| 2024 | The Oscar Cintas Foundation Inc. | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2023 | The Oscar Cintas Foundation Inc. | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2022 | South Texas Institute for the Arts | 990 | Emeritus | 1 | $0 | $0 | View return |
| 2022 | The Oscar Cintas Foundation Inc. | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2021 | Gilman and Gonzalez Falla Arts Foundation | 990PF | Director | 10 | $0 | - | View return |
| 2021 | South Texas Institute for the Arts | 990 | Emeritus | 1 | $0 | $0 | View return |
| 2021 | The Oscar Cintas Foundation Inc. | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2021 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | President & VP | 15 | $0 | - | View return |
| 2020 | South Texas Institute for the Arts | 990 | Emeritus | 1 | $0 | $0 | View return |
| 2020 | The Oscar Cintas Foundation Inc. | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2020 | Gilman and Gonzalez Falla Arts Foundation | 990PF | Director | 10 | $0 | - | View return |
| 2020 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | Vice President | 15 | $0 | - | View return |
| 2019 | Gilman and Gonzalez Falla Arts Foundation | 990PF | Director | 10 | $0 | - | View return |
| 2019 | South Texas Institute for the Arts | 990 | Emeritus | 1 | $0 | $0 | View return |
| 2019 | The Oscar Cintas Foundation Inc. | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2019 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | Vice President | 15 | $0 | - | View return |
| 2018 | South Texas Institute for the Arts | 990 | Emeritus | 1 | $0 | $0 | View return |
| 2018 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | Vice President | 15 | $0 | - | View return |
| 2018 | Gilman and Gonzalez Falla Arts Foundation | 990PF | Director | 10 | $0 | - | View return |
| 2017 | South Texas Institute for the Arts | 990 | Emeritus | 1 | $0 | $0 | View return |
| 2017 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | Vice President | 15 | $0 | - | View return |
| 2017 | Aperture Foundation Inc. | 990 | Ttee | 0 | $0 | $0 | View return |
| 2017 | Gilman and Gonzalez Falla Arts Foundation | 990PF | Director | 10 | $0 | - | View return |
| 2017 | Gilman and Gonzalez Falla Arts Foundation | 990PF | Director | 10 | $0 | - | View return |
| 2016 | Aperture Foundation Inc. | 990 | Ttee | 0 | $0 | $0 | View return |
| 2016 | Gilman and Gonzalez Falla Arts Foundation | 990PF | Director | 10 | $0 | - | View return |
| 2016 | South Texas Institute for the Arts | 990 | Emeritus | 1 | $0 | $0 | View return |
| 2016 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | Vice President | 15 | $0 | - | View return |
| 2015 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | Vice President | 15 | $0 | - | View return |
| 2015 | Aperture Foundation Inc. | 990 | Ttee | 0 | $0 | $0 | View return |
| 2015 | South Texas Institute for the Arts | 990 | Emeritus | 1 | $0 | $0 | View return |
| 2015 | Gilman and Gonzalez Falla Arts Foundation | 990PF | Director | 10 | $0 | $0 | View return |
| 2014 | Gilman & Gonzalez-Falla Theatre Foundation Inc | 990PF | Vice-President | 25 | $27,778 | $0 | View return |
| 2014 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | Vice-President | 15 | $13,015 | $0 | View return |
| 2014 | Aperture Foundation Inc. | 990 | Ttee | 0 | $0 | $0 | View return |
| 2013 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | President | 25 | $55,000 | $0 | View return |
| 2013 | Aperture Foundation Inc. | 990 | Ttee, Chrmn | 0 | $0 | $0 | View return |
| 2012 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | President | 25 | $55,000 | $0 | View return |
| 2010 | Sondra & Charles Gilman Jr Foundation Inc | 990PF | President | 25 | $55,000 | $0 | View return |