AJ Krodel | Signed | New York Mets signed RHP AJ Krodel. |
| Jul 20 | Kuhio Aloy | Signed | New York Mets signed OF Kuhio Aloy. |
| Jul 20 | Nate Isler | Signed | New York Mets signed RHP Nate Isler. |
| Jul 20 | Ryan Tayman | Signed | New York Mets signed C Ryan Tayman. |
| Jul 20 | Landon Koenig | Signed | New York Mets signed RHP Landon Koenig. |
| Jul 20 | Aidan Keenan | Signed | New York Mets signed RHP Aidan Keenan. |
| Jul 20 | Alex Petrovic | Signed | New York Mets signed RHP Alex Petrovic. |
| Jul 20 | Luke McNeillie | Signed | New York Mets signed RHP Luke McNeillie. |
| Jul 20 | Shane Sdao | Signed | New York Mets signed LHP Shane Sdao. |
| Jul 20 | Aiden Robbins | Signed | New York Mets signed OF Aiden Robbins. |
| Jul 20 | Zack Short | Outrighted | New York Mets sent SS Zack Short outright to Syracuse Mets. |
| Jul 20 | Eric Wagaman | Optioned | New York Mets optioned 1B Eric Wagaman to Syracuse Mets. |
| Jul 20 | Luis Robert Jr. | Status Change | New York Mets activated CF Luis Robert Jr. from the 60-day injured list. |
| Jul 19 | Zack Short | Outrighted | New York Mets sent SS Zack Short outright to Syracuse Mets. |
| Jul 19 | Dedniel Núñez | Assigned | New York Mets sent RHP Dedniel Núñez on a rehab assignment to Syracuse Mets. |
| Jul 18 | Rafi Vazquez | Acquired | New York Mets acquired RHP Rafi Vazquez from the Southern Maryland Blue Crabs of the Atlantic League. |
| Jul 18 | Clay Holmes | Assigned | New York Mets sent RHP Clay Holmes on a rehab assignment to Brooklyn Cyclones. |
| Jul 17 | Bigey Santana | Signed as Free Agent | New York Mets signed free agent RHP Biguey Santana to a minor league contract. |
| Jul 17 | Luis Robert Jr. | Assigned | New York Mets sent CF Luis Robert Jr. on a rehab assignment to Syracuse Mets. |
| Jul 16 | Keegan O'Hearn | Signed as Free Agent | New York Mets signed free agent OF Keegan O'Hearn to a minor league contract. |
| Jul 16 | Sam Carlisle | Signed as Free Agent | New York Mets signed free agent RHP Sam Carlisle to a minor league contract. |
| Jul 16 | Marcus Semien | Status Change | New York Mets activated 2B Marcus Semien from the 10-day injured list. |
| Jul 16 | Zack Short | Designated for Assignment | New York Mets designated SS Zack Short for assignment. |
| Jul 15 | Carson Wiggins | Signed as Free Agent | New York Mets signed free agent RHP Carson Wiggins to a minor league contract. |
| Jul 15 | Dedniel Núñez | Assigned | New York Mets sent RHP Dedniel Núñez on a rehab assignment to FCL Mets. |
| Jul 14 | Dan Hammer | Outrighted | New York Mets sent RHP Dan Hammer outright to Syracuse Mets. |
| Jul 12 | Marcus Semien | Assigned | New York Mets sent 2B Marcus Semien on a rehab assignment to Binghamton Rumble Ponies. |
| Jul 12 | Marcus Semien | Assigned | New York Mets sent 2B Marcus Semien on a rehab assignment to Binghamton Rumble Ponies. |
| Jul 12 | Marcus Semien | Assigned | New York Mets sent 2B Marcus Semien on a rehab assignment to Binghamton Rumble Ponies. |
| Jul 12 | Zac Thornton | Recalled | New York Mets recalled LHP Zach Thornton from Syracuse Mets. |
| Jul 12 | Tobias Myers | Optioned | New York Mets optioned RHP Tobias Myers to Syracuse Mets. |
| Jul 11 | Jared Oliva | Released | New York Mets released CF Jared Oliva. |
| Jul 11 | Matt Seelinger | Outrighted | New York Mets sent RHP Matt Seelinger outright to Syracuse Mets. |
| Jul 10 | Zack Short | Selected | New York Mets selected the contract of SS Zack Short from Syracuse Mets. |
| Jul 10 | Mark Vientos | Status Change | New York Mets placed 1B Mark Vientos on the 10-day injured list. Right hand fracture. |
| Jul 10 | Dan Hammer | Designated for Assignment | New York Mets designated RHP Dan Hammer for assignment. |
| Jul 10 | Tobias Myers | Recalled | New York Mets recalled RHP Tobias Myers from Syracuse Mets. |
| Jul 9 | Alex Carrillo | Released | New York Mets released RHP Alex Carrillo. |
| Jul 9 | Guillo Zuñiga | Outrighted | New York Mets sent RHP Guillo Zuñiga outright to Syracuse Mets. |
| Jul 9 | Jared Oliva | Designated for Assignment | New York Mets designated CF Jared Oliva for assignment. |
| Jul 9 | Tobias Myers | Optioned | New York Mets optioned RHP Tobias Myers to Syracuse Mets. |
| Jul 9 | Dan Hammer | Selected | New York Mets selected the contract of RHP Dan Hammer from Syracuse Mets. |
| Jul 8 | Luis Robert Jr. | Assigned | New York Mets sent CF Luis Robert Jr. on a rehab assignment to Binghamton Rumble Ponies. |
| Jul 8 | Dedniel Núñez | Assigned | New York Mets sent RHP Dedniel Núñez on a rehab assignment to Syracuse Mets. |
| Jul 8 | Matt Seelinger | Designated for Assignment | New York Mets designated RHP Matt Seelinger for assignment. |
| Jul 8 | Austin Warren | Status Change | New York Mets placed RHP Austin Warren on the 15-day injured list. Right forearm strain. |
| Jul 8 | Tobias Myers | Recalled | New York Mets recalled RHP Tobias Myers from Syracuse Mets. |
| Jul 8 | Xzavion Curry | Selected | New York Mets selected the contract of RHP Xzavion Curry from Syracuse Mets. |
| Jul 7 | Jorge Polanco | Status Change | New York Mets activated DH Jorge Polanco from the 60-day injured list. |
| Jul 7 | Jorge Polanco | Status Change | New York Mets activated 1B Jorge Polanco from the 60-day injured list. |
| Jul 7 | Alex Carrillo | Designated for Assignment | New York Mets designated RHP Alex Carrillo for assignment. |
| Jul 7 | Guillo Zuñiga | Designated for Assignment | New York Mets designated RHP Guillo Zuñiga for assignment. |
| Jul 7 | Ronny Mauricio | Optioned | New York Mets optioned SS Ronny Mauricio to Syracuse Mets. |
| Jul 7 | Matt Seelinger | Selected | New York Mets selected the contract of RHP Matt Seelinger from Syracuse Mets. |
| Jul 5 | Matt Seelinger | Trade | Detroit Tigers traded RHP Matt Seelinger to New York Mets for cash. |
| Jul 5 | Joey Gerber | Optioned | New York Mets optioned RHP Joey Gerber to Syracuse Mets. |
| Jul 5 | Guillo Zuñiga | Selected | New York Mets selected the contract of RHP Guillo Zuñiga from Syracuse Mets. |
| Jul 2 | Jefry Yan | Status Change | New York Mets reassigned LHP Jefry Yan to the minor leagues. |
| Jul 2 | Dedniel Núñez | Assigned | New York Mets sent RHP Dedniel Núñez on a rehab assignment to Binghamton Rumble Ponies. |
