| Latest Transactions |
| DATE | TRANSACTION |
| November 21, 2009 | Purchased the contracts of INF Reegie Corona, OF Austin Jackson, RHP Ivan Nova, RHP Romulo Sanchez and INF Kevin Russo from Scranton/Wilkes-Barre (IL); INF Eduardo Nunez from Trenton (EL); and RHP Hector Noesi from Tampa (FSL). Sent INF-OF Shelley Duncan outright to Scranton/Wilkes-Barre. Reinstated RHP Chien-Ming Wang from the 60-day DL. |
| November 18, 2009 | Declined their 2010 contract option on RHP Sergio Mitre. |
| November 13, 2009 | Announced OF Freddy Guzman declined an outright assignment to Scranton/Wilkes-Barre (IL) and elected to become a free agent. |
| November 12, 2009 | Announced RHP Josh Towers refused outright assignment to Scranton-Wilkes Barre (IL) and elected to become a free agent. |
| October 15, 2009 | Signed 1B Trent Lockwood. |
| September 18, 2009 | Called up INF Juan Miranda from Scranton-Wilkes Barre (IL). |
| September 15, 2009 | Purchased the contract of OF Freddy Guzman from Scranton/Wilkes-Barre (IL). Designated RHP Anthony Claggett for assignment. |
| September 11, 2009 | Announced C Kevin Cash has cleared waivers and is now a free agent. |
| September 7, 2009 | RF Shelley Duncan called up from minors |
| September 5, 2009 | RP Josh Towers purchased from minors; C Kevin Cash released |
| September 3, 2009 | RP Jonathan Albaladejo called up from minors |
| September 1, 2009 | C Francisco Cervelli called up from minors; SP Michael Dunn called up from minors; RP Mark Melancon called up from minors; 3B Ramiro Pena called up from minors; RP Edwar Ramirez called up from minors |
| August 18, 2009 | Released pitcher Russ Ortiz. |
| August 10, 2009 | Activated pitcher Chad Gaudin; designated pitcher Josh Towers for assignment. |
| August 9, 2009 | Transferred pitcher Damaso Marte to the 60-day disabled list; optioned pitcher Mark Melancon to Scranton/Wilkes Barre of the International League (AAA); purchased the contract of pitcher Josh Towers from Scranton/Wilkes Barre. |
| August 8, 2009 | Optioned pitcher Anthony Claggett to Scranton/Wilkes Barre of the International League (AAA); sent third baseman Cody Ransom outright to Scranton-Wilkes Barre; recalled third baseman Ramiro Pena from Scranton-Wilkes Barre; |
| August 8, 2009 | Signed pitcher Russ Ortiz to a minor league contract and assigned him to Scranton/Wilkes Barre of the International League (AAA). |
| July 31, 2009 | Acquired infielder Jerry Hairston Jr. from the Cincinnat Reds for catcher Chase Weems. |
| July 27, 2009 | Placed outfielder Brett Gardner on the 15-day disabled list; recalled pitcher Jonathan Albaladejo from Scranton/Wilkes Barre Yankees from the International League (AAA). |
| July 12, 2009 | Signed pitchers Sean Black and Brett Gerritse. |
| July 11, 2009 | Recalled pitcher Mark Melancon from Scranton/Wilkes Barre from the International League (AAA); optioned pitcher Jonathan Albaladejo to Scranton/Wilkes Barre. |
| July 9, 2009 | Activated catcher Jose Molina; optioned catcher Francisco Cervelli to Scranton/Wilkes Barre of the International League (AAA). |
| July 6, 2009 | Placed pitcher Chien-Ming Wang on the 15-day disabled list; recalled pitcher Jonathan Albaladejo from Scranton/Wilkes-Barre of the International League (AAA). |
| July 4, 2009 | Optioned third baseman Ramiro Pena to Scranton/Wilkes-Barre of the International League (AAA). |
| June 25, 2009 | Activated third baseman Cody Ransom from the 60-day disabled list; designated second baseman Angel Berroa for assignment. |
| June 16, 2009 | Activated pitcher Brian Bruney from the 15-day disabled list, designated pitcher Jose Veras for assignment. |
| June 16, 2009 | Activated pitcher Brian Bruney from the 15-day disabled list; designated pitcher Jose Veras for assignment. |
| May 30, 2009 | Activated catcher Jorge Posada from the 15-day disabled list; optioned catcher Kevin Cash to Scranton/Wilkes Barre of the International League (AAA). |