International Bancshares Corp SEC filings IBOC

International Bancshares Corp has 947 filings in SEC EDGAR's recent list, going back to May 15, 1995. Its latest annual report, Form ARS, was filed on Apr 20, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.

International Bancshares Corp SEC filings
Form Description Filed Period
4 Insider transaction Oct 23, 2026 Oct 21, 2026
4 Insider transaction May 22, 2026 May 21, 2026
144 Notice of proposed sale May 21, 2026 —
SCHEDULE 13G Ownership over 5% (passive) Apr 29, 2026 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Mar 27, 2026 —
SCHEDULE 13G Ownership over 5% (passive) Feb 13, 2026 —
4 Insider transaction Feb 10, 2026 Feb 6, 2026
144 Notice of proposed sale Nov 21, 2025 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Oct 9, 2025 —
4 Insider transaction Sep 9, 2025 Sep 5, 2025
4 Insider transaction Aug 15, 2025 Aug 14, 2025
144 Notice of proposed sale Aug 14, 2025 —
4 Insider transaction Jun 6, 2025 Jun 5, 2025
4 Insider transaction Dec 19, 2024 Dec 17, 2024
144 Notice of proposed sale Nov 14, 2024 —
4 Insider transaction Nov 14, 2024 Nov 12, 2024
4 Insider transaction Sep 11, 2024 Aug 13, 2024
144 Notice of proposed sale Aug 22, 2024 —
4 Insider transaction May 23, 2024 May 21, 2024
144 Notice of proposed sale May 21, 2024 —
4 Insider transaction Mar 13, 2024 Mar 11, 2024
144 Notice of proposed sale Mar 11, 2024 —
SC 13G/A Amended ownership over 5% (passive) Feb 13, 2024 —
SC 13G/A Amended ownership over 5% (passive) Feb 9, 2024 —
SC 13G/A Amended ownership over 5% (passive) Feb 8, 2024 —
4 Insider transaction Jan 25, 2024 Jan 23, 2024
SC 13G/A Amended ownership over 5% (passive) Jan 24, 2024 —
4 Insider transaction Dec 11, 2023 Dec 7, 2023
144 Notice of proposed sale Dec 7, 2023 —
4 Insider transaction Nov 29, 2023 Nov 27, 2023
144 Notice of proposed sale Nov 21, 2023 —
4 Insider transaction Nov 17, 2023 Nov 15, 2023
144 Notice of proposed sale Nov 14, 2023 —
4 Insider transaction Oct 6, 2023 Oct 4, 2023
4 Insider transaction Aug 9, 2023 Aug 7, 2023
4 Insider transaction Apr 10, 2023 Feb 24, 2022
4 Insider transaction Apr 10, 2023 Jul 14, 2022
4 Insider transaction Apr 10, 2023 Jul 14, 2022
4 Insider transaction Mar 17, 2023 Mar 15, 2023
SC 13G/A Amended ownership over 5% (passive) Feb 10, 2023 —
4 Insider transaction Feb 9, 2023 Feb 7, 2023
SC 13G/A Amended ownership over 5% (passive) Feb 9, 2023 —
SC 13G Ownership over 5% (passive) Feb 6, 2023 —
SC 13G/A Amended ownership over 5% (passive) Jan 26, 2023 —
SC 13G/A Amended ownership over 5% (passive) Jan 20, 2023 —
4 Insider transaction Nov 30, 2022 Nov 28, 2022
4 Insider transaction Nov 10, 2022 Nov 3, 2022
4 Insider transaction Oct 6, 2022 Oct 5, 2022
4 Insider transaction Sep 1, 2022 Aug 30, 2022
4 Insider transaction Aug 15, 2022 Aug 11, 2022
4 Insider transaction Aug 8, 2022 Aug 4, 2022
SC 13G/A Amended ownership over 5% (passive) Jul 8, 2022 —
SC 13G/A Amended ownership over 5% (passive) Jun 9, 2022 —
3 Initial insider ownership Mar 11, 2022 May 20, 2021
3 Initial insider ownership Mar 11, 2022 Feb 23, 2022
4 Insider transaction Mar 8, 2022 Feb 25, 2022
4/A Form 4/a - Feb 22, 2022 Feb 8, 2022
4 Insider transaction Feb 22, 2022 Feb 8, 2022
SC 13G/A Amended ownership over 5% (passive) Feb 10, 2022 —
SC 13G/A Amended ownership over 5% (passive) Feb 8, 2022 —
SC 13G/A Amended ownership over 5% (passive) Feb 1, 2022 —
4 Insider transaction Sep 20, 2021 Sep 16, 2021
4 Insider transaction Sep 13, 2021 Aug 30, 2021
4 Insider transaction Jul 22, 2021 Jul 7, 2021
