| 2025 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2024 | Mha Center for Education | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2024 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2024 | Hospital Industry Data Institute | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2024 | Missouri Hospital Association | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2023 | Brinton Association of America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2022 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2022 | Brinton Association of America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2021 | Brinton Association of America Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Brinton Association of America Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2019 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2019 | Brinton Association of America Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2018 | Brinton Association of America Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Brinton Association of America Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2016 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2016 | Brinton Association of America Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2015 | Connectcass C/O Chris Molendorp | 990EZ | Treasurer | 5 | $0 | $0 | View return |
| 2015 | Brinton Association of America Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Connectcass C/O Chris Molendorp | 990EZ | Treasurer | 5 | $0 | $0 | View return |
| 2014 | Lang Family Foundation Inc. | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2013 | Connectcass C/O Chris Molendorp | 990EZ | Treasurer | 5 | $0 | $0 | View return |