| Season | Team | League | GP | G | A | TP | PIM | Playoffs | GP | G | A | TP | PIM | |
| 2010-2011 | Chicago Mission 14U AAA | T1EHL 14U | 31 | 10 | 11 | 21 | 8 | | | ||||||
| 2011-2012 | Chicago Mission 16U AAA | HPHL 16U | 29 | 14 | 9 | 23 | 8 | | | ||||||
| 2012-2013 | USNTDP Juniors | USHL | 38 | 8 | 7 | 15 | 28 | | | ||||||
| U.S. National U17 Team | NTDP | 56 | 12 | 12 | 24 | 48 | | | |||||||
| USA U17 | WHC-17 | 6 | 0 | 1 | 1 | 8 | | | |||||||
| 2013-2014 | USNTDP Juniors | USHL | 26 | 9 | 12 | 21 | 0 | | | ||||||
| U.S. National U18 Team | NTDP | 61 | 21 | 21 | 42 | 10 | | | |||||||
| USA U18 | WJC-18 | 7 | 2 | 0 | 2 | 4 | | | |||||||
| 2014-2015 | Univ. of Notre Dame | NCAA | 41 | 7 | 15 | 22 | 14 | | | ||||||
| 2015-2016 | Univ. of Notre Dame | NCAA | 35 | 12 | 23 | 35 | 8 | | | ||||||
| USA U20 | WJC-20 | 7 | 3 | 0 | 3 | 0 | | | |||||||
| 2016-2017 | Univ. of Notre Dame | NCAA | 39 | 21 | 31 | 52 | 16 | | | ||||||
| USA | WC | 5 | 0 | 0 | 0 | 0 | | | |||||||
| 2017-2018 | Boston Bruins | NHL | 30 | 4 | 8 | 12 | 6 | | | ||||||
| Providence Bruins | AHL | 9 | 2 | 2 | 4 | 2 | | | |||||||
| 2018-2019 | Boston Bruins | NHL | 20 | 1 | 2 | 3 | 2 | | | ||||||
| Providence Bruins | AHL | 13 | 1 | 9 | 10 | 2 | | | |||||||
| 2019-2020 | Boston Bruins | NHL | 58 | 9 | 10 | 19 | 10 | | | Playoffs | 10 | 0 | 1 | 1 | 6 |
| Providence Bruins | AHL | 7 | 3 | 5 | 8 | 4 | | | |||||||
| 2020-2021 | Boston Bruins | NHL | 30 | 2 | 3 | 5 | 10 | | | ||||||
| Buffalo Sabres | NHL | 15 | 3 | 3 | 6 | 4 | | | |||||||
| 2021-2022 | Buffalo Sabres | NHL | 58 | 5 | 3 | 8 | 10 | | | ||||||
| 2022-2023 | Buffalo Sabres | NHL | 1 | 0 | 0 | 0 | 0 | | | ||||||
| Rochester Americans | AHL | 42 | 8 | 17 | 25 | 16 | | | |||||||
| Chicago Blackhawks | NHL | 13 | 2 | 6 | 8 | 2 | | | |||||||
| USA | WC | 10 | 0 | 2 | 2 | 2 | | | |||||||
| 2023-2024 | Rockford IceHogs | AHL | 40 | 10 | 17 | 27 | 10 | | |