| Jul 2 | Dedniel Núñez | Assigned | New York Mets sent RHP Dedniel Núñez on a rehab assignment to Binghamton Rumble Ponies. |
| Jul 2 | Jefry Yan | Optioned | New York Mets optioned LHP Jefry Yan to Syracuse Mets. |
| Jul 2 | Jefry Yan | Selected | New York Mets selected the contract of LHP Jefry Yan from Syracuse Mets. |
| Jul 1 | Christopher Morel | Signed as Free Agent | New York Mets signed free agent 1B Christopher Morel to a minor league contract. |
| Jun 30 | Luis Robert Jr. | Assigned | New York Mets sent CF Luis Robert Jr. on a rehab assignment to Syracuse Mets. |
| Jun 30 | Luis Robert Jr. | Assigned | New York Mets sent CF Luis Robert Jr. on a rehab assignment to Syracuse Mets. |
| Jun 29 | Tobias Myers | Optioned | New York Mets optioned RHP Tobias Myers to Syracuse Mets. |
| Jun 29 | Joey Gerber | Recalled | New York Mets recalled RHP Joey Gerber from Syracuse Mets. |
| Jun 27 | Zack Short | Outrighted | New York Mets sent SS Zack Short outright to Syracuse Mets. |
| Jun 27 | Jorge Polanco | Assigned | New York Mets sent 1B Jorge Polanco on a rehab assignment to Syracuse Mets. |
| Jun 27 | Zac Thornton | Optioned | New York Mets optioned LHP Zach Thornton to Syracuse Mets. |
| Jun 26 | Tyrone Taylor | Status Change | New York Mets activated LF Tyrone Taylor from the 10-day injured list. |
| Jun 26 | Daniel Duarte | Optioned | New York Mets optioned RHP Daniel Duarte to Syracuse Mets. |
| Jun 26 | MJ Melendez | Optioned | New York Mets optioned DH MJ Melendez to Syracuse Mets. |
| Jun 26 | Tyrone Taylor | Status Change | New York Mets activated CF Tyrone Taylor from the 10-day injured list. |
| Jun 26 | Zac Thornton | Recalled | New York Mets recalled LHP Zach Thornton from Syracuse Mets. |
| Jun 25 | Dedniel Núñez | Assigned | New York Mets sent RHP Dedniel Núñez on a rehab assignment to St. Lucie Mets. |
| Jun 25 | Jonathan Pintaro | Optioned | New York Mets optioned RHP Jonathan Pintaro to Syracuse Mets. |
| Jun 25 | Ronny Mauricio | Recalled | New York Mets recalled SS Ronny Mauricio from Syracuse Mets. |
| Jun 25 | Daniel Duarte | Recalled | New York Mets recalled RHP Daniel Duarte from Syracuse Mets. |
| Jun 25 | Marcus Semien | Status Change | New York Mets placed 2B Marcus Semien on the 10-day injured list. Left hip flexor strain. |
| Jun 25 | Cole Mathis | Trade | New York Mets traded LHP David Peterson to Chicago Cubs for 3B Cole Mathis. |
| Jun 24 | Cesar Morales | Signed as Free Agent | New York Mets signed free agent LHP Cesar Morales to a minor league contract. |
| Jun 24 | Ronny Mauricio | Optioned | New York Mets optioned SS Ronny Mauricio to Syracuse Mets. |
| Jun 24 | Ronny Mauricio | Status Change | New York Mets activated SS Ronny Mauricio from the 10-day injured list. |
| Jun 24 | Zack Short | Designated for Assignment | New York Mets designated SS Zack Short for assignment. |
| Jun 24 | Francisco Lindor | Status Change | New York Mets activated SS Francisco Lindor from the 10-day injured list. |
| Jun 24 | Jonathan Pintaro | Recalled | New York Mets recalled RHP Jonathan Pintaro from Syracuse Mets. |
| Jun 23 | Jared Oliva | Optioned | New York Mets optioned CF Jared Oliva to Syracuse Mets. |
| Jun 23 | Jared Oliva | Claimed Off Waivers | New York Mets claimed CF Jared Oliva off waivers from San Francisco Giants. |
| Jun 21 | Francisco Lindor | Assigned | New York Mets sent SS Francisco Lindor on a rehab assignment to Syracuse Mets. |
| Jun 21 | Taylor Darden | Acquired | New York Mets acquired 2B Taylor Darden from the Southern Maryland Blue Crabs of the Atlantic League. |
| Jun 21 | Tyrone Taylor | Assigned | New York Mets sent CF Tyrone Taylor on a rehab assignment to Syracuse Mets. |
| Jun 21 | Francisco Lindor | Assigned | New York Mets sent SS Francisco Lindor on a rehab assignment to Syracuse Mets. |
| Jun 20 | Ronny Mauricio | Assigned | New York Mets sent SS Ronny Mauricio on a rehab assignment to Syracuse Mets. |
| Jun 20 | Ronny Mauricio | Assigned | New York Mets sent SS Ronny Mauricio on a rehab assignment to Syracuse Mets. |
| Jun 19 | Tyrone Taylor | Assigned | New York Mets sent CF Tyrone Taylor on a rehab assignment to Binghamton Rumble Ponies. |
| Jun 19 | Francisco Lindor | Assigned | New York Mets sent SS Francisco Lindor on a rehab assignment to Binghamton Rumble Ponies. |
| Jun 18 | Vidal Bruján | Outrighted | New York Mets sent SS Vidal Bruján outright to Syracuse Mets. |
| Jun 18 | Ronny Mauricio | Assigned | New York Mets sent SS Ronny Mauricio on a rehab assignment to St. Lucie Mets. |
| Jun 16 | Nick Lucky | Acquired | New York Mets acquired SS Nick Lucky from the Lancaster Stormers of the Atlantic League. |
| Jun 16 | Zack Short | Status Change | New York Mets activated SS Zack Short. |
| Jun 16 | Vidal Bruján | Designated for Assignment | New York Mets designated SS Vidal Bruján for assignment. |
| Jun 16 | Jonathan Pintaro | Optioned | New York Mets optioned RHP Jonathan Pintaro to Syracuse Mets. |
| Jun 16 | Kodai Senga | Status Change | New York Mets activated RHP Kodai Senga from the 15-day injured list. |
| Jun 15 | Zack Short | Claimed Off Waivers | New York Mets claimed SS Zack Short off waivers from Detroit Tigers. |
| Jun 15 | Jorge Polanco | Status Change | New York Mets placed 1B Jorge Polanco on the 60-day injured list. Right wrist contusion. |
| Jun 15 | Jonathan Pintaro | Recalled | New York Mets recalled RHP Jonathan Pintaro from Syracuse Mets. |
| Jun 15 | Tobias Myers | Recalled | New York Mets recalled RHP Tobias Myers from Syracuse Mets. |
| Jun 15 | Daniel Duarte | Optioned | New York Mets optioned RHP Daniel Duarte to Syracuse Mets. |
| Jun 15 | Christian Scott | Status Change | New York Mets placed RHP Christian Scott on the 15-day injured list retroactive to June 12, 2026. Right hip impingement. |
| Jun 11 | Victor Gallegos | Signed as Free Agent | New York Mets signed free agent RHP Victor Gallegos to a minor league contract. |
| Jun 11 | Kodai Senga | Assigned | New York Mets sent RHP Kodai Senga on a rehab assignment to Binghamton Rumble Ponies. |
| Jun 11 | Jonathan Pintaro | Optioned | New York Mets optioned RHP Jonathan Pintaro to Syracuse Mets. |
| Jun 11 | Daniel Duarte | Recalled | New York Mets recalled RHP Daniel Duarte from Syracuse Mets. |
| Jun 10 | Angel Ozuna | Signed as Free Agent | New York Mets signed free agent SS Angel Osuna to a minor league contract. |
