| 2025 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $88,987 | $0 | View return |
| 2025 | Peter Andrew Sunseri Scholarship Fund Co Frost Bank Trustee | 990PF | Trustee | 0 | $3,656 | - | View return |
| 2024 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $83,506 | $0 | View return |
| 2024 | Southwest Research Institute Voluntary Employees' Beneficiary Association | 990 | Instl. Trustee | 1 | $18,372 | $0 | View return |
| 2024 | Peter Andrew Sunseri Scholarship Fund Co Frost Bank Trustee | 990PF | Trustee | 0 | $3,454 | - | View return |
| 2023 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $75,360 | $0 | View return |
| 2023 | Peter Andrew Sunseri Scholarship Fund Co Frost Bank Trustee | 990PF | Trustee | 0 | $3,132 | - | View return |
| 2022 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $75,635 | $0 | View return |
| 2022 | Peter Andrew Sunseri Scholarship Fund Co Frost Bank Trustee | 990PF | Trustee | 0 | $3,237 | - | View return |
| 2021 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $90,830 | $0 | View return |
| 2021 | Peter Andrew Sunseri Scholarship Fund Co Frost Bank Trustee | 990PF | Trustee | 0 | $3,296 | - | View return |
| 2020 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $92,300 | $0 | View return |
| 2020 | Peter Andrew Sunseri Scholarship Fund Co Frost Bank Trustee | 990PF | Trustee | 0 | $2,280 | - | View return |
| 2019 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $80,298 | $0 | View return |
| 2019 | Peter Andrew Sunseri Scholarship Fund Co Frost Bank Trustee | 990PF | Trustee | 0 | $2,074 | - | View return |
| 2018 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $78,378 | $0 | View return |
| 2018 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $78,378 | $0 | View return |
| 2018 | Peter Andrew Sunseri Scholarship Fund Co Frost Bank Trustee | 990PF | Trustee | 0 | $2,101 | - | View return |
| 2017 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $71,811 | $0 | View return |
| 2016 | Ernest a Mantzel Foundation C/O Frost National Bank | 990PF | Trustee | 0 | $64,915 | $0 | View return |
| 2016 | Feddersen Trust Co Frost National Bank | 990PF | Trustee | 1 | $1,222 | $0 | View return |
| 2016 | Ike & Fannie Sablosky Foundation C/O Frost Bank-Acct # W00768400 | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2015 | Feddersen Trust Co Frost National Bank | 990PF | Trustee | 1 | $1,213 | $0 | View return |
| 2015 | Ike & Fannie Sablosky Foundation C/O Frost Bank-Acct # W00768400 | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2014 | Kittie Nelson Ferguson Foundation C/O Frost Bank | 990PF | Trustee | 2 | $15,805 | - | View return |
| 2014 | Aaron Forman Trust | 990PF | Trustee | 0 | $8,506 | $0 | View return |
| 2014 | Feddersen Trust Co Frost National Bank | 990PF | Trustee | 1 | $1,205 | $0 | View return |
| 2014 | Ike & Fannie Sablosky Foundation C/O Frost Bank-Acct # W00768400 | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2014 | Charles Meyer Foundation | 990PF | Trustee | 5 | $0 | $0 | View return |
| 2013 | Kittie Nelson Ferguson Foundation C/O Frost Bank | 990PF | Trustee | 2 | $14,830 | - | View return |
| 2013 | Southwest Research Institute Voluntary Employees' Beneficiary Association | 990 | Institutional Trustee | 1 | $10,966 | $0 | View return |
| 2013 | Aaron Forman Trust | 990PF | Trustee | 5 | $8,680 | $0 | View return |
