| 2024 | American Friends of the Warburg | 990EZ | Treasurer | 1 | $0 | $0 | View return |
| 2024 | The Population Council Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2024 | Los Angeles County Parks Foundation | 990 | Member | 2 | $0 | $0 | View return |
| 2024 | Rise and Shine Bakery | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Rise and Shine Bakery | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Population Council Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Los Angeles County Parks Foundation | 990 | Member | 2 | $0 | $0 | View return |
| 2023 | American Friends of the Warburg | 990EZ | Treasurer | 1 | $0 | $0 | View return |
| 2023 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2023 | Los Angeles Philharmonic Association | 990 | Chair, Hollywood Bowl | 1 | $0 | $0 | View return |
| 2023 | American Numismatic Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Century Association Archives Foundation | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2023 | Severn School Inc | 990 | Secretary | 3 | $0 | $0 | View return |
| 2022 | American Friends of the Warburg | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2022 | The Population Council Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | American Numismatic Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | The Grolier Club of the City of New York | 990 | Council Member (To 1/23) | 4 | $0 | $0 | View return |
| 2022 | Severn School Inc | 990 | Secretary | 3 | $0 | $0 | View return |
| 2022 | Los Angeles Philharmonic Association | 990 | Chair, Hollywood Bowl | 1 | $0 | $0 | View return |
| 2022 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2021 | The Population Council Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | American Friends of the Bible Lands | 990 | Treasurer (Through 6/2022) | 1.5 | $0 | $0 | View return |
| 2021 | American Friends of the Warburg | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2021 | The Grolier Club of the City of New York | 990 | Council Member | 4 | $0 | $0 | View return |
| 2021 | Los Angeles Philharmonic Association | 990 | Chair, Hollywood Bowl | 1 | $0 | $0 | View return |
| 2021 | American Numismatic Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2020 | American Friends of the Warburg | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2020 | The Population Council Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | American Numismatic Society | 990 | Treasurer Thru Oct 2020/Trustee | 2 | $0 | $0 | View return |
| 2020 | The Grolier Club of the City of New York | 990 | Council Member | 4 | $0 | $0 | View return |
| 2020 | Los Angeles Philharmonic Association | 990 | Chair, Hollywood Bowl | 1 | $0 | $0 | View return |
| 2020 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2019 | The Population Council Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | American Friends of the Warburg | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2019 | Los Angeles Philharmonic Association | 990 | Co-Chair Overseers, Vc Bowl | 1 | $0 | $0 | View return |
| 2019 | The Grolier Club of the City of New York | 990 | Council Member (2/1/20-8/31/20) | 4 | $0 | $0 | View return |
| 2019 | American Friends of the Bible Lands | 990 | Treasurer | 1.5 | $0 | $0 | View return |
| 2019 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2019 | American Numismatic Society | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2018 | American Friends of the Warburg | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2018 | The Population Council Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | American Friends of the Bible Lands | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2018 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2018 | Los Angeles Philharmonic Association | 990 | Co-Chair Overseers, Vc Bowl | 1 | $0 | $0 | View return |
| 2017 | American Friends of the Warburg | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2017 | The Population Council Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Los Angeles Philharmonic Association | 990 | Co-Chair Overseers; Vice Chair Bowl | 1 | $0 | $0 | View return |
| 2017 | American Friends of the Bible Lands | 990 | Treasurer | 1.5 | $0 | $0 | View return |
| 2017 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2017 | American Friends of the Bible Lands | 990 | Treasurer | 1.5 | $0 | $0 | View return |
| 2016 | American Friends of the Warburg | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2016 | American Friends of the Bible Lands | 990 | Treasurer | 1.5 | $0 | $0 | View return |
| 2016 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2015 | Annapolis Symphony Orchestra Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | American Friends of the Warburg | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2015 | Los Angeles Philharmonic Association | 990 | Co-Chair, Board Of Overseers & Vice Chair, Hollywo | 1 | $0 | $0 | View return |
| 2015 | American Friends of the Bible Lands | 990 | Treasurer | 1.5 | $0 | $0 | View return |
| 2015 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2014 | American Friends of the Bible Lands | 990 | Treasurer | 1.5 | $0 | $0 | View return |
| 2014 | Los Angeles Philharmonic Association | 990 | Co-Chair, Bd Of Overseers & Vc, Hollywood | 1 | $0 | $0 | View return |
| 2014 | Annapolis Symphony Orchestra Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | American Friends of the British | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2013 | Annapolis Symphony Orchestra Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Los Angeles Philharmonic Association | 990 | Co-Chair, Bd Of Overseer (From 5/14) | 1 | $0 | $0 | View return |