| 2024 | The Abell Foundation Inc. | 990PF | President | 37.5 | $302,700 | $64,536 | View return |
| 2024 | Greater Baltimore Committee Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2023 | The Abell Foundation Inc. | 990PF | President | 37.5 | $507,040 | $63,531 | View return |
| 2023 | Economic Alliance of Greater Baltimore Foundation Inc | 990PF | Secretary | 1 | $0 | - | View return |
| 2023 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2023 | Healthy Neighborhoods Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Greater Baltimore Committee Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2023 | Collegebound Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2022 | The Abell Foundation Inc. | 990PF | President | 37.5 | $307,009 | $30,500 | View return |
| 2022 | Healthy Neighborhoods Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Greater Baltimore Committee Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2022 | Greater Baltimore Committee Inc | 990 | Secretary | 1 | $0 | $0 | View return |
| 2022 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2022 | Economic Alliance of Greater Baltimore Inc | 990EZ | Secretary | 1 | $0 | - | View return |
| 2022 | Collegebound Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2021 | The Abell Foundation Inc. | 990PF | President | 37.5 | $306,755 | $29,000 | View return |
| 2021 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2021 | Healthy Neighborhoods Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Greater Baltimore Committee Inc | 990 | Secretary | 1 | $0 | $0 | View return |
| 2021 | Collegebound Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2020 | The Abell Foundation Inc. | 990PF | President | 37.5 | $313,472 | $28,500 | View return |
| 2020 | Healthy Neighborhoods Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2020 | Greater Baltimore Committee Inc | 990 | Secretary | 1 | $0 | $0 | View return |
| 2020 | Collegebound Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2019 | Greater Baltimore Committee Inc | 990 | Secretary | 1 | $0 | $0 | View return |
| 2019 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2019 | Healthy Neighborhoods Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Collegebound Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2018 | Healthy Neighborhoods Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Greater Baltimore Committee Inc | 990 | Secretary | 1 | $0 | $0 | View return |
| 2018 | Collegebound Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2017 | Greater Baltimore Committee Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2017 | Greater Baltimore Committee Inc | 990 | Secretary | 1 | $0 | $0 | View return |
| 2017 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2017 | Healthy Neighborhoods Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Collegebound Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2016 | Greater Baltimore Committee Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2016 | 1000 Friends of Maryland | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Greater Baltimore Committee Inc | 990 | Secretary | 1 | $0 | $0 | View return |
| 2016 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2016 | Healthy Neighborhoods Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Collegebound Foundation Inc. | 990 | Treasurer | 0 | $0 | $0 | View return |
| 2015 | Greater Baltimore Committee Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2015 | Greater Baltimore Committee Inc | 990 | Secretary | 1 | $0 | $0 | View return |
| 2015 | 1000 Friends of Maryland | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2015 | Healthy Neighborhoods Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Greater Baltimore Committee Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2014 | 1000 Friends of Maryland | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2014 | Collegebound Foundation Inc. | 990 | Treasurer | - | $0 | $0 | View return |
| 2014 | Greater Baltimore Committee Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2013 | Greater Baltimore Committee Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2013 | Greater Baltimore Committee Foundation Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2013 | 1000 Friends of Maryland | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Healthy Neighborhoods Inc. | 990 | Trustee | 5 | $0 | $0 | View return |
| 2013 | Patricia and Mark Joseph Shelter Foundation Inc. | 990 | Secretary | 1 | $0 | $0 | View return |
| 2013 | Collegebound Foundation Inc. | 990 | Treasurer | - | $0 | $0 | View return |