Statistics
Regular Season Stats
| 2009-10 | QC Int PW | New York Jr. Rangers | 3 | 1 | 1 | 2 | - | - | - | 2 |
| 2011-12 | AYHL 14U | Long Island Gulls 14U AAA | 15 | 0 | 4 | 4 | - | - | - | 20 |
| 2012-13 | MetJHL | New Jersey Rockets | 42 | 15 | 39 | 54 | 0 | - | - | 47 |
| 2013-14 | USHL | USNTDP | 34 | 4 | 6 | 10 | 1 | 42 | 9.5% | 56 |
| 2013-14 | U-17 | USNTDP | 20 | 3 | 6 | 9 | - | - | - | 4 |
| 2014-15 | USHL | USNTDP | 23 | 3 | 16 | 19 | 20 | 42 | 7.1% | 33 |
| 2014-15 | U-18 | USNTDP | 40 | 4 | 17 | 21 | - | - | - | 18 |
| 2015-16 | NCAA | Boston Univ. | 37 | 3 | 22 | 25 | 10 | - | - | 56 |
| 2016-17 | NCAA | Boston Univ. | 38 | 5 | 21 | 26 | 9 | - | - | 51 |
| 2016-17 | AHL | Providence Bruins | 4 | 0 | 2 | 2 | 3 | - | - | 4 |
| 2017-18 | NHL | Boston Bruins | 63 | 7 | 25 | 32 | 20 | 77 | 9.1% | 53 |
| 2018-19 | NHL | Boston Bruins | 54 | 7 | 21 | 28 | 14 | 79 | 8.9% | 45 |
| 2019-20 | NHL | Boston Bruins | 67 | 5 | 27 | 32 | 24 | 101 | 5.0% | 41 |
| 2020-21 | NHL | Boston Bruins | 51 | 5 | 25 | 30 | 22 | 92 | 5.4% | 38 |
| 2021-22 | NHL | Boston Bruins | 78 | 10 | 46 | 56 | 31 | 166 | 6.0% | 66 |
| 2022-23 | NHL | Boston Bruins | 67 | 7 | 45 | 52 | 29 | 105 | 6.7% | 54 |
| 2023-24 | NHL | Boston Bruins | 74 | 12 | 35 | 47 | 4 | 133 | 9.0% | 86 |
| 2024-25 | NHL | Boston Bruins | 50 | 7 | 16 | 23 | 0 | 98 | 7.1% | 46 |
| 2025-26 | NHL | Boston Bruins | 32 | 1 | 22 | 23 | -5 | 49 | 2.0% | 34 |
| NHL Totals | – | 536 | 61 | 262 | 323 | 139 | 900 | 6.8% | 463 | |
| AHL Totals | – | 4 | 0 | 2 | 2 | 3 | - | - | 4 | |
| Juniors Totals | – | 132 | 15 | 65 | 80 | 40 | 84 | 17.9% | 196 | |
Playoff Stats
| 2012-13 | AtJHL | New Jersey Rockets | 1 | 0 | 0 | 0 | - | - | - | 0 |
| 2016-17 | NHL | Boston Bruins | 6 | 0 | 3 | 3 | -2 | 5 | 0.0% | 2 |
| 2017-18 | NHL | Boston Bruins | 12 | 1 | 4 | 5 | 2 | 8 | 12.5% | 6 |
| 2018-19 | NHL | Boston Bruins | 23 | 2 | 6 | 8 | 4 | 25 | 8.0% | 16 |
| 2019-20 | NHL | Boston Bruins | 13 | 1 | 3 | 4 | -6 | 29 | 3.4% | 24 |
| 2020-21 | NHL | Boston Bruins | 11 | 1 | 11 | 12 | 2 | 30 | 3.3% | 4 |
| 2021-22 | NHL | Boston Bruins | 6 | 0 | 5 | 5 | 2 | 11 | 0.0% | 4 |
| 2022-23 | NHL | Boston Bruins | 7 | 0 | 5 | 5 | -3 | 15 | 0.0% | 8 |
| 2023-24 | NHL | Boston Bruins | 13 | 1 | 5 | 6 | -4 | 23 | 4.3% | 20 |
| NHL Totals | – | 91 | 6 | 42 | 48 | -5 | 146 | 4.1% | 84 | |
Last 5 Games
| Season | Opponent | Date | G | A | P | +/- | PIM | PPG | SHG | S | Shifts | TOI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Regular | vs CGY | Jan 8 | 0 | 1 | 1 | 1 | 2 | 0 | 0 | 0 | 26 | 24:01 |
| Regular | @ SEA | Jan 6 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 3 | 28 | 23:51 |
| Regular | @ VAN | Jan 3 | 0 | 1 | 1 | -1 | 0 | 0 | 0 | 0 | 30 | 25:35 |
| Regular | @ EDM | Dec 31 | 0 | 1 | 1 | 0 | 2 | 0 | 0 | 1 | 27 | 22:30 |
| Regular | @ CGY | Dec 29 | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 2 | 31 | 26:44 |