| 2024 | Thomas L Kempner Jr Foundation Inc. | 990PF | Vice Pres/Secretary | 0.5 | $0 | $0 | View return |
| 2023 | Thomas L Kempner Jr Foundation Inc. | 990PF | Vice Pres/Secretary | 0.5 | $0 | $0 | View return |
| 2023 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2022 | Thomas L Kempner Jr Foundation Inc. | 990PF | Vice Pres/Secretary | 0.5 | $0 | $0 | View return |
| 2022 | Roundabout Theatre Company Inc. | 990 | Chair | 2 | $0 | $0 | View return |
| 2022 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2022 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2021 | Thomas L Kempner Jr Foundation Inc. | 990PF | Vice Pres/Secretary | 0.5 | $0 | $0 | View return |
| 2021 | Roundabout Theatre Company Inc. | 990 | Chair | 2 | $0 | $0 | View return |
| 2021 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2020 | Thomas L Kempner Jr Foundation Inc. | 990PF | Vice Pres/Secretary | 0.5 | $0 | $0 | View return |
| 2020 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | Juilliard School | 990 | Vice Chairman (Thru 06/2021) | 2 | $0 | $0 | View return |
| 2020 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2019 | Thomas L Kempner Jr Foundation Inc. | 990PF | Vice Pres/Secretary | 0.5 | $0 | $0 | View return |
| 2019 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2019 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2019 | Juilliard School | 990 | Vice Chairman | 2 | $0 | $0 | View return |
| 2018 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2018 | Juilliard School | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2018 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2017 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2017 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2017 | Juilliard School | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2016 | Thomas L Kempner Jr Foundation Inc. | 990PF | Secretary | 0.5 | $0 | $0 | View return |
| 2016 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2016 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2016 | Juilliard School | 990 | Vice Chairman | 2 | $0 | $0 | View return |
| 2015 | Thomas L Kempner Jr Foundation Inc. | 990PF | Secretary | 0.5 | $0 | $0 | View return |
| 2015 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2015 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2015 | Juilliard School | 990 | Vice Chairman | 2 | $0 | $0 | View return |
| 2014 | Thomas L Kempner Jr Foundation Inc. | 990PF | Secretary | 0.5 | $0 | $0 | View return |
| 2014 | Republican Majority for Choice | 990 | Member | 0 | $0 | $0 | View return |
| 2014 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | Juilliard School | 990 | Vice Chairman | 2 | $0 | $0 | View return |
| 2014 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2013 | Republican Majority for Choice | 990 | Member | 0 | $0 | $0 | View return |
| 2013 | Thomas L Kempner Jr Foundation Inc. | 990PF | Secretary | 0.5 | $0 | $0 | View return |
| 2013 | Juilliard School | 990 | Vice Chairman | 2 | - | - | View return |
| 2013 | Thomas L Kempner Jr Foundation Inc. | 990PF | Secretary | 0.5 | $0 | $0 | View return |
| 2013 | American Museum of Natural History Planetarium Authority | 990 | Chairman | 3 | $0 | $0 | View return |
| 2013 | Bridgehampton Chamber Music Associates Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2012 | Thomas L Kempner Jr Foundation Inc. | 990PF | Secretary | 0.5 | $0 | $0 | View return |
| 2011 | Thomas L Kempner Jr Foundation Inc. | 990PF | Secretary | 0.5 | $0 | $0 | View return |
| 2010 | Thomas L Kempner Jr Foundation Inc. | 990PF | Secretary | 0.5 | $0 | $0 | View return |