| 2024 | The Tranquillity Endowment Fund | 990 | Vice President | 0.5 | $0 | $0 | View return |
| 2024 | Elias a Cohen Foundation Inc. | 990PF | Dir, Co-Pres | 1 | $0 | $0 | View return |
| 2024 | Charles Cohn Library of the North Synagogue Char Tr UW Seymour Cohn | 990PF | Trustee | 1 | $0 | - | View return |
| 2024 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2023 | Charles Cohn Library of the North Synagogue Char Tr UW Seymour Cohn | 990PF | Trustee | 1 | $0 | - | View return |
| 2023 | Tranquillity Alumni & Friends Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | The Tranquillity Endowment Fund | 990 | Co-President | 0.5 | $0 | $0 | View return |
| 2023 | Elias a Cohen Foundation Inc. | 990PF | Dir, Co-Pres | 1 | $0 | $0 | View return |
| 2023 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2022 | Charles Cohn Library of the North Synagogue Char Tr UW Seymour Cohn | 990PF | Trustee | 1 | $0 | - | View return |
| 2022 | The Tranquillity Endowment Fund | 990 | Co-President | 0.5 | $0 | $0 | View return |
| 2022 | Elias a Cohen Foundation Inc. | 990PF | Dir, Co-Pres | 1 | $0 | $0 | View return |
| 2022 | Tranquillity Alumni & Friends Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2022 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2021 | Tranquillity Alumni & Friends Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2021 | The Tranquillity Endowment Fund | 990 | Co-President | 0.5 | $0 | $0 | View return |
| 2021 | Elias a Cohen Foundation Inc. | 990PF | Dir, Co-Pres | 1 | $0 | $0 | View return |
| 2021 | Charles Cohn Library of the North Synagogue Char Tr UW Seymour Cohn | 990PF | Trustee | 1 | $0 | - | View return |
| 2021 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2020 | Charles Cohn Library of the North Synagogue Char Tr UW Seymour Cohn | 990PF | Trustee | 1 | $0 | - | View return |
| 2020 | The Tranquillity Endowment Fund | 990 | Co-President | 0.5 | $0 | $0 | View return |
| 2020 | Tranquillity Alumni & Friends Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | Elias a Cohen Foundation Inc. | 990PF | Dir, Co-Pres | 1 | $0 | $0 | View return |
| 2020 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2019 | Charles Cohn Library of the North Synagogue Char Tr UW Seymour Cohn | 990PF | Trustee | 1 | $0 | - | View return |
| 2019 | Tranquillity Alumni & Friends Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2019 | The Tranquillity Endowment Fund | 990 | Co-President | 0.5 | $0 | $0 | View return |
| 2019 | Elias a Cohen Foundation Inc. | 990PF | Dir, Co-Pres | 1 | $0 | $0 | View return |
| 2019 | Hillel of Silicon Valley Inc | 990 | Board Member | 3 | $0 | $0 | View return |
| 2019 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2018 | Charles Cohn Library of the North Synagogue Char Tr UW Seymour Cohn | 990PF | Trustee | 1 | $27 | - | View return |
| 2018 | The Tranquillity Endowment Fund | 990 | Co-President | 0.5 | $0 | $0 | View return |
| 2018 | Tranquillity Alumni & Friends Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2018 | Elias a Cohen Foundation Inc. | 990PF | Co-Pres / Director | 1 | $0 | $0 | View return |
| 2018 | Hillel of Silicon Valley Inc | 990 | Board Member | 3 | $0 | $0 | View return |
| 2018 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2018 | Elias a Cohen Foundation Inc. | 990PF | Co-Pres / Director | 1 | $0 | $0 | View return |
| 2017 | Charles Cohn Library of the North Synagogue Char Tr UW Seymour Cohn | 990PF | Trustee | 1 | $48 | - | View return |
| 2017 | Elias a Cohen Foundation Inc. | 990PF | Dir, Co-Pres | 1 | $0 | $0 | View return |
| 2017 | Opendaylight Project Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2017 | Hillel of Silicon Valley Inc | 990 | Board Member | 3 | $0 | $0 | View return |
| 2017 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2016 | Tranquillity Alumni & Friends Inc. | 990EZ | Director | 0 | $0 | $0 | View return |
| 2016 | Tranquillity Camp Inc. | 990 | Vice President/Director As Needed | 0 | $0 | $0 | View return |
| 2016 | The Tranquillity Endowment Fund | 990 | President | 0.5 | $0 | $0 | View return |
| 2016 | Opendaylight Project Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Elias a Cohen Foundation Inc. | 990PF | Pres / Director | 1 | $0 | $0 | View return |
| 2016 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2016 | Hillel of Silicon Valley Inc | 990 | Board Member | 3 | $0 | $0 | View return |
| 2015 | Charles Cohn Library of the North Synagogue Char Tr UW Seymour Cohn | 990PF | Trustee | 1 | $108 | - | View return |
| 2015 | Tranquillity Alumni & Friends Inc. | 990EZ | Director | 0 | $0 | $0 | View return |
| 2015 | Tranquillity Camp Inc. | 990 | Vice President/Director As Needed | 0 | $0 | $0 | View return |
| 2015 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2014 | Tranquillity Alumni & Friends Inc. | 990EZ | Director | 0 | $0 | $0 | View return |
| 2014 | Tranquillity Camp Inc. | 990 | VP/Secretary/Director As Needed | 0 | $0 | $0 | View return |
| 2014 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2013 | Tranquillity Alumni & Friends Inc. | 990EZ | Director | 0 | $0 | $0 | View return |
| 2013 | Tranquillity Camp Inc. | 990 | VP/Secretary/Director As Needed | 0 | $0 | $0 | View return |
| 2013 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2012 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2011 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |
| 2010 | The Charles Cohn Foundation Inc | 990PF | President | 2 | $0 | $0 | View return |