| 2024 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | The Stone Trust Corporation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2024 | Cambridge in America | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2024 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | American Repertory Theatre Co Inc | 990 | Trustee;Alphonse Fletcher, Jr., University Profess | 5 | $0 | $641,555 | View return |
| 2023 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Aspen Institute Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | W E B Du Bois Museum Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2023 | Statue of Liberty Ellis Island Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2023 | The Stone Trust Corporation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2023 | Cambridge in America | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2023 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | American Repertory Theatre Co Inc | 990 | Trustee; Alphonse Fletcher, Jr., University | 5 | $0 | $569,154 | View return |
| 2022 | Statue of Liberty Ellis Island Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Aspen Institute Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Stone Trust Corporation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2022 | W E B Du Bois Museum Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2022 | Cambridge in America | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2022 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2022 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee (End 11/9/22) | 1 | $0 | $0 | View return |
| 2021 | American Repertory Theatre Co Inc | 990 | Trustee; Alphonse Fletcher, Jr., University Profes | 5 | $0 | $552,224 | View return |
| 2021 | The Aspen Institute Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Statue of Liberty Ellis Island Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Ngaren Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | W E B Du Bois Museum Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2021 | The Stone Trust Corporation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2021 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | American Repertory Theatre Co Inc | 990 | Trustee; Alphonse Fletcher, Jr., University Profes | 5 | $0 | $567,337 | View return |
| 2020 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | W E B Du Bois Museum Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | Ngaren Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | The Aspen Institute Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Helping Africa Foundation Inc. | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2020 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2020 | The Stone Trust Corporation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2020 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | American Repertory Theatre Co Inc | 990 | Trustee | 5 | $0 | $562,534 | View return |
| 2019 | Ngaren Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2019 | The Aspen Institute Inc. | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2019 | Sea the World Productions Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Helping Africa Foundation Inc. | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2019 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2019 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | American Repertory Theatre Co Inc | 990 | Trustee | 1 | $0 | $558,556 | View return |
| 2018 | Sea the World Productions Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Helping Africa Foundation Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2018 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Ngaren Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2018 | The Aspen Institute Inc. | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2018 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2018 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Gilder Lehrman Institute of American History | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | American Repertory Theatre Co Inc | 990 | Trustee | 1 | $0 | $568,898 | View return |
| 2017 | American Repertory Theatre Co Inc | 990 | Trustee | 1 | $0 | $568,898 | View return |
| 2017 | The Aspen Institute Inc. | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2017 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Sea the World Productions Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Helping Africa Foundation Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2017 | Learning Policy Institute | 990 | Director | 5 | $0 | $0 | View return |
| 2017 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2017 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | American Repertory Theatre Co Inc | 990 | Trustee | 1 | $0 | $539,402 | View return |
| 2016 | The Aspen Institute Inc. | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2016 | Learning Policy Institute | 990 | Director | 5 | $0 | $0 | View return |
| 2016 | Reverend Pinckney Scholarship Fund | 990 | Board | 5 | $0 | $0 | View return |
| 2016 | Helping Africa Foundation Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2016 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2016 | College Track | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Reverend Pinckney Scholarship Fund | 990 | Board | 5 | $0 | $0 | View return |
| 2015 | Learning Policy Institute | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Sea the World Productions Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Helping Africa Foundation Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | The Aspen Institute Inc. | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2015 | New York Genealogical and Biographical Society | 990 | Trustee | 0.2 | $0 | $0 | View return |
| 2015 | New England Historic Genealogical Society Inc. | 990 | Trustee | 1.5 | $0 | $0 | View return |
| 2015 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | College Track | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2015 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | NAACP Legal Defense & Educ Fund Inc | 990 | Board Member | 1.5 | $0 | $0 | View return |
| 2015 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Pro Publica Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | The Aspen Institute Inc. | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2014 | New York Genealogical and Biographical Society | 990 | Trustee | 0.2 | $0 | $0 | View return |
| 2014 | NAACP Legal Defense & Educ Fund Inc | 990 | Board Member | 1.5 | $0 | $0 | View return |
| 2014 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2014 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | College Track | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | The Aspen Institute Inc. | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2013 | The New York Historical Society | 990 | Trustee Through 9/9/13 | 1 | $0 | $0 | View return |
| 2013 | Whitney Museum of American Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | NAACP Legal Defense & Educ Fund Inc | 990 | Board Member | 1.5 | $0 | $0 | View return |
| 2013 | The Vivian Beaumont Theaterinc | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | The New York Public Library Astor Lenox and Tilden Foundations | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Literary Classics of the United States Inc. | 990 | Director | 5 | $0 | $0 | View return |