| 2024 | Robert Cottingham Foundation | 990PF | President/Di | 1 | $0 | $0 | View return |
| 2024 | United Way of Dane County Foundation Inc. | 990 | Board Trustee | 1 | $0 | $0 | View return |
| 2024 | Peter Westbrook Foundation Inc. | 990 | CEO & Chairman | 1 | $0 | $0 | View return |
| 2023 | United Way of Dane County Foundation Inc. | 990 | Board Trustee | 1 | $0 | $0 | View return |
| 2023 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2023 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2022 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2022 | United Way of Dane County Foundation Inc. | 990 | Board Trustee | 1 | $0 | $0 | View return |
| 2022 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2021 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2021 | United Way of Dane County Foundation Inc. | 990 | Board Trustee | 1 | $0 | $0 | View return |
| 2021 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2020 | United Way of Dane County Foundation Inc. | 990 | Board Trustee | 1 | $0 | $0 | View return |
| 2020 | Madison Ballet Inc. | 990 | Member | 1 | $0 | $0 | View return |
| 2020 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2020 | Cwtc Foundation | 990 | Secretary | 1 | $0 | $0 | View return |
| 2020 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2019 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2019 | Madison Ballet Inc. | 990 | Member | 1 | $0 | $0 | View return |
| 2019 | Downtown Madison Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | United Way of Dane County Foundation Inc. | 990 | Board Trustee | 1 | $0 | $0 | View return |
| 2019 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2018 | Madison Ballet Inc. | 990 | President | 1 | $0 | $0 | View return |
| 2018 | Downtown Madison Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2018 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2018 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2017 | Downtown Madison Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2017 | Madison Ballet Inc. | 990 | President | 1 | $0 | $0 | View return |
| 2017 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2017 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2016 | Downtown Madison Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2016 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2016 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2016 | Madison Ballet Inc. | 990 | President | 1 | $0 | $0 | View return |
| 2015 | Madison Ballet Inc. | 990 | President | 1 | $0 | $0 | View return |
| 2015 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2015 | Downtown Madison Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2014 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2014 | Madison Ballet Inc. | 990 | President | 1 | $0 | $0 | View return |
| 2014 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2014 | Downtown Madison Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2013 | Peter Westbrook Foundation Inc. | 990 | Chairman | 1 | $0 | $0 | View return |
| 2013 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2013 | Downtown Madison Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2012 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2011 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2010 | Robert Cottingham Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |