| 2024 | Gerborg Family Foundation | 990PF | President, Trustee | 1 | $0 | $0 | View return |
| 2023 | Gerborg Family Foundation | 990PF | President, Trustee | 1 | $0 | $0 | View return |
| 2022 | Gerborg Family Foundation | 990PF | President, Trustee | 1 | $0 | $0 | View return |
| 2021 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2020 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2019 | River Centre Clinic Foundation | 990PF | Board Member | 0.25 | $0 | $0 | View return |
| 2019 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2018 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2018 | River Centre Clinic Foundation | 990PF | Board Member | 0.25 | $0 | $0 | View return |
| 2017 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2017 | River Centre Clinic Foundation | 990PF | Board Member | 0.25 | $0 | $0 | View return |
| 2016 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2016 | River Centre Clinic Foundation | 990PF | Board Member | 0.25 | $0 | $0 | View return |
| 2015 | River Centre Clinic Foundation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2015 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2014 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2014 | River Centre Clinic Foundation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2013 | River Centre Clinic Foundation | 990PF | Member | 0.23 | $0 | $0 | View return |
| 2013 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2012 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2012 | River Centre Clinic Foundation | 990PF | Member | 0.23 | $0 | $0 | View return |
| 2011 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2011 | River Centre Clinic Foundation | 990PF | Member | 0.2 | $0 | $0 | View return |
| 2010 | Gerborg Family Foundation | 990PF | President, Trustee | 5 | $0 | $0 | View return |
| 2010 | River Centre Clinic Foundation | 990PF | Board Member | 0.2 | $0 | $0 | View return |