| 2024 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Mass General Brigham Incorporated | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Mass General Brigham Incorporated & | 990 | See Schedule O - O & T Titles | 1 | $0 | $0 | View return |
| 2022 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Mass General Brigham Incorporated & | 990 | See Schedule O - O & T Titles | 1 | $0 | $0 | View return |
| 2022 | Mass General Brigham Incorporated | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Mass General Brigham Incorporated & | 990 | See Schedule O - O & T Titles | 1 | $0 | $0 | View return |
| 2020 | Mass General Brigham Incorporated | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Mass General Brigham Incorporated | 990 | Director 07/28/20 | 1 | $0 | $0 | View return |
| 2019 | Mass General Brigham Incorporated & | 990 | See Schedule O - O & T Titles | 1 | $0 | $0 | View return |
| 2018 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Massachusetts Eye & Ear Infirmary | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Foundation of the Massachusetts Eye and Ear | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Massachusetts Eye & Ear Infirmary | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Foundation of the Massachusetts Eye and Ear | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Foundation of the Massachusetts Eye and Ear | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Massachusetts Eye & Ear Infirmary | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Massachusetts Eye & Ear Infirmary | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Foundation of the Massachusetts Eye and Ear | 990 | Director | 2 | $0 | $0 | View return |
| 2013 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | Foundation of the Massachusetts Eye and Ear | 990 | Director (Effective 3/4/14) | 2 | $0 | $0 | View return |
| 2013 | Massachusetts Eye & Ear Infirmary | 990 | Director (Effective 3/4/14) | 2 | - | - | View return |
| 2012 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2011 | The Robert and Michelle Cooke Atchinson | 990PF | Trustee | 1 | $0 | $0 | View return |