| 2024 | Avalon Theatre Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Avalon Theatre Project Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Faith an Endowment for Orthodoxy & Hellenism | 990 | Chairman | 1 | $0 | $0 | View return |
| 2022 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2021 | Faith an Endowment for Orthodoxy & Hellenism | 990 | Chairman | 1 | $0 | $0 | View return |
| 2021 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Faith an Endowment for Orthodoxy & Hellenism | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Hellenic Initiative Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Hellenic Initiative Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | State University of Iowa Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | University of Iowa Facilities Corporation | 990 | Director | 0 | $0 | $0 | View return |
| 2017 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | Hellenic Initiative Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | State University of Iowa Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Hellenic Initiative Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2016 | Horatio Alger Association of Distinguished Americans Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | State University of Iowa Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2015 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2015 | Hellenic Initiative Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Horatio Alger Association of Distinguished Americans Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | State University of Iowa Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2014 | Horatio Alger Association of Distinguished Americans Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2014 | Hellenic Initiative Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | State University of Iowa Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2013 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2013 | Hellenic Initiative Inc. | 990 | Board Member | 1 | $0 | - | View return |
| 2013 | State University of Iowa Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2012 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2011 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2011 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2010 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2010 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2009 | The John & Mary Pappajohn Art Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2009 | John & Mary Pappajohn Scholarship Foundation | 990PF | Director | 1 | $0 | $0 | View return |