X0206 3 2015-09-23 0 0000315709 INTERNATIONAL BANCSHARES CORP IBOC 0001653913 DE ANDA JAVIER 1200 SAN BERNARDO LAREDO TX 78040 1 0 0 0 COMMON STOCK 6364 D COMMON STOCK 687 I HELD BY WIFE JAVIER DE ANDA 2015-09-23