| Jun 10 | Joey Gerber | Optioned | New York Mets optioned RHP Joey Gerber to Syracuse Mets. |
| Jun 10 | Jonathan Pintaro | Recalled | New York Mets recalled RHP Jonathan Pintaro from Syracuse Mets. |
| Jun 9 | Jack Scanlon | Acquired | New York Mets acquired C Jack Scanlon from the New York Boulders of the Frontier League. |
| Jun 9 | Hayden Senger | Optioned | New York Mets optioned C Hayden Senger to Syracuse Mets. |
| Jun 3 | Jonah Tong | Optioned | New York Mets optioned RHP Jonah Tong to Syracuse Mets. |
| Jun 3 | Joey Gerber | Recalled | New York Mets recalled RHP Joey Gerber from Syracuse Mets. |
| Jun 2 | Esteban Mejia | Signed as Free Agent | New York Mets signed free agent RHP Esteban Mejia to a minor league contract. |
| Jun 2 | Wranigher Navas | Signed as Free Agent | New York Mets signed free agent RHP Wranigher Navas to a minor league contract. |
| Jun 2 | Christian Arroyo | Signed as Free Agent | New York Mets signed free agent 2B Christian Arroyo to a minor league contract. |
| Jun 2 | Jorge Polanco | Assigned | New York Mets sent 1B Jorge Polanco on a rehab assignment to Syracuse Mets. |
| Jun 1 | Francisco Alvarez | Assigned | New York Mets sent C Francisco Alvarez on a rehab assignment to Syracuse Mets. |
| May 30 | Anderson Severino | Designated for Assignment | New York Mets designated LHP Anderson Severino for assignment. |
| May 30 | Tobias Myers | Optioned | New York Mets optioned RHP Tobias Myers to Syracuse Mets. |
| May 30 | Cionel Pérez | Selected | New York Mets selected the contract of LHP Cionel Pérez from Syracuse Mets. |
| May 28 | Kodai Senga | Assigned | New York Mets sent RHP Kodai Senga on a rehab assignment to Syracuse Mets. |
| May 28 | Randiel Vicente | Signed as Free Agent | New York Mets signed free agent RHP Randiel Vicente to a minor league contract. |
| May 28 | Jackson Hauge | Signed as Free Agent | New York Mets signed free agent 1B Jackson Hauge to a minor league contract. |
| May 28 | Kodai Senga | Assigned | New York Mets sent RHP Kodai Senga on a rehab assignment to Syracuse Mets. |
| May 27 | Jorge Polanco | Assigned | New York Mets sent 1B Jorge Polanco on a rehab assignment to Binghamton Rumble Ponies. |
| May 26 | Enmanuel Feliz | Signed as Free Agent | New York Mets signed free agent RHP Enmanuel Feliz to a minor league contract. |
| May 26 | Luis Robert Jr. | Status Change | New York Mets transferred CF Luis Robert Jr. from the 10-day injured list to the 60-day injured list. Lumbar spine disc herniation. |
| May 26 | Eric Wagaman | Selected | New York Mets selected the contract of 1B Eric Wagaman from Syracuse Mets. |
| May 26 | Tyrone Taylor | Status Change | New York Mets placed CF Tyrone Taylor on the 10-day injured list. Right hip flexor strain. |
| May 26 | Jonathan Pintaro | Optioned | New York Mets optioned RHP Jonathan Pintaro to Syracuse Mets. |
| May 26 | Nick Morabito | Optioned | New York Mets optioned LF Nick Morabito to Syracuse Mets. |
| May 26 | Jared Young | Status Change | New York Mets activated 1B Jared Young from the 10-day injured list. |
| May 26 | A.J. Minter | Status Change | New York Mets activated LHP A.J. Minter from the 60-day injured list. |
| May 24 | Craig Kimbrel | Outrighted | New York Mets sent RHP Craig Kimbrel outright to Syracuse Mets. |
| May 23 | Zac Thornton | Optioned | New York Mets optioned LHP Zach Thornton to Syracuse Mets. |
| May 23 | Jonathan Pintaro | Recalled | New York Mets recalled RHP Jonathan Pintaro from Syracuse Mets. |
| May 22 | Austin Slater | Outrighted | New York Mets sent RF Austin Slater outright to Syracuse Mets. |
| May 22 | Kodai Senga | Assigned | New York Mets sent RHP Kodai Senga on a rehab assignment to St. Lucie Mets. |
| May 22 | Jonah Tong | Recalled | New York Mets recalled RHP Jonah Tong from Syracuse Mets. |
| May 22 | Craig Kimbrel | Designated for Assignment | New York Mets designated RHP Craig Kimbrel for assignment. |
| May 20 | Daniel Duarte | Optioned | New York Mets optioned RHP Daniel Duarte to Syracuse Mets. |
| May 20 | Zac Thornton | Selected | New York Mets selected the contract of LHP Zach Thornton from Syracuse Mets. |
| May 20 | Nick Morabito | Number Change | LF Nick Morabito changed number to 55. |
| May 19 | Jared Young | Assigned | New York Mets sent 1B Jared Young on a rehab assignment to Syracuse Mets. |
| May 19 | Nick Morabito | Recalled | New York Mets recalled CF Nick Morabito from Syracuse Mets. |
| May 19 | Austin Slater | Designated for Assignment | New York Mets designated RF Austin Slater for assignment. |
| May 19 | Clay Holmes | Status Change | New York Mets transferred RHP Clay Holmes from the 15-day injured list to the 60-day injured list. Right fibula fracture. |
| May 19 | Jared Young | Assigned | New York Mets sent 1B Jared Young on a rehab assignment to New York Mets. |
| May 18 | Anderson Severino | Optioned | New York Mets optioned LHP Anderson Severino to Syracuse Mets. |
| May 18 | Anderson Severino | Selected | New York Mets selected the contract of LHP Anderson Severino from Syracuse Mets. |
| May 18 | Daniel Duarte | Selected | New York Mets selected the contract of RHP Daniel Duarte from Syracuse Mets. |
| May 18 | Joey Gerber | Optioned | New York Mets optioned RHP Joey Gerber to Syracuse Mets. |
| May 18 | A.J. Minter | Status Change | New York Mets placed LHP A.J. Minter on the 60-day injured list. Left lat surgery. |
| May 16 | Clay Holmes | Status Change | New York Mets placed RHP Clay Holmes on the 15-day injured list. Right fibula fracture. |
| May 16 | Joey Gerber | Recalled | New York Mets recalled RHP Joey Gerber from Syracuse Mets. |
| May 15 | Jared Young | Assigned | New York Mets sent 1B Jared Young on a rehab assignment to St. Lucie Mets. |
| May 15 | Andy Ibáñez | Outrighted | New York Mets sent 2B Andy Ibáñez outright to Syracuse Mets. |
| May 15 | Max Green | Signed as Free Agent | New York Mets signed free agent LHP Max Green to a minor league contract. |
| May 15 | Jared Young | Assigned | New York Mets sent 1B Jared Young on a rehab assignment to St. Lucie Mets. |
| May 14 | Jaylen Palmer | Signed as Free Agent | New York Mets signed free agent SS Jaylen Palmer to a minor league contract. |
| May 13 | Francisco Alvarez | Status Change | New York Mets placed C Francisco Alvarez on the 10-day injured list. Right meniscus tear. |
