| 2024 | Benton Institute for Broadband & Society | 990PF | Chairman | 1 | $500 | $0 | View return |
| 2024 | Larry Greenspon Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Benton Institute for Broadband & Society | 990PF | Chairman | 1 | $500 | $0 | View return |
| 2023 | Larry Greenspon Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2023 | The Selfhelp Home Inc | 990 | President | 1 | $0 | $0 | View return |
| 2023 | Joan and Norman Chapman Foundation | 990PF | Director/Treas/Secretary | 3 | $0 | $0 | View return |
| 2022 | Benton Institute for Broadband & Society | 990PF | Chairman | 1 | $500 | $0 | View return |
| 2022 | Larry Greenspon Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | The Selfhelp Home Inc | 990 | President | 1 | $0 | $0 | View return |
| 2022 | Joan and Norman Chapman Foundation | 990PF | Director/Treas/Secretary | 3 | $0 | $0 | View return |
| 2022 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2021 | Benton Institute for Broadband & Society | 990PF | Chairman | 1 | $500 | $0 | View return |
| 2021 | Larry Greenspon Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2021 | Joan and Norman Chapman Foundation | 990PF | Director/Treas/Secretary | 3 | $0 | $0 | View return |
| 2021 | Bulletin of the Atomic Scientists | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2021 | The Selfhelp Home Inc | 990 | President | 1 | $0 | $0 | View return |
| 2020 | Benton Institute for Broadband & Society | 990PF | Chairman | 1 | $500 | $0 | View return |
| 2020 | Bulletin of the Atomic Scientists | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2020 | Larry Greenspon Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Joan and Norman Chapman Foundation | 990PF | Director/Treas/Secretary | 3 | $0 | $0 | View return |
| 2020 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2020 | The Selfhelp Home Inc | 990 | President | 2 | $0 | $0 | View return |
| 2019 | Benton Institute for Broadband & Society | 990PF | Chairman | 1 | $500 | $0 | View return |
| 2019 | Bulletin of the Atomic Scientists | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2019 | Joan and Norman Chapman Foundation | 990PF | Treas/Secretary | 3 | $0 | $0 | View return |
| 2019 | The Selfhelp Home Inc | 990 | President | 2 | $0 | $0 | View return |
| 2019 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2018 | Bulletin of the Atomic Scientists | 990 | Secretary And Treasurer | 2 | $0 | $0 | View return |
| 2018 | Larry Greenspon Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | The Selfhelp Home Inc | 990 | President | 2 | $0 | $0 | View return |
| 2018 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2018 | Joan and Norman Chapman Foundation | 990PF | Treas/Secretary | 3 | $0 | $0 | View return |
| 2017 | Bulletin of the Atomic Scientists | 990 | Secretary And Treasurer | 2 | $0 | $0 | View return |
| 2017 | Larry Greenspon Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2017 | The Selfhelp Home Inc | 990 | President | 2 | $0 | $0 | View return |
| 2017 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2017 | Joan and Norman Chapman Foundation | 990PF | Treas/Secretary | 3 | $0 | $0 | View return |
| 2016 | Larry Greenspon Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2016 | Bulletin of the Atomic Scientists | 990 | Secretary And Treasurer | 2 | $0 | $0 | View return |
| 2016 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2016 | Joan and Norman Chapman Foundation | 990PF | Treas/Secretary | 3 | $0 | $0 | View return |
| 2016 | The Selfhelp Home Inc | 990 | President | 2 | $0 | $0 | View return |
| 2015 | Bulletin of the Atomic Scientists | 990 | Secretary And Treasurer | 2 | $0 | $0 | View return |
| 2015 | Larry Greenspon Foundation Inc | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2015 | The Selfhelp Home Inc | 990 | President | 2 | $0 | $0 | View return |
| 2015 | Joan and Norman Chapman Foundation | 990PF | Treas/Secretary | 3 | $0 | $0 | View return |
| 2015 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2014 | Larry Greenspon Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2014 | Bulletin of the Atomic Scientists | 990 | Secretary And Treasurer | 2 | $0 | $0 | View return |
| 2014 | The Selfhelp Home Inc | 990 | President | 2 | $0 | $0 | View return |
| 2014 | Selfhelp Foundation | 990 | President | 1 | $0 | $0 | View return |
| 2013 | Bulletin of the Atomic Scientists | 990 | Secretary And Treasurer | 2 | $0 | $0 | View return |
| 2013 | Zeta Beta Tau Fraternity | 990EZ | Vice President | 1 | $0 | $0 | View return |
| 2013 | Zeta Beta Tau Fraternity | 990EZ | Director | 1 | $0 | $0 | View return |
| 2013 | Larry Greenspon Foundation Inc | 990PF | Director | 1 | $0 | $0 | View return |
| 2013 | The Selfhelp Home Inc | 990 | President | 2 | - | - | View return |
| 2013 | Selfhelp Foundation | 990 | President | 1 | - | - | View return |