Latest Period
Q2 2026
Security Snapshot
INTERNATIONAL BANCSHARES CORP - Common Stock (IBOC) Institutional Ownership
CUSIP: 459044103
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
299
Shares (Excl. Options)
44,272,866
Price
$75.95
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- Security type / class
- Equity / Common Stock
- Symbol
- IBOC on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 44,272,866
- Total 13F value
- $3,360,986,483
- Portfolio coverage rank
- 0%
- Share change
- +1,454,573
- Value change
- +$114,693,407
- Number of holders
- 299
- Shares outstanding
- 62,222,033
- SEC-reported price per share
- $72.81
- Insider filing price
- $72.81
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
Key facts
- IBOC - INTERNATIONAL BANCSHARES CORP - Common Stock is tracked under CUSIP 459044103.
- 299 institutions reported positions in Q2 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 293 to 299 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $2,885,089,311 to $3,360,986,483.
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 299 institutions filings for Q2 2026.
Security key
459044103
Latest holder period
Q2 2026
13F holders
299
13D/G owners
3
CIK / CUSIP context first
Open Q2 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 Jun 2026, 299 institutional investors reported holding 44,272,866 shares of INTERNATIONAL BANCSHARES CORP - Common Stock (IBOC). This represents 71% of the company’s total 62,222,033 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
59%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 11% | 7,048,194 | +6.1% | 0.01% | $535,310,355 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4% | 3,350,198 | -1.5% | 0.01% | $254,447,538 |
| DIMENSIONAL FUND ADVISORS LP | 5.2% | 3,258,656 | +2.3% | 0.04% | $247,496,858 |
| AMERICAN CENTURY COMPANIES INC | 5% | 3,128,416 | -3.1% | 0.11% | $237,603,195 |
| STATE STREET CORP | 4.5% | 2,810,776 | +7.1% | 0.01% | $213,478,437 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4% | 2,495,909 | +0.86% | 0% | $189,564,289 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5% | 1,573,378 | +5.5% | 0.01% | $119,514,583 |
| Boston Trust Walden Corp | 2.1% | 1,306,605 | +20% | 0.76% | $99,236,664 |
| T. Rowe Price Investment Management, Inc. | 1.9% | 1,161,106 | -0.12% | 0.06% | $88,187,000 |
| GOLDMAN SACHS GROUP INC | 1.7% | 1,035,745 | +12% | 0.01% | $78,664,837 |
| Azora Capital LP | 1.4% | 885,768 | -33% | 2.8% | $67,274,080 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.3% | 839,850 | +54% | 0.01% | $63,788,000 |
| FIRST TRUST ADVISORS LP | 1.3% | 820,840 | -28% | 0.04% | $62,342,798 |
| NORTHERN TRUST CORP | 1.2% | 750,864 | +13% | 0.01% | $57,028,122 |
| REINHART PARTNERS, LLC. | 1.2% | 749,761 | +0.55% | 1.3% | $56,945,617 |
| Tamar Securities, LLC | 1.2% | 721,211 | -4.7% | 5.1% | $54,775,970 |
| NORGES BANK | 1.1% | 700,374 | 0.01% | $53,193,405 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.1% | 694,616 | -1.3% | 0.01% | $52,756,085 |
| MILLENNIUM MANAGEMENT LLC | 1% | 650,775 | -8.7% | 0.03% | $49,426,361 |
| AQR CAPITAL MANAGEMENT LLC | 0.94% | 587,610 | +19% | 0.02% | $44,629,013 |
| Bank of New York Mellon Corp | 0.7% | 436,744 | -2.6% | 0.01% | $33,170,713 |
| PANAGORA ASSET MANAGEMENT INC | 0.68% | 423,256 | +9.7% | 0.1% | $32,146,293 |
| ProShare Advisors LLC | 0.61% | 377,605 | +2.9% | 0.04% | $28,679,099 |
| VANGUARD FIDUCIARY TRUST CO | 0.59% | 365,865 | +2.8% | 0.01% | $27,787,447 |
| Polaris Capital Management, LLC | 0.52% | 321,100 | -31% | 2.3% | $24,387,545 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 44,272,866 | $3,360,986,483 | +$114,693,407 | $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 |
| 2020 Q2 | 39,230,244 | $1,254,736,625 | +$4,389,133 | $32.02 | 167 |