| May 13 | Hayden Senger | Recalled | New York Mets recalled C Hayden Senger from Syracuse Mets. |
| May 12 | Nick Roselli | Signed as Free Agent | New York Mets signed free agent 2B Nick Roselli to a minor league contract. |
| May 12 | A.J. Ewing | Selected | New York Mets selected the contract of LF A.J. Ewing from Syracuse Mets. |
| May 12 | Andy Ibáñez | Designated for Assignment | New York Mets designated 2B Andy Ibáñez for assignment. |
| May 10 | Eric Wagaman | Outrighted | New York Mets sent 1B Eric Wagaman outright to Syracuse Mets. |
| May 10 | Joey Gerber | Optioned | New York Mets optioned RHP Joey Gerber to Syracuse Mets. |
| May 10 | Joey Gerber | Status Change | New York Mets activated RHP Joey Gerber from the 15-day injured list. |
| May 9 | Jesus Minaya | Signed as Free Agent | New York Mets signed free agent SS Jesus Minaya to a minor league contract. |
| May 9 | Cionel Pérez | Signed as Free Agent | New York Mets signed free agent LHP Cionel Pérez to a minor league contract. |
| May 9 | Brady Miller | Signed as Free Agent | New York Mets signed free agent RHP Brady Miller to a minor league contract. |
| May 9 | Xzavion Curry | Signed as Free Agent | New York Mets signed free agent RHP Xzavion Curry to a minor league contract. |
| May 6 | Josbel Torrez | Signed as Free Agent | New York Mets signed free agent RHP Josbel Torrez to a minor league contract. |
| May 5 | Guillo Zuñiga | Signed as Free Agent | New York Mets signed free agent RHP Guillo Zuñiga to a minor league contract. |
| May 3 | Vidal Bruján | Status Change | New York Mets activated SS Vidal Bruján. |
| May 3 | Carl Edwards Jr. | Outrighted | New York Mets sent RHP Carl Edwards Jr. outright to Syracuse Mets. |
| May 3 | Vidal Bruján | Selected | New York Mets selected the contract of 3B Vidal Bruján from Syracuse Mets. |
| May 3 | Eric Wagaman | Designated for Assignment | New York Mets designated 1B Eric Wagaman for assignment. |
| May 3 | Ronny Mauricio | Status Change | New York Mets placed SS Ronny Mauricio on the 10-day injured list. Left thumb fracture. |
| May 2 | Jack Weisenburger | Signed as Free Agent | New York Mets signed free agent RHP Jack Weisenburger to a minor league contract. |
| May 1 | Andy Ibáñez | Status Change | New York Mets activated 2B Andy Ibáñez. |
| May 1 | Eric Wagaman | Optioned | New York Mets optioned 1B Eric Wagaman to Syracuse Mets. |
| Apr 30 | Andy Ibáñez | Claimed Off Waivers | New York Mets claimed 2B Andy Ibáñez off waivers from Athletics. |
| Apr 30 | Luis Robert Jr. | Status Change | New York Mets placed CF Luis Robert Jr. on the 10-day injured list retroactive to April 27, 2026. Lumbar spine disc herniation. |
| Apr 30 | Eric Wagaman | Recalled | New York Mets recalled 1B Eric Wagaman from Syracuse Mets. |
| Apr 30 | Austin Warren | Recalled | New York Mets recalled RHP Austin Warren from Syracuse Mets. |
| Apr 30 | Carl Edwards Jr. | Designated for Assignment | New York Mets designated RHP Carl Edwards Jr. for assignment. |
| Apr 29 | Tommy Pham | Outrighted | New York Mets sent LF Tommy Pham outright to Syracuse Mets. |
| Apr 29 | Jamari Baylor | Signed as Free Agent | New York Mets signed free agent SS Jamari Baylor to a minor league contract. |
| Apr 28 | Joey Gerber | Assigned | New York Mets sent RHP Joey Gerber on a rehab assignment to Syracuse Mets. |
| Apr 28 | Christian Scott | Recalled | New York Mets recalled RHP Christian Scott from Syracuse Mets. |
| Apr 28 | Kodai Senga | Status Change | New York Mets placed RHP Kodai Senga on the 15-day injured list retroactive to April 27, 2026. Lumbar spine inflammation. |
| Apr 27 | TT Bowens | Signed as Free Agent | New York Mets signed free agent 1B TT Bowens to a minor league contract. |
| Apr 27 | Eric Wagaman | Optioned | New York Mets optioned 1B Eric Wagaman to Syracuse Mets. |
| Apr 27 | Eric Wagaman | Claimed Off Waivers | New York Mets claimed 1B Eric Wagaman off waivers from Minnesota Twins. |
| Apr 27 | Tommy Pham | Designated for Assignment | New York Mets designated LF Tommy Pham for assignment. |
| Apr 27 | Austin Slater | Signed as Free Agent | New York Mets signed free agent LF Austin Slater. |
| Apr 27 | Austin Warren | Optioned | New York Mets optioned RHP Austin Warren to Syracuse Mets. |
| Apr 26 | Austin Warren | Recalled | New York Mets recalled RHP Austin Warren from Syracuse Mets. |
| Apr 25 | Joey Gerber | Assigned | New York Mets sent RHP Joey Gerber on a rehab assignment to St. Lucie Mets. |
| Apr 24 | Christian Scott | Optioned | New York Mets optioned RHP Christian Scott to Syracuse Mets. |
| Apr 24 | Carl Edwards Jr. | Selected | New York Mets selected the contract of RHP Carl Edwards Jr. from Syracuse Mets. |
| Apr 23 | Austin Warren | Optioned | New York Mets optioned RHP Austin Warren to Syracuse Mets. |
| Apr 23 | Christian Scott | Recalled | New York Mets recalled RHP Christian Scott from Syracuse Mets. |
| Apr 23 | Ronny Mauricio | Recalled | New York Mets recalled 3B Ronny Mauricio from Syracuse Mets. |
| Apr 23 | Francisco Lindor | Status Change | New York Mets placed SS Francisco Lindor on the 10-day injured list. Left calf strain. |
| Apr 22 | Juan Soto | Status Change | New York Mets activated RF Juan Soto from the 10-day injured list. |
| Apr 22 | Hayden Senger | Optioned | New York Mets optioned C Hayden Senger to Syracuse Mets. |
| Apr 22 | A.J. Minter | Assigned | New York Mets sent LHP A.J. Minter on a rehab assignment to Syracuse Mets. |
| Apr 21 | Derlin Rojas | Signed as Free Agent | New York Mets signed free agent RHP Derlin Rojas to a minor league contract. |
| Apr 18 | Hayden Senger | Recalled | New York Mets recalled C Hayden Senger from Syracuse Mets. |
| Apr 18 | Jorge Polanco | Status Change | New York Mets placed 2B Jorge Polanco on the 10-day injured list retroactive to April 15, 2026. Right wrist contusion. |
| Apr 16 | Carson Benge | Status Change | New York Mets activated RF Carson Benge. |
| Apr 16 | A.J. Minter | Assigned | New York Mets sent LHP A.J. Minter on a rehab assignment to Brooklyn Cyclones. |
| Apr 16 | A.J. Minter | Assigned | New York Mets sent LHP A.J. Minter on a rehab assignment to Brooklyn Cyclones. |
| Apr 16 | Richard Lovelady | Trade | New York Mets traded LHP Richard Lovelady to Washington Nationals for cash. |
