INTERNATIONAL BANCSHARES COR (IBOC)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Institutions report 44,281,797 shares against 62,191,514 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $535.3M | 7,048,194 | 0.01% | 8q | +6.1%+$30.6M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $254.4M | 3,350,198 | 0.01% | 2q | -1.5%-$3.9M |
| DIMENSIONAL FUND ADVISORS LP | $247.5M | 3,258,656 | 0.04% | 31q | +2.3%+$5.5M |
| AMERICAN CENTURY COMPANIES INC | $237.6M | 3,128,416 | 0.11% | 31q | -3.1%-$7.6M |
| STATE STREET CORP | $213.5M | 2,810,776 | 0.01% | 31q | +7.1%+$14.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | $189.6M | 2,495,909 | 0.00% | 2q | +0.9%+$1.6M |
| GEODE CAPITAL MANAGEMENT, LLC | $119.5M | 1,573,378 | 0.01% | 31q | +5.5%+$6.3M |
| Boston Trust Walden Corp | $99.2M | 1,306,605 | 0.76% | 15q | +20.1%+$16.6M |
| T. Rowe Price Investment Management, Inc. | $88.2M | 1,161,106 | 0.06% | 9q | HELD |
| GOLDMAN SACHS GROUP INC | $78.7M | 1,035,745 | 0.01% | 31q | +12.1%+$8.5M |
| Azora Capital LP | $67.3M | 885,768 | 2.83% | 31q | -32.5%-$32.4M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $63.8M | 839,850 | 0.01% | 31q | +54.2%+$22.4M |
| FIRST TRUST ADVISORS LP | $62.3M | 820,840 | 0.04% | 31q | -27.8%-$24.1M |
| NORTHERN TRUST CORP | $57.0M | 750,864 | 0.01% | 31q | +12.6%+$6.4M |
| REINHART PARTNERS, LLC. | $56.9M | 749,761 | 1.30% | 31q | +0.5%+$308.7K |
| Tamar Securities, LLC | $54.8M | 721,211 | 5.12% | 25q | -4.7%-$2.7M |
| NORGES BANK | $53.2M | 700,374 | 0.01% | 32q | +2.1%+$1.1M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $52.8M | 694,616 | 0.01% | 31q | -1.3%-$715.2K |
| MILLENNIUM MANAGEMENT LLC | $49.4M | 650,775 | 0.02% | 8q | -8.7%-$4.7M |
| AQR CAPITAL MANAGEMENT LLC | $44.6M | 587,610 | 0.02% | 31q | +18.5%+$7.0M |
| Bank of New York Mellon Corp | $33.2M | 436,744 | 0.01% | 31q | -2.6%-$874.0K |
| PANAGORA ASSET MANAGEMENT INC | $32.1M | 423,256 | 0.10% | 31q | +9.7%+$2.8M |
| ProShare Advisors LLC | $28.7M | 377,605 | 0.04% | 31q | +2.9%+$796.4K |
| VANGUARD FIDUCIARY TRUST CO | $27.8M | 365,865 | 0.01% | 2q | +2.8%+$749.6K |
| Polaris Capital Management, LLC | $24.4M | 321,100 | 2.30% | 31q | -30.6%-$10.8M |
| BANK OF AMERICA CORP /DE/ | $23.6M | 311,061 | 0.00% | 31q | +59.9%+$8.8M |
| TWO SIGMA INVESTMENTS, LP | $23.3M | 306,839 | 0.02% | 6q | +82.0%+$10.5M |
| MORGAN STANLEY | $23.2M | 305,785 | 0.00% | 35q | +3.2%+$729.4K |
| Invesco Ltd. | $22.6M | 298,085 | 0.00% | 31q | -22.7%-$6.7M |
| UBS Group AG | $18.0M | 237,074 | 0.00% | 31q | +37.3%+$4.9M |
| MACKENZIE FINANCIAL CORP | $17.8M | 233,830 | 0.02% | 8q | +325.0%+$13.6M |
| Nuveen, LLC | $16.7M | 219,339 | 0.00% | 6q | +74.3%+$7.1M |
| Walleye Capital LLC | $15.2M | 200,778 | 0.05% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $14.9M | 221,655 | 0.00% | 31q | +0.8%+$113.6K |
| Cerity Partners LLC | $14.8M | 195,265 | 0.02% | 2q | -0.8%-$121.1K |
| RHUMBLINE ADVISERS | $13.2M | 173,495 | 0.01% | 31q | +3.1%+$398.6K |
| CSM Advisors, LLC | $12.6M | 165,542 | 0.27% | 5q | +25.7%+$2.6M |
| Kovack Advisors, Inc. | $10.7M | 138,943 | 0.51% | 31q | -0.9%-$96.3K |
| FRANKLIN RESOURCES INC | $10.6M | 140,127 | 0.00% | 10q | +5.6%+$565.9K |
| Bridgewater Associates, LP | $9.8M | 128,587 | 0.04% | 2q | -2.3%-$231.6K |
