| 2024 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2024 | The Seaver Institute | 990PF | Director | 2 | $0 | - | View return |
| 2023 | The Seaver Institute | 990PF | Secretary | 0 | $0 | - | View return |
| 2023 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2023 | Diocesan Investment Trust of the Diocese of Los Angeles | 990 | Treasurer/Trustee | 1 | $0 | $0 | View return |
| 2023 | Achievement Rewards for College Scientists Foundation Inc | 990 | Board Member | 5 | $0 | $0 | View return |
| 2023 | The Seaver Institute | 990PF | Director | 2 | $0 | - | View return |
| 2023 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | VP Univ Relatio | 1 | $0 | $0 | View return |
| 2022 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2022 | The Seaver Institute | 990PF | Secretary | 0 | $0 | - | View return |
| 2022 | Achievement Rewards for College Scientists Foundation Inc | 990 | Board Member | 5 | $0 | $0 | View return |
| 2022 | The Seaver Institute | 990PF | Secretary | 0 | $0 | - | View return |
| 2022 | Diocesan Investment Trust of the Diocese of Los Angeles | 990 | Treasurer/Trustee | 1 | $0 | $0 | View return |
| 2022 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | VP Univ Relatio | 1 | $0 | $0 | View return |
| 2021 | The Seaver Institute | 990PF | Secretary | 0 | $0 | - | View return |
| 2021 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Achievement Rewards for College Scientists Foundation Inc | 990 | Board Member | 5 | $0 | $0 | View return |
| 2021 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | VP Development | 5 | $0 | $0 | View return |
| 2020 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Diocesan Investment Trust of the Diocese of Los Angeles | 990 | Treasurer/Trustee | 1 | $0 | $0 | View return |
| 2020 | Achievement Rewards for College Scientists Foundation Inc | 990 | Board Member | 5 | $0 | $0 | View return |
| 2020 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | VP Development | 5 | $0 | $0 | View return |
| 2019 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | VP Development | 5 | $0 | $0 | View return |
| 2019 | Diocesan Investment Trust of the Diocese of Los Angeles | 990 | Treasurer/Trustee | 1 | $0 | $0 | View return |
| 2019 | Achievement Rewards for College Scientists Foundation Inc | 990 | Board Member | 5 | $0 | $0 | View return |
| 2018 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | VP Development | 5 | $0 | $0 | View return |
| 2018 | Diocesan Investment Trust of the Diocese of Los Angeles | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Scripps College | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | Development | 5 | $0 | $0 | View return |
| 2017 | Achievement Rewards for College Scientists Foundation Inc | 990 | Board Member | 5 | $0 | $0 | View return |
| 2017 | Diocesan Investment Trust of the Diocese of Los Angeles | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Scripps College | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Scripps College | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | National Recreation Foundation Inc C/O Sophia B Twichell | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | Diocesan Investment Trust of the Diocese of Los Angeles | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Achievement Rewards for College Scientists Foundation Inc | 990 | President | 5 | $0 | $0 | View return |
| 2015 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Diocesan Investment Trust of the Diocese of Los Angeles | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Scripps College | 990 | Trustee | 2 | $0 | $0 | View return |
| 2015 | Achievement Rewards for College Scientists Foundation Inc | 990 | President | 5 | $0 | $0 | View return |
| 2014 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Diocesan Investment Trust of the Diocese of Los Angeles | 990 | Trustee (Term Began 2/2015) | 1 | $0 | $0 | View return |
| 2014 | Achievement Rewards for College Scientists Foundation Inc | 990 | President-Elect | 5 | $0 | $0 | View return |
| 2014 | Scripps College | 990 | Trustee | 2 | $0 | $0 | View return |
| 2013 | Achievement Rewards for College Scientists Foundation Inc La Chapter | 990 | VP Membership | 2 | $0 | $0 | View return |
| 2013 | Scripps College | 990 | Trustee | 2 | $0 | $0 | View return |
| 2013 | Achievement Rewards for College Scientists Foundation Inc | 990 | VP Finance | 5 | $0 | $0 | View return |