| 2024 | Commentary Inc. | 990 | Chairman | 2 | $0 | $0 | View return |
| 2024 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2024 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2024 | Lisa and Michael Leffell Foundation | 990PF | Officer | 5 | $0 | $0 | View return |
| 2023 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2023 | Commentary Inc. | 990 | Chairman | 2 | $0 | $0 | View return |
| 2023 | Lisa and Michael Leffell Foundation | 990PF | Officer | 5 | $0 | $0 | View return |
| 2022 | Lisa and Michael Leffell Foundation | 990PF | Officer | 5 | $0 | $0 | View return |
| 2022 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2022 | Commentary Inc. | 990 | Chairman | 2 | $0 | $0 | View return |
| 2021 | Lisa and Michael Leffell Foundation | 990PF | Officer | 5 | $0 | $0 | View return |
| 2021 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2021 | Commentary Inc. | 990 | Member | 2 | $0 | $0 | View return |
| 2020 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2020 | Commentary Inc. | 990 | Member | 2 | $0 | $0 | View return |
| 2020 | Lisa and Michael Leffell Foundation | 990PF | Officer | 5 | $0 | $0 | View return |
| 2020 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2019 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2019 | Lisa and Michael Leffell Foundation | 990PF | Officer | 5 | $0 | $0 | View return |
| 2019 | Commentary Inc. | 990 | Member | 2 | $0 | $0 | View return |
| 2018 | Foundation for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Lisa and Michael Leffell Foundation | 990PF | Officer | 5 | $0 | $0 | View return |
| 2018 | Commentary Inc. | 990 | Member | 2 | $0 | $0 | View return |
| 2018 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2018 | Coalition for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Lisa and Michael Leffell Foundation | 990PF | Officer | 5 | $0 | $0 | View return |
| 2017 | Foundation for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | The Jewish Institute for National Security of America | 990 | Vice President | 0.3 | $0 | $0 | View return |
| 2017 | Commentary Inc. | 990 | Member | 2 | $0 | $0 | View return |
| 2017 | Coalition for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Coalition for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Lisa and Michael Leffell Foundation | 990PF | Officer | 5 | $0 | $0 | View return |
| 2016 | Commentary Inc. | 990 | Member | 2 | $0 | $0 | View return |
| 2016 | Foundation for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Commentary Inc. | 990 | Member | 2 | $0 | $0 | View return |
| 2015 | Lisa and Michael Leffell Foundation | 990PF | 0 | 5 | $0 | - | View return |
| 2015 | Caroline & Joseph S Gruss Life Monument Funds Inc. | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2014 | Foundation for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Caroline & Joseph S Gruss Life Monument Funds Inc. | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2014 | Commentary Inc. | 990 | Member | 2 | $0 | $0 | View return |
| 2014 | Lisa and Michael Leffell Foundation | 990PF | 0 | 5 | $0 | - | View return |
| 2014 | Coalition for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Coalition for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Caroline & Joseph S Gruss Life Monument Funds Inc. | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2013 | Commentary Inc. | 990 | Member | 2 | $0 | $0 | View return |
| 2013 | Foundation for Opportunity in Education | 990 | Director | 1 | $0 | $0 | View return |