| 2025 | The Greenwich Tree Conservancy Inc | 990 | Chairman | 2 | $0 | $0 | View return |
| 2024 | Malkin Fund Inc. | 990PF | Chairman | 1 | $0 | $0 | View return |
| 2024 | The Greenwich Tree Conservancy Inc | 990 | Chairman | 2 | $0 | $0 | View return |
| 2023 | Malkin Fund Inc. | 990PF | Chairman | 1 | $0 | $0 | View return |
| 2023 | The Greenwich Tree Conservancy Inc | 990 | Chairman | 2 | $0 | $0 | View return |
| 2023 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.2 | $0 | $0 | View return |
| 2023 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2023 | Greenwich Historical Society Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Chief Executives for Corporate Purpose Inc. | 990 | Director Emeritus/Treasurer | 1 | $0 | $0 | View return |
| 2023 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Greenwich Tree Conservancy Inc | 990 | Chairman | 2 | $0 | $0 | View return |
| 2022 | Entrepreneurship Education Consortium Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Malkin Fund Inc. | 990PF | Chairman | 1 | $0 | $0 | View return |
| 2022 | Chief Executives for Corporate Purpose Inc. | 990 | Director Emeritus/Treasure | 1 | $0 | $0 | View return |
| 2022 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.3 | $0 | $0 | View return |
| 2022 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2021 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2021 | The Greenwich Tree Conservancy Inc | 990 | Chairman | 2 | $0 | $0 | View return |
| 2021 | Malkin Fund Inc. | 990PF | Chairman | 1 | $0 | $0 | View return |
| 2021 | Chief Executives for Corporate Purpose Inc. | 990 | Director Emeritus/Treasurer | 1 | $0 | $0 | View return |
| 2021 | Grand Central Partnership Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.2 | $0 | $0 | View return |
| 2020 | Malkin Fund Inc. | 990PF | Chairman | 1 | $0 | $0 | View return |
| 2020 | The Greenwich Tree Conservancy Inc | 990 | Chairman | 2 | $0 | $0 | View return |
| 2020 | Grand Central Partnership Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.2 | $0 | $0 | View return |
| 2020 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | Chief Executives for Corporate Purpose Inc. | 990 | Director Emeritus/Treasurer | 1 | $0 | $0 | View return |
| 2020 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2020 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | The Greenwich Tree Conservancy Inc | 990 | Chairman | 2 | $0 | $0 | View return |
| 2019 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2019 | Malkin Fund Inc. | 990PF | Chairman | 1 | $0 | $0 | View return |
| 2019 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Chief Executives for Corporate Purpose Inc. | 990 | Director Emeritus/Treasurer | 1 | $0 | $0 | View return |
| 2019 | Grand Central Partnership Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2019 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2019 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.2 | $0 | $0 | View return |
| 2018 | Realty Foundation of New York | 990PF | Vice President | 3 | $0 | $0 | View return |
| 2018 | Malkin Fund Inc. | 990PF | Chairman | 1 | $0 | $0 | View return |
| 2018 | The Greenwich Tree Conservancy Inc | 990 | Chairman | 4 | $0 | $0 | View return |
| 2018 | Institute for the Study of Global Anti-Semitism and Policy Inc. | 990 | Advisor | - | $0 | $0 | View return |
| 2018 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.2 | $0 | $0 | View return |
| 2018 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2018 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2018 | Grand Central Partnership Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2017 | Realty Foundation of New York | 990PF | Vice President | 3 | $0 | $0 | View return |
| 2017 | The Greenwich Tree Conservancy Inc | 990 | President | 4 | $0 | $0 | View return |
| 2017 | Institute for the Study of Global Anti-Semitism and Policy Inc. | 990 | Advisor | - | $0 | $0 | View return |
| 2017 | Malkin Fund Inc. | 990PF | Chairman | 1 | $0 | $0 | View return |
| 2017 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2017 | Chief Executives for Corporate Purpose Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.25 | $0 | $0 | View return |
| 2017 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2017 | Grand Central Partnership Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2017 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2016 | Malkin Fund Inc. | 990PF | Chairman | 1 | $0 | $0 | View return |
| 2016 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2016 | The Greenwich Tree Conservancy Inc | 990EZ | President | 4 | $0 | $0 | View return |
| 2016 | Institute for the Study of Global Anti-Semitism and Policy Inc. | 990 | Advisor | 1 | $0 | $0 | View return |
| 2016 | Grand Central Partnership Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2016 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Chief Executives for Corporate Purpose Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2016 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.2 | $0 | $0 | View return |
| 2015 | The Greenwich Tree Conservancy Inc | 990EZ | President | 4 | $0 | $0 | View return |
| 2015 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2015 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Chief Executives for Corporate Purpose Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Grand Central Partnership Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.2 | $0 | $0 | View return |
| 2014 | The Greenwich Tree Conservancy Inc | 990EZ | President | 4 | $0 | $0 | View return |
| 2014 | Institute for the Study of Global Anti-Semitism and Policy Inc. | 990 | Executive Committee | 1 | $0 | $0 | View return |
| 2014 | Merritt Parkway Conservancy Inc. | 990EZ | Chairman | 1 | $0 | $0 | View return |
| 2014 | Fashion Center District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2014 | Grand Central Partnership Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2014 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.2 | $0 | $0 | View return |
| 2014 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2014 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Chief Executives for Corporate Purpose Inc. | 990 | Director, Treasurer | 1 | $0 | $0 | View return |
| 2013 | Merritt Parkway Conservancy Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2013 | Institute for the Study of Global Anti-Semitism and Policy Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | The Greenwich Tree Conservancy Inc | 990EZ | President | 4 | $0 | $0 | View return |
| 2013 | 34Th Street Partnership Inc. | 990 | Class A Director | 0.3 | $0 | $0 | View return |
| 2013 | Fashion Center District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2013 | Grand Central Partnership Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2013 | Lincoln Center Development Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Grand Central District Management Association Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2013 | Chief Executives for Corporate Purpose Inc. | 990 | Director, Treasurer | 1 | $0 | $0 | View return |