Oakland Athletics

Oakland Athletics acquire Date Arizona Diamondbacks acquire
Collin Cowgill
Jarrod Parker
Ryan Cook
December 9, 2011
cash
Craig Breslow
Trevor Cahill
Oakland Athletics acquire Date Toronto Blue Jays acquire
cash
November 3, 2011
Trystan Magnuson
Oakland Athletics acquire Date Kansas City Royals acquire
Kila Ka'aihue
September 27, 2011
Ethan Hollingsworth
Oakland Athletics acquire Date Boston Red Sox acquire
Jason Rice
August 31, 2011
Conor Jackson
Oakland Athletics acquire Date Colorado Rockies acquire
Future considerations
August 23, 2011
cash
Kevin Kouzmanoff
Oakland Athletics acquire Date Tampa Bay Rays acquire
cash
August 1, 2011
Matt Carson
Oakland Athletics acquire Date Arizona Diamondbacks acquire
Brandon Allen
Jordan Norberto
July 31, 2011
Brad Ziegler
Houston Astros acquire Date Oakland Athletics acquire
Mickey Storey
June 30, 2011
Future considerations
Oakland Athletics acquire Date Colorado Rockies acquire
Player to be named later (Eliezer Mesa)
Bruce Billings
June 30, 2011
cash
Mark Ellis
Oakland Athletics acquire Date San Diego Padres acquire
cash
May 29, 2011
Steve Tolleson
Oakland Athletics acquire Date Detroit Tigers acquire
Scott Sizemore
May 27, 2011
David Purcey
Oakland Athletics acquire Date Toronto Blue Jays acquire
David Purcey
April 18, 2011
Danny Farquhar
Oakland Athletics acquire Date Colorado Rockies acquire
Ethan Hollingsworth
January 24, 2011
Clayton Mortensen
Oakland Athletics acquire Date Texas Rangers acquire
Guillermo Moscoso
January 8, 2011
Ryan Kelly
Oakland Athletics acquire Date Pittsburgh Pirates acquire
Ryan Kelly
December 23, 2010
Corey Wimberly
Oakland Athletics acquire Date Washington Nationals acquire
Josh Willingham
December 16, 2010
Corey Brown
Henry Alberto Rodriguez
Oakland Athletics acquire Date Toronto Blue Jays acquire
Daniel Farquhar
Trystan Magnuson
November 17, 2010
Rajai Davis
Oakland Athletics acquire Date Kansas City Royals acquire
David DeJesus
November 10, 2010
Justin Marks
Vin Mazzaro
Oakland Athletics acquire Date Chicago White Sox acquire
Jared Price
June 26, 2010
Michael Richard
Oakland Athletics acquire Date Boston Red Sox acquire
Fabian Williamson
June 26, 2010
Eric Patterson