13F reference period
Q3 2026
Security Snapshot
INTERNATIONAL BANCSHARES CORP - Common Stock (IBOC) Institutional Ownership
CUSIP: 459044103
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
162
Shares (Excl. Options)
25.53M
Full value: 25,534,008 · shares · 30 Sep 2026Price
$68.50
The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
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- Security type / class
- Equity / Common Stock
- Symbol
- IBOC on TXSE
- All holders as of 30 Sep 2026
- Q3 2026
- Total 13F shares
- 25,534,008
- Total 13F value
- $1,749,146,679
- Portfolio coverage rank
- 0%
- Share change
- +177,629
- Value change
- +$11,387,091
- Number of holders
- 162
- Shares outstanding
- 62,222,033
- SEC-reported price per share
- $68.94
- Insider filing price
- $68.94
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- IBOC - INTERNATIONAL BANCSHARES CORP - Common Stock is tracked under CUSIP 459044103.
- 162 institutions reported positions in Q3 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 299 to 162 between Q2 2026 and Q3 2026.
- SEC-reported value moved from to
$3.36B
Full value: $3,360,970,206 · USD · 30 Jun 2026.$1.75B
Full value: $1,749,146,679 · USD · 30 Sep 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 162 institutions filings for Q3 2026.
Security key
459044103
13F reference period
Q3 2026
13F holders
162
13D/G owners
3
CIK / CUSIP context first
Open Q3 2026 holders
IBOC full holder history
INTERNATIONAL BANCSHARES CORP SEC filings
INTERNATIONAL BANCSHARES CORP company facts
INTERNATIONAL BANCSHARES CORP insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 459044103:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
IBOC
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.5% | $230,699,324 | 3,428,434 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| DIMENSIONAL FUND ADVISORS LP | 5.2% | $220,429,343 | 3,206,231 | Dimensional Fund Advisors LP | 30 Sep 2025 | |||
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC | 5.2% | $218,738,918 | 3,198,405 | American Century Investment Management, Inc. | 31 Dec 2025 |
As of 30 Sep 2026,
162
institutional investors reported holding
shares of
INTERNATIONAL BANCSHARES CORP - Common Stock (IBOC).
This represents
41%
of the company’s total
outstanding shares.
25.53M
Full value: 25,534,008 · shares · 30 Sep 202662.22M
Full value: 62,222,033 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
38%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4% | 3,338,352 | -0.35% | 0.01% | $228,660,420 |
| DIMENSIONAL FUND ADVISORS LP | 5.3% | 3,321,438 | +1.9% | 0.04% | $227,503,741 |
| AMERICAN CENTURY COMPANIES INC | 5% | 3,085,336 | -1.4% | 0.09% | $211,330,090 |
| STATE STREET CORP | 4.5% | 2,817,248 | +0.23% | 0.01% | $192,967,402 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4% | 2,496,418 | +0.02% | 0% | $170,992,151 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5% | 1,572,460 | -0.06% | 0.01% | $107,722,236 |
| Boston Trust Walden Corp | 2% | 1,248,850 | -4.4% | 0.69% | $85,539,980 |
| REINHART PARTNERS, LLC. | 1.2% | 729,929 | -2.6% | 1.2% | $49,996,487 |
| Tamar Securities, LLC | 1.2% | 725,846 | +0.64% | 4.4% | $49,716,791 |
| FIRST TRUST ADVISORS LP | 0.79% | 491,761 | -40% | 0.02% | $33,683,170 |
| PANAGORA ASSET MANAGEMENT INC | 0.77% | 479,343 | +13% | 0.1% | $32,832,599 |
| ProShare Advisors LLC | 0.59% | 365,627 | -3.2% | 0.04% | $25,043,623 |
| VANGUARD FIDUCIARY TRUST CO | 0.59% | 365,124 | -0.2% | 0.01% | $25,009,168 |
| Invesco Ltd. | 0.5% | 313,729 | +5.2% | 0% | $21,488,869 |
| Polaris Capital Management, LLC | 0.49% | 305,400 | -4.9% | 2.2% | $20,918,373 |
| MORGAN STANLEY | 0.49% | 302,359 | -1.1% | 0% | $20,710,098 |
| MACKENZIE FINANCIAL CORP | 0.43% | 269,422 | +15% | 0.02% | $18,454,060 |
| Cerity Partners LLC | 0.32% | 202,088 | +3.5% | 0.02% | $13,841,930 |
| Verition Fund Management LLC | 0.28% | 174,460 | 0.09% | $11,949,638 | |
| CSM Advisors, LLC | 0.28% | 173,571 | +4.9% | 0.26% | $11,890,000 |
| FRANKLIN TEMPLETON INC | 0.27% | 167,782 | +20% | 0% | $11,580,314 |
| Kovack Advisors, Inc. | 0.23% | 142,900 | +2.8% | 0.42% | $9,877,248 |
| Eldred Rock Partners, LLC | 0.2% | 127,460 | 0% | 1.9% | $8,730,373 |
| DENALI ADVISORS LLC | 0.2% | 124,880 | +15% | 0.86% | $8,553,656 |
| Swiss National Bank | 0.18% | 110,100 | +0.82% | 0% | $7,541,300 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 25,534,008 | $1,749,146,679 | +$11,387,091 | $68.50 | 162 |
| 2026 Q2 | 44,272,652 | $3,360,970,206 | +$114,670,370 | $75.95 | 299 |
| 2026 Q1 | 42,875,169 | $2,885,089,311 | -$35,891,417 | $67.29 | 293 |
| 2025 Q4 | 43,446,739 | $2,886,728,641 | +$78,615,810 | $66.44 | 266 |
| 2025 Q3 | 42,251,399 | $2,904,804,211 | -$27,616,139 | $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 |