| 2013 | Feddersen Trust Co Frost National Bank | 990PF | Trustee | 1 | $2,894 | $0 | View return |
| 2013 | Ike & Fannie Sablosky Foundation C/O Frost Bank-Acct # W00768400 | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2013 | Charles Meyer Foundation | 990PF | Trustee | 5 | $0 | $0 | View return |
| 2012 | Kittie Nelson Ferguson Foundation C/O Frost Bank | 990PF | Trustee | 2 | $11,352 | $0 | View return |
| 2012 | B C & Addie Brookshire Kleberg County Charitable Foundation | 990PF | Trustee | 1 | $8,653 | $0 | View return |
| 2012 | Aaron Forman Trust | 990PF | Trustee | 5 | $6,618 | $0 | View return |
| 2012 | Feddersen Trust Co Frost National Bank | 990PF | Trustee | 0 | $749 | - | View return |
| 2012 | Charles Meyer Foundation | 990PF | Trustee | 5 | $0 | $0 | View return |
| 2012 | Joseph Glasco Charitable Foundation | 990PF | Trustee | 40 | $0 | $0 | View return |
| 2012 | Ike & Fannie Sablosky Foundation C/O Frost Bank-Acct # W00768400 | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2012 | Eugene H Reinagel Charitable Trust | 990PF | Trustee | 40 | $0 | $0 | View return |
| 2011 | Abe&Annie Seibel Foundation G08110 C/O Frost Bank | 990PF | Trustee | 40 | $585,463 | $0 | View return |
| 2011 | Leroy and Merle Weir Trust C/O Frost Bank Middle Office | 990PF | Trustee & Asset Manager | 0.5 | $87,466 | $0 | View return |
| 2011 | B C & Addie Brookshire Kleberg County Charitable Foundation | 990PF | Trustee | 1 | $8,350 | $0 | View return |
| 2011 | Aaron Forman Trust | 990PF | Trustee | 10 | $5,243 | $0 | View return |
| 2011 | Feddersen Trust Co Frost National Bank | 990PF | Trustee | 0 | $728 | - | View return |
| 2011 | Ike & Fannie Sablosky Foundation C/O Frost Bank-Acct # W00768400 | 990PF | Trustee | 2 | $0 | $0 | View return |
| 2011 | Eugene H Reinagel Charitable Trust | 990PF | Trustee | 40 | $0 | $0 | View return |
| 2011 | Joseph Glasco Charitable Foundation | 990PF | Trustee | 40 | $0 | $0 | View return |
| 2011 | Charles Meyer Foundation | 990PF | Trustee | 5 | $0 | $0 | View return |
| 2010 | Leroy and Merle Weir Trust C/O Frost Bank Middle Office | 990PF | Trustee & Asset Manager | 0.5 | $146,350 | $0 | View return |
| 2010 | Harry & Maxine Rogers Charitable Trust | 990PF | Trustee | 5 | $16,330 | $0 | View return |
| 2010 | J Kelly Cain and Nell Loving Cain Endowment Trust | 990PF | Trustee | 20 | $14,911 | $0 | View return |
| 2010 | Ferguson Rugeley Foundation F5130000 | 990PF | Trustee | 5 | $9,766 | - | View return |
| 2010 | B C & Addie Brookshire Kleberg County Charitable Foundation | 990PF | Trustee | 1 | $8,315 | $0 | View return |
| 2010 | Aaron Forman Trust | 990PF | Trustee | 10 | $5,431 | $0 | View return |
| 2010 | Hazel Vaughn Leigh Trust C/O Overton Bank & Trust | 990PF | Trustee | 0 | $4,984 | - | View return |
| 2010 | Florence Kerr Educational Trust Frost Bank Trustee | 990PF | Trustee | 5 | $3,717 | $0 | View return |
| 2010 | Feddersen Trust Co Frost National Bank | 990PF | Trustee | 0 | $855 | - | View return |
| 2010 | Joseph Glasco Charitable Foundation | 990PF | Trustee | 40 | $0 | $0 | View return |
| 2010 | Eugene H Reinagel Charitable Trust | 990PF | Trustee | 40 | $0 | $0 | View return |
| 2010 | Charles Meyer Foundation | 990PF | Trustee | 5 | $0 | $0 | View return |
| 2009 | Ferguson Rugeley Foundation F5130000 | 990PF | Trustee | 4 | $10,389 | - | View return |
| 2009 | Aaron Forman Trust | 990PF | Trustee | 10 | $4,983 | $0 | View return |