| 2025 | Philip Hofer Charitable Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2025 | Garland Memorial Fund | 990 | Trustee | 1 | $0 | $0 | View return |
| 2025 | Calderwood Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2025 | William Hadwen Ames Memorial Fund | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Calderwood Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Philip Hofer Charitable Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2024 | Norma Kellar Brenneman Charitable Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Pattony Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Cromwell Harbor Supporting Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Garland Memorial Fund | 990 | Trustee | 1 | $0 | $0 | View return |
| 2024 | Cecile Higginson Murphy Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Edith H Overly Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee (To 02/2025) | 1 | $0 | $0 | View return |
| 2023 | Calderwood Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Cromwell Harbor Supporting Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Norma Kellar Brenneman Charitable Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Garland Memorial Fund | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Philip Hofer Charitable Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Edith H Overly Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Cecile Higginson Murphy Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Pattony Foundation | 990PF | Trustee (Start Feb 2024) | 1 | $0 | $0 | View return |
| 2023 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Philip Hofer Charitable Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Edith H Overly Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Cromwell Harbor Supporting Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Garland Memorial Fund | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Lucretia Prentiss Bailey Trust of Mass | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2022 | Calderwood Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Cecile Higginson Murphy Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Norma Kellar Brenneman Charitable Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Trust U/W Amy Lowell 10Th Clause Conrad W Oberdorfer Tr | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Norma Kellar Brenneman Charitable Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Cecile Higginson Murphy Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Edith H Overly Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Calderwood Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Lucretia Prentiss Bailey Trust of Mass | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2021 | Targetcancer Foundation Inc. | 990 | Treasurer/Director (End June 2021) | 1 | $0 | $0 | View return |
| 2021 | Milton Academy | 990 | Trustee (Until July 2021) | 1 | $0 | $0 | View return |
| 2021 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Calderwood Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Edith H Overly Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Cecile Higginson Murphy Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Targetcancer Foundation Inc. | 990 | Treasurer/Director | 1 | $0 | $0 | View return |
| 2020 | Lucretia Prentiss Bailey Trust of Mass | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2020 | Norma Kellar Brenneman Charitable Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Milton Academy | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Norma Kellar Brenneman Charitable Trust | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Lucretia Prentiss Bailey Trust of Mass | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2019 | Targetcancer Foundation Inc. | 990 | Treasurer/Director | 1 | $0 | $0 | View return |
| 2019 | Cecile Higginson Murphy Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Milton Academy | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Lucretia Prentiss Bailey Trust of Mass | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2018 | Joshua Rabb Goldberg Charitable Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2018 | Targetcancer Foundation Inc. | 990 | Treasurer/Director | 1 | $0 | $0 | View return |
| 2018 | Deborah B Goldberg Charitable Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2018 | Milton Academy | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Deborah B Goldberg Charitable Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2017 | Targetcancer Foundation Inc. | 990 | Treasurer/Director | 1 | $0 | $0 | View return |
| 2017 | Joshua Rabb Goldberg Charitable Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2017 | Lucretia Prentiss Bailey Trust of Mass | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2017 | Milton Academy | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | Joshua Rabb Goldberg Charitable Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2016 | Deborah B Goldberg Charitable Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2016 | Targetcancer Foundation Inc. | 990 | Treasurer/Director | 1 | $0 | $0 | View return |
| 2016 | Milton Academy | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | Lucretia Prentiss Bailey Trust of Mass | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2015 | Friends of Harvard Rotc Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Targetcancer Foundation Inc. | 990 | Treasurer/Director | 1 | $0 | $0 | View return |
| 2015 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | Milton Academy | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Friends of Harvard Rotc Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Egan Family Charitable Foundation C/O Choate LLP | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | Milton Academy | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Friends of Harvard Rotc Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Klrn Endowment Fund Inc. | 990 | Trustee | 1 | - | - | View return |