| Date/Season | Transaction |
|---|
| 5/27/2022 | Columbus Blue Jackets send Kyle Beach, STL 2028 Rnd 3 to the St Louis Blues for Gunnar Stahl (rental) |
| 6/29/2020 | New Jersey Devils send Gunnar Stahl (rental) to the Chicago Blackhawks for Nicolas Deschamps, CHI 2025 Rnd 2, CHI 2025 Rnd 3, $6,000,000 |
| 6/27/2020 | Nashville Predators send Gunnar Stahl, Jeff Finger, Derek Stepan, BUF 2027 Rnd 2, $2,500,000 to the New Jersey Devils for Jamie Devane, Nick Leddy (rental), NJD 2025 Rnd 3, BUF 2026 Rnd 3 |
| 1/28/2019 | Philadelphia Flyers send Gunnar Stahl, BOS 2023 Rnd 2 to the Nashville Predators for Joe Basaraba, Patric Hornqvist, Thomas Vanek, VAN 2023 Rnd 1, DET 2025 Rnd 2, $350,000 |
| 4/25/2016 | Philadelphia Flyers send Tuomo Ruutu, PHI 2021 Rnd 1, $235,000 to the Colorado Avalanche for Filip Forsberg, Gunnar Stahl, COL 2022 Rnd 2 |
| 6/20/2014 | Montreal Canadiens send $5,000,000 to the Boston Bruins for Gunnar Stahl |
| 2/7/2013 | Ottawa Senators send Olli Jokinen to the San Jose Sharks for Gunnar Stahl, Ryan Stoa, SJS 2018 Rnd 2 |
| 12/3/2012 | San Jose Sharks send Joe Pavelski, $750,000 to the Buffalo Sabres for Gunnar Stahl |
| 10/25/2012 | Edmonton Oilers send Gunnar Stahl, Jared Aulin to the Buffalo Sabres for J.T. Miller, Joffrey Lupul, Simon Gagne, BUF 2017 Rnd 2, BUF 2017 Rnd 4 |
| 5/14/2012 | Edmonton Oilers send Jordan Leopold to the Philadelphia Flyers for Gunnar Stahl |
| 11/2/2011 | Philadelphia Flyers send Craig Anderson, Jordan Leopold, OTT 2015 Rnd 2 to the Edmonton Oilers for David Rundblad, Gunnar Stahl, Kyle Beach, Rick Dipietro |
| 8/25/2011 | Pittsburgh Penguins send Gunnar Stahl, Patrick Berglund, Sebastian Wannstrom to the Edmonton Oilers for Jiri Hudler, Jordan Smith |
| 2008 | Drafted in the 1st round, 22nd overall by Boston (from Ottawa) |
