| 2024 | Samuel Freeman Charitable Foundation | 990PF | Co-Trustee | 4 | $10,600 | - | View return |
| 2024 | Fund for a Better Future Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Shared Ascent Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Storm King Art Center | 990 | Vice-Chair | 2 | $0 | $0 | View return |
| 2024 | Geraldine R Dodge Foundation Incorporated | 990PF | Chair Emeritus | 2 | $0 | $0 | View return |
| 2023 | Open Space Institute Inc. | 990 | President And CEO | 2 | $575,272 | $0 | View return |
| 2023 | Samuel Freeman Charitable Foundation | 990PF | Co-Trustee | 4 | $8,802 | - | View return |
| 2023 | Open Space Institute Land Trust Inc. | 990 | President And CEO | 38 | $0 | $575,272 | View return |
| 2023 | Geraldine R Dodge Foundation Incorporated | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2023 | Shared Ascent Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Fund for a Better Future Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Black Rock Forest Preserve Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2023 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2023 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Black Rock Forest Consortium Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Open Space Institute Inc. | 990 | President And CEO | 2 | $958,454 | $0 | View return |
| 2022 | Samuel Freeman Charitable Foundation | 990PF | Co-Trustee | 4 | $7,510 | - | View return |
| 2022 | Open Space Institute Land Trust Inc. | 990 | President And CEO | 38 | $0 | $958,454 | View return |
| 2022 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | Fund for a Better Future Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Shared Ascent Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Geraldine R Dodge Foundation Incorporated | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2022 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | Black Rock Forest Preserve Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2022 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2021 | Open Space Institute Inc. | 990 | President & CEO | 2 | $475,257 | $0 | View return |
| 2021 | Samuel Freeman Charitable Foundation | 990PF | Co-Trustee | 4 | $8,231 | - | View return |
| 2021 | Open Space Institute Land Trust Inc. | 990 | President & CEO | 38 | $0 | $475,257 | View return |
| 2021 | Geraldine R Dodge Foundation Incorporated | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2021 | Shared Ascent Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | Fund for a Better Future Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Beaverkill Valley Land Trust Inc | 990 | Outsourced CEO | 0.5 | $0 | $0 | View return |
| 2021 | Geraldine R Dodge Foundation Incorporated | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2021 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2021 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | Open Space Institute Inc. | 990 | President & CEO | 2 | $465,503 | $0 | View return |
| 2020 | Samuel Freeman Charitable Foundation | 990PF | Co-Trustee | 4 | $8,618 | - | View return |
| 2020 | Open Space Institute Land Trust Inc. | 990 | President & CEO | 38 | $0 | $465,503 | View return |
| 2020 | Beaverkill Valley Land Trust Inc | 990 | Outsourced CEO | 0.5 | $0 | $0 | View return |
| 2020 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | Shared Ascent Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Fund for a Better Future Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Geraldine R Dodge Foundation Incorporated | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2020 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2020 | Black Rock Forest Preserve Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2020 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | Council on the Environment Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Council on the Environment Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Open Space Institute Inc. | 990 | President & CEO | 38 | $490,328 | $0 | View return |
| 2019 | Samuel Freeman Charitable Foundation | 990PF | Co-Trustee | 4 | $10,846 | - | View return |
| 2019 | Open Space Institute Land Trust Inc. | 990 | President & CEO | 2 | $0 | $490,328 | View return |
| 2019 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Geraldine R Dodge Foundation Incorporated | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2019 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2019 | Black Rock Forest Preserve Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2019 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Council on the Environment Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Open Space Institute Inc. | 990 | President & CEO | 38 | $466,322 | $0 | View return |
| 2018 | Open Space Institute Land Trust Inc. | 990 | President & CEO | 38 | $0 | $466,322 | View return |
| 2018 | Beaverkill Valley Land Trust Inc | 990 | President & CEO (Outgoing) | 1 | $0 | $466,322 | View return |
