| 2025 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2024 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2023 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2021 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2021 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2020 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2020 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2019 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2019 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2018 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2018 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2017 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2017 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2016 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2016 | American Trucking Associations Inc | 990 | At-Large Member | 1 | $0 | $0 | View return |
| 2016 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2015 | American Trucking Associations Inc | 990 | At-Large Member | 1 | $0 | $0 | View return |
| 2015 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2015 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2014 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2014 | American Trucking Associations Inc | 990 | At-Large Member | 1 | $0 | $0 | View return |
| 2014 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2013 | Iowa Motor Truck Association Inc | 990 | Director | 5 | $0 | $0 | View return |
| 2013 | American Trucking Associations Inc | 990 | At-Large Member | 1 | $0 | $0 | View return |
| 2013 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2012 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2011 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2011 | The Gerdin Charitable Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |