| 2024 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $1,000 | $0 | View return |
| 2024 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Ncta Education Foundation Inc. | 990 | Director | 0.6 | $0 | $0 | View return |
| 2024 | Hartz Foundation | 990PF | President | 0.25 | $0 | $0 | View return |
| 2023 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $1,250 | $0 | View return |
| 2023 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2022 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $750 | $0 | View return |
| 2022 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $1,250 | $0 | View return |
| 2021 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2020 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $750 | $0 | View return |
| 2020 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2019 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Ncta Education Foundation Inc. | 990EZ | Director | 0 | $0 | $0 | View return |
| 2019 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2018 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Ncta Education Foundation Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2018 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2017 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2017 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Ncta Education Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2016 | Ncta Education Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $400 | $0 | View return |
| 2015 | Ncta Education Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2014 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $200 | $0 | View return |
| 2014 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2014 | The Walter Kaitz Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | National Cable and Telecommunications Assoc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Ncta Education Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Minnesota Cable Communications Association Inc | 990 | Director | 2 | $300 | $0 | View return |
| 2013 | National Cable and Telecommunications Assoc | 990 | Director | 1 | - | - | View return |
| 2013 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2012 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2011 | Hartz Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2010 | Hartz Foundation | 990PF | President | 0 | $0 | $0 | View return |