| 2011-12 | OHL | Peterborough Petes | 63 | 16 | 23 | 39 | 60 | -22 | -- | -- | -- | -- | -- | -- |
| 2012-13 | OHL | Peterborough Petes | 41 | 18 | 17 | 35 | 50 | -10 | -- | -- | -- | -- | -- | -- |
| 2013-14 | OHL | Peterborough Petes | 61 | 39 | 35 | 74 | 136 | -22 | 11 | 5 | 5 | 10 | 24 | -5 |
| 2014-15 | OHL | Peterborough Petes | 25 | 14 | 18 | 32 | 69 | -10 | -- | -- | -- | -- | -- | -- |
| 2014-15 | OHL | Sault Ste. Marie Greyhounds | 23 | 15 | 15 | 30 | 44 | 11 | 14 | 13 | 13 | 26 | 28 | 7 |
| 2015-16 | AHL | San Diego Gulls | 38 | 16 | 14 | 30 | 59 | -3 | 9 | 5 | 3 | 8 | 20 | 4 |
| 2015-16 | NHL | Anaheim Ducks | 33 | 2 | 2 | 4 | 37 | -2 | -- | -- | -- | -- | -- | -- |
| 2016-17 | NHL | Anaheim Ducks | 77 | 14 | 14 | 28 | 62 | 4 | 15 | 4 | 0 | 4 | 46 | -1 |
| 2017-18 | NHL | Anaheim Ducks | 76 | 10 | 17 | 27 | 72 | 3 | 4 | 0 | 0 | 0 | 8 | -2 |
| 2018-19 | NHL | Anaheim Ducks | 60 | 9 | 22 | 31 | 82 | 6 | -- | -- | -- | -- | -- | -- |
| 2019-20 | NHL | Anaheim Ducks | 41 | 8 | 11 | 19 | 78 | 3 | -- | -- | -- | -- | -- | -- |
| 2019-20 | NHL | Boston Bruins | 7 | 1 | 1 | 2 | 19 | -2 | 8 | 1 | 0 | 1 | 16 | -3 |
| 2020-21 | NHL | Boston Bruins | 56 | 15 | 11 | 26 | 37 | -7 | 11 | 1 | 3 | 4 | 10 | 0 |
| 2021-22 | AHL | Toronto Marlies | 2 | 1 | 0 | 1 | 0 | -1 | -- | -- | -- | -- | -- | -- |
| 2021-22 | NHL | Toronto Maple Leafs | 33 | 2 | 7 | 9 | 23 | -6 | -- | -- | -- | -- | -- | -- |
| 2021-22 | NHL | Arizona Coyotes | 24 | 10 | 4 | 14 | 20 | -7 | -- | -- | -- | -- | -- | -- |
| 2022-23 | NHL | Arizona Coyotes | 58 | 9 | 12 | 21 | 43 | -15 | -- | -- | -- | -- | -- | -- |
| 2022-23 | NHL | Calgary Flames | 16 | 4 | 1 | 5 | 10 | -6 | -- | -- | -- | -- | -- | -- |
| 2023-24 | SM-Liiga | Oulun Kärpät | 10 | 1 | 4 | 5 | 70 | -7 | -- | -- | -- | -- | -- | -- |
| 2023-24 | DEL | Iserlohn Roosters | 8 | 1 | 1 | 2 | 8 | -4 | -- | -- | -- | -- | -- | -- |
| NHL TOTALS | 481 | 84 | 102 | 186 | 483 | -29 | 38 | 6 | 3 | 9 | 80 | -6 |