| 2025 | South Bar Club Inc | 990 | President | 2 | $0 | $0 | View return |
| 2024 | South Bar Club Inc | 990 | President | 2 | $0 | $0 | View return |
| 2024 | Alzheimer'S Disease Research Foundation | 990 | Director (To 10/24) | 3 | $0 | $0 | View return |
| 2024 | Greenhill Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2024 | Sarah Bodman Greenhill Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2024 | American Enterprise Institute for Public | 990 | Bd Of Trustees - Until 11/24 | 1 | $0 | $0 | View return |
| 2023 | South Bar Club Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Alzheimer'S Disease Research Foundation | 990 | Director | 5 | $0 | $0 | View return |
| 2023 | Greenhill Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2023 | Sarah Bodman Greenhill Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2023 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2022 | Alzheimer'S Disease Research Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2022 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | South Bar Club Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2022 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2021 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | South Bar Club Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Alzheimer'S Disease Research Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2020 | Nantucket Golf Club Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | Nantucket Golf Club Foundation Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | South Bar Club Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Alzheimer'S Disease Research Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2019 | Nantucket Golf Club Foundation Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2019 | Nantucket Golf Club Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2019 | Alzheimer'S Disease Research Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2018 | Alzheimer'S Disease Research Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Nantucket Golf Club Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2018 | Nantucket Golf Club Foundation Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2018 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2017 | Greenhill Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2017 | Nantucket Golf Club Foundation Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2017 | Alzheimer'S Disease Research Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Nantucket Golf Club Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2017 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2017 | Alzheimer'S Disease Research Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Nantucket Golf Club Foundation Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2016 | Alzheimer'S Disease Research Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | Nantucket Golf Club Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2016 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2015 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | - | View return |
| 2015 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2015 | Nantucket Golf Club Foundation Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2015 | Alzheimer'S Disease Research Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Alzheimer'S Disease Research Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2014 | Nantucket Golf Club Foundation Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | - | View return |
| 2013 | World Economic Forum USA Inc | 990 | Board Member | 1 | $0 | $948,780 | View return |
| 2013 | Alzheimer'S Disease Research Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | - | View return |
| 2013 | Nantucket Golf Club Foundation Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2013 | American Enterprise Institute for Public | 990 | Bd Of Trustees | 1 | $0 | $0 | View return |
| 2012 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2011 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2010 | Greenhill Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |