| 2024 | Sheldon L and Pearl R Leibowitz Dale Leibowitz Legacy Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Prl Keystone Foundation Inc. | 990PF | Treasurer, Director | 1 | $0 | $0 | View return |
| 2023 | Prl Keystone Foundation Inc. | 990PF | Treasurer, Director | 1 | $0 | $0 | View return |
| 2023 | Sheldon L and Pearl R Leibowitz Dale Leibowitz Legacy Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Sheldon L and Pearl R Leibowitz Dale Leibowitz Legacy Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Prl Keystone Foundation Inc. | 990PF | Treasurer, Director | 1 | $0 | $0 | View return |
| 2021 | Sheldon L and Pearl R Leibowitz Dale Leibowitz Legacy Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2020 | Sheldon L and Pearl R Leibowitz Dale Leibowitz Legacy Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2019 | Sheldon L and Pearl R Leibowitz Dale Leibowitz Legacy Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2019 | Purple Moon Foundation Inc | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2019 | Frances L Nelson Foundation Ltd | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2018 | Purple Moon Foundation Inc | 990PF | Secretary, Treasurer, Director | 0.5 | $14,798 | $0 | View return |
| 2018 | Sheldon L and Pearl R Leibowitz Dale Leibowitz Legacy Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2018 | Frances L Nelson Foundation Ltd | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2017 | Frances L Nelson Foundation Ltd | 990PF | Secretary, Treasurer, Director | 0.5 | $22,988 | $0 | View return |
| 2017 | Purple Moon Foundation Inc | 990PF | Secretary, Treasurer, Director | 0.5 | $17,172 | $0 | View return |
| 2017 | Sheldon L and Pearl R Leibowitz Dale Leibowitz Legacy Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2016 | Frances L Nelson Foundation Ltd | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2016 | Purple Moon Foundation Inc | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2015 | Purple Moon Foundation Inc | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2015 | Frances L Nelson Foundation Ltd | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2014 | Frances L Nelson Foundation Ltd | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2014 | Purple Moon Foundation Inc | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2013 | Frances L Nelson Foundation Ltd | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |
| 2013 | Purple Moon Foundation Inc | 990PF | Secretary, Treasurer, Director | 0.5 | $0 | $0 | View return |