| 2025 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2024 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2024 | William a Linton Charitable Foundation Inc. | 990EZ | Director, Chair, President | 1 | $0 | $0 | View return |
| 2024 | Usona Institute Inc. | 990 | President | 10 | $0 | $0 | View return |
| 2024 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Usona Institute Inc. | 990 | President | 10 | $0 | $0 | View return |
| 2023 | William a Linton Charitable Foundation Inc. | 990EZ | Director, Chair, President | 1 | $0 | $0 | View return |
| 2023 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2023 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Marine Biological Laboratory | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Usona Institute Inc. | 990 | President | 5 | $0 | $0 | View return |
| 2022 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2022 | William a Linton Charitable Foundation Inc. | 990EZ | Director, Chair, President | 1 | $0 | $0 | View return |
| 2022 | Delta Sigma Phi Fraternity Inc Beta Pi Chapter | 990EZ | Seargant At | 3 | $0 | - | View return |
| 2022 | Marine Biological Laboratory | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Heffter Research Institute Inc | 990 | Treasurer | 0 | $0 | $0 | View return |
| 2021 | Usona Institute Inc. | 990 | President | 5 | $0 | $0 | View return |
| 2021 | William a Linton Charitable Foundation Inc. | 990EZ | Director, Chair, President | 1 | $0 | $0 | View return |
| 2021 | Heffter Research Institute | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2021 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2021 | Marine Biological Laboratory | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Heffter Research Institute Inc | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2020 | William a Linton Charitable Foundation Inc. | 990EZ | Director, Chair, President | 1 | $0 | $0 | View return |
| 2020 | Usona Institute Inc. | 990 | President | 5 | $0 | $0 | View return |
| 2020 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2020 | Heffter Research Institute | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2020 | Marine Biological Laboratory | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2019 | William a Linton Charitable Foundation Inc. | 990EZ | Director, Chair, President | 1 | $0 | $0 | View return |
| 2019 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Usona Institute Inc. | 990 | President | 5 | $0 | $0 | View return |
| 2019 | Heffter Research Institute Inc | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2018 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2018 | Heffter Research Institute Inc | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2018 | Usona Institute Inc. | 990 | President | 5 | $0 | $0 | View return |
| 2018 | William a Linton Charitable Foundation Inc. | 990EZ | Director, Chair And Presid | 1 | $0 | $0 | View return |
| 2018 | Heffter Research Institute Inc | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2017 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2017 | Usona Institute Inc. | 990 | President | 5 | $0 | $0 | View return |
| 2017 | William a Linton Charitable Foundation Inc. | 990EZ | Director, Chair And President | 1 | $0 | $0 | View return |
| 2017 | Heffter Research Institute Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Usona Institute Inc. | 990 | President | 5 | $0 | $0 | View return |
| 2016 | Heffter Research Institute Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Heffter Research Institute Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Usona Institute Inc. | 990 | President | 5 | $0 | $0 | View return |
| 2015 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Wisconsin Technology Council Inc. | 990 | Member | 1 | $0 | $0 | View return |
| 2014 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Heffter Research Institute Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Analytical Life Science & Diagnostics | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Heffter Research Institute Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2009 | Biopharmaceutical Technology Center Institute Inc. | 990PF | President | 2 | $0 | $0 | View return |