| 2024 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $300,000 | $0 | View return |
| 2024 | Ewg Action Fund | 990 | Chair & President | 1 | $0 | $0 | View return |
| 2024 | Climate Law and Policy Initiative Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Center for Climate Integrity | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | The Maasai Girls Education Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $275,000 | $0 | View return |
| 2023 | Ewg Action Fund | 990 | Chair & President | 1 | $0 | $0 | View return |
| 2023 | Environmental Defender Law Center | 990 | Vice President | 0.5 | $0 | $0 | View return |
| 2023 | Center for Climate Integrity | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Maasai Girls Education Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $250,000 | $0 | View return |
| 2022 | Center for Climate Integrity | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Environmental Defender Law Center | 990 | Vice President | 0.5 | $0 | $0 | View return |
| 2022 | Ewg Action Fund | 990 | Chair & President | 1 | $0 | $0 | View return |
| 2022 | The Maasai Girls Education Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $250,000 | $0 | View return |
| 2021 | The Maasai Girls Education Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Center for Climate Integrity | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Environmental Defender Law Center | 990 | Vice President | 0.5 | $0 | $0 | View return |
| 2021 | Ewg Action Fund | 990 | Chair & President | 1 | $0 | $0 | View return |
| 2020 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $250,000 | $0 | View return |
| 2020 | Environmental Defender Law Center | 990 | Vice President | 0.5 | $0 | $0 | View return |
| 2020 | Ewg Action Fund | 990 | Chair | 1 | $0 | $0 | View return |
| 2019 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $250,000 | $0 | View return |
| 2019 | Environmental Defender Law Center | 990 | President | 0.5 | $0 | $0 | View return |
| 2019 | Ewg Action Fund | 990 | Chair | 1 | $0 | $0 | View return |
| 2019 | The Maasai Girls Education Fund | 990 | Member | 1 | $0 | $0 | View return |
| 2018 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $250,000 | $0 | View return |
| 2018 | Environmental Defender Law Center | 990 | President | 0.5 | $0 | $0 | View return |
| 2018 | Ewg Action Fund | 990 | Chair | 1 | $0 | $0 | View return |
| 2018 | The Maasai Girls Education Fund | 990 | Member | 1 | $0 | $0 | View return |
| 2017 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $250,000 | $0 | View return |
| 2017 | Ewg Action Fund | 990 | Chair | 1 | $0 | $0 | View return |
| 2017 | Environmental Defender Law Center | 990 | President | 0.5 | $0 | $0 | View return |
| 2017 | The Maasai Girls Education Fund | 990 | Member | 1 | $0 | $0 | View return |
| 2016 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $231,880 | $0 | View return |
| 2016 | Ewg Action Fund | 990 | Chair | 1 | $0 | $0 | View return |
| 2016 | Environmental Defender Law Center | 990 | President | 0.5 | $0 | $0 | View return |
| 2016 | The Maasai Girls Education Fund | 990 | Member | 1 | $0 | $0 | View return |
| 2015 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $222,820 | $0 | View return |
| 2015 | Environmental Defender Law Center | 990 | President | 0.5 | $0 | $0 | View return |
| 2015 | Ewg Action Fund | 990 | Chair (As Of 06/2015) | 1 | $0 | $0 | View return |
| 2015 | The Maasai Girls Education Fund | 990 | Member | 1 | $0 | $0 | View return |
| 2014 | Institute for Governance and Sustainable Development Inc. | 990 | President | 40 | $222,820 | $0 | View return |
| 2014 | Environmental Defender Law Center | 990 | President | 0.5 | $0 | $0 | View return |
| 2014 | The Maasai Girls Education Fund | 990 | Member | 1 | $0 | $0 | View return |
| 2013 | Environmental Defender Law Center | 990 | President | 0.5 | $0 | $0 | View return |
| 2013 | The Maasai Girls Education Fund | 990 | Member | 1 | $0 | $0 | View return |