4 Insider transaction Mar 19, 2021 Mar 4, 2021
4 Insider transaction Mar 12, 2021 Mar 11, 2021
4 Insider transaction Mar 12, 2021 Mar 1, 2021
SC 13G/A Amended ownership over 5% (passive) Mar 10, 2021 —
SC 13G/A Amended ownership over 5% (passive) Feb 12, 2021 —
SC 13G/A Amended ownership over 5% (passive) Feb 10, 2021 —
4/A Form 4/a - Jan 29, 2021 Dec 31, 2020
SC 13G/A Amended ownership over 5% (passive) Jan 29, 2021 —
4 Insider transaction Jan 8, 2021 Jan 6, 2021
4 Insider transaction Jan 8, 2021 Dec 31, 2020
4 Insider transaction Sep 17, 2020 Sep 16, 2020
SC 13D/A Amended ownership over 5% (active) Sep 11, 2020 —
4 Insider transaction Sep 3, 2020 Sep 1, 2020
4 Insider transaction Aug 31, 2020 Aug 28, 2020
SC 13G/A Amended ownership over 5% (passive) Jun 10, 2020 —
4 Insider transaction Jun 9, 2020 Jun 5, 2020
4 Insider transaction Mar 12, 2020 Mar 10, 2020
4 Insider transaction Mar 12, 2020 Mar 10, 2020
4 Insider transaction Mar 2, 2020 Feb 27, 2020
SC 13G/A Amended ownership over 5% (passive) Feb 12, 2020 —
SC 13G/A Amended ownership over 5% (passive) Feb 12, 2020 —
SC 13G/A Amended ownership over 5% (passive) Feb 4, 2020 —
4 Insider transaction Jan 8, 2020 Jan 7, 2020
4 Insider transaction Dec 31, 2019 Dec 30, 2019
4 Insider transaction Aug 30, 2019 Aug 27, 2019
4 Insider transaction Aug 20, 2019 Aug 19, 2019
4 Insider transaction Aug 16, 2019 Aug 14, 2019
4/A Form 4/a - Aug 16, 2019 Aug 14, 2019
3/A Form 3/a - Aug 16, 2019 Aug 16, 2019
4 Insider transaction Aug 16, 2019 Aug 14, 2018
3 Initial insider ownership Aug 8, 2019 Aug 6, 2019
4 Insider transaction Jun 17, 2019 Jun 14, 2019
4 Insider transaction Jun 11, 2019 Jun 7, 2019
4 Insider transaction Apr 12, 2019 Apr 11, 2019
4 Insider transaction Mar 8, 2019 Mar 6, 2019
4 Insider transaction Mar 7, 2019 Feb 28, 2019
SC 13G/A Amended ownership over 5% (passive) Feb 13, 2019 —
SC 13G/A Amended ownership over 5% (passive) Feb 11, 2019 —
SC 13G/A Amended ownership over 5% (passive) Feb 8, 2019 —
SC 13G/A Amended ownership over 5% (passive) Feb 4, 2019 —
4 Insider transaction Feb 1, 2019 Jan 30, 2019
4 Insider transaction Dec 14, 2018 Dec 12, 2018
4 Insider transaction Sep 28, 2018 Sep 25, 2018
4 Insider transaction Sep 6, 2018 Sep 4, 2018
4 Insider transaction Aug 27, 2018 Aug 24, 2018
4 Insider transaction May 15, 2018 May 15, 2018
4 Insider transaction Apr 10, 2018 Apr 9, 2018
4 Insider transaction Mar 8, 2018 Mar 6, 2018
4 Insider transaction Mar 2, 2018 Feb 27, 2018
3 Initial insider ownership Feb 13, 2018 Dec 27, 2017
3 Initial insider ownership Feb 13, 2018 Dec 27, 2017
SC 13G/A Amended ownership over 5% (passive) Feb 9, 2018 —
SC 13G/A Amended ownership over 5% (passive) Feb 9, 2018 —
SC 13G/A Amended ownership over 5% (passive) Jan 25, 2018 —
4 Insider transaction Jan 10, 2018 Jan 8, 2018
4 Insider transaction Dec 28, 2017 Dec 26, 2017
4 Insider transaction Nov 21, 2017 Nov 17, 2017
4 Insider transaction Oct 6, 2017 Oct 4, 2017
4/A Form 4/a - Sep 20, 2017 Sep 18, 2017
4 Insider transaction Sep 19, 2017 Sep 18, 2017
4 Insider transaction Sep 18, 2017 Sep 15, 2017
4 Insider transaction Aug 28, 2017 Aug 25, 2017
4 Insider transaction Aug 16, 2017 Aug 14, 2017
4 Insider transaction Aug 14, 2017 Aug 11, 2017
4 Insider transaction Jun 16, 2017 Jun 15, 2017
4 Insider transaction Mar 16, 2017 Mar 16, 2017
4 Insider transaction Mar 16, 2017 Mar 15, 2017
4 Insider transaction Mar 3, 2017 Mar 1, 2017
4 Insider transaction Mar 2, 2017 Feb 28, 2017
SC 13G/A Amended ownership over 5% (passive) Feb 13, 2017 —
SC 13G/A Amended ownership over 5% (passive) Feb 9, 2017 —
