Casey Mittelstadt trades
| Colorado Avalanche acquire | Date | Boston Bruins acquire | ||
|---|---|---|---|---|
 | Charlie Coyle | March 7, 2025 | Casey Mittelstadt |  |
| 2026 5th round pick | William Zellers | |||
| 2025 2nd round pick | ||||
| Colorado Avalanche acquire | Date | Buffalo Sabres acquire | ||
|---|---|---|---|---|
| Casey Mittelstadt | March 6, 2024 | Bowen Byram |  |