| Eldred Rock Partners, LLC | $9.7M | 127,460 | 2.08% | 10q | HELD |
| MALTESE CAPITAL MANAGEMENT LLC | $9.7M | 127,113 | 1.76% | 24q | -3.5%-$351.3K |
| PRINCIPAL FINANCIAL GROUP INC | $9.4M | 123,689 | 0.00% | 31q | +1.6%+$145.9K |
| JPMORGAN CHASE & CO | $9.2M | 118,422 | 0.00% | 31q | -6.8%-$670.7K |
| Swiss National Bank | $8.3M | 109,200 | 0.00% | 31q | -1.4%-$113.9K |
| DENALI ADVISORS LLC | $8.2M | 108,480 | 0.83% | 8q | -7.5%-$663.6K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $7.5M | 98,945 | 0.00% | 31q | -8.1%-$663.3K |
| D. E. Shaw & Co., Inc. | $7.0M | 91,727 | 0.00% | 2q | +186.6%+$4.5M |
| CITADEL ADVISORS LLC | $6.2M | 81,735 | 0.00% | 4q | -39.7%-$4.1M |
| VICTORY CAPITAL MANAGEMENT INC | $6.0M | 79,191 | 0.00% | 30q | +2.3%+$137.2K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $5.4M | 71,372 | 0.00% | 31q | +774.9%+$4.8M |
| Legal & General Group Plc | $5.3M | 69,876 | 0.00% | 31q | -2.3%-$122.3K |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | $4.9M | 64,538 | 0.01% | 31q | +0.8%+$39.6K |
| Schonfeld Strategic Advisors LLC | $4.8M | 63,529 | 0.02% | 3q | +850.5%+$4.3M |
| Elizabeth Park Capital Advisors, Ltd. | $4.7M | 62,487 | 3.28% | 4q | HELD |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $4.7M | 61,753 | 0.00% | 31q | +3.6%+$162.9K |
| CITIGROUP INC | $4.7M | 61,497 | 0.00% | 31q | +31.6%+$1.1M |
| VANGUARD ASSET MANAGEMENT, Ltd | $4.4M | 57,862 | 0.00% | 2q | +4.5%+$190.8K |
| DEUTSCHE BANK AG\ | $4.4M | 57,497 | 0.00% | 34q | +15.5%+$585.1K |
| MetLife Investment Management, LLC | $4.4M | 57,471 | 0.02% | 32q | +3.5%+$147.4K |
| GW&K Investment Management, LLC | $4.3M | 57,174 | 0.03% | 31q | -1.2%-$52.6K |
| Cresta Advisors, Ltd. | $4.3M | 56,886 | 1.55% | 16q | -2.9%-$127.4K |
| Retirement Systems of Alabama | $4.2M | 55,953 | 0.01% | 31q | -15.6%-$786.0K |
| Russell Investments Group, Ltd. | $4.1M | 53,447 | 0.00% | 31q | +30.4%+$945.5K |
| WELLS FARGO & COMPANY/MN | $4.0M | 52,394 | 0.00% | 31q | +148.7%+$2.4M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $3.9M | 51,636 | 0.00% | 31q | HELD |
| Vest Financial, LLC | $3.8M | 50,549 | 0.04% | 11q | -32.7%-$1.9M |
| Jump Financial, LLC | $3.8M | 50,335 | 0.03% | 2q | +428.6%+$3.1M |
| MERCER GLOBAL ADVISORS INC /ADV | $3.8M | 49,863 | 0.00% | 30q | +1.7%+$62.7K |
| NEW YORK STATE COMMON RETIREMENT FUND | $3.7M | 48,553 | 0.00% | 31q | +2.8%+$98.7K |
| SG Americas Securities, LLC | $3.6M | 47,691 | 0.00% | 6q | -53.4%-$4.2M |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | $3.6M | 46,906 | 0.02% | 9q | -56.7%-$4.7M |
| COMMONWEALTH EQUITY SERVICES, LLC | $3.5M | 46,293 | 0.00% | 31q | -3.2%-$114.5K |
| Siena Capital Partners GP, LLC | $3.5M | 45,725 | 0.84% | 3q | HELD |
| Squarepoint Ops LLC | $3.4M | 44,966 | 0.00% | 3q | -51.8%-$3.7M |
| AMERIPRISE FINANCIAL INC | $3.4M | 44,750 | 0.00% | 31q | -3.1%-$107.1K |
| Engineers Gate Manager LP | $3.4M | 44,118 | 0.04% | 4q | +132.5%+$1.9M |
| Point72 Asset Management, L.P. | $3.3M | 43,865 | 0.00% | 3q | -51.4%-$3.5M |
| VIRGINIA RETIREMENT SYSTEMS ET Al | $3.3M | 43,280 | 0.02% | 7q | +9.1%+$273.4K |
| Y-Intercept (Hong Kong) Ltd | $3.2M | 42,206 | 0.06% | 3q | -8.7%-$305.3K |
| Westover Capital Advisors, LLC | $3.2M | 41,517 | 0.52% | 14q | -2.8%-$91.7K |
