| 2025 | The Karp Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2024 | The Karp Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2024 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | The Karp Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2023 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | The Karp Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2021 | Bike Walk Montana Inc. | 990EZ | Director | 0.5 | $0 | - | View return |
| 2021 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Public Safety Technology Alliance Inc | 990EZ | VP, Treas & Sec | 10 | $0 | - | View return |
| 2021 | The Karp Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2020 | Bike Walk Montana Inc. | 990EZ | Director | 0.5 | $0 | - | View return |
| 2020 | Public Safety Technology Alliance Inc | 990EZ | VP, Treas & Sec | 10 | $0 | - | View return |
| 2020 | The Karp Family Foundation | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2020 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | The Karp Family Foundation | 990PF | Trustee | 5 | $0 | $0 | View return |
| 2019 | Bike Walk Montana Inc. | 990EZ | Director | 0.5 | $0 | - | View return |
| 2019 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Public Safety Technology Alliance Inc | 990 | VP/Sec/Treas | 15 | $0 | $0 | View return |
| 2018 | Tourbillon Capital Foundation Inc | 990PF | President | 0 | $0 | $0 | View return |
| 2018 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Bike Walk Montana Inc. | 990EZ | Vice Chair | 0.5 | $0 | - | View return |
| 2018 | The Karp Family Foundation | 990PF | Trustee | 5 | $0 | $0 | View return |
| 2018 | Public Safety Technology Alliance Inc | 990 | VP/Sec/Tres | 10 | $0 | $0 | View return |
| 2018 | The Loomis Institute D/B/A the Loomis Chaffee School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | Bike Walk Montana Inc. | 990EZ | Director | 0.5 | $0 | - | View return |
| 2017 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | - | View return |
| 2017 | The Karp Family Foundation | 990PF | Trustee | 5 | $0 | $0 | View return |
| 2017 | The Loomis Institute D/B/A the Loomis Chaffee School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | The Karp Family Foundation | 990PF | Trustee | 5 | $0 | $0 | View return |
| 2016 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | - | View return |
| 2016 | The Loomis Institute D/B/A the Loomis Chaffee School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | - | View return |
| 2015 | The Loomis Institute D/B/A the Loomis Chaffee School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | - | View return |
| 2014 | The Loomis Institute D/B/A the Loomis Chaffee School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | - | View return |
| 2013 | The Loomis Institute D/B/A the Loomis Chaffee School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2012 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | - | View return |
| 2012 | The Karp Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2011 | Sca Charitable Foundation Inc. | 990PF | Director | 1 | $0 | - | View return |
| 2011 | The Karp Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2010 | The Karp Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |