| 2024 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2024 | Bard College | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Parrhasian Heritage Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Bard College | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Parrhasian Heritage Foundation | 990EZ | Director | 0 | $0 | - | View return |
| 2022 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | The Nicholas B Ottaway Foundation Inc | 990PF | Board Member | 2 | $0 | - | View return |
| 2022 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Parrhasian Heritage Foundation | 990EZ | Director | 0 | $0 | - | View return |
| 2021 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Wallkill Valley Land Trust Inc. | 990 | Director Emerit | 2 | $0 | $0 | View return |
| 2021 | The Nicholas B Ottaway Foundation Inc | 990PF | Trustee | 2 | $0 | - | View return |
| 2020 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | Parrhasian Heritage Foundation | 990EZ | Director | 0 | $0 | - | View return |
| 2020 | The Nicholas B Ottaway Foundation Inc | 990PF | Trustee | 2 | $0 | - | View return |
| 2020 | Wallkill Valley Land Trust Inc. | 990 | Director Emeriti | 10 | $0 | $0 | View return |
| 2020 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Parrhasian Heritage Foundation | 990EZ | Director | 0 | $0 | - | View return |
| 2019 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | The Nicholas B Ottaway Foundation Inc | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2018 | Parrhasian Heritage Foundation | 990EZ | Director | 0 | $0 | - | View return |
| 2018 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Wallkill Valley Land Trust Inc. | 990 | Treasurer | 15 | $0 | $0 | View return |
| 2017 | Parrhasian Heritage Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2017 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Wallkill Valley Land Trust Inc. | 990 | Treasurer | 15 | $0 | $0 | View return |
| 2016 | Parrhasian Heritage Foundation | 990EZ | Director | 0 | $0 | - | View return |
| 2016 | Words Without Borders Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Wallkill Valley Land Trust Inc. | 990 | Treasurer | 10 | $0 | $0 | View return |
| 2016 | Bard College Berlin a Liberal Arts University Ggmbh | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2016 | Bard College | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2015 | Bard College | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2015 | Bard College Berlin a Liberal Arts University Ggmbh | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2015 | Wallkill Valley Land Trust Inc. | 990 | Treasurer | 5 | $0 | $0 | View return |
| 2014 | Cornelia and Michael Bessie Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2014 | Wallkill Valley Land Trust Inc. | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2014 | Bard College | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2014 | Bard College Berlin a Liberal Arts University Ggmbh | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2013 | Cornelia and Michael Bessie Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2013 | Storm King Art Center | 990 | Chairman | 2 | $0 | $0 | View return |
| 2013 | Bard College Berlin a Liberal Arts University Ggmbh | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2013 | Wallkill Valley Land Trust Inc. | 990 | Treasurer | - | $0 | $0 | View return |
| 2013 | Bard College | 990 | Life Trustee | 1 | $0 | $0 | View return |