

| Regular Season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | League | Team | GP | G | A | Pts | PIM | +/- | GP | G | A | Pts | PIM | +/- |
| 2015-16 | USHL | Sioux City Musketeers | 49 | 17 | 21 | 38 | 12 | -14 | -- | -- | -- | -- | -- | -- |
| 2016-17 | USHL | Sioux City Musketeers | 52 | 30 | 24 | 54 | 26 | 18 | 13 | 5 | 5 | 10 | 6 | 3 |
| 2017-18 | KHL | Jokerit | 49 | 19 | 17 | 36 | 28 | 14 | 11 | 6 | 1 | 7 | 8 | -1 |
| 2017-18 | NHL | Nashville Predators | 3 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | -- |
| 2018-19 | AHL | Milwaukee Admirals | 58 | 15 | 20 | 35 | 24 | -8 | 5 | 0 | 0 | 0 | 2 | -4 |
| 2018-19 | NHL | Nashville Predators | 4 | 1 | 1 | 2 | 0 | 2 | -- | -- | -- | -- | -- | -- |
| 2019-20 | AHL | Milwaukee Admirals | 63 | 21 | 15 | 36 | 18 | 2 | -- | -- | -- | -- | -- | -- |
| 2020-21 | KHL | Jokerit | 25 | 5 | 8 | 13 | 10 | 3 | -- | -- | -- | -- | -- | -- |
| 2020-21 | NHL | Nashville Predators | 40 | 11 | 11 | 22 | 4 | -10 | 4 | 0 | 0 | 0 | 0 | 0 |
| 2021-22 | NHL | Nashville Predators | 75 | 11 | 12 | 23 | 16 | -7 | 3 | 1 | 0 | 1 | 2 | -2 |
| 2022-23 | NHL | Nashville Predators | 13 | 2 | 2 | 4 | 4 | -2 | -- | -- | -- | -- | -- | -- |
| 2022-23 | NHL | Seattle Kraken | 48 | 16 | 11 | 27 | 10 | 10 | 14 | 3 | 5 | 8 | 6 | -4 |
| 2023-24 | NHL | Seattle Kraken | 81 | 16 | 25 | 41 | 24 | -15 | -- | -- | -- | -- | -- | -- |
| 2024-25 | NHL | Seattle Kraken | 81 | 23 | 12 | 35 | 23 | 3 | -- | -- | -- | -- | -- | -- |
| 2025-26 | NHL | Seattle Kraken | 64 | 12 | 21 | 33 | 24 | -14 | -- | -- | -- | -- | -- | -- |
| NHL TOTALS | 409 | 92 | 95 | 187 | 105 | -33 | 21 | 4 | 5 | 9 | 8 | -6 | ||
| Year | Tournament | Team | GP | G | A | Pts | PIM | +/- |
|---|---|---|---|---|---|---|---|---|
| 2017 | World Junior U-20 Championships | Team Finland | 6 | 2 | 4 | 6 | 2 | -1 |
| 2018 | World Junior U-20 Championships | Team Finland | 5 | 1 | 5 | 6 | 4 | 6 |
| 2018 | Olympics | Team Finland | 5 | 3 | 6 | 9 | 4 | 1 |
| 2018 | IIHF World Championship | Team Finland | 4 | 2 | 2 | 4 | 2 | 2 |
| 2019 | World Junior U-20 Championships | Team Finland | 7 | 0 | 4 | 4 | 2 | 3 |
| 2025 | IIHF World Championship | Team Finland | 8 | 7 | 2 | 9 | 2 | 6 |
| 2026 | Olympics | Team Finland | 5 | 1 | 2 | 3 | 0 | 2 |