SC 13G Ownership over 5% (passive) Feb 9, 2017 —
SC 13G/A Amended ownership over 5% (passive) Jan 25, 2017 —
4 Insider transaction Jan 23, 2017 Jan 19, 2017
4 Insider transaction Dec 23, 2016 Dec 21, 2016
4 Insider transaction Dec 15, 2016 Dec 15, 2016
4 Insider transaction Oct 24, 2016 Oct 21, 2016
4 Insider transaction Aug 31, 2016 Aug 29, 2016
4 Insider transaction May 23, 2016 May 19, 2016
4 Insider transaction May 17, 2016 May 17, 2016
4 Insider transaction Feb 26, 2016 Feb 26, 2016
SC 13G/A Amended ownership over 5% (passive) Feb 11, 2016 —
4 Insider transaction Feb 10, 2016 Feb 10, 2016
SC 13G/A Amended ownership over 5% (passive) Feb 10, 2016 —
SC 13G Ownership over 5% (passive) Feb 9, 2016 —
SC 13G/A Amended ownership over 5% (passive) Jan 26, 2016 —
4 Insider transaction Dec 10, 2015 Dec 9, 2015
4 Insider transaction Dec 9, 2015 Dec 4, 2015
4 Insider transaction Dec 4, 2015 Dec 3, 2015
4 Insider transaction Dec 2, 2015 Nov 30, 2015
4 Insider transaction Nov 13, 2015 Nov 12, 2015
4 Insider transaction Nov 3, 2015 Nov 3, 2015
3 Initial insider ownership Sep 24, 2015 Sep 23, 2015
3 Initial insider ownership Sep 24, 2015 Sep 23, 2015
4 Insider transaction Sep 2, 2015 Sep 1, 2015
4 Insider transaction Aug 20, 2015 Aug 18, 2015
4 Insider transaction Aug 18, 2015 Aug 17, 2015
4 Insider transaction Aug 14, 2015 Aug 14, 2015
4 Insider transaction Jun 11, 2015 Jun 10, 2015
4 Insider transaction May 27, 2015 May 26, 2015
4 Insider transaction Feb 26, 2015 Feb 24, 2015
SC 13G/A Amended ownership over 5% (passive) Feb 12, 2015 —
SC 13G Ownership over 5% (passive) Feb 10, 2015 —
SC 13G/A Amended ownership over 5% (passive) Jan 29, 2015 —
4 Insider transaction Jan 21, 2015 Jan 21, 2015
4 Insider transaction Dec 15, 2014 Dec 15, 2014
4 Insider transaction Nov 7, 2014 Nov 3, 2014
4 Insider transaction Sep 15, 2014 Sep 12, 2014
4 Insider transaction Aug 29, 2014 Aug 29, 2014
4 Insider transaction Aug 6, 2014 Aug 4, 2014
4 Insider transaction Jul 1, 2014 Jun 30, 2014
4 Insider transaction Mar 13, 2014 Mar 13, 2014
4 Insider transaction Mar 5, 2014 Mar 3, 2014
4 Insider transaction Feb 27, 2014 Feb 27, 2014
4 Insider transaction Feb 27, 2014 Feb 26, 2014
SC 13G/A Amended ownership over 5% (passive) Feb 14, 2014 —
SC 13G/A Amended ownership over 5% (passive) Jan 29, 2014 —
4 Insider transaction Jan 29, 2014 Jan 29, 2014
4 Insider transaction Dec 12, 2013 Dec 11, 2013
4 Insider transaction Nov 18, 2013 Nov 18, 2013
4 Insider transaction Nov 13, 2013 Nov 12, 2013
4 Insider transaction Sep 6, 2013 Sep 4, 2013
4 Insider transaction Sep 3, 2013 Aug 29, 2013
4 Insider transaction Aug 23, 2013 Aug 22, 2013
4 Insider transaction Jun 24, 2013 Jun 20, 2013
4 Insider transaction Jun 13, 2013 Jun 11, 2013
4 Insider transaction Mar 27, 2013 Mar 26, 2013
4 Insider transaction Feb 27, 2013 Feb 26, 2013
4 Insider transaction Feb 27, 2013 Feb 26, 2013
SC 13G/A Amended ownership over 5% (passive) Feb 14, 2013 —
SC 13G/A Amended ownership over 5% (passive) Feb 8, 2013 —
4 Insider transaction Dec 26, 2012 Dec 21, 2012
4 Insider transaction Dec 13, 2012 Dec 11, 2012
4 Insider transaction Dec 12, 2012 Dec 10, 2012
4 Insider transaction Dec 10, 2012 Dec 7, 2012
SC 13D/A Amended ownership over 5% (active) Dec 5, 2012 —

Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

Company profile

Industry
State Commercial Banks (SIC 6022)
Listed as
IBOC (TXSE)
Fiscal year ends
December 31
Incorporated in
TX
Headquarters
Laredo, TX
SEC filer status
Large accelerated filer
SEC CIK
315709

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.