| 2024 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2023 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2023 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Opera Philadelphia | 990 | Honorary Member | 1 | $0 | $0 | View return |
| 2023 | The Alter Foundation | 990EZ | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2022 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2022 | The Alter Foundation | 990EZ | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2022 | Opera Philadelphia | 990 | Honorary Member | 1 | $0 | $0 | View return |
| 2022 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2021 | Opera Philadelphia | 990 | Honorary Member | 1 | $0 | $0 | View return |
| 2021 | The Alter Foundation | 990EZ | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2021 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2020 | The Alter Foundation | 990EZ | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2020 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2019 | The Alter Foundation | 990EZ | President/Treasurer/Director | 1 | $0 | $0 | View return |
| 2018 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2018 | The Alter Foundation | 990EZ | President/Director | 1 | $0 | $0 | View return |
| 2018 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2017 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Alter Foundation | 990EZ | President/Director | 1 | $0 | $0 | View return |
| 2016 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2016 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | The Alter Foundation | 990EZ | President/Director | 1 | $0 | $0 | View return |
| 2015 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2015 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Alter Foundation | 990EZ | President/Director | 1 | $0 | $0 | View return |
| 2014 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2014 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Alter Foundation | 990EZ | President/Director | 1 | $0 | $0 | View return |
| 2013 | The Alter Family Foundation | 990PF | President/Treasurer/Direct | 1 | $0 | $0 | View return |
| 2013 | Philadelphia Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Alter Foundation | 990EZ | President/Director | 1 | $0 | $0 | View return |
| 2013 | Temple University - of the Commonwealth System of Higher Education | 990 | Trustee (Commonwealth Appointee) | 1 | $0 | $0 | View return |
| 2012 | The Alter Family Foundation | 990PF | President/Treasurer/Director | 1 | $0 | $0 | View return |
| 2011 | The Alter Family Foundation | 990PF | President/Treasurer/Director | 1 | $0 | $0 | View return |