| 2025 | The Margot Marsh Biodiversity Foundation C/O First Republic Investment Management | 990PF | Secretary | 1 | $10,000 | $0 | View return |
| 2024 | The Margot Marsh Biodiversity Foundation C/O First Republic Investment Management | 990PF | Secretary | 1 | $10,000 | $0 | View return |
| 2024 | The International Rhino Foundation | 990 | Vice President, Africa Pro | 1.25 | $0 | $0 | View return |
| 2024 | Wildlife Conservation Global Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | The International Rhino Foundation | 990 | Vice President, Africa Pro | 1.25 | $0 | $0 | View return |
| 2023 | The Margot Marsh Biodiversity Foundation C/O First Republic Investment Management | 990PF | Secretary | 1 | $10,000 | $0 | View return |
| 2023 | The International Rhino Foundation | 990 | Vice President, Africa Pro | 1.25 | $0 | $0 | View return |
| 2022 | The Margot Marsh Biodiversity Foundation C/O First Republic Investment Management | 990PF | Secretary | 1 | $10,000 | $0 | View return |
| 2022 | The International Rhino Foundation | 990 | Vice President, Africa Programs | 0.75 | $0 | $0 | View return |
| 2022 | Wildlife Conservation Global Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The Margot Marsh Biodiversity Foundation C/O First Republic Investment Management | 990PF | Secretary | 1 | $10,000 | $0 | View return |
| 2021 | Wildlife Conservation Global Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The International Rhino Foundation | 990 | Director/VP Africa Program | 0.75 | $0 | $0 | View return |
| 2020 | The Margot Marsh Biodiversity Foundation C/O First Republic Investment Management | 990PF | Secretary | 1 | $10,000 | $0 | View return |
| 2020 | The International Rhino Foundation | 990 | Director/VP Africa Program | 0.75 | $0 | $0 | View return |
| 2020 | Wildlife Conservation Global Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | The Margot Marsh Biodiversity Foundation C/O First Republic Investment Management | 990PF | Secretary | 1 | $10,000 | $0 | View return |
| 2019 | The International Rhino Foundation | 990 | Director/VP Africa Program | 2 | $0 | $0 | View return |
| 2019 | Wildlife Conservation Global Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Gorilla Rehabilitation and Conservation Education (Grace) Center Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Wildlife Conservation Global Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | The International Rhino Foundation | 990 | Director/VP Africa Program | 2 | $0 | $0 | View return |
| 2018 | The Margot Marsh Biodiversity Foundation C/O First Republic Investment Management | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2018 | Gorilla Rehabilitation and Conservation Education (Grace) Center Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Wildlife Conservation Global Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | The International Rhino Foundation | 990 | Director/VP Africa Program | 2 | $0 | $0 | View return |
| 2017 | Gorilla Rehabilitation and Conservation Education (Grace) Center Inc | 990 | Governance & Nominating Co | 2 | $0 | $0 | View return |
| 2016 | The International Rhino Foundation | 990 | Director/VP Africa Programs | 2 | $0 | $0 | View return |
| 2016 | Gorilla Rehabilitation and Conservation Education (Grace) Center Inc | 990 | Governance & Nominating Co | 2 | $0 | $0 | View return |
| 2015 | The International Rhino Foundation | 990 | Director/VP African Progra | 2 | $0 | $0 | View return |
| 2015 | The National Elephant Center Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2015 | Gorilla Rehabilitation and Conservation Education (Grace) Center Inc | 990 | Governance & Nominating Co | 2 | $0 | $0 | View return |
| 2014 | The National Elephant Center Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2014 | The International Rhino Foundation | 990 | Director/VP African Progra | 2 | $0 | $0 | View return |
| 2014 | Gorilla Rehabilitation and Conservation Education (Grace) Center Inc | 990 | Governance & Nominating Committee Chair | 2 | $0 | $0 | View return |