| 2025 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2024 | The Holland Foundation | 990PF | Board Member | 1 | $10,000 | $0 | View return |
| 2024 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2024 | The Susan Thompson Buffett Foundation | 990PF | Director Thru 11/22/24 | 1 | $0 | $0 | View return |
| 2024 | Joslyn Art Museum | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2023 | The Holland Foundation | 990PF | Board Member | 1 | $10,000 | $0 | View return |
| 2023 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2023 | The Susan Thompson Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Joslyn Art Museum | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2023 | Weitz Family Foundation | 990PF | Board President & Treasurer | 1 | $0 | $0 | View return |
| 2022 | The Holland Foundation | 990PF | Board Member | 1 | $10,000 | $0 | View return |
| 2022 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2022 | Joslyn Art Museum | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2022 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2022 | The Susan Thompson Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Carleton College | 990 | Trustee Chair | 8 | $0 | $0 | View return |
| 2022 | Weitz Family Foundation | 990PF | President & Treasurer | 1 | $0 | $0 | View return |
| 2021 | The Holland Foundation | 990PF | Director | 1 | $10,000 | $0 | View return |
| 2021 | Carleton College | 990 | Trustee Chair | 8 | $0 | $0 | View return |
| 2021 | The Susan Thompson Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2021 | Joslyn Art Museum | 990 | Vice Chairman/Secretary | 1 | $0 | $0 | View return |
| 2021 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2021 | Weitz Family Foundation | 990PF | President & Treasurer | 1 | $0 | $0 | View return |
| 2020 | The Holland Foundation | 990PF | Director | 1 | $10,000 | $0 | View return |
| 2020 | Joslyn Art Museum | 990 | Vice Chairman/Secretary | 1 | $0 | $0 | View return |
| 2020 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2020 | Weitz Family Foundation | 990PF | President & Treasurer | 1 | $0 | $0 | View return |
| 2020 | Carleton College | 990 | Chair | 8 | $0 | $0 | View return |
| 2020 | The Susan Thompson Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2019 | The Holland Foundation | 990PF | Director | 1 | $10,000 | $0 | View return |
| 2019 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2019 | The Susan Thompson Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2019 | Joslyn Art Museum | 990 | Secretary | 1 | $0 | $0 | View return |
| 2019 | Carleton College | 990 | Chair | 8 | $0 | $0 | View return |
| 2019 | Weitz Family Foundation | 990PF | President & Treasurer | 1 | $0 | $0 | View return |
| 2018 | The Holland Foundation | 990PF | Director | 1 | $10,000 | $0 | View return |
| 2018 | Carleton College | 990 | Chair | 8 | $0 | $0 | View return |
| 2018 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2018 | Weitz Family Foundation | 990PF | President & Treasurer | 1 | $0 | $0 | View return |
| 2018 | Joslyn Art Museum | 990 | Secretary | 1 | $0 | $0 | View return |
| 2018 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2018 | The Susan Thompson Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2017 | The Holland Foundation | 990PF | Director | 1 | $10,000 | $0 | View return |
| 2017 | The Susan Thompson Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | Carleton College | 990 | Chair | 8 | $0 | $0 | View return |
| 2017 | Bridge Family Resource Connector Network | 990 | Treasurer & Director | 1 | $0 | $0 | View return |
| 2017 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2017 | Joslyn Art Museum | 990 | Secretary | 1 | $0 | $0 | View return |
| 2017 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2016 | The Holland Foundation | 990PF | Director | 1 | $3,000 | $0 | View return |
| 2016 | The Susan Thompson Buffett Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2016 | Joslyn Art Museum | 990 | Secretary | 1 | $0 | $0 | View return |
| 2016 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2016 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2016 | Weitz Family Foundation | 990PF | President & Treasurer | 1 | $0 | $0 | View return |
| 2016 | Bridge Family Resource Connector Network | 990 | Treasurer & Director | 1 | $0 | $0 | View return |
| 2015 | The Holland Foundation | 990PF | Director | 1 | $3,000 | $0 | View return |
| 2015 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2015 | Bridge Family Resource Connector Network | 990 | Treasurer & Director | 1 | $0 | $0 | View return |
| 2015 | Weitz Family Foundation | 990PF | President & Treasurer | 1 | $0 | $0 | View return |
| 2015 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2015 | Joslyn Art Museum | 990 | Secretary | 1 | $0 | $0 | View return |
| 2014 | The Holland Foundation | 990PF | Director | 1 | $3,000 | $0 | View return |
| 2014 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2014 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2014 | Carleton College | 990 | Trustee | 5 | $0 | $0 | View return |
| 2014 | Weitz Family Foundation | 990PF | President & Treasurer | 1 | $0 | $0 | View return |
| 2014 | Bridge Family Resource Connector Network | 990 | Treasurer & Director | 1 | $0 | $0 | View return |
| 2013 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2013 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2012 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2012 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2011 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2011 | Buffett Early Childhood Fund | 990PF | Director & Secretary | 5 | $0 | $0 | View return |
| 2010 | The Sherwood Foundation | 990PF | Member | 2 | $0 | $0 | View return |
| 2010 | Buffett Early Childhood Fund | 990PF | Secretary | 5 | $0 | $0 | View return |