| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2023/2024 | Barletta | Serie D | 0 | 0 | 0 | 0 | 0 | – |
| 2022/2023 | Recanatese | Serie C | 25 | 0 | 0 | 1 | 0 | – |
| 2021/2022 | Pro Sesto | Serie C | 16 | 0 | 0 | 3 | 0 | – |
| 2021/2022 | Pescara | Serie C | 9 | 0 | 0 | 0 | 0 | – |
| 2020/2021 | Carrarese | Serie C | 20 | 5 | 0 | 3 | 0 | – |
| 2020/2021 | Monopoli | Serie C | 14 | 0 | 0 | 1 | 0 | – |
| 2020/2021 | Ternana | Serie C | 1 | 0 | 0 | 0 | 0 | – |
| 2019/2020 | Ternana | Serie C | 29 | 3 | 0 | 2 | 0 | – |
| 2018/2019 | Ternana | Serie C | 38 | 10 | 0 | 2 | 0 | – |
| 2017/2018 | Spezia | Serie B | 39 | 10 | 0 | 3 | 0 | – |
| 2016/2017 | Empoli | Serie A | 20 | 0 | 4 | 2 | 0 | 6.7 |
| 2015/2016 | Virtus Lanciano | Serie B | 34 | 7 | 0 | 2 | 0 | – |
| 2014/2015 | Cesena | Serie A | 8 | 1 | 0 | 0 | 0 | – |
| 2013/2014 | Cesena | Serie B | 24 | 5 | 0 | 3 | 0 | – |
| 2013/2014 | Atalanta | Serie A | 6 | 0 | 0 | 0 | 0 | – |
| 2012/2013 | Atalanta | Serie A | 2 | 0 | 0 | 0 | 0 | – |
| 2011/2012 | Atalanta | Serie A | 18 | 4 | 0 | 4 | 0 | – |
| 2010/2011 | Atalanta | Serie B | 16 | 2 | 0 | 2 | 0 | – |
| 2010/2011 | Sampdoria | Serie A | 15 | 0 | 0 | 3 | 0 | – |
| 2009/2010 | Lecce | Serie B | 35 | 13 | 0 | 3 | 0 | – |
| 2009/2010 | Sampdoria | Serie A | 0 | 0 | 0 | 0 | 0 | – |
| 2008/2009 | Sampdoria | Serie A | 7 | 3 | 0 | 1 | 0 | – |
| Total | 376 | 63 | 4 | 35 | 0 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| - | Ternana | Barletta | Free | |
| - | Ternana | Recanatese | Loan | |
| - | Ternana | Pro Sesto | Loan | |
| 08 Apr 2021 | Ternana | Pescara | Loan | |
| 07 Jan 2021 | Carrarese | Ternana | N/A | |
| - | Ternana | Carrarese | Loan | |
| 10 Mar 2020 | Ternana | Monopoli | Loan | |
| - | Atalanta | Ternana | Free | |
| - | Atalanta | Spezia | Loan | |
| 07 Jan 2017 | Empoli | Atalanta | N/A | |
| - | Atalanta | Cesena | Loan | |
| 01 Dec 2011 | Sampdoria | Atalanta | € 5M | |
| - | Sampdoria | Lecce | Loan |
G. Marilungo career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.