May 29, 2012

• The New York Yankees acquired RHP Ryota Igarashi off waivers from Toronto.
• The Texas Rangers agreed to terms with RHP Roy Oswalt on a minor league contract.

May 27, 2012

• The Baltimore Orioles agreed to terms with OF Adam Jones on a six-year contract through 2018.

May 26, 2012

• The Arizona Diamondbacks agreed to terms with C Miguel Montero on a five-year contract through 2017.
• The Houston Astros traded OF Justin Ruggiano to Miami for C Jobduan Morales.

May 23, 2012

• The Milwaukee Brewers claimed INF Cody Ransom off waivers from Arizona.

May 22, 2012

• The Chicago White Sox agreed to terms with INF Orlando Hudson on a one-year contract.

May 21, 2012

• The Tampa Bay Rays acquired INF Drew Sutton from Pittsburgh for a player to be named or cash considerations.

May 20, 2012

• The Pittsburgh Pirates acquired INF Drew Sutton from Atlanta for cash.

May 19, 2012

• The Chicago Cubs acquired C Koyie Hill from Cincinnati Reds for cash considerations.

May 18, 2012

• The San Diego Padres claimed LHP Eric Stults off waivers from Chicago (AL).
• The San Francisco Giants agreed to terms with RHP Brad Penny on a minor league contract

May 17, 2012

• The New York Yankees claimed INF Matt Antonelli off waivers from Baltimore.
• The San Diego Padres released INF Orlando Hudson.

May 16, 2012

• The Cleveland Indians released RHP Robinson Tejeda.
• The Tampa Bay Rays acquired OF Rich Thompson from Philadelphia Phillies for OF Kyle Hudson.

May 14, 2012

• The St. Louis Cardinals released LHP J.C. Romero.

May 12, 2012

• The Baltimore Orioles acquired LHP Mike Belfiore from Arizona to complete an earlier trade.
• The Kansas City Royals agreed to terms with LHP Doug Davis on a minor league contract.

May 11, 2012

• The Pittsburgh Pirates acquired 1B/3B Jeff Larish from the Boston Red Sox in exchange for cash considerations.
• The Boston Red Sox acquired OF Scott Podsednik from the Philadelphia Phillies for cash considerations.

May 10, 2012

• The Toronto Blue Jays agreed to terms with OF Vladimir Guerrero on a minor league contract.

May 8, 2012

• The San Diego Padres agreed to terms with RHP Kip Wells, RHP Anthony Reyes and RHP Daniel Stange on minor league contracts.
• The Washington Nationals agreed to terms with LHP Michael Gonzalez on a minor-league contract.

May 4, 2012

• The Cleveland Indians traded OF Ryan Spilborghs to Texas Rangers for cash.
• The Los Angeles Dodgers agreed to terms with OF Bobby Abreu on a one-year contract.
• The Minnesota Twins claimed OF Erik Komatsu off waivers from St. Louis.

May 3, 2012

• The San Diego Padres acquired INF Alexi Amarista and RHP Donn Roach from the Los Angeles Angels of Anaheim in exchange for RHP Ernesto Frieri.

May 2, 2012

• The Cincinnati Reds agreed to terms with RHP Michael Wuertz on a minor league contract.