| 2024 | Wicomico Day School Inc | 990 | President/Chairman | 8 | $201,581 | $0 | View return |
| 2024 | East Arm Rowing Club Inc | 990EZ | Board Member | 2 | $0 | $0 | View return |
| 2023 | University of Chicago | 990 | Former President | 0 | $4,718,866 | $0 | View return |
| 2023 | Galloway Ridge Inc | 990 | CEO/Executive Director | 50 | $289,343 | $0 | View return |
| 2023 | Wicomico Day School Inc | 990 | President/Chairman | 8 | $117,500 | $0 | View return |
| 2023 | East Arm Rowing Club Inc | 990EZ | Board Member | 2 | $0 | $0 | View return |
| 2022 | Galloway Ridge Inc | 990 | CEO/Executive Director | 50 | $276,354 | $0 | View return |
| 2022 | Marine Biological Laboratory | 990 | Former Chair Of The Board Of Trustees | 1 | $0 | $3,314,058 | View return |
| 2022 | Coastal Community Foundation | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2022 | Friends of Ihes Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2022 | Negro League Baseball Legends Hall of Fame | 990 | President | 20 | $0 | $0 | View return |
| 2022 | East Arm Rowing Club Inc | 990EZ | Board Member | 5 | $0 | - | View return |
| 2021 | Galloway Ridge Inc | 990 | CEO/Executive Director | 50 | $260,948 | $0 | View return |
| 2021 | Marine Biological Laboratory | 990 | Chair Of The Board Of Trustees | 1 | $0 | $3,405,394 | View return |
| 2021 | Friends of Ihes Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | Negro League Baseball Legends Hall of Fame | 990 | President | 20 | $0 | $0 | View return |
| 2021 | Little River Improvement Club Inc | 990EZ | Trustee | 1 | $0 | - | View return |
| 2021 | The Federation of Independent Illinois | 990 | Member | 1 | $0 | $0 | View return |
| 2021 | Coastal Community Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | East Arm Rowing Club Inc | 990EZ | Board Member | 5 | $0 | - | View return |
| 2021 | The Chicago Council on Global Affairs | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | Galloway Ridge Inc | 990 | CEO/Executive Director | 50 | $260,948 | $0 | View return |
| 2020 | Marine Biological Laboratory | 990 | Chair Of The Board Of Trustees | 1 | $0 | $1,831,643 | View return |
| 2020 | Little River Improvement Club Inc | 990EZ | Trustee | 1 | $0 | - | View return |
| 2020 | East Arm Rowing Club Inc | 990EZ | Board Member | 5 | $0 | - | View return |
| 2020 | Negro League Baseball Legends Hall of Fame | 990 | President | 20 | $0 | $0 | View return |
| 2020 | University Athletic Association Inc | 990 | Presidents Council Member | 0.39 | $0 | $0 | View return |
| 2020 | The Federation of Independent Illinois | 990 | Member | 1 | $0 | $0 | View return |
| 2019 | Galloway Ridge Inc | 990 | CEO Executive Director | 50 | $222,970 | $0 | View return |
| 2019 | Marine Biological Laboratory | 990 | Chair Of The Board Of Trustees | 1 | $0 | $1,677,073 | View return |
| 2019 | East Arm Rowing Club Inc | 990EZ | Board Member | 5 | $0 | - | View return |
| 2019 | Little River Improvement Club Inc | 990EZ | Trustee | 1 | $0 | - | View return |
| 2019 | The Federation of Independent Illinois | 990 | Member | 1 | $0 | $0 | View return |
| 2019 | Negro League Baseball Legends Hall of Fame | 990 | President | 20 | $0 | $0 | View return |
| 2018 | University of Chicago | 990 | President | 40 | $5,777,302 | $0 | View return |
| 2018 | University of Chicago Medical Center | 990 | Trustee Ex Officio | 40 | $0 | $5,777,302 | View return |
| 2018 | Marine Biological Laboratory | 990 | Chair Of The Board Of Trustees | 1 | $0 | $5,777,302 | View return |
| 2018 | Little River Improvement Club Inc | 990EZ | Trustee | 1 | $0 | - | View return |
| 2018 | Negro League Baseball Legends Hall of Fame | 990EZ | President | 20 | $0 | $0 | View return |
| 2018 | East Arm Rowing Club Inc | 990EZ | Board Member | 1 | $0 | - | View return |
| 2018 | The Federation of Independent Illinois | 990 | Member | 1 | $0 | $0 | View return |
