| 2012-13 | USHL | Sioux City | 60 | 29 | 44 | 73 | 24 | 13 | -- | -- | -- | -- | -- | -- |
| 2015-16 | AHL | Wilkes-Barre/Scranton Penguins | 11 | 2 | 4 | 6 | 0 | -1 | 10 | 5 | 9 | 14 | 0 | 2 |
| 2015-16 | NCAA | Univ. of Nebraska-Omaha | 35 | 19 | 27 | 46 | 20 | 6 | -- | -- | -- | -- | -- | -- |
| 2016-17 | AHL | Wilkes-Barre/Scranton Penguins | 33 | 21 | 21 | 42 | 12 | 21 | -- | -- | -- | -- | -- | -- |
| 2016-17 | NHL | Pittsburgh Penguins | 40 | 16 | 17 | 33 | 10 | 7 | 25 | 13 | 8 | 21 | 10 | 1 |
| 2017-18 | NHL | Pittsburgh Penguins | 82 | 22 | 26 | 48 | 42 | -9 | 12 | 10 | 11 | 21 | 8 | 10 |
| 2018-19 | NHL | Pittsburgh Penguins | 82 | 40 | 36 | 76 | 26 | 13 | 4 | 1 | 0 | 1 | 0 | -3 |
| 2019-20 | NHL | Pittsburgh Penguins | 39 | 20 | 23 | 43 | 14 | 11 | 4 | 1 | 2 | 3 | 0 | 1 |
| 2020-21 | NHL | Pittsburgh Penguins | 56 | 23 | 34 | 57 | 28 | 7 | 6 | 1 | 1 | 2 | 6 | -6 |
| 2021-22 | NHL | Pittsburgh Penguins | 76 | 40 | 44 | 84 | 44 | 13 | 7 | 8 | 2 | 10 | 2 | 1 |
| 2022-23 | NHL | Pittsburgh Penguins | 78 | 36 | 37 | 73 | 46 | 2 | -- | -- | -- | -- | -- | -- |
| 2023-24 | NHL | Pittsburgh Penguins | 50 | 22 | 30 | 52 | 14 | 9 | -- | -- | -- | -- | -- | -- |
| 2023-24 | NHL | Carolina Hurricanes | 17 | 8 | 17 | 25 | 8 | 16 | 11 | 4 | 5 | 9 | 16 | 4 |
| 2024-25 | NHL | Tampa Bay Lightning | 80 | 41 | 39 | 80 | 24 | 18 | 5 | 3 | 3 | 6 | 6 | -3 |
| 2025-26 | NHL | Tampa Bay Lightning | 65 | 29 | 40 | 69 | 49 | 10 | -- | -- | -- | -- | -- | -- |
| NHL TOTALS | 665 | 297 | 343 | 640 | 305 | 97 | 74 | 41 | 32 | 73 | 48 | 5 |