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style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:12pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</b></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;white-space:pre-wrap;">Washington, D.C.  20549</b></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:18pt;font-weight:bold;">FORM </b><ix:nonNumeric contextRef="Duration_9_13_2019_To_9_13_2019_vYWAVmkpMUWj1lPA_HC-Hg" name="dei:DocumentType" id="Narr_fHRa-BGW5UWc54HvjuQAZg"><b style="font-size:18pt;font-weight:bold;">8-K</b></ix:nonNumeric></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New 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style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:35%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:4.99%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr><td style="vertical-align:top;width:15%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="font-weight:bold;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:35%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_9_13_2019_To_9_13_2019_vYWAVmkpMUWj1lPA_HC-Hg" name="dei:EntityAddressAddressLine1" id="Narr_wAosZne6rE2aHgw8De2IXQ"><b style="font-weight:bold;">1200 San Bernardo</b></ix:nonNumeric><b style="font-weight:bold;">, </b><ix:nonNumeric contextRef="Duration_9_13_2019_To_9_13_2019_vYWAVmkpMUWj1lPA_HC-Hg" name="dei:EntityAddressCityOrTown" id="Narr_QN2J1yg3MkiHAyvhe--EZw"><b style="font-weight:bold;">Laredo</b></ix:nonNumeric><b style="font-weight:bold;">, </b><ix:nonNumeric contextRef="Duration_9_13_2019_To_9_13_2019_vYWAVmkpMUWj1lPA_HC-Hg" format="ixt-sec:stateprovnameen" name="dei:EntityAddressStateOrProvince" id="Narr_bIQmtVcIpEWNp9JoqCGwvg"><b style="font-weight:bold;">Texas</b></ix:nonNumeric></p></td><td style="vertical-align:top;width:9.99%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="font-weight:bold;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:35%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_9_13_2019_To_9_13_2019_vYWAVmkpMUWj1lPA_HC-Hg" name="dei:EntityAddressPostalZipCode" id="Tc_aH8ng0Rk6UO54RCR3A0B_w_1_3"><b style="font-weight:bold;">78040-1359</b></ix:nonNumeric></p></td><td style="vertical-align:top;width:4.99%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New 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style="vertical-align:top;width:4.99%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td></tr></table><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;">Registrant&#39;s telephone number, including area code<b style="font-weight:bold;white-space:pre-wrap;">   (</b><ix:nonNumeric contextRef="Duration_9_13_2019_To_9_13_2019_vYWAVmkpMUWj1lPA_HC-Hg" name="dei:CityAreaCode" id="Narr_I4uErIprf0iiMN84VDGMMw"><b style="font-weight:bold;">956</b></ix:nonNumeric><b style="font-weight:bold;">) </b><ix:nonNumeric contextRef="Duration_9_13_2019_To_9_13_2019_vYWAVmkpMUWj1lPA_HC-Hg" name="dei:LocalPhoneNumber" id="Narr_lKSDZGVSo0mxiUSSQL0tEA"><b 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style="font-family:'Wingdings';font-weight:bold;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:22.66%;border-bottom:1px solid #000000;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><b style="font-family:'Times New Roman';font-weight:bold;">Trading Symbol (s):</b></p></td><td style="vertical-align:top;width:2.69%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="font-family:'Wingdings';font-weight:bold;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:40.29%;border-bottom:1px solid #000000;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><b style="font-family:'Times New Roman';font-weight:bold;">Name of each exchange on which registered:</b></p></td><td 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name="dei:SecurityExchangeName" id="Tc_BtOuS4tZg0-8vjqgiab-sA_2_4"><span style="font-family:'Times New Roman';">NASDAQ</span></ix:nonNumeric></p></td><td style="vertical-align:top;width:3.38%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Wingdings';visibility:hidden;">&#8203;</span></p></td></tr></table><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2.below):</p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New 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style="font-size:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><ix:nonNumeric contextRef="Duration_9_13_2019_To_9_13_2019_vYWAVmkpMUWj1lPA_HC-Hg" format="ixt-sec:boolballotbox" name="dei:PreCommencementTenderOffer" id="Narr_mJ2IX2AkrEWhbM0uU9pTMA"><span style="font-family:'Segoe UI Symbol';">&#9744;</span></ix:nonNumeric> Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><ix:nonNumeric contextRef="Duration_9_13_2019_To_9_13_2019_vYWAVmkpMUWj1lPA_HC-Hg" format="ixt-sec:boolballotbox" name="dei:PreCommencementIssuerTenderOffer" id="Narr_1p-WbAiiSEGVz4C0686b5Q"><span style="font-family:'Segoe UI Symbol';">&#9744;</span></ix:nonNumeric><span style="white-space:pre-wrap;"> Pre-commencement communications pursuant to Rule 13e-4 (c )  under the Exchange Act (17 CFR 240.13e-4 (c))</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';font-size:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">Emerging growth company </span><ix:nonNumeric 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Symbol';">&#9744;</span></ix:nonNumeric></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:16pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:4pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-size:6pt;visibility:hidden;">&#8203;</span></p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:79.41%;border:0;margin:30pt 10.29% 30pt 10.29%;"></div><div style="max-width:100%;padding-left:10.29%;padding-right:10.29%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New (WE)';font-size:10pt;padding-left:72pt;text-indent:-72pt;margin:0pt;"><b style="font-family:'Times New Roman';font-weight:bold;">Item 8.01&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Other Events.