| Date/Season | Transaction |
|---|---|
| 9/16/2020 | Vegas Golden Knights send Simon Hjalmarsson to the Columbus Blue Jackets for Christian Fischer, Two 2nds To Be Named Later |
| 9/8/2020 | Buffalo Sabres send Ryan McDonagh, Christian Fischer to the Columbus Blue Jackets for Derrick Pouliot, Logan Stanley, NAS 2026 Rnd 1 |
| 2021 | Drafted in the 2nd round, 35th overall by Buffalo |
