| Season | Team | League | GP | G | A | TP | PIM | Playoffs | GP | G | A | TP | PIM | |
| 2008-2009 | Belmont Hill School | USHS-Prep | - | - | - | - | - | | | ||||||
| 2009-2010 | Belmont Hill School | USHS-Prep | 30 | 13 | 17 | 30 | - | | | ||||||
| 2010-2011 | Belmont Hill School | USHS-Prep | 32 | 23 | 12 | 35 | 30 | | | ||||||
| 2011-2012 | South Shore Kings | EJHL | 45 | 48 | 43 | 91 | 52 | | | Playoffs | 6 | 5 | 3 | 8 | 2 |
| Team EJHL | JCWC | 3 | 3 | 0 | 3 | 0 | | | |||||||
| 2012-2013 | Harvard Univ. | NCAA | 27 | 11 | 7 | 18 | 25 | | | ||||||
| USA U20 | WJC-20 | 7 | 1 | 4 | 5 | 2 | | | |||||||
| 2013-2014 | Harvard Univ. | NCAA | 31 | 13 | 9 | 22 | 14 | | | ||||||
| 2014-2015 | Harvard Univ. | NCAA | 37 | 32 | 26 | 58 | 21 | | | ||||||
| USA | WC | 9 | 0 | 3 | 3 | 0 | | | |||||||
| 2015-2016 | Harvard Univ. | NCAA | 33 | 24 | 22 | 46 | 6 | | | ||||||
| 2016-2017 | New York Rangers | NHL | 80 | 16 | 11 | 27 | 26 | | | Playoffs | 12 | 1 | 4 | 5 | 9 |
| 2017-2018 | New York Rangers | NHL | 79 | 17 | 11 | 28 | 20 | | | ||||||
| 2018-2019 | New York Rangers | NHL | 81 | 17 | 18 | 35 | 21 | | | ||||||
| 2019-2020 | Buffalo Sabres | NHL | 64 | 9 | 11 | 20 | 15 | | | ||||||
| 2020-2021 | Toronto Maple Leafs | NHL | 30 | 5 | 2 | 7 | 4 | | | ||||||
| Vancouver Canucks | NHL | 20 | 0 | 3 | 3 | 6 | | | |||||||
| 2021-2022 | New Jersey Devils | NHL | 68 | 8 | 7 | 15 | 12 | | | ||||||
| 2022-2023 | New York Rangers | NHL | 81 | 11 | 14 | 25 | 20 | | | Playoffs | 7 | 0 | 1 | 1 | 10 |
| 2023-2024 | New York Rangers | NHL | 80 | 13 | 13 | 26 | 20 | | | Playoffs | 12 | 1 | 2 | 3 | 2 |
| 2024-2025 | New York Rangers | NHL | 33 | 4 | 2 | 6 | 0 | | | ||||||
| Colorado Avalanche | NHL | 10 | 1 | 1 | 2 | 0 | | | |||||||
| 2025-2026 | Genève-Servette HC | NL | 52 | 14 | 21 | 35 | 16 | | | Playoffs | 12 | 4 | 4 | 8 | 10 |
| 2026-2027 | Genève-Servette HC | NL | - | - | - | - | - | | |