| 2025 | Fishers Island Yacht Club Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2025 | Colt Coeur Theater Company Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Colt Coeur Theater Company Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Cambridge Health Alliance Foundation Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Center for Reproductive Rights Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Cambridge Health Alliance Foundation Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2022 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee, Through 9/30/2022 | 5 | $0 | $0 | View return |
| 2022 | American Repertory Theatre | 990 | Trustee | 5 | $0 | $0 | View return |
| 2022 | Perkins School for the Blind | 990 | Trustee (Until 11/7/22) | 5 | $0 | $0 | View return |
| 2021 | Cambridge Health Alliance Foundation Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Perkins School for the Blind | 990 | Trustee, Vc (Thru 11/21) | 5 | $0 | $0 | View return |
| 2021 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Center for Reproductive Rights Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | Center for Reproductive Rights Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Cambridge Health Alliance Foundation Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Perkins School for the Blind | 990 | Trustee/Vice-Chair | 5 | $0 | $0 | View return |
| 2020 | Center for Reproductive Rights Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | American Repertory Theatre | 990 | Trustee | 5 | $0 | $0 | View return |
| 2019 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Center for Reproductive Rights Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Perkins School for the Blind | 990 | Corporation Vice Chair | 5 | $0 | $0 | View return |
| 2019 | Cambridge Health Alliance Foundation Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Cambridge Health Alliance Foundation Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Perkins School for the Blind | 990 | Corporation Vice Chair | 5 | $0 | $0 | View return |
| 2018 | American Repertory Theatre | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee | 2 | $0 | $0 | View return |
| 2017 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Perkins School for the Blind | 990 | Trustee | 5 | $0 | $0 | View return |
| 2017 | American Repertory Theatre | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | American Repertory Theatre | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Cambridge Health Alliance Foundation Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | American Repertory Theatre | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee | 2 | $0 | $0 | View return |
| 2016 | Cambridge Health Alliance Foundation Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Perkins School for the Blind | 990 | Trustee As Of Nov 2016 | 5 | $0 | $0 | View return |
| 2015 | American Repertory Theatre | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee | 2 | $0 | $0 | View return |
| 2015 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Cambridge Health Alliance Foundation Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | USA Water Polo Inc. | 990 | Member | 4 | $0 | $0 | View return |
| 2014 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2014 | Cambridge Health Alliance Foundation Inc. | 990 | Director As Of 01/15 | 2 | $0 | $0 | View return |
| 2014 | American Repertory Theatre | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee | 2 | $0 | $0 | View return |
| 2013 | USA Water Polo Inc. | 990 | Member | 4 | $0 | $0 | View return |
| 2013 | American Repertory Theatre | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Codman Academy Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Isabella Stewart Gardner Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Board of Trustees of the Leland Stanford Junior University | 990 | Trustee | 2 | - | - | View return |