| Date/Season | Transaction |
|---|---|
| 1/12/2021 | Philadelphia Flyers send Mason McDonald, Bode Wilde, LA 2026 Rnd 3, DAL 2028 Rnd 2, $6,000,000 to the Dallas Stars for Matt O'Connor, Moirtz Seider |
| 6/21/2018 | Philadelphia Flyers send CBJ 2024 Rnd 3, PHI 2026 Rnd 3 to the Boston Bruins for Mason McDonald |
| 4/28/2016 | Calgary Flames send Timo Pielmeier, Mason McDonald to the Boston Bruins for Jhonas Enroth, Hannu Toivonen, BOS 2021 Rnd 3 |
| 2020 | Drafted in the 2nd round, 34th overall by Calgary (from Carolina) |
