INTERNATIONAL BANCSHARES CORP - Common Stock (IBOC) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
IBOC on Nasdaq
Shares outstanding
61,658,288
Price per share
$66.44
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
42,251,374
Total reported value
$2,904,805,929
% of total 13F portfolios
0%
Share change
-461,318
Value change
-$29,756,108
Number of holders
251
Price from insider filings
$66.44
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of INTERNATIONAL BANCSHARES CORP - Common Stock (IBOC) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
DIMENSIONAL FUND ADVISORS LP 5.2% $220,429,343 3,206,231 Dimensional Fund Advisors LP 30 Sep 2025

As of 30 Sep 2025, 251 institutional investors reported holding 42,251,374 shares of INTERNATIONAL BANCSHARES CORP - Common Stock (IBOC). This represents 69% of the company’s total 61,658,288 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of INTERNATIONAL BANCSHARES CORP - Common Stock (IBOC) together control 60% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 11% 6,715,540 -0.62% 0.01% $461,693,391
VANGUARD GROUP INC 10% 6,302,986 -0.62% 0.01% $433,330,288
DIMENSIONAL FUND ADVISORS LP 5.2% 3,206,231 -2.9% 0.05% $220,428,775
AMERICAN CENTURY COMPANIES INC 5% 3,090,223 +7.1% 0.11% $212,452,831
STATE STREET CORP 4% 2,476,421 -3.5% 0.01% $170,253,944
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 3.6% 2,231,899 +1.8% 0.02% $153,443,056
GEODE CAPITAL MANAGEMENT, LLC 2.3% 1,425,975 +0.83% 0.01% $98,048,786
FIRST TRUST ADVISORS LP 2.1% 1,270,538 +1.5% 0.07% $87,349,487
Boston Trust Walden Corp 2% 1,249,399 -11% 0.63% $85,896,185
Azora Capital LP 1.8% 1,128,361 +3.5% 3.6% $77,574,819
T. Rowe Price Investment Management, Inc. 1.7% 1,021,356 +76% 0.04% $70,219,000
Tamar Securities, LLC 1.2% 732,836 +1.4% 5.7% $50,382,460
NORTHERN TRUST CORP 1.1% 693,263 -0.18% 0.01% $47,661,831
REINHART PARTNERS, LLC. 1.1% 667,315 -15% 1.5% $45,878,998
AQR CAPITAL MANAGEMENT LLC 1% 614,918 -6.7% 0.03% $42,275,631
MILLENNIUM MANAGEMENT LLC 0.98% 603,574 +57% 0.03% $41,495,712
Polaris Capital Management, LLC 0.89% 546,004 -4.8% 2.5% $37,537,775
GOLDMAN SACHS GROUP INC 0.88% 541,592 -12% 0.01% $37,234,432
ProShare Advisors LLC 0.84% 516,287 -5.5% 0.07% $35,494,732
Bank of New York Mellon Corp 0.78% 478,617 -1.1% 0.01% $32,904,941
PANAGORA ASSET MANAGEMENT INC 0.6% 371,239 +0.73% 0.1% $25,522,681
Freestone Grove Partners LP 0.43% 266,620 0.14% $18,330,125
Invesco Ltd. 0.42% 261,366 -4.8% 0% $17,968,913
MORGAN STANLEY 0.41% 249,954 -12% 0% $17,184,497
ALLIANCEBERNSTEIN L.P. 0.36% 224,519 +22% 0% $15,435,681

Institutional Holders of INTERNATIONAL BANCSHARES CORP - Common Stock (IBOC) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 403,065 $26,817,274 +$617,706 $66.44 26
