| 2024 | Boston Celtics Shamrock Foundation Inc. | 990 | Director & CEO | 5 | $0 | $11,087,104 | View return |
| 2023 | Boston Celtics Shamrock Foundation Inc. | 990 | Director & CEO | 5 | $0 | $7,598,899 | View return |
| 2023 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 2 | $0 | - | View return |
| 2022 | Boston Celtics Shamrock Foundation Inc. | 990 | Director & CEO | 5 | $0 | $8,101,098 | View return |
| 2022 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 2 | $0 | - | View return |
| 2021 | Boston Celtics Shamrock Foundation Inc. | 990 | Director & CEO | 5 | $0 | $8,074,573 | View return |
| 2021 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 2 | $0 | - | View return |
| 2021 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 2 | $0 | - | View return |
| 2020 | Boston Celtics Shamrock Foundation Inc. | 990 | Director & CEO | 5 | $0 | $8,071,228 | View return |
| 2020 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2019 | Boston Celtics Shamrock Foundation Inc. | 990 | Director & CEO | 5 | $0 | $8,073,465 | View return |
| 2019 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2019 | Mass General Brigham Incorporated | 990 | Director Until 05/21/20 | 1 | $0 | $0 | View return |
| 2019 | Mass General Brigham Incorporated & | 990 | See Schedule O - O & T Titles | 1 | $0 | $0 | View return |
| 2018 | Boston Celtics Shamrock Foundation Inc. | 990 | Director & CEO | 5 | $0 | $8,338,377 | View return |
| 2018 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2017 | Boston Celtics Shamrock Foundation Inc. | 990 | Director & CEO | 5 | $0 | $3,979,865 | View return |
| 2017 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Mass General Brigham Incorporated | 990 | Director | 4 | $0 | $0 | View return |
| 2017 | Mass General Brigham Incorporated | 990 | Director (As Of 03/27/2018) | 1 | $0 | $0 | View return |
| 2017 | Massachusetts Eye & Ear Infirmary | 990 | Chair | 3 | $0 | $0 | View return |
| 2017 | Foundation of the Massachusetts Eye and Ear Infirmary Inc | 990 | Chair | 3 | $0 | $0 | View return |
| 2016 | The3Pointfoundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Massachusetts Eye & Ear Infirmary | 990 | Chair | 3 | $0 | $0 | View return |
| 2016 | Foundation of the Massachusetts Eye and Ear Infirmary Inc | 990 | Chair | 3 | $0 | $0 | View return |
| 2016 | Mass General Brigham Incorporated | 990 | Director | 4 | $0 | $0 | View return |
| 2015 | Foundation of the Massachusetts Eye and Ear Infirmary Inc | 990 | Chair | 3 | $0 | $0 | View return |
| 2015 | Mass General Brigham Incorporated | 990 | Director | 4 | $0 | $0 | View return |
| 2015 | Massachusetts Eye & Ear Infirmary | 990 | Chair | 3 | $0 | $0 | View return |
| 2014 | Mass General Brigham Incorporated | 990 | Director | 4 | $0 | $0 | View return |
| 2014 | Massachusetts Eye & Ear Infirmary | 990 | Chair | 3 | $0 | $0 | View return |
| 2014 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | Foundation of the Massachusetts Eye and Ear Infirmary Inc | 990 | Chair | 3 | $0 | $0 | View return |
| 2013 | Foundation of the Massachusetts Eye and Ear Infirmary Inc | 990 | Chair | 3 | $0 | $0 | View return |
| 2013 | Mass General Brigham Incorporated | 990 | Director | 4 | - | - | View return |
| 2013 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | Massachusetts Eye & Ear Infirmary | 990 | Chair | 3 | - | - | View return |
| 2012 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2011 | Grousbeck Trust Dated April 20 2011 | 990PF | Trustee | 1 | $0 | $0 | View return |