| Date/Season | Transaction |
|---|
| 5/12/2021 | New York Rangers send Marcus Foligno to the Detroit Red Wings for Sebastian Wannstrom |
| 10/18/2018 | Minnesota Wild send $5,000,000 to the New Jersey Devils for Sebastian Wannstrom |
| 10/5/2018 | Nashville Predators send Jamie McGinn, Sebastian Wannstrom, MON 2023 Rnd 2, WSH 2023 Rnd 2 to the New Jersey Devils for Fedor Tjutin (rental), Josh Gorges |
| 7/2/2018 | Nashville Predators send Carl Klingberg, Chris Stewart, Maxim Talbot, Nino Niederreiter to the Pittsburgh Penguins for Marcel Goc, Sebastian Wannstrom, Zach Parise, VAN 2023 Rnd 1, PIT 2027 Rnd 1 |
| 7/20/2015 | Florida Panthers send Sebastian Wannstrom, CHI 2021 Rnd 3 to the Dallas Stars for Derek Stepan, DAL 2021 Rnd 2 |
| 2/22/2015 | Toronto Maple Leafs send Sebastian Wannstrom to the Florida Panthers for Dylan Olsen |
| 4/5/2013 | Toronto Maple Leafs send Bret Nasby, Casey Wellman, Mattias Ritola, Steve Bernier to the Pittsburgh Penguins for Charles-Olivier Rousse, Dan Spang, Michal Repik, Sebastian Wannstrom, $2,000,000 |
| 8/25/2011 | Pittsburgh Penguins send Gunnar Stahl, Patrick Berglund, Sebastian Wannstrom to the Edmonton Oilers for Jiri Hudler, Jordan Smith |
| 2014 | Drafted in the 2nd round, 41st overall by Pittsburgh (from Carolina) |
