| Date/Season | Transaction |
|---|
| 5/25/2022 | Ottawa Senators send Mark Olver, OTT 2031 Rnd 1, $1,000,000 to the Calgary Flames for Daultan Leveille (rental) |
| 4/10/2021 | Ottawa Senators send OTT 2026 Rnd 3, $100,000 to the Buffalo Sabres for Mark Olver |
| 4/2/2021 | San Jose Sharks send Thomas Chabot, Mark Olver, Jake Gardiner, $2,000,000 to the Buffalo Sabres for Filip Johansson, Michael Matheson, Sergei Andronov, BUF 2030 Rnd 1 |
| 6/30/2020 | San Jose Sharks send Kyle Turris to the Edmonton Oilers for Mark Olver, Nick Palmeiri, BUF 2026 Rnd 1, NAS 2028 Rnd 2 |
| 1/27/2020 | Philadelphia Flyers send Mark Olver to the Edmonton Oilers for EDM 2024 Rnd 3, EDM 2028 Rnd 2 |
| 7/15/2016 | Toronto Maple Leafs send Evgeni Dadonov, Mark Olver to the Philadelphia Flyers for Milan Michalek, Taylor Beck, $2,650,000 |
| 2017 | Drafted in the 2nd round, 45th overall by Toronto |