| Apr 16 | MJ Melendez | Number Change | LF MJ Melendez changed number to 1. |
| Apr 16 | Francisco Alvarez | Number Change | C Francisco Alvarez changed number to 4. |
| Apr 16 | Clay Holmes | Number Change | RHP Clay Holmes changed number to 35. |
| Apr 16 | Bo Bichette | Number Change | SS Bo Bichette changed number to 19. |
| Apr 16 | Brett Baty | Number Change | 3B Brett Baty changed number to 7. |
| Apr 16 | Huascar Brazobán | Number Change | RHP Huascar Brazobán changed number to 43. |
| Apr 16 | Carson Benge | Number Change | OF Carson Benge changed number to 3. |
| Apr 16 | Craig Kimbrel | Number Change | RHP Craig Kimbrel changed number to 46. |
| Apr 16 | Francisco Lindor | Number Change | SS Francisco Lindor changed number to 12. |
| Apr 16 | Nolan McLean | Number Change | RHP Nolan McLean changed number to 26. |
| Apr 16 | Tobias Myers | Number Change | RHP Tobias Myers changed number to 32. |
| Apr 16 | Sean Manaea | Number Change | LHP Sean Manaea changed number to 59. |
| Apr 16 | Freddy Peralta | Number Change | RHP Freddy Peralta changed number to 51. |
| Apr 16 | Brooks Raley | Number Change | LHP Brooks Raley changed number to 25. |
| Apr 16 | David Peterson | Number Change | LHP David Peterson changed number to 23. |
| Apr 16 | Luis Robert Jr. | Number Change | CF Luis Robert Jr. changed number to 88. |
| Apr 16 | Jorge Polanco | Number Change | 2B Jorge Polanco changed number to 11. |
| Apr 16 | Tommy Pham | Number Change | LF Tommy Pham changed number to 39. |
| Apr 16 | Tyrone Taylor | Number Change | CF Tyrone Taylor changed number to 28. |
| Apr 16 | Marcus Semien | Number Change | 2B Marcus Semien changed number to 10. |
| Apr 16 | Kodai Senga | Number Change | RHP Kodai Senga changed number to 34. |
| Apr 16 | Mark Vientos | Number Change | 3B Mark Vientos changed number to 27. |
| Apr 16 | Luis Torrens | Number Change | C Luis Torrens changed number to 13. |
| Apr 16 | Austin Warren | Number Change | RHP Austin Warren changed number to 44. |
| Apr 16 | Luke Weaver | Number Change | RHP Luke Weaver changed number to 30. |
| Apr 16 | Devin Williams | Number Change | RHP Devin Williams changed number to 38. |
| Apr 15 | Jared Young | Status Change | New York Mets placed LF Jared Young on the 10-day injured list retroactive to April 13, 2026. Left meniscus tear. |
| Apr 15 | MJ Melendez | Recalled | New York Mets recalled LF MJ Melendez from Syracuse Mets. |
| Apr 15 | David Peterson | Number Change | LHP David Peterson changed number to 42. |
| Apr 15 | Austin Warren | Number Change | RHP Austin Warren changed number to 42. |
| Apr 15 | Jorge Polanco | Number Change | 2B Jorge Polanco changed number to 42. |
| Apr 15 | Clay Holmes | Number Change | RHP Clay Holmes changed number to 42. |
| Apr 15 | Francisco Lindor | Number Change | SS Francisco Lindor changed number to 42. |
| Apr 15 | Francisco Alvarez | Number Change | C Francisco Alvarez changed number to 42. |
| Apr 15 | Craig Kimbrel | Number Change | RHP Craig Kimbrel changed number to 42. |
| Apr 15 | Luis Torrens | Number Change | C Luis Torrens changed number to 42. |
| Apr 15 | Luis Robert Jr. | Number Change | CF Luis Robert Jr. changed number to 42. |
| Apr 15 | Luke Weaver | Number Change | RHP Luke Weaver changed number to 42. |
| Apr 15 | Tommy Pham | Number Change | LF Tommy Pham changed number to 42. |
| Apr 15 | Tobias Myers | Number Change | RHP Tobias Myers changed number to 42. |
| Apr 15 | Mark Vientos | Number Change | 3B Mark Vientos changed number to 42. |
| Apr 15 | Marcus Semien | Number Change | 2B Marcus Semien changed number to 42. |
| Apr 15 | Freddy Peralta | Number Change | RHP Freddy Peralta changed number to 42. |
| Apr 15 | Huascar Brazobán | Number Change | RHP Huascar Brazobán changed number to 42. |
| Apr 15 | Brooks Raley | Number Change | LHP Brooks Raley changed number to 42. |
| Apr 15 | Brett Baty | Number Change | 3B Brett Baty changed number to 42. |
| Apr 15 | Nolan McLean | Number Change | RHP Nolan McLean changed number to 42. |
| Apr 15 | Sean Manaea | Number Change | LHP Sean Manaea changed number to 42. |
| Apr 15 | Bo Bichette | Number Change | SS Bo Bichette changed number to 42. |
| Apr 15 | Carson Benge | Number Change | OF Carson Benge changed number to 42. |
| Apr 15 | Tyrone Taylor | Number Change | CF Tyrone Taylor changed number to 42. |
| Apr 15 | Devin Williams | Number Change | RHP Devin Williams changed number to 42. |
| Apr 15 | Kodai Senga | Number Change | RHP Kodai Senga changed number to 42. |
| Apr 14 | Luis García | Released | New York Mets released RHP Luis García. |
| Apr 14 | Joey Gerber | Status Change | New York Mets placed RHP Joey Gerber on the 15-day injured list. Right finger blister. |
| Apr 14 | Austin Warren | Recalled | New York Mets recalled RHP Austin Warren from Syracuse Mets. |
| Apr 13 | Jared Young | Status Change | New York Mets placed 1B Jared Young on the 10-day injured list. Left meniscus tear. |
| Apr 13 | Ronny Mauricio | Optioned | New York Mets optioned 3B Ronny Mauricio to Syracuse Mets. |
| Apr 13 | Tommy Pham | Selected | New York Mets selected the contract of LF Tommy Pham from St. Lucie Mets. |
| Apr 12 | Luis García | Designated for Assignment | New York Mets designated RHP Luis García for assignment. |
| Apr 12 | Joey Gerber | Recalled | New York Mets recalled RHP Joey Gerber from Syracuse Mets. |
| Apr 11 | Richard Lovelady | Designated for Assignment | New York Mets designated LHP Richard Lovelady for assignment. |
| Apr 11 | Craig Kimbrel | Selected | New York Mets selected the contract of RHP Craig Kimbrel from St. Lucie Mets. |
| Apr 9 | A.J. Minter | Assigned | New York Mets sent LHP A.J. Minter on a rehab assignment to St. Lucie Mets. |
| Apr 9 | A.J. Minter | Assigned | New York Mets sent LHP A.J. Minter on a rehab assignment to St. Lucie Mets. |
| Apr 6 | Tyrone Taylor | Number Change | CF Tyrone Taylor changed number to 28. |
| Apr 6 | Ronny Mauricio | Recalled | New York Mets recalled 3B Ronny Mauricio from Syracuse Mets. |
| Apr 6 | Juan Soto | Status Change | New York Mets placed RF Juan Soto on the 10-day injured list retroactive to April 4, 2026. Right calf strain. |
| Apr 4 | Luke Jackson | Status Change | RHP Luke Jackson roster status changed by New York Mets. |
