| 2024 | The Anna and John J Sie Foundation | 990PF | Trustee | 25 | $12,000 | $11,529 | View return |
| 2024 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $0 | View return |
| 2024 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | The Anna and John J Sie Foundation | 990PF | Trustee | 25 | $12,000 | $16,876 | View return |
| 2023 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $12,000 | View return |
| 2023 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | The Anna and John J Sie Foundation | 990PF | Trustee | 24 | $12,000 | $34,588 | View return |
| 2022 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $12,000 | View return |
| 2022 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $0 | View return |
| 2022 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | The Anna and John J Sie Foundation | 990PF | Trustee | 24 | $12,000 | $18,505 | View return |
| 2021 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $12,000 | View return |
| 2021 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Anna and John J Sie Foundation | 990PF | Trustee | 24 | $12,000 | $33,159 | View return |
| 2020 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $12,000 | View return |
| 2020 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | The Anna and John J Sie Foundation | 990PF | Trustee | 24 | $12,000 | $28,249 | View return |
| 2019 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $6,342 | View return |
| 2019 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Anna and John J Sie Foundation | 990PF | Trustee | 25 | $12,000 | $16,284 | View return |
| 2018 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $6,572 | View return |
| 2018 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $6,748 | View return |
| 2017 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $6,755 | View return |
| 2016 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Anna and John J Sie Foundation | 990PF | Trustee | 29.3 | $12,462 | $30,161 | View return |
| 2015 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $6,748 | View return |
| 2015 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Anna and John J Sie Foundation | 990PF | Trustee | 25.3 | $12,000 | $26,091 | View return |
| 2014 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $12,000 | View return |
| 2014 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Anna and John J Sie Foundation | 990PF | Trustee | 25.6 | $12,000 | $25,997 | View return |
| 2013 | Global Down Syndrome Foundation | 990 | Chair | 1.5 | $0 | $5,765 | View return |
| 2013 | Denver Art Museum Inc. | 990 | Trustee | 1 | $0 | $0 | View return |