

| Regular Season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | League | Team | GP | G | A | Pts | PIM | +/- | GP | G | A | Pts | PIM | +/- |
| 2015-16 | USHL | USNTDP Juniors | 2 | 2 | 0 | 2 | 2 | 1 | -- | -- | -- | -- | -- | -- |
| 2016-17 | USHL | Green Bay Gamblers | 24 | 13 | 17 | 30 | 2 | 3 | -- | -- | -- | -- | -- | -- |
| 2017-18 | NCAA | Univ. of Minnesota | 34 | 11 | 19 | 30 | 10 | 4 | -- | -- | -- | -- | -- | -- |
| 2017-18 | NHL | Buffalo Sabres | 6 | 1 | 4 | 5 | 2 | 1 | -- | -- | -- | -- | -- | -- |
| 2018-19 | NHL | Buffalo Sabres | 77 | 12 | 13 | 25 | 10 | -19 | -- | -- | -- | -- | -- | -- |
| 2019-20 | AHL | Rochester Americans | 36 | 9 | 16 | 25 | 6 | -15 | -- | -- | -- | -- | -- | -- |
| 2019-20 | NHL | Buffalo Sabres | 31 | 4 | 5 | 9 | 2 | -5 | -- | -- | -- | -- | -- | -- |
| 2020-21 | NHL | Buffalo Sabres | 41 | 10 | 12 | 22 | 10 | -10 | -- | -- | -- | -- | -- | -- |
| 2021-22 | NHL | Buffalo Sabres | 40 | 6 | 13 | 19 | 4 | -14 | -- | -- | -- | -- | -- | -- |
| 2022-23 | NHL | Buffalo Sabres | 82 | 15 | 44 | 59 | 22 | -8 | -- | -- | -- | -- | -- | -- |
| 2023-24 | NHL | Buffalo Sabres | 62 | 14 | 33 | 47 | 28 | 12 | -- | -- | -- | -- | -- | -- |
| 2023-24 | NHL | Colorado Avalanche | 18 | 4 | 6 | 10 | 4 | -2 | 11 | 3 | 6 | 9 | 2 | 0 |
| 2024-25 | NHL | Colorado Avalanche | 63 | 11 | 23 | 34 | 20 | -12 | -- | -- | -- | -- | -- | -- |
| 2024-25 | NHL | Boston Bruins | 18 | 4 | 2 | 6 | 4 | -17 | -- | -- | -- | -- | -- | -- |
| 2025-26 | NHL | Boston Bruins | 56 | 13 | 20 | 33 | 6 | 9 | -- | -- | -- | -- | -- | -- |
| NHL TOTALS | 494 | 94 | 175 | 269 | 112 | -65 | 11 | 3 | 6 | 9 | 2 | 0 | ||
| Year | Tournament | Team | GP | G | A | Pts | PIM | +/- |
|---|---|---|---|---|---|---|---|---|
| 2018 | World Junior U-20 Championships | Team USA | 7 | 4 | 7 | 11 | 2 | 8 |