Welcome to our dedicated page for International Bancshares SEC filings (Ticker: IBOC), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The International Bancshares Corporation (NASDAQ: IBOC) SEC filings page provides access to the company’s regulatory disclosures as a Texas-incorporated, multi-bank financial holding company. As a registrant under the Securities Exchange Act of 1934, International Bancshares Corporation files reports and current reports with the Securities and Exchange Commission, and its common stock is registered for trading on The Nasdaq Stock Market under the symbol IBOC.
Among the key documents available are Form 8-K current reports, which the company uses to furnish earnings releases and other material events. Recent 8-K filings include items under Results of Operations and Financial Condition, where International Bancshares Corporation incorporates by reference news releases announcing net income and diluted earnings per share for quarterly and year-to-date periods. Other 8-K filings disclose actions by the board of directors, such as the declaration of cash dividends on common stock and amendments to the company’s bylaws.
Investors can also review filings that address corporate governance and legal framework. One Form 8-K describes Second Amended and Restated By-Laws that set ownership thresholds for shareholders to bring derivative proceedings, designate specific courts in Texas as exclusive forums for certain internal entity claims, and provide for waivers of jury trial rights in specified actions, to the fullest extent permitted by law.
Through this page, users can follow how International Bancshares Corporation reports its financial results, capital actions, and governance changes to regulators. AI-powered tools on the platform can help summarize lengthy filings, highlight key items such as earnings disclosures and bylaw amendments, and make it easier to interpret the implications of each document without reading every section in detail.
Antonio R. Sanchez Jr., a director and 10% owner of International Bancshares Corp (IBOC), reported dispositions of company common stock in two transactions. The Form 4 shows sales of 80,000 shares on 08/14/2025 at a weighted average price of $69.83 and 40,000 shares on 08/15/2025 at a weighted average price of $68.12, for a total of 120,000 shares sold. The filing lists multiple holdings across direct and indirect vehicles, including a direct position of 1,805,554 shares and several indirect positions held in trust and partnership; the record shows beneficial ownership figures of 487,439 and 447,439 shares associated with partnership holdings following the reported sales. The reporting person certified the transactions and provided price-range explanations for the weighted averages.
International Bancshares Corp (IBOC) Form 144 notice shows a proposed sale of 120,000 shares of common stock through Piper Sandler & Co., with an aggregate market value of $8,503,200.00. The sale is scheduled for 08/14/2025 on NASDAQ. The shares were acquired on 07/23/1996 as a partnership contribution from Santig Ltd, and payment was recorded on the acquisition date. The filer reports no securities sold in the past three months for the person on whose account these shares will be sold. The notice includes the required representation that the seller is not aware of undisclosed material adverse information about the issuer.
International Bancshares Corporation adopted Second Amended and Restated By-Laws effective August 6, 2025. The By-Laws require that a shareholder or group beneficially own 3% of IBC's common stock to institute or maintain a derivative proceeding. They designate the Texas Business Court, Fourth Business Court Division, or if that court lacks jurisdiction the U.S. District Court for the Southern District of Texas, or if that court lacks jurisdiction the state district court of Webb County as the sole and exclusive forum for filings unless agreed otherwise. The By-Laws also provide that, to the fullest extent permitted by law, shareholders, directors, and officers irrevocably and unconditionally waive any right to a trial by jury in internal entity claims and other claims against IBC, and state that purchasers or holders of IBC stock are deemed to have notice of and consented to these provisions. A copy of the By-Laws is attached as Exhibit 3.1.
International Bancshares Corp. (NASDAQ: IBOC) filed a Form 8-K on August 1, 2025 to disclose a shareholder-return action under Item 8.01. The Board of Directors approved a semi-annual $0.70 per-share cash dividend on the company’s common stock.
Key dates: shareholders of record as of August 15, 2025 will receive payment on August 29, 2025. The related press release is furnished as Exhibit 99 and incorporated by reference. No other operational metrics, guidance, or transactions were reported; the disclosure is furnished for Regulation FD purposes and is not deemed “filed” under Section 18 of the Exchange Act.