Mariners Roster & Staff
Transactions
| Date | Transaction |
| 06/29/11 | Seattle Mariners designated Chaz Roe for assignment. |
| 06/29/11 | Seattle Mariners placed LHP Erik Bedard on the 15-day disabled list retroactive to June 28, 2011. Sprained left knee. |
| 06/29/11 | Seattle Mariners selected the contract of C Josh Bard from Tacoma Rainiers. |
| 06/29/11 | Seattle Mariners selected the contract of C Jose Yepez from Tacoma Rainiers. |
| 06/29/11 | Seattle Mariners placed C Chris Gimenez on the 15-day disabled list. Strained Left Oblique |
| 06/29/11 | Seattle Mariners designated Edward Paredes for assignment. |
| 06/27/11 | RHP Ronald Dominguez assigned to DSL Mariners from Seattle Mariners. |
| 06/27/11 | Seattle Mariners signed RHP Ronald Dominguez. |
| 06/21/11 | RHP Bo Reeder assigned to Pulaski Mariners from Seattle Mariners. |
| 06/21/11 | Jeremy Dobbs assigned to Pulaski Mariners from Seattle Mariners. |
| 06/21/11 | OF Mike McGee assigned to Everett AquaSox from Seattle Mariners. |
| 06/21/11 | RHP Jordan Pries assigned to Everett AquaSox from Seattle Mariners. |
| 06/20/11 | Benjamin Cornwell assigned to AZL Mariners from Seattle Mariners. |
| 06/20/11 | David Holman assigned to AZL Mariners from Seattle Mariners. |
| 06/20/11 | Brandon Plotz assigned to AZL Mariners from Seattle Mariners. |
| 06/20/11 | Reggie Lawson assigned to AZL Mariners from Seattle Mariners. |
| 06/20/11 | C Norberto Susini assigned to AZL Mariners from Seattle Mariners. |
| 06/20/11 | Seattle Mariners signed RHP Jordan Pries. |
| 06/20/11 | Seattle Mariners signed OF Mike McGee. |
| 06/20/11 | Ernesto Zaragoza assigned to AZL Mariners from Seattle Mariners. |
| 06/20/11 | Seattle Mariners signed RHP Bo Reeder. |
| 06/20/11 | Seattle Mariners signed LHP Jeremy Dobbs. |
| 06/19/11 | Seattle Mariners signed RHP Brandon Plotz. |
| 06/19/11 | Seattle Mariners signed RHP David Holman. |
| 06/19/11 | Seattle Mariners signed RHP Ernesto Zaragoza. |
| 06/19/11 | Seattle Mariners signed RHP Maxx Catapano. |
| 06/19/11 | Seattle Mariners signed RHP Benjamin Cornwell. |
| 06/19/11 | Seattle Mariners signed C Norberto Susini. |
| 06/19/11 | Seattle Mariners signed OF Reggie Lawson. |
| 06/16/11 | Seattle Mariners optioned 2B Luis Rodriguez to Tacoma Rainiers. |
| 06/16/11 | Seattle Mariners recalled Dustin Ackley from Tacoma Rainiers. |
| 06/14/11 | Dillon Hazlett assigned to Pulaski Mariners from Seattle Mariners. |
| 06/14/11 | LF Charles Jimenez assigned to AZL Mariners from Seattle Mariners. |
| 06/14/11 | Joshua Corrales assigned to AZL Mariners from Seattle Mariners. |
| 06/14/11 | Marcos Reyna assigned to AZL Mariners from Seattle Mariners. |
| 06/14/11 | Trevor Miller assigned to AZL Mariners from Seattle Mariners. |
| 06/14/11 | 1B Chris Andreas assigned to AZL Mariners from Seattle Mariners. |
| 06/14/11 | RHP Alex Sunderland assigned to AZL Mariners from Seattle Mariners. |
| 06/14/11 | David Villasuso assigned to Pulaski Mariners from Seattle Mariners. |
| 06/14/11 | Bobby Shore assigned to Pulaski Mariners from Seattle Mariners. |
| 06/14/11 | Kyle Hunter assigned to Pulaski Mariners from Seattle Mariners. |
| 06/14/11 | Brett Shankin assigned to Pulaski Mariners from Seattle Mariners. |
| 06/14/11 | David Colvin assigned to Pulaski Mariners from Seattle Mariners. |
| 06/14/11 | OF Kenneth Straus assigned to Pulaski Mariners from Seattle Mariners. |
| 06/14/11 | Jamal Austin assigned to Pulaski Mariners from Seattle Mariners. |
| 06/14/11 | Daniel Paolini assigned to Pulaski Mariners from Seattle Mariners. |
| 06/14/11 | Michael Dowd assigned to Everett AquaSox from Seattle Mariners. |
| 06/14/11 | Nathan Melendres assigned to Everett AquaSox from Seattle Mariners. |
| 06/14/11 | RHP Max Krakowiak assigned to Everett AquaSox from Seattle Mariners. |
| 06/13/11 | Seattle Mariners transferred RHP David Aardsma from the 15-day disabled list to the 60-day disabled list. |
| 06/13/11 | Seattle Mariners signed 1B Chris Andreas. |
| 06/13/11 | Seattle Mariners signed RHP Trevor Miller. |
| 06/13/11 | Seattle Mariners signed RHP Marcos Reyna. |
| 06/13/11 | Seattle Mariners signed RHP Joshua Corrales. |
| 06/13/11 | Seattle Mariners signed OF Charles Jimenez. |
| 06/13/11 | Seattle Mariners optioned Mauricio Robles to High Desert Mavericks. |
| 06/13/11 | Seattle Mariners signed RHP Max Krakowiak. |
| 06/13/11 | Seattle Mariners signed OF Kenneth Straus. |
| 06/13/11 | Seattle Mariners signed OF Nathan Melendres. |
| 06/13/11 | Seattle Mariners signed C Michael Dowd. |
| 06/13/11 | Seattle Mariners signed 2B Dillon Hazlett. |
| 06/13/11 | Seattle Mariners signed OF Jamal Austin. |
| 06/13/11 | Seattle Mariners signed RHP David Colvin. |
| 06/13/11 | Seattle Mariners signed 2B Daniel Paolini. |
| 06/13/11 | Seattle Mariners signed RHP Brett Shankin. |
| 06/13/11 | Seattle Mariners signed LHP Kyle Hunter. |
| 06/13/11 | Seattle Mariners signed RHP Bobby Shore. |
| 06/13/11 | Seattle Mariners signed C David Villasuso. |
| 06/13/11 | Seattle Mariners signed RHP Alex Sunderland. |
| 06/13/11 | Seattle Mariners signed free agent RHP Jason Buursma to a minor league contract. |
| 06/13/11 | Seattle Mariners signed LHP Jordan Shipers. |
| 06/13/11 | Seattle Mariners signed LHP Cam Hobson. |
| 06/13/11 | Seattle Mariners signed RHP Joe DiRocco. |
| 06/13/11 | Seattle Mariners signed free agent LHP Tony Butler to a minor league contract. |
| 06/13/11 | Seattle Mariners signed RHP Cody Weiss. |
| 06/08/11 | Seattle Mariners optioned LF Mike Wilson to Tacoma Rainiers. |
| 06/08/11 | Seattle Mariners recalled Mike Carp from Tacoma Rainiers. |
| 06/03/11 | Seattle Mariners recalled Greg Halman from Tacoma Rainiers. |
| 06/03/11 | Seattle Mariners optioned CF Michael Saunders to Tacoma Rainiers. |