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
42,249,754
Total reported value
$2,904,694,929
% of total 13F portfolios
0%
Share change
-461,318
Value change
-$29,756,088
Number of holders
250
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, 250 institutional investors reported holding 42,249,754 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 114,248 $7,590,687 +$816,165 $66.44 9
2025 Q3 42,249,754 $2,904,694,929 -$29,756,088 $68.75 250
2025 Q2 42,707,059 $2,842,601,547 +$73,618,411 $66.56 254
2025 Q1 41,794,004 $2,635,173,409 -$8,829,180 $63.06 248
2024 Q4 41,916,800 $2,647,358,556 +$86,464,649 $63.16 239
2024 Q3 40,541,655 $2,424,377,281 -$99,213,964 $59.79 231
2024 Q2 42,170,866 $2,412,469,995 -$51,964,356 $57.21 207
2024 Q1 42,985,234 $2,413,527,763 +$123,605,365 $56.14 194
2023 Q4 202,550 $11,002,524 +$3,721,406 $54.32 2
2023 Q3 39,723,826 $1,721,642,764 -$12,219,759 $43.34 180
2023 Q2 38,987,442 $1,723,212,164 -$39,399,499 $44.20 184
2023 Q1 40,614,883 $1,739,059,839 -$8,816,316 $42.82 183
2022 Q4 40,672,692 $1,861,153,404 +$11,062,987 $45.76 190
2022 Q3 41,178,604 $1,753,839,010 -$35,762,486 $42.50 170
2022 Q2 41,760,732 $1,673,421,129 -$7,691,696 $40.08 172
2022 Q1 41,910,270 $1,772,098,413 +$91,897,628 $42.21 191
2021 Q4 40,151,550 $1,702,009,221 -$21,538,742 $42.39 175
2021 Q3 40,170,160 $1,668,066,873 -$18,800,498 $41.64 186
2021 Q2 40,573,931 $1,742,743,328 +$33,154,761 $42.94 182
2021 Q1 39,756,440 $1,849,045,617 +$29,655,082 $46.42 177
2020 Q4 38,318,664 $1,435,932,639 +$36,441,426 $37.44 161
2020 Q3 38,282,859 $999,560,157 -$22,854,330 $26.06 165
2020 Q2 39,132,565 $1,251,607,625 +$4,032,368 $32.02 164
2020 Q1 38,581,255 $1,037,870,743 -$48,566,394 $26.88 155
2019 Q4 39,924,377 $1,719,478,625 +$17,353,450 $43.07 174
2019 Q3 39,515,893 $1,527,309,052 -$6,357,881 $38.62 168
2019 Q2 39,677,811 $1,495,646,292 +$50,228,037 $37.71 172
2019 Q1 39,385,355 $1,498,600,823 +$17,345,153 $38.03 163
2018 Q4 39,285,360 $1,351,332,109 -$35,725,786 $34.40 164
2018 Q3 39,633,185 $1,783,194,095 +$10,972,131 $45.00 167
2018 Q2 39,716,198 $1,699,813,536 +$34,428,356 $42.80 161
2018 Q1 39,809,879 $1,548,639,937 +$34,990,900 $38.90 153
2017 Q4 38,899,904 $1,544,627,480 +$3,011,827 $39.70 162
2017 Q3 38,532,906 $1,545,079,519 +$37,402,408 $40.10 149
2017 Q2 37,627,726 $1,318,860,150 -$1,329,654 $35.05 154
2017 Q1 37,627,296 $1,332,167,923 +$214,638,694 $35.40 156
2016 Q4 37,162,224 $1,516,192,200 +$3,289,722 $40.80 164
2016 Q3 36,165,627 $1,076,115,844 -$3,990,226 $29.78 148
2016 Q2 37,470,101 $977,686,121 +$7,668,848 $26.09 153
2016 Q1 35,320,063 $871,936,000 +$15,569,344 $24.66 141
2015 Q4 34,589,286 $889,355,615 +$1,856,222 $25.70 146
2015 Q3 34,482,644 $863,101,590 +$6,390,752 $25.03 142
2015 Q2 34,175,236 $917,619,687 -$7,708,206 $26.87 152
2015 Q1 34,406,592 $894,303,739 +$7,314,873 $26.03 135
2014 Q4 34,196,931 $907,203,106 -$12,984,890 $26.54 130
2014 Q3 34,316,203 $847,071,399 +$8,236,843 $24.67 127
2014 Q2 33,773,580 $911,092,690 +$12,665,502 $27.00 129
2014 Q1 33,445,784 $835,771,813 +$13,684,018 $25.08 133