| 2024 | Greenhorn Firewise Community | 990EZ | Vice Chair | 15 | $0 | $0 | View return |
| 2023 | Population Media Center Inc. | 990 | President | 40 | $292,204 | $0 | View return |
| 2023 | The Population Institute Inc | 990 | Chair | 4 | $0 | $292,204 | View return |
| 2023 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2023 | Music for the Earth Inc. | 990EZ | Trustee | 8 | $0 | - | View return |
| 2022 | Population Media Center Inc. | 990 | President | 40 | $275,373 | $0 | View return |
| 2022 | The Population Institute Inc | 990 | Chair | 4 | $0 | $275,373 | View return |
| 2022 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2022 | Music for the Earth Inc. | 990EZ | Trustee | 8 | $0 | - | View return |
| 2021 | Population Media Center Inc. | 990 | President | 40 | $258,572 | $0 | View return |
| 2021 | The Population Institute Inc | 990 | Chair | 4 | $0 | $258,572 | View return |
| 2021 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2020 | Population Media Center Inc. | 990 | President | 40 | $252,346 | $0 | View return |
| 2020 | The Population Institute Inc | 990 | Chair | 10 | $0 | $252,346 | View return |
| 2020 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2019 | Population Media Center Inc. | 990 | President | 40 | $251,183 | $0 | View return |
| 2019 | The Population Institute Inc | 990 | Chair | 10 | $0 | $251,183 | View return |
| 2019 | Seal & Serpent Society | 990 | Secretary | 1 | $0 | $0 | View return |
| 2019 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2018 | Population Media Center Inc. | 990 | President | 40 | $234,234 | $0 | View return |
| 2018 | The Population Institute Inc | 990 | Chair & CEO | 10 | $0 | $234,234 | View return |
| 2018 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2018 | Seal & Serpent Society | 990 | Secretary | 1 | $0 | $0 | View return |
| 2017 | Population Media Center Inc. | 990 | President | 40 | $230,618 | $0 | View return |
| 2017 | The Population Institute Inc | 990 | Chair & CEO | 10 | $0 | $230,618 | View return |
| 2017 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2017 | Seal & Serpent Society | 990 | Secretary | 1 | $0 | $0 | View return |
| 2016 | Population Media Center Inc. | 990 | President | 40 | $204,313 | $0 | View return |
| 2016 | The Population Institute Inc | 990 | Chair & CEO | 10 | $0 | $204,313 | View return |
| 2016 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2016 | Music for the Earth Inc. | 990 | Trustee | 8 | $0 | $0 | View return |
| 2016 | Seal & Serpent Society | 990 | Secretary | 1 | $0 | $0 | View return |
| 2015 | Population Media Center Inc. | 990 | President | 40 | $200,000 | $0 | View return |
| 2015 | The Population Institute Inc | 990 | Chair & CEO | 10 | $0 | $200,000 | View return |
| 2015 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2015 | Seal & Serpent Society | 990 | Secretary | 1 | $0 | $0 | View return |
| 2014 | Population Media Center Inc. | 990 | President | 40 | $198,333 | $0 | View return |
| 2014 | The Population Institute Inc | 990 | Chair & CEO | 10 | $0 | $198,333 | View return |
| 2014 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2013 | Population Media Center Inc. | 990 | President | 40 | $160,000 | $0 | View return |
| 2013 | Music for the Earth Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Population Institute Inc | 990 | Chairman & President | 10 | $0 | $0 | View return |
| 2013 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2012 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2011 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2010 | The John T & Theresa D Cederholm Private Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |