| Date/Season | Transaction |
|---|
| 12/16/2020 | Minnesota Wild send Ryan Murray to the Buffalo Sabres for Sebastian Aho, Brett Pesce, BUF 2028 Rnd 1 |
| 9/8/2020 | St Louis Blues send Nick Suzuki, Sebastian Aho to the Buffalo Sabres for Noah Rod, Ty Smith, OTT 2025 Rnd 2, $1,000,000 |
| 1/15/2020 | Ottawa Senators send Sebastian Aho to the St Louis Blues for Antti Niemi |
| 2/11/2019 | Ottawa Senators send Nick Palmieri to the Boston Bruins for Sebastian Aho |
| 5/9/2016 | Florida Panthers send Michal Repik, Sebastian Aho to the Boston Bruins for Kirill Kabanov |
| 2021 | Drafted in the 2nd round, 42nd overall by Florida (from Minnesota) |
