| 2023 | Cook Children'S Health Care System | 990 | Secretary | 40 | $183,907 | $0 | View return |
| 2023 | Rosedale Office Building Inc | 990 | Secretary | 1 | $0 | $183,907 | View return |
| 2023 | Child Study Center | 990 | Secretary | 1 | $0 | $183,907 | View return |
| 2023 | W I Cook Foundation Inc. | 990 | Secretary | 1 | $0 | $183,907 | View return |
| 2023 | Cook Children'S Medical Center | 990 | Secretary | 1 | $0 | $183,907 | View return |
| 2023 | Cook Children'S Medical Center - Prosper | 990 | Secretary | 1 | $0 | $183,907 | View return |
| 2023 | Cook Children'S Health Plan | 990 | Secretary | 1 | $0 | $183,907 | View return |
| 2023 | Cook Children'S Home Health | 990 | Secretary | 1 | $0 | $183,907 | View return |
| 2023 | Cook Children'S Health Enterprises | 990 | Secretary | 1 | $0 | $183,907 | View return |
| 2021 | Cook Children'S Health Care System | 990 | Secretary | 40 | $169,553 | $0 | View return |
| 2021 | Cook Children'S Health Enterprises | 990 | Secretary | 1 | $0 | $169,553 | View return |
| 2021 | W I Cook Foundation Inc. | 990 | Secretary | 1 | $0 | $169,553 | View return |
| 2021 | Child Study Center | 990 | Secretary | 1 | $0 | $169,553 | View return |
| 2021 | Cook Children'S Medical Center | 990 | Secretary | 1 | $0 | $169,553 | View return |
| 2021 | Cook Children'S Health Plan | 990 | Secretary | 1 | $0 | $169,553 | View return |
| 2021 | Cook Children'S Home Health | 990 | Secretary | 1 | $0 | $169,553 | View return |
| 2021 | Cook Children'S Medical Center - Prosper | 990 | Secretary | 1 | $0 | $169,553 | View return |
| 2021 | Rosedale Office Building Inc | 990 | Secretary | 1 | $0 | $169,553 | View return |
| 2020 | Cook Children'S Health Care System | 990 | Secretary | 40 | $165,987 | $0 | View return |
| 2020 | Cook Children'S Health Plan | 990 | Secretary | 1 | $0 | $165,987 | View return |
| 2020 | Cook Children'S Medical Center | 990 | Secretary | 1 | $0 | $165,987 | View return |
| 2020 | Cook Children'S Home Health | 990 | Secretary | 1 | $0 | $165,987 | View return |
| 2020 | Cook Children'S Health Enterprises | 990 | Secretary | 1 | $0 | $165,987 | View return |
| 2020 | Cook Children'S Medical Center - Prosper | 990 | Secretary | 1 | $0 | $165,987 | View return |
| 2020 | W I Cook Foundation Inc. | 990 | Secretary | 1 | $0 | $165,987 | View return |
| 2020 | Rosedale Office Building Inc | 990 | Secretary | 1 | $0 | $165,987 | View return |
| 2020 | Child Study Center | 990 | Secretary | 1 | $0 | $165,987 | View return |
| 2019 | Cook Children'S Medical Center | 990 | Secretary | 1 | $157,852 | $0 | View return |