

| Regular Season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | League | Team | GP | G | A | Pts | PIM | +/- | GP | G | A | Pts | PIM | +/- |
| 2012-13 | QMJHL | Moncton Wildcats | 68 | 18 | 44 | 62 | 36 | 0 | 5 | 1 | 2 | 3 | 0 | 0 |
| 2013-14 | QMJHL | Moncton Wildcats | 48 | 25 | 43 | 68 | 27 | -11 | 6 | 4 | 6 | 10 | 8 | 2 |
| 2014-15 | QMJHL | Moncton Wildcats | 57 | 45 | 50 | 95 | 59 | 16 | 16 | 13 | 11 | 24 | 14 | -9 |
| 2015-16 | AHL | Chicago Wolves | 65 | 10 | 18 | 28 | 15 | -14 | -- | -- | -- | -- | -- | -- |
| 2016-17 | AHL | Chicago Wolves | 46 | 19 | 18 | 37 | 14 | 0 | 2 | 0 | 0 | 0 | 0 | -1 |
| 2016-17 | NHL | St. Louis Blues | 30 | 5 | 7 | 12 | 2 | 5 | 6 | 0 | 0 | 0 | 2 | -1 |
| 2017-18 | AHL | Chicago Wolves | 20 | 5 | 5 | 10 | 6 | -1 | -- | -- | -- | -- | -- | -- |
| 2017-18 | NHL | St. Louis Blues | 53 | 7 | 6 | 13 | 4 | -1 | -- | -- | -- | -- | -- | -- |
| 2018-19 | NHL | St. Louis Blues | 80 | 14 | 12 | 26 | 17 | -4 | 25 | 3 | 3 | 6 | 4 | 0 |
| 2019-20 | NHL | St. Louis Blues | 69 | 11 | 15 | 26 | 23 | 4 | 3 | 0 | 0 | 0 | 2 | 0 |
| 2020-21 | NHL | St. Louis Blues | 38 | 5 | 7 | 12 | 6 | 5 | 4 | 0 | 1 | 1 | 4 | -2 |
| 2021-22 | NHL | St. Louis Blues | 81 | 26 | 34 | 60 | 40 | 4 | 12 | 0 | 2 | 2 | 4 | -6 |
| 2022-23 | NHL | St. Louis Blues | 59 | 10 | 19 | 29 | 36 | -10 | -- | -- | -- | -- | -- | -- |
| 2022-23 | NHL | Vegas Golden Knights | 23 | 6 | 10 | 16 | 6 | 11 | 22 | 7 | 11 | 18 | 18 | 14 |
| 2023-24 | NHL | Vegas Golden Knights | 82 | 19 | 26 | 45 | 42 | 15 | 7 | 0 | 4 | 4 | 0 | 3 |
| 2024-25 | NHL | Vegas Golden Knights | 70 | 23 | 28 | 51 | 10 | 26 | 11 | 1 | 1 | 2 | 6 | -9 |
| 2025-26 | NHL | Vegas Golden Knights | 67 | 19 | 28 | 47 | 12 | 12 | -- | -- | -- | -- | -- | -- |
| NHL TOTALS | 652 | 145 | 192 | 337 | 198 | 67 | 90 | 11 | 22 | 33 | 40 | -1 | ||
| Season | League | Award |
|---|---|---|
| 2018-19 | NHL | Stanley Cup |
| 2022-23 | NHL | Stanley Cup |