</b></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="font-family:'Times New Roman';">On September&#160;16, 2019 International Bancshares Corporation (&#8220;IBC&#8221;) issued a news release announcing that on September&#160;13, 2019,&#160;IBC&#8217;s Board of Directors approved the declaration of a fifty-five cents per share cash dividend for shareholders of record of Common Stock, $1.00 par value, as of the close of business on September 30, 2019, payable on October 15, 2019.</span></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="font-family:'Times New Roman';">The news release announcing the cash dividend attached hereto and filed herewith as Exhibit&#160;99, is incorporated herein by reference.</span></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="font-family:'Times New Roman';">All of the information furnished in Item&#160;8.01 of this report and the accompanying exhibits is also intended to be included under &#8220;Item 7.01 &#8212; Regulation Fair Disclosure,&#8221; shall not be deemed to be &#8220;filed&#8221; for the purposes of Section&#160;18 of the Securities and Exchange Act of 1934, as amended, is not subject to the liabilities of that section and shall not be incorporated by reference in any filing under the Securities Act of 1933, as amended.</span></p><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><b style="font-family:'Times New Roman';font-weight:bold;">Item 9.01 Financial Statements and Exhibits.</b></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;padding-left:36pt;text-align:justify;text-indent:-36pt;margin:0pt;"><span style="font-family:'Times New Roman';">99&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;News Release of International Bancshares Corporation dated September&#160;16, 2019, entitled, &#8220;International Bancshares Corporation Announces 10% Increase in Cash Dividend&#8221;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:24pt 0pt 0pt 0pt;">2</p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:79.41%;border:0;margin:30pt 10.29% 30pt 10.29%;"></div><div style="max-width:100%;padding-left:10.29%;padding-right:10.29%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="font-family:'Times New Roman';">EXHIBIT&#160;INDEX</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;font-size:16pt;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:bottom;width:11.95%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:bottom;width:2.05%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:bottom;width:71.94%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:bottom;width:2.05%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:bottom;width:11.98%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td></tr><tr><td style="vertical-align:bottom;width:11.95%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:8pt;margin:0pt;"><b style="font-family:'Times New Roman';font-weight:bold;">Exhibit&#160;Number</b></p></td><td style="vertical-align:bottom;width:2.05%;border-bottom:1.0pt solid transparent;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;&#160;&#160;&#160;</span></p></td><td style="vertical-align:bottom;width:71.94%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:8pt;text-align:center;margin:0pt;"><b style="font-family:'Times New Roman';font-weight:bold;">Description</b></p></td><td style="vertical-align:bottom;width:2.05%;border-bottom:1.0pt solid transparent;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;&#160;&#160;&#160;</span></p></td><td style="vertical-align:bottom;width:11.98%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:8pt;text-align:center;margin:0pt;"><b style="font-family:'Times New Roman';font-weight:bold;">Page</b><span style="font-family:'Times New Roman';"><br /></span><b style="font-family:'Times New Roman';font-weight:bold;">Number</b></p></td></tr><tr><td style="vertical-align:top;width:11.95%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:2.05%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:71.94%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:2.05%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:11.98%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td></tr><tr><td style="vertical-align:top;width:11.95%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="font-family:'Times New Roman';">99</span></p></td><td style="vertical-align:top;width:2.05%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:71.94%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:justify;margin:0pt;"><a href="iboc-20190913xex99.htm"><span style="font-family:'Times New Roman';font-size:10pt;font-style:normal;font-weight:normal;text-align:justify;">News Release of International Bancshares Corporation dated September 16, 2019, entitled, &#8220;International Bancshares Corporation Announces 10% Increase in Cash Dividend.&#8221;</span></a></p></td><td style="vertical-align:top;width:2.05%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:11.98%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="font-family:'Times New Roman';">5</span></p></td></tr><tr><td style="vertical-align:top;width:11.95%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="font-family:'Times New Roman';">104</span></p></td><td style="vertical-align:top;width:2.05%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:71.94%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:2pt 0pt 2pt 0pt;"><span style="font-family:'Times New Roman';">The cover page from International Bancshares Corporation Current Report on Form 8-K, formatted in Inline XBRL&#160; </span></p></td><td style="vertical-align:top;width:2.05%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';font-size:1pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:11.98%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p></td></tr></table><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:24pt 0pt 0pt 