Athletics Roster & Staff
Transactions
| Date | Transaction |
| 07/31/14 | Oakland Athletics designated SS Jake Elmore for assignment. |
| 07/31/14 | Oakland Athletics signed free agent RHP Joey Wagman to a minor league contract. |
| 07/31/14 | Oakland Athletics sent CF Kenny Wilson outright to Midland RockHounds. |
| 07/31/14 | Oakland Athletics activated LF Sam Fuld. |
| 07/31/14 | Minnesota Twins traded Sam Fuld to Oakland Athletics for LHP Tommy Milone. |
| 07/31/14 | Minnesota Twins traded Sam Fuld to Oakland Athletics for LHP Tommy Milone. |
| 07/31/14 | Boston Red Sox traded LHP Jon Lester, LF Jonny Gomes and cash to Oakland Athletics for LF Yoenis Cespedes and . |
| 07/31/14 | Boston Red Sox traded LHP Jon Lester, LF Jonny Gomes and cash to Oakland Athletics for LF Yoenis Cespedes and . |
| 07/31/14 | Boston Red Sox traded LHP Jon Lester, LF Jonny Gomes and cash to Oakland Athletics for LF Yoenis Cespedes and . |
| 07/31/14 | Oakland Athletics optioned CF Billy Burns to Sacramento River Cats. |
| 07/28/14 | Oakland Athletics designated CF Kenny Wilson for assignment. |
| 07/28/14 | Oakland Athletics placed CF Craig Gentry on the 15-day disabled list. Broken right hand |
| 07/28/14 | Oakland Athletics selected the contract of Billy Burns from Midland RockHounds. |
| 07/27/14 | Oakland Athletics activated 1B Alberto Callaspo from the 15-day disabled list. |
| 07/27/14 | Oakland Athletics optioned 1B Nate Freiman to Sacramento River Cats. |
| 07/26/14 | Oakland Athletics sent 1B Alberto Callaspo on a rehab assignment to Stockton Ports. |
| 07/25/14 | Toronto Blue Jays traded RHP Deck McGuire to Oakland Athletics for cash. |
| 07/25/14 | Oakland Athletics optioned RHP Deck McGuire to Sacramento River Cats. |
| 07/24/14 | Oakland Athletics designated RHP Jim Johnson for assignment. |
| 07/24/14 | Oakland Athletics signed free agent RHP Benjamin Bracewell to a minor league contract. |
| 07/24/14 | Oakland Athletics recalled RHP Evan Scribner from Sacramento River Cats. |
| 07/22/14 | Oakland Athletics activated RF Josh Reddick from the 15-day disabled list. |
| 07/21/14 | Oakland Athletics signed free agent RHP Tim Alderson to a minor league contract. |
| 07/21/14 | Oakland Athletics signed free agent OF Zeke DeVoss to a minor league contract. |
| 07/21/14 | Oakland Athletics optioned SS Andy Parrino to Sacramento River Cats. |
| 07/21/14 | Oakland Athletics signed free agent C Josh Ludy to a minor league contract. |
| 07/18/14 | Oakland Athletics signed free agent RHP Oscar Tovar to a minor league contract. |
| 07/17/14 | Toronto Blue Jays claimed LHP Brad Mills off waivers from Oakland Athletics. |
| 07/14/14 | Oakland Athletics sent RF Josh Reddick on a rehab assignment to Stockton Ports. |
| 07/13/14 | Oakland Athletics optioned LHP Drew Pomeranz to Sacramento River Cats. |
| 07/12/14 | Oakland Athletics recalled Andy Parrino from Sacramento River Cats. |
| 07/12/14 | Oakland Athletics placed 1B Alberto Callaspo on the 15-day disabled list. Right hamstring strain. |
| 07/12/14 | Oakland Athletics sent LHP Drew Pomeranz on a rehab assignment to Sacramento River Cats. |
| 07/11/14 | Oakland Athletics traded cash and LHP Jeff Francis to New York Yankees for Player To Be Named Later. |
| 07/07/14 | Oakland Athletics activated RHP Jason Hammel. |
| 07/07/14 | LHP Tyler Painton assigned to Oakland Athletics. |
| 07/07/14 | Oakland Athletics optioned CF Kenny Wilson to Sacramento River Cats. |
| 07/07/14 | Oakland Athletics sent Nick Buss outright to Sacramento River Cats. |
| 07/07/14 | Oakland Athletics claimed CF Kenny Wilson off waivers from Toronto Blue Jays. |
| 07/07/14 | Oakland Athletics designated LHP Brad Mills for assignment. |
| 07/06/14 | Oakland Athletics signed free agent C Jorge Gordon to a minor league contract. |
| 07/05/14 | Oakland Athletics optioned LHP Tommy Milone to Sacramento River Cats. |
| 07/05/14 | Chicago Cubs traded RHP Jason Hammel and RHP Jeff Samardzija to Oakland Athletics for SS Addison Russell, CF Billy McKinney, RHP Dan Straily and cash. |
| 07/05/14 | Oakland Athletics designated CF Nick Buss for assignment. |
| 07/05/14 | Chicago Cubs traded RHP Jason Hammel and RHP Jeff Samardzija to Oakland Athletics for SS Addison Russell, CF Billy McKinney, RHP Dan Straily and cash. |
| 07/05/14 | Chicago Cubs traded RHP Jason Hammel and RHP Jeff Samardzija to Oakland Athletics for SS Addison Russell, CF Billy McKinney, RHP Dan Straily and cash. |
| 07/05/14 | Chicago Cubs traded RHP Jason Hammel and RHP Jeff Samardzija to Oakland Athletics for SS Addison Russell, CF Billy McKinney, RHP Dan Straily and cash. |
| 07/05/14 | Chicago Cubs traded RHP Jason Hammel and RHP Jeff Samardzija to Oakland Athletics for SS Addison Russell, CF Billy McKinney, RHP Dan Straily and cash. |
| 07/04/14 | Oakland Athletics signed free agent SS Jesus Lage to a minor league contract. |
| 07/03/14 | Oakland Athletics activated LHP Eric O'Flaherty from the 60-day disabled list. |
| 07/03/14 | Oakland Athletics designated LHP Jeff Francis for assignment. |