| 2018 | The Chicago Council on Global Affairs | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | East Arm Rowing Club Inc | 990EZ | Board Member | 1 | $0 | - | View return |
| 2017 | University of Chicago | 990 | President | 40 | $1,370,965 | $0 | View return |
| 2017 | Galloway Ridge Inc | 990 | Executive Director | 50 | $184,053 | $0 | View return |
| 2017 | University of Chicago Medical Center | 990 | Trustee Ex Officio | 16 | $0 | $1,370,965 | View return |
| 2017 | Marine Biological Laboratory | 990 | Chair Of The Board | 1 | $0 | $1,370,965 | View return |
| 2017 | The Lynn and Robert Zimmer Family | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Lynn and Robert Zimmer Family | 990PF | President | 1 | $0 | $0 | View return |
| 2017 | The Federation of Independent Illinois | 990 | Member | 1 | $0 | $0 | View return |
| 2017 | Negro League Baseball Legends Hall of Fame | 990EZ | President | 20 | $0 | $0 | View return |
| 2017 | The Chicago Council on Global Affairs | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | University of Chicago | 990 | President | 40 | $1,477,328 | $0 | View return |
| 2016 | Galloway Ridge Inc | 990 | Executive Director | 50 | $177,025 | $0 | View return |
| 2016 | University of Chicago Medical Center | 990 | Trustee (Ex Officio) Uc Pres | 7 | $0 | $1,477,328 | View return |
| 2016 | Marine Biological Laboratory | 990 | Chair Of The Board | 1 | $0 | $1,477,328 | View return |
| 2016 | The Lynn and Robert Zimmer Family | 990PF | President | 1 | $0 | $0 | View return |
| 2016 | The Federation of Independent Illinois | 990 | Member | 1 | $0 | $0 | View return |
| 2016 | The Lynn and Robert Zimmer Family | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | University of Chicago | 990 | President | 40 | $2,722,029 | $0 | View return |
| 2015 | Galloway Ridge Inc | 990 | Executive Director | 50 | $159,874 | $0 | View return |
| 2015 | Marine Biological Laboratory | 990 | Chair Of The Board | 1 | $0 | $2,722,029 | View return |
| 2015 | University of Chicago Medical Center | 990 | Trustee (Ex Officio) Uc Pres | 7 | $0 | $2,722,029 | View return |
| 2015 | The Lynn and Robert Zimmer Family | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Lynn and Robert Zimmer Family | 990PF | President | 1 | $0 | $0 | View return |
| 2015 | The Federation of Independent Illinois | 990 | Member | 1 | $0 | $0 | View return |
| 2014 | University of Chicago | 990 | President | 40 | $1,913,283 | $0 | View return |
| 2014 | Galloway Ridge Inc | 990 | Assoc./Executive Director | 50 | $121,900 | $0 | View return |
| 2014 | International Union of Operating Engineers Local 94 | 990 | Fin Sec | 1 | $2,580 | $0 | View return |
| 2014 | Marine Biological Laboratory | 990 | Chair Of The Board | 1 | $0 | $1,913,284 | View return |
| 2014 | University of Chicago Medical Center | 990 | Trustee (Ex Officio), Uc Pres | 7 | $0 | $1,913,283 | View return |
| 2014 | The Lynn and Robert Zimmer Family | 990PF | President | 1 | $0 | $0 | View return |
| 2014 | The Lynn and Robert Zimmer Family | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | Friends of the Cultural Center Inc | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | University of Chicago | 990 | President | 40 | $1,206,827 | $0 | View return |
| 2013 | Galloway Ridge Inc | 990 | CFO | 50 | $118,110 | $0 | View return |
| 2013 | International Union of Operating Engineers Local 94 | 990 | Fin'L Sec | 1 | $3,933 | $0 | View return |
| 2013 | University of Chicago Medical Center | 990 | Trustee (Ex Officio), Uc Pres | 7 | $0 | $1,206,827 | View return |
| 2013 | Fermi Research Alliance LLC | 990 | Chair | 2 | $0 | $1,206,827 | View return |
| 2013 | The Lynn and Robert Zimmer Family | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Lynn and Robert Zimmer Family | 990PF | President | 1 | $0 | $0 | View return |
| 2013 | Friends of the Cultural Center Inc | 990 | Trustee | 1 | $0 | $0 | View return |