| Date/Season | Transaction |
|---|
| 6/27/2020 | St Louis Blues send Marek Schwarz (rental) to the Nashville Predators for 2026 EDM Rnd 2, $1,000,000 |
| 1/15/2020 | St Louis Blues send EDM 2026 Rnd 2 to the Nashville Predators for Marek Schwarz |
| 10/16/2019 | Los Angeles Kings send Marek Schwarz to the Nashville Predators for Jeremy Price |
| 6/2/2015 | Toronto Maple Leafs send Keith Seabrook, Marek Schwarz, Mikko Koivu, Simon Hjalmarsson, TOR 2021 Rnd 2 to the Los Angeles Kings for Brian Elliott, Drew Shore, Marc Andre Cliche, Shea Weber, LA 2022 Rnd 1 |
| 11/18/2013 | Nashville Predators send Joel Ward, Marek Schwarz to the Toronto Maple Leafs for Chet Pickard, TOR 2018 Rnd 2, TOR 2020 Rnd 1
|
| 10/20/2013 | St Louis Blues send Chris Summers, Marek Schwarz, Thomas Vanek, STL 2019 Rnd 2, STL 2023 Rnd 1 to the Nashville Predators for Matt Lashoff, Ruslan Khasanshin, Thomas McCollum |
| 1/26/2012 | Anaheim Ducks send Marek Schwarz to the St Louis Blues for Cristobal Huet, STL 2015 Rnd 1, 5th overall pick in Inclusion Draft |
| 9/16/2011 | Winnipeg Jets send Marc-Antoine Pouliot, Marek Schwarz, Viktor Stalberg, WPG 2015 Rnd 1 to the Anaheim Ducks for Cam Ward, Dany Heatley, Jarred Tinordi, Louie Caporusso |
| 2007 | Drafted in the 1st round, 15th overall by Calgary (from San Jose) |
