| 2024 | Huizenga Foundation | 990PF | President, Director | 0 | $0 | $0 | View return |
| 2024 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Huizenga Foundation | 990PF | President, Director | 0 | $0 | - | View return |
| 2023 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Naples Zoo Inc. | 990 | Board Member | 3 | $0 | $0 | View return |
| 2022 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | Huizenga Foundation | 990PF | President, Director | 0 | $0 | - | View return |
| 2022 | Naples Zoo Inc. | 990 | Board Member | 3 | $0 | $0 | View return |
| 2021 | Huizenga Foundation | 990PF | President, Director | 0 | $0 | - | View return |
| 2021 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | Stephen'S Children Foundation Inc | 990 | Former Treasurer And Secretary Through 2/2021 | 1 | $0 | $0 | View return |
| 2020 | Huizenga Foundation | 990PF | President, Director | 0 | $0 | - | View return |
| 2020 | Stephen'S Children Foundation Inc | 990 | Treasurer And Secretary | 1 | $0 | $0 | View return |
| 2020 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Huizenga Foundation | 990PF | President, Director | 0 | $0 | - | View return |
| 2019 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Stephen'S Children Foundation Inc | 990 | Treasurer And Secretary | 1 | $0 | $0 | View return |
| 2018 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | Prison Fellowship Ministries | 990 | Secretary | 1 | $0 | $0 | View return |
| 2018 | Stephen'S Children Foundation Inc | 990 | Treasurer And Secretary | 1 | $0 | $0 | View return |
| 2017 | Stephen'S Children Foundation Inc | 990 | Treasurer And Secretary | 1 | $0 | $0 | View return |
| 2017 | Prison Fellowship Ministries | 990 | Secretary | 1 | $0 | $0 | View return |
| 2016 | Stephen'S Children Foundation Inc | 990 | Treasurer And Secretary | 1 | $0 | $0 | View return |
| 2016 | Obrien Schools for the Maasai Nfp | 990 | Director | 0 | $0 | $0 | View return |
| 2016 | Prison Fellowship Ministries | 990 | Secretary/Ex Committee CHA | 1 | $0 | $0 | View return |
| 2015 | Obrien Schools for the Maasai Nfp | 990 | Director | 0 | $0 | $0 | View return |
| 2015 | Stephen'S Children Foundation Inc | 990 | Treasurer And Secretary | 1 | $0 | $0 | View return |
| 2015 | Prison Fellowship Ministries | 990 | Secretary/Ex Committee CHA | 1 | $0 | $0 | View return |
| 2015 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2014 | Stephen'S Children Foundation Inc | 990 | Treasurer And Secretary | 1 | $0 | $0 | View return |
| 2014 | Obrien Schools for the Maasai Nfp | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2014 | Prison Fellowship Ministries | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Obrien Schools for the Maasai Nfp | 990EZ | Director | 0 | $0 | - | View return |
| 2013 | Stephen'S Children Foundation Inc | 990 | Treasurer And Secretary | 1 | $0 | $0 | View return |
| 2013 | Chicago Zoological Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2013 | Huizenga Foundation | 990PF | Treas/Director | 0 | $0 | - | View return |
| 2013 | Prison Fellowship Ministries | 990 | Board Member | 1 | - | - | View return |