0pt;">3</p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:79.41%;border:0;margin:30pt 10.29% 30pt 10.29%;"></div><div style="max-width:100%;padding-left:10.29%;padding-right:10.29%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">SIGNATURES</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;text-indent:36pt;margin:0pt;"><span style="font-family:'Times New Roman';">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;font-size:16pt;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:top;width:4%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:top;width:45.99%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td></tr><tr><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td colspan="2" style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">INTERNATIONAL BANCSHARES CORPORATION</span></p></td></tr><tr><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td colspan="2" style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">(Registrant)</span></p></td></tr><tr><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td colspan="2" style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td></tr><tr><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td colspan="2" style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td></tr><tr><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:4%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">By:</span></p></td><td style="vertical-align:top;width:45.99%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">/s/ Dennis E. Nixon</span></p></td></tr><tr><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:4%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:45.99%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">Dennis E. Nixon, President and</span></p></td></tr><tr><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:4%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td style="vertical-align:top;width:45.99%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">Chairman of the Board</span></p></td></tr><tr><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td><td colspan="2" style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td></tr><tr><td style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';">September 16, 2019</span></p></td><td colspan="2" style="vertical-align:top;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New (WE)';font-size:1pt;margin:0pt;"><span style="font-family:'Times New Roman';">&#160;</span></p></td></tr></table><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="font-family:'Times New Roman';visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New (WE)';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New (WE)';font-size:10pt;text-align:center;margin:24pt 0pt 0pt 0pt;">4</p></div></div>
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
​
FORM
8-K
​
CURRENT REPORT
Pursuant to Section 13 or 15 (d) of The Securities Exchange Act of 1934
​
Date of Report (Date of earliest event reported):
September 13, 2019
​
INTERNATIONAL BANCSHARES CORPORATION
(Exact name of registrant as specified in its charter)
​
​
​
​
​
​
Texas
​
000-9439
​
74-2157138
(State or other jurisdiction
​
(Commission File
​
(IRS Employer
of incorporation
​
Number)
​
Identification No.)
​
​
​
​
​
​
​
1200 San Bernardo
,
Laredo
,
Texas
​
78040-1359
​
​
(Address of principal executive offices)
​
(Zip Code)
​
​
Registrant's telephone number, including area code
(
956
)
722-7611
​
None
(Former name or former address, if changed since last report)
​
Securities registered pursuant to Section 12(b) of the Act:
​
​
​
​
​
​
​
Title of Each Class:
​
Trading Symbol (s):
​
Name of each exchange on which registered:
​
Common Stock
, $1.00 par value
​
IBOC
​
NASDAQ
​
​
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2.below):
​
☐
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
​
☐
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
​
☐
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
​
☐
Pre-commencement communications pursuant to Rule 13e-4 (c )  under the Exchange Act (17 CFR 240.13e-4 (c))
​
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
​
Emerging growth company
☐
​
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
☐
​
​
​
Item 8.01           Other Events.
​
On September 16, 2019 International Bancshares Corporation ("IBC") issued a news release announcing that on September 13, 2019, IBC's Board of Directors approved the declaration of a fifty-five cents per share cash dividend for shareholders of record of Common Stock, $1.00 par value, as of the close of business on September 30, 2019, payable on October 15, 2019.
​
The news release announcing the cash dividend attached hereto and filed herewith as Exhibit 99, is incorporated herein by reference.
​
All of the information furnished in Item 8.01 of this report and the accompanying exhibits is also intended to be included under "Item 7.01 — Regulation Fair Disclosure," shall not be deemed to be "filed" for the purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, is not subject to the liabilities of that section and shall not be incorporated by reference in any filing under the Securities Act of 1933, as amended.
​
Item 9.01 Financial Statements and Exhibits.
​
99          News Release of International Bancshares Corporation dated September 16, 2019, entitled, "International Bancshares Corporation Announces 10% Increase in Cash Dividend"
​
​
2
EXHIBIT INDEX
​
Exhibit Number
Description
Page
Number
99
News Release of International Bancshares Corporation dated September 16, 2019, entitled, "International Bancshares Corporation Announces 10% Increase in Cash Dividend."
5
104
​
The cover page from International Bancshares Corporation Current Report on Form 8-K, formatted in Inline XBRL
​
​
​
​
3
SIGNATURES
​
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
​
INTERNATIONAL BANCSHARES CORPORATION
(Registrant)
By:
/s/ Dennis E. Nixon
Dennis E. Nixon, President and
Chairman of the Board
September 16, 2019
​
​
​
4