| Apr 4 | Luke Jackson | Signed as Free Agent | New York Mets signed free agent RHP Luke Jackson to a minor league contract. |
| Mar 27 | Tommy Pham | Signed as Free Agent | New York Mets signed free agent LF Tommy Pham to a minor league contract. |
| Mar 27 | Vidal Bruján | Outrighted | New York Mets sent 3B Vidal Bruján outright to Syracuse Mets. |
| Mar 27 | Ben Rortvedt | Outrighted | New York Mets sent C Ben Rortvedt outright to Syracuse Mets. |
| Mar 27 | Bryan Hudson | Claimed Off Waivers | Chicago White Sox claimed LHP Bryan Hudson off waivers from New York Mets. |
| Mar 26 | — | Number Change | LHP Richard Lovelady changed number to 55. |
| Mar 25 | Cristopher Del Orbe | Signed as Free Agent | New York Mets signed free agent RHP Cristopher Del Orbe to a minor league contract. |
| Mar 25 | Carson Benge | Selected | New York Mets selected the contract of OF Carson Benge from Syracuse Mets. |
| Mar 25 | A.J. Minter | Status Change | New York Mets placed LHP A.J. Minter on the 15-day injured list retroactive to March 22, 2026. Left lat surgery. |
| Mar 25 | Ben Rortvedt | Designated for Assignment | New York Mets designated C Ben Rortvedt for assignment. |
| Mar 25 | Bryan Hudson | Designated for Assignment | New York Mets designated LHP Bryan Hudson for assignment. |
| Mar 25 | Vidal Bruján | Designated for Assignment | New York Mets designated 3B Vidal Bruján for assignment. |
| Mar 24 | Carson Benge | Number Change | OF Carson Benge changed number to 3. |
| Mar 22 | Austin Barnes | Released | New York Mets released C Austin Barnes. |
| Mar 22 | Chase Meggers | Assigned | C Chase Meggers assigned to New York Mets. |
| Mar 21 | Dakota Hawkins | Assigned | RHP Dakota Hawkins assigned to New York Mets. |
| Mar 21 | Will Watson | Assigned | RHP Will Watson assigned to New York Mets. |
| Mar 21 | Parker Carlson | Assigned | RHP Parker Carlson assigned to New York Mets. |
| Mar 21 | Hayden Senger | Optioned | New York Mets optioned C Hayden Senger to Syracuse Mets. |
| Mar 21 | Joander Suarez | Assigned | RHP Joander Suarez assigned to New York Mets. |
| Mar 20 | Alejandro Urias | Signed as Free Agent | New York Mets signed free agent C Alejandro Urias to a minor league contract. |
| Mar 20 | Austin Warren | Optioned | New York Mets optioned RHP Austin Warren to Syracuse Mets. |
| Mar 20 | Tyler McLoughlin | Assigned | RHP Tyler McLoughlin assigned to New York Mets. |
| Mar 19 | Ronny Mauricio | Optioned | New York Mets optioned 3B Ronny Mauricio to Syracuse Mets. |
| Mar 19 | Joey Gerber | Optioned | New York Mets optioned RHP Joey Gerber to Syracuse Mets. |
| Mar 19 | Joey Gerber | Optioned | New York Mets optioned RHP Joey Gerber to Syracuse Mets. |
| Mar 19 | Ronny Mauricio | Optioned | New York Mets optioned 3B Ronny Mauricio to Syracuse Mets. |
| Mar 17 | Sam Biller | Signed as Free Agent | New York Mets signed free agent OF Sam Biller to a minor league contract. |
| Mar 17 | Zach Peek | Status Change | RHP Zach Peek roster status changed by New York Mets. |
| Mar 17 | Zach Peek | Assigned | RHP Zach Peek assigned to New York Mets. |
| Mar 17 | Christian Scott | Optioned | New York Mets optioned RHP Christian Scott to Syracuse Mets. |
| Mar 17 | MJ Melendez | Optioned | New York Mets optioned LF MJ Melendez to Syracuse Mets. |
| Mar 16 | Kevin Gowdy | Signed as Free Agent | New York Mets signed free agent RHP Kevin Gowdy to a minor league contract. |
| Mar 16 | Felix Cepeda | Signed as Free Agent | New York Mets signed free agent RHP Felix Cepeda to a minor league contract. |
| Mar 16 | Eddinson Paulino | Signed as Free Agent | New York Mets signed free agent 3B Eddinson Paulino to a minor league contract. |
| Mar 16 | Roybert Herrera | Assigned | 1B Roybert Herrera assigned to New York Mets. |
| Mar 15 | Vincent Perozo | Assigned | C Vincent Perozo assigned to New York Mets. |
| Mar 14 | Richard Lovelady | Status Change | New York Mets activated LHP Richard Lovelady. |
| Mar 14 | Justin Hagenman | Status Change | New York Mets placed RHP Justin Hagenman on the 60-day injured list. Rib Fracture. |
| Mar 14 | Richard Lovelady | Claimed Off Waivers | New York Mets claimed LHP Richard Lovelady off waivers from Washington Nationals. |
| Mar 13 | Heriberto Rincon | Assigned | CF Heriberto Rincon assigned to New York Mets. |
| Mar 13 | Bohan Adderley | Assigned | SS Bohan Adderley assigned to New York Mets. |
| Mar 13 | Yunior Amparo | Assigned | SS Yunior Amparo assigned to New York Mets. |
| Mar 12 | Cole Fowler | Purchase | New York Mets purchased 3B Cole Fowler from Washington Wild Things. |
| Mar 12 | JT Benson | Purchase | New York Mets purchased OF JT Benson from Lake Country DockHounds. |
| Mar 10 | Jonah Tong | Optioned | New York Mets optioned RHP Jonah Tong to Syracuse Mets. |
| Mar 9 | Channing Austin | Assigned | RHP Channing Austin assigned to New York Mets. |
| Mar 9 | Colin Houck | Assigned | SS Colin Houck assigned to New York Mets. |
| Mar 9 | Vladi Gomez | Assigned | 2B Vladi Gomez assigned to New York Mets. |
| Mar 9 | Jonathan Pintaro | Optioned | New York Mets optioned RHP Jonathan Pintaro to Syracuse Mets. |
| Mar 9 | Nick Morabito | Optioned | New York Mets optioned CF Nick Morabito to Syracuse Mets. |
| Mar 9 | Zac Thornton | Assigned | LHP Zach Thornton assigned to New York Mets. |
| Mar 7 | Simon Juan | Assigned | RF Simon Juan assigned to New York Mets. |
| Mar 6 | AJ Salgado | Assigned | OF AJ Salgado assigned to New York Mets. |
| Mar 6 | Trace Willhoite | Assigned | 3B Trace Willhoite assigned to New York Mets. |
| Mar 6 | Nick Roselli | Assigned | 2B Nick Roselli assigned to New York Mets. |
| Mar 6 | Branny De Oleo | Assigned | SS Branny De Oleo assigned to New York Mets. |
| Mar 6 | Dylan Ross | Optioned | New York Mets optioned RHP Dylan Ross to Syracuse Mets. |
| Mar 5 | Tanner Witt | Assigned | RHP Tanner Witt assigned to New York Mets. |
| Mar 5 | Ofreidy Gómez | Assigned | RHP Ofreidy Gómez assigned to New York Mets. |
| Mar 5 | Marco Vargas | Assigned | SS Marco Vargas assigned to New York Mets. |
| Mar 5 | Corey Collins | Assigned | 1B Corey Collins assigned to New York Mets. |
| Mar 2 | Dan Hammer | Signed as Free Agent | New York Mets signed free agent RHP Dan Hammer to a minor league contract. |
