| Date/Season | Transaction |
|---|
| 8/1/2018 | Toronto Maple Leafs send David Perron, J.T. Miller, Theo Peckham to the Calgary Flames for Alexei Semenov, Dustin Jeffrey, $1,000,000 |
| 4/19/2017 | Los Angeles Kings send Theo Peckham, PIT 2024 Rnd 3 to the Toronto Maple Leafs for Matt Halischuk, Ryan Ellis |
| 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 |
| 11/5/2011 | Pittsburgh Penguins send Jonas Junland, Shaone Morrisonn to the Anaheim Ducks for John Erskine, Theo Peckham |
| 2010 | Drafted in the 3rd round, 65th overall by New Jersey |
