| 2025 | Audrey and Martin Gruss Foundation | 990PF | Co-President | 0 | $0 | $0 | View return |
| 2024 | Audrey and Martin Gruss Foundation | 990PF | Co-President | 0 | $0 | $0 | View return |
| 2024 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Audrey and Martin Gruss Foundation | 990PF | Co-President | 0 | $0 | $0 | View return |
| 2023 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Norton Museum of Art Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Hope for Depression Research Foundation | 990 | Chairman & Director | 20 | $0 | $0 | View return |
| 2023 | Hospice Foundation of Palm Beach County Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Audrey and Martin Gruss Foundation | 990PF | Co-President | 0 | $0 | $0 | View return |
| 2022 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Hope for Depression Research Foundation | 990 | Chairman & Director | 20 | $0 | $0 | View return |
| 2022 | Hospice Foundation of Palm Beach County Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Norton Museum of Art Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | Audrey and Martin Gruss Foundation | 990PF | Co-President | 5 | $0 | $0 | View return |
| 2021 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Hope for Depression Research Foundation | 990 | Chairman & Director | 20 | $0 | $0 | View return |
| 2020 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Audrey and Martin Gruss Foundation | 990PF | Co-President | 5 | $0 | $0 | View return |
| 2020 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Hospice Foundation of Palm Beach County Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Hospice Foundation of Palm Beach County Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Hope for Depression Research Foundation | 990 | Chairman & Director | 20 | $0 | $0 | View return |
| 2019 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Hope for Depression Research Foundation | 990 | Chairman & Director | 10 | $0 | $0 | View return |
| 2018 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Hope for Depression Research Foundation | 990 | Chairman & Director | 10 | $0 | $0 | View return |
| 2017 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Hope for Depression Research Foundation | 990 | Chairman & Director | 10 | $0 | $0 | View return |
| 2016 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Hope for Depression Research Foundation | 990 | Chairman & Director | 10 | $0 | $0 | View return |
| 2015 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Byrd Hoffman Water MILL Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Lincoln Center for the Performing Arts Inc. | 990 | Director Thru 6/6/2016 | 1 | $0 | $0 | View return |
| 2014 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Hope for Depression Research Foundation | 990 | Chairman & Director | 10 | - | - | View return |
| 2014 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Lenox Hill Neighborhood House Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Victoria and Albert Museum Americas Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Hope for Depression Research Foundation | 990 | Chairman & Director | 10 | $0 | $0 | View return |
| 2013 | Friends of Fai the Italian Environment Foundation Inc. | 990 | Advisory Board | 0.3 | $0 | $0 | View return |