| Mar 1 | Alex Carrillo | Optioned | New York Mets optioned RHP Alex Carrillo to Syracuse Mets. |
| Mar 1 | Yonatan Henriquez | Assigned | 3B Yonatan Henriquez assigned to New York Mets. |
| Feb 28 | Mitch Voit | Assigned | 2B Mitch Voit assigned to New York Mets. |
| Feb 28 | Antonio Jimenez | Assigned | SS Antonio Jimenez assigned to New York Mets. |
| Feb 27 | Jose Aular | Assigned | C Jose Aular assigned to New York Mets. |
| Feb 26 | Sam Robertson | Assigned | 2B Sam Robertson assigned to New York Mets. |
| Feb 26 | D'Andre Smith | Assigned | 2B D'Andre Smith assigned to New York Mets. |
| Feb 24 | Randy Guzman | Assigned | OF Randy Guzman assigned to New York Mets. |
| Feb 24 | Ronald Hernandez | Assigned | C Ronald Hernandez assigned to New York Mets. |
| Feb 24 | Colton Cosper | Assigned | LHP Colton Cosper assigned to New York Mets. |
| Feb 24 | Bryce Conley | Assigned | RHP Bryce Conley assigned to New York Mets. |
| Feb 24 | Yohairo Cuevas | Assigned | OF Yohairo Cuevas assigned to New York Mets. |
| Feb 23 | Danis Correa | Signed as Free Agent | New York Mets signed free agent RHP Danis Correa to a minor league contract. |
| Feb 23 | Jefry Yan | Assigned | LHP Jefry Yan assigned to New York Mets. |
| Feb 23 | Hoss Brewer | Assigned | RHP Hoss Brewer assigned to New York Mets. |
| Feb 23 | Josh Blum | Assigned | RHP Josh Blum assigned to New York Mets. |
| Feb 22 | Jordan Geber | Assigned | RHP Jordan Geber assigned to New York Mets. |
| Feb 22 | Carlos Guzman | Assigned | RHP Carlos Guzman assigned to New York Mets. |
| Feb 22 | Douglas Orellana | Assigned | RHP Douglas Orellana assigned to New York Mets. |
| Feb 22 | Gregori Louis | Assigned | LHP Gregori Louis assigned to New York Mets. |
| Feb 22 | Cristofer Gomez | Assigned | RHP Cristofer Gomez assigned to New York Mets. |
| Feb 22 | John Bay | Assigned | RF John Bay assigned to New York Mets. |
| Feb 22 | JT Schwartz | Assigned | 1B JT Schwartz assigned to New York Mets. |
| Feb 22 | Onix Vega | Assigned | C Onix Vega assigned to New York Mets. |
| Feb 21 | Trey Snyder | Assigned | SS Trey Snyder assigned to New York Mets. |
| Feb 21 | Brian Metoyer | Assigned | RHP Brian Metoyer assigned to New York Mets. |
| Feb 21 | Brett Banks | Assigned | RHP Brett Banks assigned to New York Mets. |
| Feb 21 | Saul Garcia | Assigned | RHP Saul Garcia assigned to New York Mets. |
| Feb 21 | Trey McGough | Assigned | LHP Trey McGough assigned to New York Mets. |
| Feb 21 | Ben Simon | Assigned | RHP Ben Simon assigned to New York Mets. |
| Feb 21 | Aaron Rozek | Assigned | LHP Aaron Rozek assigned to New York Mets. |
| Feb 21 | Kevin Villavicencio | Assigned | SS Kevin Villavicencio assigned to New York Mets. |
| Feb 21 | Nick Lorusso | Assigned | 3B Nick Lorusso assigned to New York Mets. |
| Feb 21 | Diego Mosquera | Assigned | LF Diego Mosquera assigned to New York Mets. |
| Feb 21 | Francisco Toledo | Assigned | C Francisco Toledo assigned to New York Mets. |
| Feb 21 | Yonny Hernández | Assigned | SS Yonny Hernández assigned to New York Mets. |
| Feb 21 | Wyatt Young | Assigned | SS Wyatt Young assigned to New York Mets. |
| Feb 21 | Eli Serrano III | Assigned | RF Eli Serrano III assigned to New York Mets. |
| Feb 21 | Matt Rudick | Assigned | LF Matt Rudick assigned to New York Mets. |
| Feb 20 | Bryce Conley | Signed as Free Agent | New York Mets signed free agent RHP Bryce Conley to a minor league contract. |
| Feb 20 | Gabriel Rodriguez | Signed as Free Agent | New York Mets signed free agent LHP Gabriel Rodriguez to a minor league contract. |
| Feb 19 | Mike Tauchman | Signed as Free Agent | New York Mets signed free agent RF Mike Tauchman to a minor league contract. |
| Feb 18 | Trey Rutledge | Signed as Free Agent | New York Mets signed free agent OF Trey Rutledge to a minor league contract. |
| Feb 15 | Ben Rortvedt | Claimed Off Waivers | New York Mets claimed C Ben Rortvedt off waivers from Los Angeles Dodgers. |
| Feb 15 | Dedniel Núñez | Status Change | New York Mets placed RHP Dedniel Núñez on the 60-day injured list. Tommy John surgery recovery. |
| Feb 12 | Tylor Megill | Status Change | New York Mets placed RHP Tylor Megill on the 60-day injured list. Right elbow sprain. |
| Feb 12 | MJ Melendez | Signed as Free Agent | New York Mets signed free agent LF MJ Melendez. |
| Feb 10 | Reed Garrett | Status Change | New York Mets placed RHP Reed Garrett on the 60-day injured list. |
| Feb 10 | Bryan Hudson | Trade | Chicago White Sox traded LHP Bryan Hudson to New York Mets for cash. |
| Feb 9 | Jacob Reimer | Assigned | New York Mets invited non-roster 3B Jacob Reimer to spring training. |
| Feb 9 | Adbert Alzolay | Assigned | New York Mets invited non-roster RHP Adbert Alzolay to spring training. |
| Feb 9 | Justin Hagenman | Number Change | RHP Justin Hagenman changed number to 47. |
| Feb 9 | Dylan Ross | Number Change | RHP Dylan Ross changed number to 66. |
| Feb 9 | Tylor Megill | Number Change | RHP Tylor Megill changed number to 58. |
| Feb 9 | Hayden Senger | Number Change | C Hayden Senger changed number to 6. |
| Feb 9 | Jack Wenninger | Assigned | New York Mets invited non-roster RHP Jack Wenninger to spring training. |
| Feb 9 | Brandon Waddell | Assigned | New York Mets invited non-roster LHP Brandon Waddell to spring training. |
| Feb 9 | Chris Suero | Assigned | New York Mets invited non-roster C Chris Suero to spring training. |
| Feb 9 | Anderson Severino | Assigned | New York Mets invited non-roster LHP Anderson Severino to spring training. |
| Feb 9 | Kevin Parada | Assigned | New York Mets invited non-roster C Kevin Parada to spring training. |
| Feb 9 | Ryan Lambert | Assigned | New York Mets invited non-roster RHP Ryan Lambert to spring training. |
| Feb 9 | Joe Jacques | Assigned | New York Mets invited non-roster LHP Joe Jacques to spring training. |
| Feb 9 | A.J. Ewing | Assigned | New York Mets invited non-roster LF A.J. Ewing to spring training. |
| Feb 9 | Ryan Clifford | Assigned | New York Mets invited non-roster 1B Ryan Clifford to spring training. |
| Feb 9 | Carson Benge | Assigned | New York Mets invited non-roster OF Carson Benge to spring training. |
| Feb 3 | Grae Kessinger | Status Change | 3B Grae Kessinger roster status changed by New York Mets. |
| Feb 3 | Grae Kessinger | Signed as Free Agent | New York Mets signed free agent 3B Grae Kessinger to a minor league contract. |
