| Date/Season | Transaction |
|---|---|
| 5/22/2012 | Ottawa Senators send Brendan Mikkelson, Carter Ashton to the Boston Bruins for Brent Burns, Ryan Bourque |
| 1/21/2011 | Ottawa Senators send David Fischer, Geoff Platt, $2,500,000 to the Philadelphia Flyers for Brendan Mikkelson, Ryan O'Marra |
| 12/5/2010 | Philadelphia Flyers send John Tavares, Lance Monych, Pavel Kubina to the Dallas Stars for Brendan Mikkelson, Pierre-Marc Bouchard |
| 2008 | Drafted in the 1st round, 20th overall by Ottawa (from Buffalo) |
