| Date/Season | Transaction |
|---|
| 9/4/2022 | New York Rangers send Kody Clark to the Edmonton Oilers for Michael Forney, Oscar Moller |
| 3/29/2022 | Arizona Coyotes send Oscar Moller, SJS 2028 Rnd 3 to the Edmonton Oilers for John Ramage, EDM 2032 Rnd 2 |
| 4/4/2021 | Calgary Flames send BOS 2027 Rnd 2 to the Boston Bruins for Oscar Moller |
| 9/6/2020 | Boston Bruins send Jake Guentzel, Philippe Myers, BOS 2027 Rnd 2nd to the Calgary Flames for Oscar Moller, Jack Johnson, Jeremy Bracco |
| 2/20/2015 | Vancouver Canucks send Darren Helm, Oscar Moller, VAN 2019 Rnd 1 to the Calgary Flames for Dan Catenacci, Jake Gardiner |
| 11/26/2013 | Nashville Predators send Chris Summers, Oscar Moller to the Boston Bruins for Shaone Morrisonn |
| 3/11/2013 | Boston Bruins send Jack Johnson, Oscar Moller to the Nashville Predators for Dustin Brown, Jim Fahey, Oliver Ekman-Larsson, $2,500,000 |
| 11/8/2012 | Pittsburgh Penguins send Oscar Moller to the Boston Bruins for Henrik Zetterberg
|
| 10/19/2012 | Pittsburgh Penguins send BOS 2016 Rnd 2, CAR 2016 Rnd 2, $2,000,000 to the Colorado Avalanche for Oscar Moller |
| 10/11/2011 | Boston Bruins send Jordan Schroeder, Manny Malhotra, Matt Jones, Oscar Moller, 6th overall pick in Inclusion Draft to the Colorado Avalanche for Benn Ferriero, Jake Dowell, Kyle Wellwood, Mike Komisarek |
| 1/27/2011 | Boston Bruins send Paul Stastny, BOS 2014 Rnd 4 to the Calgary Flames for Oscar Moller, NJD 2014 Rnd 2 |
| 5/31/2010 | New York Rangers send Oscar Moller, $500,000 to the Calgary Flames for Andrew Ference |
| 2011 | Drafted in the 2nd round, 42nd overall by NYRangers |
