| 2024 | Sub-Zero Wolf Foundation Inc. | 990PF | Secretary/General Counsel, Director | 1 | $0 | $0 | View return |
| 2024 | Highlands Foundation Inc. | 990PF | Secretary & Treasurer | 1 | $0 | $0 | View return |
| 2024 | Center for Advanced Studies in Business Inc. | 990 | Chair | 1 | $0 | $0 | View return |
| 2023 | Sub-Zero Wolf Foundation Inc. | 990PF | Secretary/General Counsel, Director | 1 | $0 | $0 | View return |
| 2023 | Highlands Foundation Inc. | 990PF | Secretary & Treasurer | 1 | $0 | $0 | View return |
| 2023 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Sub-Zero Wolf Foundation Inc. | 990PF | Secretary/General Counsel | 1 | $0 | $0 | View return |
| 2022 | Highlands Foundation Inc. | 990PF | Secretary & Treasurer | 1 | $0 | $0 | View return |
| 2022 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Madison Community Foundation | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2021 | Highlands Foundation Inc. | 990PF | Secretary & Treasurer | 1 | $0 | $0 | View return |
| 2021 | Sub-Zero Wolf Foundation Inc. | 990PF | Secretary/General Counsel | 1 | $0 | $0 | View return |
| 2021 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Madison Community Foundation | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2020 | Highlands Foundation Inc. | 990PF | Secretary & Treasurer | 1 | $0 | $0 | View return |
| 2020 | Sub-Zero Wolf Foundation Inc. | 990PF | Secretary/General Counsel | 1 | $0 | $0 | View return |
| 2019 | Highlands Foundation Inc. | 990PF | Secretary & Treasurer | 1 | $0 | $0 | View return |
| 2019 | Madison Community Foundation | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2019 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Center for Advanced Studies in Business Inc. | 990 | Director | 1 | $0 | - | View return |