
| 2008-09 | QC Int PW | Richelieu Voyageurs | 2 | 0 | 0 | 0 | - | - | - | 0 |
| 2010-11 | RICBAA | Richelieu Éclaireurs Bantam AA | 34 | 29 | 25 | 54 | 0 | - | - | 44 |
| 2011-12 | Minor-QC | Antoine-Girouard | 27 | 27 | 13 | 40 | - | - | - | 52 |
| 2011-12 | QAAA | Antoine-Girouard | 9 | 1 | 1 | 2 | - | - | - | 4 |
| 2012-13 | QAAA | Antoine-Girouard | 41 | 39 | 25 | 64 | - | - | - | 22 |
| 2013-14 | QMJHL | Shawinigan | 64 | 9 | 24 | 33 | -27 | 178 | 5.1% | 26 |
| 2014-15 | QMJHL | Shawinigan | 67 | 42 | 52 | 94 | 16 | 337 | 12.5% | 72 |
| 2015-16 | QMJHL | Shawinigan | 47 | 40 | 39 | 79 | 21 | - | - | 57 |
| 2016-17 | NHL | New York Islanders | 66 | 9 | 15 | 24 | 1 | 101 | 8.9% | 10 |
| 2017-18 | NHL | New York Islanders | 71 | 21 | 15 | 36 | 2 | 132 | 15.9% | 16 |
| 2017-18 | AHL | Bridgeport Islanders | 3 | 2 | 0 | 2 | 2 | - | - | 0 |
| 2018-19 | NHL | New York Islanders | 81 | 18 | 10 | 28 | 1 | 156 | 11.5% | 8 |
| 2019-20 | NHL | New York Islanders | 68 | 18 | 21 | 39 | -11 | 132 | 13.6% | 15 |
| 2020-21 | NHL | New York Islanders | 47 | 15 | 13 | 28 | 15 | 109 | 13.8% | 12 |
| 2021-22 | NHL | New York Islanders | 75 | 12 | 22 | 34 | -10 | 154 | 7.8% | 12 |
| 2022-23 | NHL | New York Islanders | 49 | 9 | 11 | 20 | -4 | 113 | 8.0% | 10 |
| 2022-23 | NHL | Vancouver Canucks | 33 | 9 | 11 | 20 | -6 | 63 | 14.3% | 14 |
| 2023-24 | NHL | Vancouver Canucks | 22 | 2 | 6 | 8 | 8 | 37 | 5.4% | 4 |
| 2023-24 | NHL | Chicago Blackhawks | 23 | 2 | 4 | 6 | -10 | 36 | 5.6% | 2 |
| 2023-24 | NHL | Nashville Predators | 15 | 1 | 2 | 3 | -6 | 32 | 3.1% | 2 |
| 2024-25 | NHL | Pittsburgh Penguins | 63 | 13 | 7 | 20 | -1 | 120 | 10.8% | 14 |
| 2024-25 | NHL | Washington Capitals | 18 | 2 | 3 | 5 | 3 | 29 | 6.9% | 0 |
| 2025-26 | NHL | Washington Capitals | 45 | 9 | 6 | 15 | 7 | 94 | 9.6% | 16 |
| NHL Totals | – | 676 | 140 | 146 | 286 | -11 | 1308 | 10.7% | 135 | |
| AHL Totals | – | 3 | 2 | 0 | 2 | 2 | - | - | 0 | |
| Juniors Totals | – | 178 | 91 | 115 | 206 | 10 | 515 | 17.7% | 155 | |
| 2011-12 | QAAA | Antoine-Girouard | 1 | 0 | 0 | 0 | - | - | - | 0 |
| 2012-13 | QAAA | Antoine-Girouard | 13 | 5 | 10 | 15 | - | - | - | 24 |
| 2013-14 | QMJHL | Shawinigan | 4 | 0 | 0 | 0 | -3 | 10 | 0.0% | 8 |
| 2014-15 | QMJHL | Shawinigan | 7 | 2 | 5 | 7 | 1 | 42 | 4.8% | 14 |
| 2015-16 | QMJHL | Shawinigan | 21 | 15 | 15 | 30 | 12 | - | - | 16 |
| 2018-19 | NHL | New York Islanders | 8 | 1 | 1 | 2 | 0 | 15 | 6.7% | 0 |
| 2019-20 | NHL | New York Islanders | 22 | 9 | 5 | 14 | 6 | 67 | 13.4% | 10 |
| 2020-21 | NHL | New York Islanders | 19 | 5 | 8 | 13 | -1 | 53 | 9.4% | 4 |
| 2023-24 | NHL | Nashville Predators | 6 | 1 | 1 | 2 | 0 | 9 | 11.1% | 2 |
| 2024-25 | NHL | Washington Capitals | 10 | 2 | 4 | 6 | 1 | 21 | 9.5% | 2 |
| NHL Totals | – | 65 | 18 | 19 | 37 | 6 | 165 | 10.9% | 18 | |
| Juniors Totals | – | 32 | 17 | 20 | 37 | 10 | 52 | 32.7% | 38 | |
| Season | Opponent | Date | G | A | P | +/- | PIM | PPG | SHG | S | Shifts | TOI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Regular | @ CHI | Jan 9 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 3 | 21 | 17:54 |
| Regular | vs DAL | Jan 7 | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 3 | 17 | 17:45 |
| Regular | vs ANA | Jan 5 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 32 | 20:58 |
| Regular | vs CHI | Jan 3 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 3 | 25 | 20:07 |
| Regular | @ OTT | Jan 1 | 0 | 0 | 0 | -1 | 2 | 0 | 0 | 2 | 19 | 15:27 |