| Date/Season | Transaction |
|---|
| 12/3/2023 | Columbus Blue Jackets send Marc Methot, Nolan Allan, TOR 2030 Rnd 2, TOR 2033 Rnd 3, $1,000,000 to the Boston Bruins for Brandon Gormley (rental), Ethan Werek |
| 8/19/2022 | New York Rangers send Rickard Rakell to the Columbus Blue Jackets for Ethan Werek, BUF 2028 Rnd 3 |
| 8/25/2021 | Seattle Kraken send Ethan Werek, Nicklas Jensen to the San Jose Sharks for Sergei Andronov (rental), Vladimir Tarasenko |
| 6/13/2021 | Seattle Kraken send Mattias Ekholm to the Buffalo Sabres for Ethan Werek, BUF 2032 Rnd 1 |
| 6/1/2021 | Seattle Kraken send Igor Bobkov, Ethan Werek, Zach Nastakiuk to the Buffalo Sabres for Chet Pickard, Mark Stone, Toni Rajala |
| 10/8/2020 | Seattle Kraken send Ty Rattie to the Calgary Flames for Danick Paquette, Ethan Werek, Michael Bournival |
| 3/15/2017 | UFA send Ethan Werek to the Toronto Maple Leafs for 2 years avg $1.56 million per year. (Year 1: $1.45 million, Year 2: $1.7 million) |
| 7/18/2016 | Washington Capitals send Perttu Lindgren, NYR 2021 Rnd 2, $2,000,000 to the Toronto Maple Leafs for Ethan Werek, Zack Smith |
| 7/2/2015 | Edmonton Oilers send Ethan Werek, Joseph Morrow, EDM 2020 Rnd 1, EDM 2024 Rnd 1 to the Toronto Maple Leafs for Scott Winkler, Taylor Hall, TOR 2021 Rnd 3 |
| 1/31/2013 | Philadelphia Flyers send Ethan Werek, Ryan Murray, PHI 2019 Rnd 1, $4,000,000 to the Edmonton Oilers for Dustin Byfuglien, Matt Read |
| 6/3/2012 | Philadelphia Flyers send Mark Giordano, Mikko Koivu to the Nashville Predators for Ethan Werek, COL 2016 Rnd 1, DAL 2016 Rnd 3, PHI 2017 Rnd 3 |
| 2/7/2012 | Nashville Predators send Eric Brewer to the San Jose Sharks for Ethan Werek, Robyn Regehr |
| 2013 | Drafted in the 3rd round, 61st overall by San Jose |
