| Regular Season | Playoffs | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | Lge | GP | G | A | Pts | PIM | +/- | GP | G | A | Pts | PIM |
| 2012-13 | U.S. National Development Team | USHL | 38 | 8 | 7 | 15 | 28 | -19 | — | — | — | — | — |
| 2013-14 | U.S. National Under-18 Team | USHL | 26 | 9 | 12 | 21 | 0 | 14 | — | — | — | — | — |
| 2014-15 | Notre Dame | H-East | 41 | 7 | 15 | 22 | 14 | -3 | |||||
| 2015-16 | Notre Dame | H-East | 35 | 12 | 23 | 35 | 8 | 28 | |||||
| 2016-17 | Notre Dame | H-East | 39 | 21 | 31 | 52 | 16 | 17 | |||||
| 2017-18 | Boston Bruins | NHL | 30 | 4 | 8 | 12 | 6 | 2 | — | — | — | — | — |
| 2017-18 | Providence Bruins | AHL | 9 | 2 | 2 | 4 | 2 | -1 | — | — | — | — | — |
| 2018-19 | Boston Bruins | NHL | 20 | 1 | 2 | 3 | 2 | -1 | — | — | — | — | — |
| 2018-19 | Providence Bruins | AHL | 13 | 1 | 9 | 10 | 2 | -3 | — | — | — | — | — |
| 2019-20 | Providence Bruins | AHL | 7 | 3 | 5 | 8 | 4 | 5 | |||||
| 2019-20 | Boston Bruins | NHL | 58 | 9 | 10 | 19 | 10 | 5 | 10 | 0 | 1 | 1 | 6 |
| 2020-21 | Boston Bruins | NHL | 30 | 2 | 3 | 5 | 10 | -8 | — | — | — | — | — |
| 2020-21 | Buffalo Sabres | NHL | 15 | 3 | 3 | 6 | 4 | -5 | — | — | — | — | — |
| 2021-22 | Buffalo Sabres | NHL | 58 | 5 | 3 | 8 | 10 | -14 | — | — | — | — | — |
| 2022-23 | Buffalo Sabres | NHL | 1 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — |
| 2022-23 | Rochester Americans | AHL | 42 | 8 | 17 | 25 | 16 | 5 | — | — | — | — | — |
| 2022-23 | Chicago Blackhawks | NHL | 13 | 2 | 6 | 8 | 2 | 4 | — | — | — | — | — |
| 2023-24 | Rockford IceHogs | AHL | 40 | 10 | 17 | 27 | 10 | -8 | — | — | — | — | — |
| 2024-25 | Milwaukee Admirals | AHL | 31 | 4 | 8 | 12 | 8 | 7 | — | — | — | — | — |
| NHL Totals | 225 | 26 | 35 | 61 | 44 | 10 | 0 | 1 | 1 | 6 | |||
| Admirals Totals | 31 | 4 | 8 | 12 | 8 | ||||||||