| Start Date | End Date | #Days | Status | MLB Team | Minor Team | 40-Man | Transaction Description |
| 2013-04-17 | Current | -- | Active | Pittsburgh Pirates | Yes | Contract purchased from Indianapolis (AAA) | |
| 2013-04-06 | 2013-04-17 | 12 | Minors | Pittsburgh Pirates | Indianapolis (AAA) | Assigned to Indianapolis (AAA) | |
| 2013-02-10 | 2013-04-06 | 56 | Minors | Pittsburgh Pirates | Outrighted to minors | ||
| 2012-11-28 | 2013-02-10 | 75 | Active | Pittsburgh Pirates | Yes | Traded from Royals with Clint Robinson to Pirates for Luis Rico and Luis Santos | |
| 2012-11-20 | 2012-11-28 | 9 | DFA | Kansas City Royals | Designated for assignment | ||
| 2012-08-27 | 2012-11-20 | 86 | Active | Kansas City Royals | Yes | Recalled from Omaha (AAA) | |
| 2012-07-19 | 2012-08-27 | 40 | Minors | Kansas City Royals | Omaha (AAA) | Yes | Optioned to Omaha (AAA) |
| 2012-07-17 | 2012-07-19 | 3 | Active | Kansas City Royals | Yes | Recalled from Omaha (AAA) | |
| 2012-07-03 | 2012-07-17 | 15 | Minors | Kansas City Royals | Omaha (AAA) | Yes | Optioned to Omaha (AAA) |
| 2012-05-28 | 2012-07-03 | 37 | Active | Kansas City Royals | Yes | Recalled from Omaha (AAA) | |
| 2012-05-17 | 2012-05-28 | 12 | Minors | Kansas City Royals | Yes | Optioned to Omaha (AAA) | |
| 2012-05-08 | 2012-05-17 | 10 | Active | Kansas City Royals | Yes | Recalled from Omaha (AAA) |
| Date | Notes |
| 2010-11-10 | Traded by Athletics with Justin Marks to Royals for David DeJesus |
| Drafted: Selected by Oakland Athletics in 3rd round (101st overall) of 2005 Amateur Draft (June-Reg Phase) | |