| Date/Season | Transaction |
|---|
| 3/11/2013 | Boston Bruins send Dan Spang to the Pittsburgh Penguins for Roman Tvrdon |
| 10/19/2012 | New Jersey Devils send Petr Prucha, Roman Tvrdon to the Pittsburgh Penguins for Antti Miettinen, Michal Neuvirth, Theo Peckham, $3,000,000 |
| 2/27/2012 | Florida Panthers send Jake Gardiner, Roman Tvrdon to the New Jersey Devils for Phillippe Seydoux, NJD 2016 Rnd 1, NJD 2017 Rnd 2 |
| 1/31/2010 | Philadelphia Flyers send PHI 2017 Rnd 4, PHI 2018 Rnd 4 to the Colorado Avalanche for Roman Tvrdon |
| 2006 | Drafted in the 3rd round, 84th overall by Toronto |