| Jan 29 | Austin Barnes | Signed as Free Agent | New York Mets signed free agent C Austin Barnes to a minor league contract and invited him to spring training. |
| Jan 29 | Richard Lovelady | Claimed Off Waivers | Washington Nationals claimed LHP Richard Lovelady off waivers from New York Mets. |
| Jan 29 | Craig Kimbrel | Signed as Free Agent | New York Mets signed free agent RHP Craig Kimbrel to a minor league contract and invited him to spring training. |
| Jan 28 | Tsung-Che Cheng | Claimed Off Waivers | Washington Nationals claimed SS Tsung-Che Cheng off waivers from New York Mets. |
| Jan 23 | — | Trade | New York Mets traded RHP Cooper Criswell to Seattle Mariners for cash. |
| Jan 22 | Richard Lovelady | Designated for Assignment | New York Mets designated LHP Richard Lovelady for assignment. |
| Jan 22 | Vidal Bruján | Trade | Minnesota Twins traded 3B Vidal Bruján to New York Mets for cash. |
| Jan 21 | Cooper Criswell | Designated for Assignment | New York Mets designated RHP Cooper Criswell for assignment. |
| Jan 21 | Jett Williams | Trade | Milwaukee Brewers traded RHP Freddy Peralta and RHP Tobias Myers to New York Mets for RHP Brandon Sproat and SS Jett Williams. |
| Jan 21 | Tsung-Che Cheng | Designated for Assignment | New York Mets designated SS Tsung-Che Cheng for assignment. |
| Jan 21 | Luis García | Signed as Free Agent | New York Mets signed free agent RHP Luis García. |
| Jan 20 | Luis Robert Jr. | Trade | Chicago White Sox traded CF Luis Robert Jr. to New York Mets for 2B Luisangel Acuña and RHP Truman Pauley. |
| Jan 20 | Bo Bichette | Signed as Free Agent | New York Mets signed free agent SS Bo Bichette. |
| Jan 19 | Luisangel Acuña | Status Change | 2B Luisangel Acuña roster status changed by New York Mets. |
| Jan 16 | Tsung-Che Cheng | Claimed Off Waivers | New York Mets claimed SS Tsung-Che Cheng off waivers from Tampa Bay Rays. |
| Jan 15 | Trey McGough | Signed as Free Agent | New York Mets signed free agent LHP Trey McGough to a minor league contract. |
| Jan 15 | Sebastian Gomez | Signed as Free Agent | New York Mets signed free agent RHP Sebastian Gomez to a minor league contract. |
| Jan 15 | Edgardo Rodriguez | Signed as Free Agent | New York Mets signed free agent RHP Edgardo Rodriguez to a minor league contract. |
| Jan 15 | Eduardo Pina | Signed as Free Agent | New York Mets signed free agent LHP Eduardo Pina to a minor league contract. |
| Jan 15 | Royner Bravo | Signed as Free Agent | New York Mets signed free agent OF Royner Bravo to a minor league contract. |
| Jan 15 | Adrian La Rosa | Signed as Free Agent | New York Mets signed free agent C Adrian La Rosa to a minor league contract. |
| Jan 15 | Henry Manrique | Signed as Free Agent | New York Mets signed free agent OF Henry Manrique to a minor league contract. |
| Jan 15 | Yunior Canario | Signed as Free Agent | New York Mets signed free agent RHP Yunior Canario to a minor league contract. |
| Jan 15 | Elvis Teran | Signed as Free Agent | New York Mets signed free agent OF Elvis Teran to a minor league contract. |
| Jan 15 | Dayron Oramas | Signed as Free Agent | New York Mets signed free agent SS Dayron Oramas to a minor league contract. |
| Jan 15 | Yadier Fuentes | Signed as Free Agent | New York Mets signed free agent C Yadier Fuentes to a minor league contract. |
| Jan 15 | Mauricio Nunez | Signed as Free Agent | New York Mets signed free agent LHP Mauricio Nunez to a minor league contract. |
| Jan 15 | Jhoangel Marquez | Signed as Free Agent | New York Mets signed free agent RHP Jhoangel Marquez to a minor league contract. |
| Jan 15 | Cristian Dudamel | Signed as Free Agent | New York Mets signed free agent RHP Cristian Dudamel to a minor league contract. |
| Jan 15 | Yeremy Reyes | Signed as Free Agent | New York Mets signed free agent OF Yeremy Reyes to a minor league contract. |
| Jan 15 | Ryan Rudas | Signed as Free Agent | New York Mets signed free agent OF Ryan Rudas to a minor league contract. |
| Jan 15 | Gensil Rosario | Signed as Free Agent | New York Mets signed free agent RHP Gensil Rosario to a minor league contract. |
| Jan 15 | Michalle Mercedes | Signed as Free Agent | New York Mets signed free agent SS Michalle Mercedes to a minor league contract. |
| Jan 15 | Oscar Montero | Signed as Free Agent | New York Mets signed free agent RHP Oscar Montero to a minor league contract. |
| Jan 15 | Oscar Pena | Signed as Free Agent | New York Mets signed free agent SS Oscar Pena to a minor league contract. |
| Jan 15 | Cristopher Jaquez | Signed as Free Agent | New York Mets signed free agent SS Cristopher Jaquez to a minor league contract. |
| Jan 15 | Emerson Estevez | Signed as Free Agent | New York Mets signed free agent Emerson Estevez to a minor league contract. |
| Jan 15 | Johnderis Sanchez | Signed as Free Agent | New York Mets signed free agent SS Johnderis Sanchez to a minor league contract. |
| Jan 15 | Frank Moreno | Signed as Free Agent | New York Mets signed free agent C Frank Moreno to a minor league contract. |
| Jan 15 | Sebastian Toro | Signed as Free Agent | New York Mets signed free agent SS Sebastian Toro to a minor league contract. |
| Jan 15 | — | Trade | New York Mets traded LHP Franklin Gomez to Cleveland Guardians for Future Considerations. International Bonus Pool Money. |
| Jan 15 | Cleiner Ramirez | Signed as Free Agent | New York Mets signed free agent OF Cleiner Ramirez to a minor league contract. |
| Jan 15 | Wandy Asigen | Signed as Free Agent | New York Mets signed free agent SS Wandy Asigen to a minor league contract. |
| Jan 8 | Jihwan Bae | Outrighted | New York Mets sent CF Ji Hwan Bae outright to Syracuse Mets. |
| Jan 8 | Drew Romo | Claimed Off Waivers | Chicago White Sox claimed C Drew Romo off waivers from New York Mets. |
| Jan 6 | Christian Arroyo | Status Change | 2B Christian Arroyo roster status changed by New York Mets. |
| Jan 6 | Christian Arroyo | Signed as Free Agent | New York Mets signed free agent 2B Christian Arroyo to a minor league contract. |
| Jan 1 | Mike Baumann | Status Change | RHP Mike Baumann roster status changed by New York Mets. |
| Jan 1 | Mike Baumann | Signed as Free Agent | New York Mets signed free agent RHP Mike Baumann to a minor league contract. |