
| 2009-10 | OMBAHA | Pursuit of Excellence Bantm Prep | 51 | 57 | 58 | 115 | 0 | - | - | 0 |
| 2010-11 | CSSHL | Okanagan H.A. | 6 | 4 | 5 | 9 | - | - | - | 4 |
| 2010-11 | High-BC | Okanagan H.A. | 39 | 22 | 27 | 49 | - | - | - | 67 |
| 2010-11 | WHL | Edmonton | 6 | 0 | 1 | 1 | 2 | - | - | 0 |
| 2011-12 | WHL | Edmonton | 63 | 20 | 11 | 31 | 15 | - | - | 56 |
| 2012-13 | WHL | Edmonton | 72 | 38 | 23 | 61 | 25 | - | - | 47 |
| 2013-14 | WHL | Edmonton | 58 | 41 | 35 | 76 | 41 | - | - | 30 |
| 2014-15 | NHL | Ottawa Senators | 67 | 6 | 9 | 15 | 1 | 92 | 6.5% | 14 |
| 2015-16 | NHL | Ottawa Senators | 76 | 6 | 14 | 20 | -1 | 78 | 7.7% | 18 |
| 2016-17 | NHL | Ottawa Senators | 33 | 0 | 1 | 1 | -10 | 24 | 0.0% | 4 |
| 2016-17 | NHL | Calgary Flames | 4 | 1 | 2 | 3 | 2 | 2 | 50.0% | 0 |
| 2016-17 | AHL | Binghamton Senators | 13 | 3 | 1 | 4 | -1 | - | - | 8 |
| 2017-18 | NHL | Calgary Flames | 65 | 2 | 10 | 12 | -8 | 65 | 3.1% | 23 |
| 2018-19 | NHL | Calgary Flames | 1 | 0 | 0 | 0 | -1 | 0 | 0.0% | 0 |
| 2018-19 | AHL | Stockton Heat | 57 | 20 | 21 | 41 | -9 | - | - | 47 |
| 2019-20 | NHL | Buffalo Sabres | 38 | 5 | 5 | 10 | -3 | 33 | 15.2% | 9 |
| 2019-20 | AHL | Rochester Americans | 18 | 6 | 8 | 14 | 10 | - | - | 6 |
| 2020-21 | NHL | Buffalo Sabres | 33 | 5 | 4 | 9 | -4 | 35 | 14.3% | 0 |
| 2020-21 | NHL | Boston Bruins | 17 | 2 | 2 | 4 | -2 | 20 | 10.0% | 6 |
| 2021-22 | NHL | Boston Bruins | 70 | 8 | 8 | 16 | -2 | 95 | 8.4% | 16 |
| 2022-23 | NHL | Vancouver Canucks | 45 | 3 | 2 | 5 | -5 | 54 | 5.6% | 14 |
| 2022-23 | NHL | New Jersey Devils | 4 | 0 | 0 | 0 | -1 | 1 | 0.0% | 7 |
| 2023-24 | NHL | New Jersey Devils | 71 | 7 | 18 | 25 | 10 | 74 | 9.5% | 44 |
| 2024-25 | NHL | New Jersey Devils | 48 | 2 | 3 | 5 | -6 | 27 | 7.4% | 14 |
| 2025-26 | NHL | Edmonton Oilers | 22 | 3 | 0 | 3 | -2 | 10 | 30.0% | 2 |
| NHL Totals | – | 594 | 50 | 78 | 128 | -32 | 610 | 8.2% | 171 | |
| AHL Totals | – | 88 | 29 | 30 | 59 | 0 | - | - | 61 | |
| Juniors Totals | – | 199 | 99 | 70 | 169 | 83 | - | - | 133 | |
| 2010-11 | CSSHL | Okanagan H.A. | 1 | 0 | 0 | 0 | - | - | - | 0 |
| 2010-11 | WHL | Edmonton | 4 | 1 | 0 | 1 | -1 | - | - | 0 |
| 2011-12 | WHL | Edmonton | 20 | 8 | 11 | 19 | 9 | - | - | 4 |
| 2011-12 | M-Cup | Edmonton | 4 | 0 | 1 | 1 | 0 | 7 | 0.0% | 0 |
| 2012-13 | WHL | Edmonton | 22 | 9 | 2 | 11 | -2 | - | - | 20 |
| 2013-14 | WHL | Edmonton | 21 | 10 | 12 | 22 | 12 | - | - | 12 |
| 2013-14 | M-Cup | Edm. Oil Kings | 5 | 2 | 2 | 4 | 0 | - | - | 0 |
| 2014-15 | NHL | Ottawa Senators | 6 | 0 | 0 | 0 | 0 | 9 | 0.0% | 2 |
| 2016-17 | NHL | Calgary Flames | 1 | 0 | 0 | 0 | 0 | 0 | 0.0% | 0 |
| 2020-21 | NHL | Boston Bruins | 10 | 0 | 1 | 1 | -1 | 6 | 0.0% | 0 |
| 2021-22 | NHL | Boston Bruins | 7 | 1 | 0 | 1 | 1 | 9 | 11.1% | 2 |
| 2022-23 | NHL | New Jersey Devils | 6 | 1 | 0 | 1 | 0 | 4 | 25.0% | 2 |
| NHL Totals | – | 30 | 2 | 1 | 3 | 0 | 28 | 7.1% | 6 | |
| Juniors Totals | – | 67 | 28 | 25 | 53 | 18 | - | - | 36 | |
| Season | Opponent | Date | G | A | P | +/- | PIM | PPG | SHG | S | Shifts | TOI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Regular | @ WPG | Jan 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 6:51 |
| Regular | vs NSH | Jan 6 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 3 | 13 | 8:44 |
| Regular | @ WPG | Dec 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 8:20 |
| Regular | vs VGK | Dec 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 10:01 |
| Regular | @ PIT | Dec 16 | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 0 | 10 | 3:17 |