| 2020 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 4 | $13,200 | $0 | View return |
| 2020 | The Souchek Foundation Inc | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2019 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 0 | $13,200 | $0 | View return |
| 2019 | The Souchek Foundation Inc | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2018 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 0 | $13,200 | $0 | View return |
| 2018 | The Souchek Foundation Inc | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2017 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 0 | $11,654 | $0 | View return |
| 2017 | The Souchek Foundation Inc | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2016 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 0 | $10,109 | $0 | View return |
| 2016 | The Souchek Foundation Inc | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2015 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 2 | $10,109 | $0 | View return |
| 2015 | The Souchek Foundation Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 1 | $10,109 | $0 | View return |
| 2014 | The Souchek Foundation Inc | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 20 | $10,109 | $2,493 | View return |
| 2013 | The Souchek Foundation Inc | 990PF | Trustee | 10 | $0 | $0 | View return |
| 2012 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 20 | $10,108 | $2,278 | View return |
| 2012 | The Souchek Foundation Inc | 990PF | Trustee | 10 | $0 | $0 | View return |
| 2011 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 20 | $10,109 | $2,030 | View return |
| 2011 | The Souchek Foundation Inc | 990PF | Trustee | 10 | $0 | $0 | View return |
| 2010 | William C & Vivian M Eiff Foundation Inc. | 990PF | Trustee | 20 | $10,108 | $1,831 | View return |
| 2010 | The Souchek Foundation Inc | 990PF | Trustee | 120 | $0 | $0 | View return |