

| Regular Season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | League | Team | GP | G | A | Pts | PIM | +/- | GP | G | A | Pts | PIM | +/- |
| 2011-12 | QMJHL | Quebec | 63 | 31 | 35 | 66 | 50 | 38 | 11 | 3 | 5 | 8 | 8 | -5 |
| 2012-13 | QMJHL | Quebec | 55 | 20 | 30 | 50 | 22 | 23 | 11 | 3 | 5 | 8 | 12 | 0 |
| 2013-14 | QMJHL | Quebec | 59 | 50 | 49 | 99 | 56 | 19 | -- | -- | -- | -- | -- | -- |
| 2014-15 | QMJHL | Quebec | 26 | 15 | 19 | 34 | 24 | 3 | 22 | 8 | 18 | 26 | 18 | 17 |
| 2014-15 | NHL | New York Rangers | 18 | 1 | 6 | 7 | 4 | 4 | -- | -- | -- | -- | -- | -- |
| 2015-16 | NHL | Arizona Coyotes | 81 | 20 | 24 | 44 | 49 | 12 | -- | -- | -- | -- | -- | -- |
| 2016-17 | AHL | Tucson Roadrunners | 16 | 1 | 7 | 8 | 4 | -11 | -- | -- | -- | -- | -- | -- |
| 2016-17 | NHL | Arizona Coyotes | 58 | 5 | 10 | 15 | 14 | -7 | -- | -- | -- | -- | -- | -- |
| 2017-18 | NHL | Arizona Coyotes | 33 | 9 | 6 | 15 | 10 | -5 | -- | -- | -- | -- | -- | -- |
| 2017-18 | NHL | Chicago Blackhawks | 23 | 2 | 6 | 8 | 6 | 0 | -- | -- | -- | -- | -- | -- |
| 2018-19 | NHL | Columbus Blue Jackets | 53 | 11 | 8 | 19 | 12 | -3 | -- | -- | -- | -- | -- | -- |
| 2018-19 | NHL | Ottawa Senators | 21 | 8 | 6 | 14 | 2 | 1 | -- | -- | -- | -- | -- | -- |
| 2019-20 | NHL | Ottawa Senators | 66 | 23 | 17 | 40 | 18 | -5 | -- | -- | -- | -- | -- | -- |
| 2020-21 | NHL | Florida Panthers | 43 | 10 | 22 | 32 | 18 | 27 | 6 | 0 | 0 | 0 | 6 | -3 |
| 2021-22 | NHL | Florida Panthers | 74 | 31 | 27 | 58 | 30 | 19 | 8 | 1 | 2 | 3 | 4 | 4 |
| 2022-23 | NHL | Florida Panthers | 20 | 2 | 7 | 9 | 2 | 4 | 20 | 4 | 7 | 11 | 16 | -6 |
| 2023-24 | NHL | San Jose Sharks | 56 | 16 | 11 | 27 | 28 | -12 | -- | -- | -- | -- | -- | -- |
| 2023-24 | NHL | Tampa Bay Lightning | 17 | 8 | 7 | 15 | 6 | 4 | 5 | 0 | 2 | 2 | 0 | -3 |
| 2024-25 | NHL | New York Islanders | 44 | 7 | 4 | 11 | 10 | -15 | -- | -- | -- | -- | -- | -- |
| 2025-26 | NHL | New York Islanders | 57 | 12 | 15 | 27 | 12 | 0 | -- | -- | -- | -- | -- | -- |
| NHL TOTALS | 664 | 165 | 176 | 341 | 221 | 24 | 39 | 5 | 11 | 16 | 26 | -8 | ||
| Year | Tournament | Team | GP | G | A | Pts | PIM | +/- |
|---|---|---|---|---|---|---|---|---|
| 2015 | World Junior U-20 Championships | Team Canada | 7 | 4 | 4 | 8 | 16 | 11 |
| 2015 | Memorial Cup | Quebec | 5 | 2 | 2 | 4 | 6 | 4 |