Mets Roster & Staff
Transactions
| Date | Transaction |
| 06/30/10 | New York Mets signed RHP Akeel Morris. |
| 06/30/10 | New York Mets signed C Patrick Farrell. |
| 06/30/10 | Blake Forsythe assigned to GCL Mets from New York Mets. |
| 06/29/10 | New York Mets signed C Blake Forsythe. |
| 06/28/10 | Brian Harrison assigned to GCL Mets from New York Mets. |
| 06/27/10 | Steve Winnick assigned to GCL Mets from New York Mets. |
| 06/27/10 | Peter Birdwell assigned to GCL Mets from New York Mets. |
| 06/27/10 | Jeremy Gould assigned to GCL Mets from New York Mets. |
| 06/27/10 | New York Mets signed 3B Brian Harrison. |
| 06/26/10 | New York Mets signed RHP Peter Birdwell. |
| 06/26/10 | New York Mets signed LHP Jeremy Gould. |
| 06/26/10 | New York Mets signed RHP Steve Winnick. |
| 06/24/10 | OF Michael Bernal assigned to DSL Mets2 from New York Mets. |
| 06/24/10 | New York Mets recalled C Josh Thole from Buffalo Bisons. |
| 06/24/10 | New York Mets optioned Raul Valdes to Buffalo Bisons. |
| 06/23/10 | RHP Ramon Ortiz assigned to Buffalo Bisons from New York Mets. |
| 06/23/10 | New York Mets signed OF Michael Bernal. |
| 06/23/10 | New York Mets signed free agent RHP Ramon Ortiz to a minor league contract. |
| 06/21/10 | Dylan Brown assigned to GCL Mets from New York Mets. |
| 06/21/10 | Tillman Pugh assigned to GCL Mets from New York Mets. |
| 06/21/10 | LHP Zachary Dotson assigned to GCL Mets from New York Mets. |
| 06/21/10 | Juan Urbina assigned to GCL Mets from New York Mets. |
| 06/21/10 | LHP Steven Matz assigned to GCL Mets from New York Mets. |
| 06/21/10 | C Jeff Glenn assigned to GCL Mets from New York Mets. |
| 06/21/10 | New York Mets recalled Bobby Parnell from Buffalo Bisons. |
| 06/21/10 | New York Mets optioned RHP Jenrry Mejia to Binghamton Mets. |
| 06/21/10 | Todd Weldon assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | LHP Lachlan Hodge assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | Justin Schafer assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | Jacob deGrom assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | Brandon Brown assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | Josh Edgin assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | Bret Mitchell assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | Luke Stewart assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | Jeff Walters assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | Kenneth McDowall assigned to Kingsport Mets from New York Mets. |
| 06/21/10 | Adam Kolarek assigned to Kingsport Mets from New York Mets. |
| 06/20/10 | New York Mets signed RHP Jeff Walters. |
| 06/20/10 | New York Mets signed LHP Josh Edgin. |
| 06/20/10 | New York Mets signed RHP Jacob deGrom. |
| 06/20/10 | New York Mets signed LHP Adam Kolarek. |
| 06/20/10 | New York Mets signed RHP Kenneth McDowall. |
| 06/20/10 | New York Mets signed RHP Bret Mitchell. |
| 06/20/10 | New York Mets signed RHP Todd Weldon. |
| 06/20/10 | New York Mets signed 2B Justin Schafer. |
| 06/20/10 | New York Mets signed 3B Brandon Brown. |
| 06/20/10 | New York Mets signed 3B Luke Stewart. |
| 06/20/10 | New York Mets signed LHP Zachary Dotson. |
| 06/20/10 | New York Mets signed OF Dylan Brown. |
| 06/20/10 | New York Mets signed free agent LHP Juan Urbina to a minor league contract. |
| 06/20/10 | New York Mets signed OF Tillman Pugh. |
| 06/19/10 | Toronto Blue Jays traded OF Jorge Padilla to New York Mets. |
| 06/19/10 | OF Jorge Padilla assigned to Buffalo Bisons from New York Mets. |
| 06/16/10 | Cory Vaughn assigned to Brooklyn Cyclones from New York Mets. |
| 06/16/10 | Ryan Fraser assigned to Brooklyn Cyclones from New York Mets. |
| 06/16/10 | New York Mets signed RHP Ryan Fraser. |
| 06/16/10 | Chad Sheppard assigned to Brooklyn Cyclones from New York Mets. |
| 06/16/10 | Hunter Carnevale assigned to Brooklyn Cyclones from New York Mets. |
| 06/16/10 | Jonathan Kountis assigned to Brooklyn Cyclones from New York Mets. |
| 06/16/10 | Hamilton Bennett assigned to Brooklyn Cyclones from New York Mets. |
| 06/15/10 | New York Mets signed RHP Jonathan Kountis. |
| 06/15/10 | New York Mets signed RHP Chad Sheppard. |
| 06/15/10 | New York Mets signed LHP Hamilton Bennett. |
| 06/15/10 | New York Mets signed OF Cory Vaughn. |
| 06/15/10 | New York Mets signed Hunter Carnevale. |
| 06/15/10 | New York Mets signed 2B J.B. Brown. |
| 06/15/10 | New York Mets signed 3B Jet Butler. |
| 06/15/10 | New York Mets signed RHP A. J. Pinera. |
| 06/08/10 | New York Mets selected the contract of Jesus Feliciano from Buffalo Bisons. |
| 06/07/10 | New York Mets optioned C Omir Santos to Binghamton Mets. |
| 06/05/10 | New York Mets placed LHP Oliver Perez on the 15-day disabled list retroactive to June 1, 2010. Patella tendinitis of right knee |
| 06/05/10 | New York Mets activated LHP Jon Niese from the 15-day disabled list. |
| 06/04/10 | New York Mets recalled Omir Santos from Binghamton Mets. |
| 06/04/10 | New York Mets placed 2B Luis Castillo on the 15-day disabled list retroactive to June 2, 2010. Bruised right heel. |
| 06/04/10 | New York Mets designated CF Gary Matthews for assignment. |
| 06/04/10 | New York Mets recalled Ruben Tejada from Buffalo Bisons. |