| Transactions | ||||||
| Date | Team | Player | Type | OthTm | EffDate | When |
| 4/2/2009 | LON | Aardsma | Acquired via trade | EDG | After | |
| 4/2/2009 | LON | Marshall,S | Traded away | EDG | After | |
| 4/16/2009 | MAD | Kendall | Signed | Before | ||
| 4/16/2009 | ROK | Liriano | Demoted to reserve roster | Before | ||
| 4/16/2009 | ROK | Palmer | Demoted to reserve roster | Before | ||
| 4/16/2009 | ROK | Palmer | Promoted to active roster | Before | ||
| 4/16/2009 | ROK | Pie | Signed | Before | ||