| 2018 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | Black Rock Forest Preserve Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2018 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2018 | Council on the Environment Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Open Space Institute Inc. | 990 | President & CEO | 1 | $461,131 | $0 | View return |
| 2017 | Beaverkill Valley Land Trust Inc | 990 | President & CEO | 1 | $0 | $461,131 | View return |
| 2017 | Open Space Institute Land Trust Inc. | 990 | President & CEO | 38 | $0 | $461,131 | View return |
| 2017 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2017 | Council on the Environment Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2017 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Black Rock Forest Preserve Inc. | 990 | Vice President | 1 | $0 | $0 | View return |
| 2017 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Open Space Institute Land Trust Inc. | 990 | President & CEO | 34.52 | $444,538 | $6,212 | View return |
| 2016 | Beaverkill Valley Land Trust Inc | 990 | President & CEO | 0.1 | $5,177 | $445,573 | View return |
| 2016 | Open Space Institute Inc. | 990 | President & CEO | 0.2 | $1,035 | $449,715 | View return |
| 2016 | Butler Conservation Fund Inc. | 990PF | Vice Chair | 1 | $0 | $0 | View return |
| 2016 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2016 | Fund for a Better Future Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2016 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Council on the Environment Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Black River Environmental Improvement Association Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Fund for a Better Future Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2016 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2015 | Open Space Institute Land Trust Inc. | 990 | President & CEO | 34.7 | $437,621 | $0 | View return |
| 2015 | Beaverkill Valley Land Trust Inc | 990 | President & CEO | 0.1 | $0 | $437,621 | View return |
| 2015 | Open Space Institute Inc. | 990 | President & CEO | 0.2 | $0 | $437,621 | View return |
| 2015 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2015 | Butler Conservation Fund Inc. | 990PF | Vice President/Director | 0.5 | $0 | $0 | View return |
| 2015 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2015 | Council on the Environment Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Wilderness Society | 990 | Gov Council Member | 2 | $0 | $0 | View return |
| 2015 | Black River Environmental Improvement Association Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Open Space Institute Land Trust Inc. | 990 | President & CEO | 34.7 | $420,712 | $516 | View return |
| 2014 | Open Space Institute Inc. | 990 | President & CEO | 0.2 | $516 | $420,712 | View return |
| 2014 | Beaverkill Valley Land Trust Inc | 990 | President & CEO | 0.1 | $0 | $421,227 | View return |
| 2014 | Geraldine R Dodge Foundation Incorporated | 990PF | Chairman | 4 | $0 | - | View return |
| 2014 | Butler Conservation Fund Inc. | 990PF | Vice President/Director | 0.5 | $0 | $0 | View return |
| 2014 | The Wilderness Society | 990 | Gov Council Member | 2 | $0 | $0 | View return |
| 2014 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2014 | Council on the Environment Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Black River Environmental Improvement Association Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Open Space Institute Inc. | 990 | President & CEO | 0.2 | $8,815 | $390,955 | View return |
| 2013 | Beaverkill Valley Land Trust Inc | 990 | President & CEO | 0.1 | $287 | $399,483 | View return |
| 2013 | Butler Conservation Fund Inc. | 990PF | Vice President/Director | 0.5 | $0 | $0 | View return |
| 2013 | Geraldine R Dodge Foundation Incorporated | 990PF | Chairman | 4 | $0 | - | View return |
| 2013 | Storm King Art Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2013 | Wildlife Conservation Society Amended 990 | 990 | Trustee | 1 | - | - | View return |
| 2013 | Black River Environmental Improvement Association Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Wilderness Society | 990 | Gov Council Member | 2 | $0 | $0 | View return |
| 2013 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2013 | Council on the Environment Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2012 | Geraldine R Dodge Foundation Incorporated | 990PF | Chairman | 4 | $0 | - | View return |
| 2012 | Butler Conservation Fund Inc. | 990PF | Vice President/Director | 0.5 | $0 | $0 | View return |
| 2012 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2011 | Butler Conservation Fund Inc. | 990PF | Vice President/Director | 0.5 | $0 | $0 | View return |
| 2011 | Overhills Foundation C/O Dab Management Company LLC | 990PF | Secretary/Treasurer & Director | 5 | $0 | $0 | View return |
| 2011 | Black River Outdoor Education Program Inc | 990PF | Director | 1 | $0 | - | View return |
| 2010 | Geraldine R Dodge Foundation Incorporated | 990PF | Chairman | 4 | $0 | - | View return |