2025 Q3 42,251,374 $2,904,805,929 -$29,756,108 $68.75 251
2025 Q2 42,707,059 $2,842,601,547 +$73,618,401 $66.56 254
2025 Q1 41,794,104 $2,635,180,123 -$8,829,215 $63.06 249
2024 Q4 41,916,800 $2,647,360,256 +$48,320,140 $63.16 239
2024 Q3 41,145,583 $2,460,485,786 -$64,338,717 $59.79 232
2024 Q2 42,166,144 $2,412,199,449 -$83,200,776 $57.21 207
2024 Q1 43,580,754 $2,446,960,647 +$151,589,810 $56.14 196
2023 Q4 40,937,981 $2,223,757,537 +$22,434,163 $54.32 197
2023 Q3 40,545,409 $1,757,250,325 -$11,009,765 $43.34 182
2023 Q2 40,789,895 $1,802,880,232 -$15,613,611 $44.20 187
2023 Q1 41,164,992 $1,762,615,185 -$8,959,950 $42.82 184
2022 Q4 41,508,761 $1,899,412,121 +$4,292,782 $45.76 192
2022 Q3 41,431,178 $1,764,573,778 -$36,655,213 $42.50 173
2022 Q2 41,964,939 $1,681,605,363 -$6,013,992 $40.08 174
2022 Q1 42,340,063 $1,790,237,563 +$89,573,779 $42.21 195
2021 Q4 40,164,461 $1,702,556,221 -$21,845,901 $42.39 176
2021 Q3 39,659,961 $1,651,646,873 -$18,981,552 $41.64 185
2021 Q2 40,573,900 $1,742,742,328 +$33,056,856 $42.94 181
2021 Q1 39,806,595 $1,851,373,617 +$26,608,454 $46.42 177
2020 Q4 39,270,264 $1,471,561,639 +$36,637,683 $37.44 164
2020 Q3 38,434,033 $1,003,500,157 -$21,908,203 $26.06 168
2020 Q2 39,230,244 $1,254,736,625 +$4,389,133 $32.02 167
2020 Q1 38,665,158 $1,040,126,743 -$52,374,190 $26.88 159
2019 Q4 40,232,763 $1,732,759,625 +$16,709,307 $43.07 176
2019 Q3 39,839,236 $1,539,809,052 -$8,724,513 $38.62 170
2019 Q2 40,118,140 $1,512,250,292 +$15,483,081 $37.71 175
2019 Q1 39,868,559 $1,516,985,823 +$13,311,360 $38.03 166
2018 Q4 39,526,764 $1,359,636,109 -$28,406,142 $34.40 167
2018 Q3 39,988,996 $1,799,206,095 +$11,751,575 $45.00 168
2018 Q2 39,735,498 $1,700,640,536 -$4,944,304 $42.80 164
2018 Q1 39,863,180 $1,550,712,937 +$35,136,416 $38.90 155
2017 Q4 38,949,462 $1,546,595,480 +$3,029,356 $39.70 164
2017 Q3 38,582,022 $1,547,048,519 +$37,496,718 $40.10 151
2017 Q2 37,674,491 $1,320,499,150 -$775,063 $35.05 156
2017 Q1 37,660,026 $1,333,326,923 +$224,860,934 $35.40 157
2016 Q4 37,162,224 $1,516,192,200 +$3,292,997 $40.80 163
2016 Q3 37,260,367 $1,108,719,844 -$2,746,596 $29.78 150
2016 Q2 37,470,101 $977,686,121 +$7,411,247 $26.09 151
2016 Q1 37,191,369 $918,082,000 +$15,842,163 $24.66 143
2015 Q4 36,463,639 $937,526,615 +$942,454 $25.70 149
2015 Q3 36,375,146 $910,470,590 +$6,000,976 $25.03 144
2015 Q2 36,077,701 $968,739,687 -$8,507,285 $26.87 153
2015 Q1 36,397,757 $946,133,739 +$8,058,814 $26.03 138
2014 Q4 36,090,860 $957,468,106 -$6,263,858 $26.54 132
2014 Q3 36,226,543 $894,189,399 +$8,049,778 $24.67 130
2014 Q2 35,688,219 $962,787,690 +$11,431,564 $27.00 131
2014 Q1 35,406,126 $884,936,813 +$12,210,370 $25.08 134