| 2025 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $37,500 | $0 | View return |
| 2024 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2024 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2024 | Palos Verdes-South Bay Audubon Society | 990EZ | Director | 1 | $0 | - | View return |
| 2023 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2023 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2023 | Piano Spheres | 990EZ | President | 5 | $0 | - | View return |
| 2023 | Palos Verdes-South Bay Audubon Society | 990EZ | Director | 1 | $0 | - | View return |
| 2022 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2022 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2022 | Piano Spheres | 990 | President | 5 | $0 | $0 | View return |
| 2021 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2021 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2021 | Piano Spheres | 990EZ | President | 5 | $0 | $0 | View return |
| 2020 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2020 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2020 | Piano Spheres | 990EZ | President | 5 | $0 | - | View return |
| 2019 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2019 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2019 | Palos Verdes-South Bay Audubon Society | 990EZ | Treasurer | 5 | $0 | - | View return |
| 2018 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2018 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2018 | Palos Verdes-South Bay Audubon Society | 990EZ | Treasurer | 5 | $0 | - | View return |
| 2017 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2017 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2017 | Palos Verdes-South Bay Audubon Society | 990EZ | Treasurer | 5 | $0 | - | View return |
| 2016 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2016 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2015 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2015 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $32,500 | View return |
| 2014 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2014 | Endangered Habitats Conservancy | 990 | Treasurer | 0 | $0 | $32,500 | View return |
| 2013 | Endangered Habitats League Inc. | 990 | Treasurer | 15 | $32,500 | $0 | View return |
| 2013 | Endangered Habitats Conservancy | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2013 | South Bay Chamber Music Society Inc. | 990EZ | President | 4 | $0 | - | View return |
| 2013 | Palos Verdes-South Bay Audubon Society | 990EZ | Treasurer | 2 | $0 | - | View return |