| 2024 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $5,969 | $0 | View return |
| 2024 | Santa Cruz Island Foundation | 990PF | Secretary (Former) | 1 | $0 | $0 | View return |
| 2024 | John S Kiewit Memorial Foundation | 990PF | President | 1 | $0 | - | View return |
| 2023 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $5,918 | $0 | View return |
| 2023 | John S Kiewit Memorial Foundation | 990PF | President | 1 | $0 | - | View return |
| 2023 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2022 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $6,478 | $0 | View return |
| 2022 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2022 | John S Kiewit Memorial Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $5,626 | $0 | View return |
| 2021 | John S Kiewit Memorial Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2020 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $5,502 | $0 | View return |
| 2020 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2020 | John S Kiewit Memorial Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2019 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $5,144 | $0 | View return |
| 2019 | John S Kiewit Memorial Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2018 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $5,170 | $0 | View return |
| 2018 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $5,170 | $0 | View return |
| 2018 | John S Kiewit Memorial Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2017 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $4,934 | $0 | View return |
| 2017 | John S Kiewit Memorial Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2016 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $5,053 | $0 | View return |
| 2016 | John S Kiewit Memorial Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2016 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2015 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $5,219 | $0 | View return |
| 2015 | John S Kiewit Memorial Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2015 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2014 | Trust UW Harold Parma FBO Parma Park | 990PF | Trustee | 1 | $4,976 | $0 | View return |
| 2014 | John S Kiewit Memorial Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2014 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2013 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2011 | Santa Cruz Island Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |