| Date/Season | Transaction |
|---|
| 2/8/2022 | Nashville Predators send Erik Haula to the Calgary Flames for John Gaudreau, PIT 2029 Rnd 3 |
| 4/4/2021 | Calgary Flames send $1,000,000 to the Buffalo Sabres for John Gaudreau |
| 9/8/2020 | Washington Capitals send Brendan Gallagher, John Gaudreau, BOS 2026 Rnd 2 to the Buffalo Sabres for Erik Gudbranson, $1,000,000 |
| 3/19/2018 | Washington Capitals send Joe Pavelski, Nino Niederreiter, WSH 2023 Rnd 2 to the Nashville Predators for John Gaudreau, $750,000 |
| 2018 | Drafted in the 1st round, 7th overall by Nashville (from Colorado) |
