| 2024 | Rebecca Susan Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Rock and Roll Forever Foundation Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Rebecca Susan Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Avenue Scholars Foundation | 990 | Chairman | 0 | $0 | $0 | View return |
| 2023 | Metropolitan Entertainment & Convention Authority | 990 | Secretary | 5 | $0 | $0 | View return |
| 2022 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2022 | Rebecca Susan Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Rock and Roll Forever Foundation Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2022 | Metropolitan Entertainment & Convention Authority | 990 | Secretary | 5 | $0 | $0 | View return |
| 2022 | Avenue Scholars Foundation | 990 | Chairman | 0 | $0 | $0 | View return |
| 2021 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2021 | Rebecca Susan Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Rock and Roll Forever Foundation Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | Metropolitan Entertainment & Convention Authority | 990 | Secretary | 5 | $0 | $0 | View return |
| 2021 | Avenue Scholars Foundation | 990 | Chair | 0 | $0 | $0 | View return |
| 2020 | Rebecca Susan Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | The Tri-Faith Initiative of Omaha Nebraska | 990 | Director | - | $0 | $0 | View return |
| 2020 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2020 | Avenue Scholars Foundation | 990 | Chair | 0 | $0 | $0 | View return |
| 2020 | Metropolitan Entertainment & Convention Authority | 990 | Secretary | 5 | $0 | $0 | View return |
| 2019 | Rock and Roll Forever Foundation Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | Rebecca Susan Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | The Tri-Faith Initiative of Omaha Nebraska | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2019 | Metropolitan Entertainment & Convention Authority | 990 | Secretary | 5 | $0 | $0 | View return |
| 2019 | Avenue Scholars Foundation | 990 | Chair | 0 | $0 | $0 | View return |
| 2018 | The Tri-Faith Initiative of Omaha Nebraska | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Rock and Roll Forever Foundation Inc | 990 | Broad Member | 1 | $0 | $0 | View return |
| 2018 | Rebecca Susan Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2018 | Metropolitan Entertainment & Convention Authority | 990 | Secretary | 5 | $0 | $0 | View return |
| 2018 | Avenue Scholars Foundation | 990 | Vice Chair | 0 | $0 | $0 | View return |
| 2017 | Bridge Family Resource Connector Network | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2017 | Rebecca Susan Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | Rock and Roll Forever Foundation Inc | 990 | Broad Member | 1 | $0 | $0 | View return |
| 2017 | The Tri-Faith Initiative of Omaha Nebraska | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2017 | Metropolitan Entertainment & Convention Authority | 990 | Secretary | 5 | $0 | $0 | View return |
| 2017 | Avenue Scholars Foundation | 990 | Vice Chair | 0 | $0 | $0 | View return |
| 2016 | The Tri-Faith Initiative of Omaha Nebraska | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2016 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2016 | Bridge Family Resource Connector Network | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Avenue Scholars Foundation | 990 | Vice Chair | 0 | $0 | $0 | View return |
| 2016 | Metropolitan Entertainment & Convention Authority | 990 | Secretary | 5 | $0 | $0 | View return |
| 2015 | Bridge Family Resource Connector Network | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | The Tri-Faith Initiative of Omaha Nebraska | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2015 | Avenue Scholars Foundation | 990 | Vice Chair | 0 | $0 | $0 | View return |
| 2015 | Metropolitan Entertainment & Convention Authority | 990 | Board Member | 5 | $0 | $0 | View return |
| 2014 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2014 | Girls Incorporated | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | The Tri-Faith Initiative of Omaha Nebraska | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Bridge Family Resource Connector Network | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Avenue Scholars Foundation | 990 | Vice Chair | 0 | $0 | $0 | View return |
| 2013 | The Tri-Faith Initiative of Omaha Nebraska | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Girls Incorporated | 990 | Secretary | 1 | $0 | $0 | View return |
| 2013 | Northstar Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2013 | Avenue Scholars Foundation | 990 | Vice Chair | 0 | $0 | $0 | View return |