| 2024 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 7 | $0 | $0 | View return |
| 2024 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2023 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2023 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 7 | $0 | $0 | View return |
| 2022 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2022 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 7 | $0 | $0 | View return |
| 2021 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2021 | United States Biathlon Foundation | 990EZ | Trustee | 1 | $0 | $0 | View return |
| 2020 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2020 | United States Biathlon Foundation | 990EZ | Trustee | 1 | $0 | $0 | View return |
| 2019 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2019 | United States Biathlon Foundation | 990EZ | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2018 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Governor Dummer Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2018 | United States Biathlon Foundation | 990EZ | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2017 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Governor Dummer Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2016 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2016 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | Governor Dummer Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2015 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2015 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | Governor Dummer Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2014 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2014 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | Governor Dummer Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2013 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2013 | The Peter Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 0.75 | $0 | $0 | View return |
| 2013 | Governor Dummer Academy | 990 | Trustee | 5 | $0 | $0 | View return |
| 2012 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2012 | The Peter Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 0.75 | $0 | $0 | View return |
| 2012 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2011 | The Peter Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 0.75 | $0 | $0 | View return |
| 2010 | The Bill and Joan Alfond Foundation | 990PF | President, Director | 12.5 | $0 | $0 | View return |
| 2010 | Harold Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2010 | The Peter Alfond Foundation C/O Dexter Enterprises Inc | 990PF | Trustee | 0.75 | $0 | $0 | View return |