Mets Roster & Staff
Transactions
| Date | Transaction |
| 07/31/15 | Detroit Tigers traded LF Yoenis Cespedes to New York Mets for RHP Luis Cessa and RHP Michael Fulmer. |
| 07/31/15 | Detroit Tigers traded LF Yoenis Cespedes to New York Mets for RHP Luis Cessa and RHP Michael Fulmer. |
| 07/31/15 | New York Mets activated LF Yoenis Cespedes. |
| 07/31/15 | New York Mets optioned C Anthony Recker to Las Vegas 51s. |
| 07/31/15 | New York Mets activated C Travis d'Arnaud from the 15-day disabled list. |
| 07/31/15 | Detroit Tigers traded LF Yoenis Cespedes to New York Mets for RHP Luis Cessa and RHP Michael Fulmer. |
| 07/30/15 | New York Mets released LF John Mayberry Jr.. |
| 07/28/15 | New York Mets optioned RHP Logan Verrett to Las Vegas 51s. |
| 07/28/15 | New York Mets signed free agent RHP Miguel Ramirez to a minor league contract. |
| 07/28/15 | New York Mets signed free agent 1B Vince Belnome to a minor league contract. |
| 07/28/15 | New York Mets placed RHP Jenrry Mejia on the restricted list. |
| 07/28/15 | New York Mets activated RHP Tyler Clippard. |
| 07/28/15 | New York Mets activated LHP Jon Niese from the paternity list. |
| 07/27/15 | Oakland Athletics traded RHP Tyler Clippard and cash to New York Mets for RHP Casey Meisner. |
| 07/27/15 | Oakland Athletics traded RHP Tyler Clippard and cash to New York Mets for RHP Casey Meisner. |
| 07/27/15 | New York Mets transferred RHP Erik Goeddel from the 15-day disabled list to the 60-day disabled list. Right elbow strain |
| 07/27/15 | New York Mets sent RF Cesar Puello on a rehab assignment to GCL Mets. |
| 07/25/15 | New York Mets activated 2B Kelly Johnson. |
| 07/25/15 | New York Mets sent C Travis d'Arnaud on a rehab assignment to Binghamton Mets. |
| 07/25/15 | New York Mets recalled Logan Verrett from Las Vegas 51s. |
| 07/25/15 | New York Mets designated LF John Mayberry Jr. for assignment. |
| 07/25/15 | New York Mets placed LHP Jon Niese on the paternity list. |
| 07/25/15 | New York Mets activated 3B Juan Uribe. |
| 07/25/15 | New York Mets optioned 3B Danny Muno to Las Vegas 51s. |
| 07/24/15 | New York Mets traded RHP John Gant and RHP Rob Whalen to Atlanta Braves for 3B Juan Uribe, LF Kelly Johnson and cash. |
| 07/24/15 | New York Mets signed free agent C Andres Regnault to a minor league contract. |
| 07/24/15 | New York Mets transferred 3B David Wright from the 15-day disabled list to the 60-day disabled list. Spinal stenosis. |
| 07/24/15 | New York Mets selected the contract of Michael Conforto from Binghamton Mets. |
| 07/24/15 | New York Mets placed LF Michael Cuddyer on the 15-day disabled list retroactive to July 22, 2015. Bone bruise in his left knee |
| 07/24/15 | New York Mets transferred RHP Rafael Montero from the 15-day disabled list to the 60-day disabled list. Right rotator cuff inflammation |
| 07/24/15 | New York Mets traded RHP John Gant and RHP Rob Whalen to Atlanta Braves for 3B Juan Uribe, LF Kelly Johnson and cash. |
| 07/24/15 | New York Mets traded RHP John Gant and RHP Rob Whalen to Atlanta Braves for 3B Juan Uribe, LF Kelly Johnson and cash. |
| 07/24/15 | New York Mets traded RHP John Gant and RHP Rob Whalen to Atlanta Braves for 3B Juan Uribe, LF Kelly Johnson and cash. |
| 07/23/15 | New York Mets sent C Travis d'Arnaud on a rehab assignment to St. Lucie Mets. |
| 07/23/15 | New York Mets signed free agent OF Edinson Valdez to a minor league contract. |
| 07/21/15 | New York Mets signed free agent 3B Jonathan Galvez to a minor league contract. |
| 07/20/15 | New York Mets recalled Anthony Recker from Las Vegas 51s. |
| 07/20/15 | New York Mets optioned C Johnny Monell to Las Vegas 51s. |
| 07/16/15 | New York Mets signed RHP Jordan Humphreys. |
| 07/16/15 | New York Mets signed free agent 3B Zach Lutz to a minor league contract. |
| 07/14/15 | New York Mets sent RHP Rafael Montero on a rehab assignment to GCL Mets. |
| 07/11/15 | New York Mets signed free agent OF Joe Benson to a minor league contract. |
| 07/10/15 | New York Mets placed LHP Steven Matz on the 15-day disabled list retroactive to July 6, 2015. Partial tear of lat muscle on left side |
| 07/10/15 | New York Mets recalled Danny Muno from Las Vegas 51s. |
| 07/07/15 | New York Mets activated RHP Jenrry Mejia from the restricted list. |
| 07/07/15 | New York Mets optioned RHP Logan Verrett to Las Vegas 51s. |
| 07/07/15 | New York Mets transferred RHP Buddy Carlyle from the 15-day disabled list to the 60-day disabled list. Back spasms |
| 07/06/15 | New York Mets selected the contract of LF Kirk Nieuwenhuis from Las Vegas 51s. |
| 07/06/15 | New York Mets optioned CF Darrell Ceciliani to Las Vegas 51s. |
| 07/02/15 | New York Mets signed free agent RHP Mickey Jannis to a minor league contract. |
| 07/02/15 | New York Mets signed free agent SS Gregory Guerrero to a minor league contract. |
| 07/02/15 | New York Mets signed free agent SS Andres Gimenez to a minor league contract. |
| 07/02/15 | New York Mets signed free agent SS Shervyen Newton to a minor league contract. |
| 07/02/15 | New York Mets signed free agent LHP Michael Martinez to a minor league contract. |