| 2025 | Jack & Sandra Guthman Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2024 | Chiarts Foundation | 990 | Director | 4 | $0 | $0 | View return |
| 2024 | Jack & Sandra Guthman Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2024 | Polk Family Charitable Fund | 990PF | Director | 0 | $0 | $0 | View return |
| 2024 | Music and Dance Theater Chicago Inc. | 990 | Past Chairman | 1 | $0 | $0 | View return |
| 2024 | Chiarts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Jack & Sandra Guthman Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2023 | Chiarts Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Navy Pier Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Rush University Medical Center | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | Polk Family Charitable Fund | 990PF | Director | 0 | $0 | $0 | View return |
| 2023 | Rush System for Health | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | Navy Pier Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Jack & Sandra Guthman Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2022 | Polk Family Charitable Fund | 990PF | Director | 0 | $0 | $0 | View return |
| 2021 | Navy Pier Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Jack & Sandra Guthman Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2021 | Chiarts Foundation | 990 | Director | 3 | $0 | $0 | View return |
| 2021 | Polk Family Charitable Fund | 990PF | Director | 0 | $0 | $0 | View return |
| 2020 | Jack & Sandra Guthman Foundation | 990PF | Secretary | 2 | $0 | $0 | View return |
| 2020 | Navy Pier Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Chiarts Foundation | 990EZ | Director | 1 | $0 | $0 | View return |
| 2020 | Window to the World Communications Inc. | 990 | Board Member - Trustee Emeritus | 0.65 | $0 | $0 | View return |
| 2020 | The Chicago High School for the Arts | 990 | Director - Term | 1 | $0 | $0 | View return |
| 2020 | Polk Family Charitable Fund | 990PF | Director | 0 | $0 | $0 | View return |
| 2019 | Navy Pier Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Polk Family Charitable Fund | 990PF | Director | 0 | $0 | $0 | View return |
| 2019 | The Chicago High School for the Arts | 990 | Director | 10 | $0 | $0 | View return |
| 2018 | Navy Pier Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Polk Family Charitable Fund | 990PF | Director | 0 | $0 | $0 | View return |
| 2018 | Rush University Medical Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | Rush System for Health | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Chicago High School for the Arts | 990 | Director | 10 | $0 | $0 | View return |
| 2017 | Navy Pier Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Rush System for Health | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Chicago High School for the Arts | 990 | Director | 10 | $0 | $0 | View return |
| 2017 | Rush University Medical Center | 990 | Trustee | 2 | $0 | $0 | View return |
| 2017 | Polk Family Charitable Fund | 990PF | Director | 0 | $0 | $0 | View return |
| 2016 | Rush University Medical Center | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | Rush System for Health | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | The Chicago High School for the Arts | 990 | Director | 10 | $0 | $0 | View return |
| 2015 | Rush University Medical Center | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Chicago High School for the Arts | 990 | Director | 10 | $0 | $0 | View return |
| 2014 | The Chicago High School for the Arts | 990 | Director | 10 | $0 | $0 | View return |
| 2014 | Rush University Medical Center | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Chicago High School for the Arts | 990 | Director | 10 | $0 | $0 | View return |
| 2013 | Rush University Medical Center | 990 | Trustee | 1 | $0 | $0 | View return |