| HARBOR CAPITAL ADVISORS, INC. | $2.8M | 37,484 | 0.19% | 10q | +2.0%+$55.0K |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | $2.7M | 36,105 | 0.05% | new | NEW |
| Horizon Investments, LLC | $2.6M | 34,057 | 0.03% | 5q | +188.4%+$1.7M |
| Holocene Advisors, LP | $2.5M | 33,394 | 0.01% | 2q | +128.9%+$1.4M |
| CAPITAL FUND MANAGEMENT S.A. | $2.5M | 33,251 | 0.01% | new | NEW |
| NISA INVESTMENT ADVISORS, LLC | $2.4M | 31,886 | 0.01% | 31q | +2.5%+$59.1K |
| HSBC HOLDINGS PLC | $2.4M | 31,760 | 0.00% | new | NEW |
| TUDOR INVESTMENT CORP ET AL | $2.4M | 31,104 | 0.00% | 2q | +18.4%+$367.0K |
| CANADA LIFE ASSURANCE Co | $2.4M | 31,083 | 0.00% | 27q | HELD |
| Allianz Asset Management GmbH | $2.2M | 28,559 | 0.00% | new | NEW |
| Rafferty Asset Management, LLC | $2.1M | 28,293 | 0.00% | 25q | -14.1%-$353.6K |
| ENVESTNET ASSET MANAGEMENT INC | $2.1M | 28,263 | 0.00% | 11q | +23.7%+$411.9K |
| Campbell & CO Investment Adviser LLC | $2.1M | 28,049 | 0.11% | 5q | +698.9%+$1.9M |
| DIVERSIFIED TRUST CO | $2.1M | 27,202 | 0.03% | 15q | +9.4%+$176.7K |
| Quantinno Capital Management LP | $2.0M | 26,722 | 0.00% | 11q | +4.2%+$82.7K |
| LAZARD ASSET MANAGEMENT LLC | $2.0M | 26,684 | 0.00% | 2q | +3.1%+$61.7K |
| BNP PARIBAS FINANCIAL MARKETS | $2.0M | 26,490 | 0.00% | 31q | -22.4%-$580.0K |
| Creative Planning | $2.0M | 26,401 | 0.00% | 9q | +70.1%+$826.6K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $2.0M | 26,363 | 0.00% | 6q | +21.0%+$346.9K |
Showing the largest 100 of 304 reported holders.
Tender offers and delisting
Schedules TO, 13E-3 and 14D-9 and Form 25 filed in the last 180 days. Price a share is read from the filing itself where it states one plainly; a marker means we found no figure we could stand behind, and the reason is on it.
| Filed | What | Filed by | Price a share | Source |
|---|---|---|---|---|
| 2026-10-16 | Delisting notice | itself | - | filing |
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-10-06 | 2026-10-06 | Delisting notice | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-21 | Norton Larry A | Director | Sold | 10,000 | $720.0K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 68 | $140.7M | 2,054,731 | 11 | 24 | 17 | 0.0% |
| Q2 2026 | 304 | $3.4B | 44,281,797 | 36 | 120 | 81 | 0.0% |
| Q1 2026 | 295 | $2.9B | 42,880,795 | 47 | 106 | 77 | 0.0% |
| Q4 2025 | 266 | $2.9B | 44,080,419 | 28 | 81 | 96 | 0.0% |
| Q3 2025 | 253 | $2.9B | 42,467,979 | 26 | 81 | 78 | 0.0% |
| Q2 2025 | 255 | $2.8B | 42,693,758 | 32 | 89 | 73 | 0.0% |
| Q1 2025 | 250 | $2.7B | 42,434,721 | 30 | 80 | 86 | 0.0% |
| Q4 2024 | 241 | $2.6B | 41,948,004 | 23 | 91 | 70 | 0.0% |
| Q3 2024 | 234 | $2.5B | 41,327,323 | 37 | 70 | 83 | 0.0% |
| Q2 2024 | 208 | $2.4B | 42,334,066 | 24 | 62 | 67 | 0.0% |
| Q1 2024 | 198 | $2.5B | 44,498,200 | 18 | 68 | 64 | 0.0% |
| Q4 2023 | 199 | $2.3B | 41,496,164 | 28 | 68 | 60 | 0.0% |
| Q3 2023 | 185 | $1.8B | 40,548,544 | 16 | 59 | 75 | 0.0% |
| Q2 2023 | 189 | $1.8B | 40,793,261 | 17 | 60 | 78 | 0.0% |
| Q1 2023 | 186 | $1.8B | 41,596,576 | 22 | 73 | 53 | 0.0% |
| Q4 2022 | 194 | $1.9B | 41,354,932 | 32 | 45 | 78 | 0.0% |
| Q3 2022 | 167 | $3.3B | 78,627,134 | 17 | 47 | 71 | 0.0% |
| Q2 2022 | 171 | $2.9B | 74,815,769 | 11 | 61 | 65 | 0.1% |
| Q1 2022 | 193 | $2.9B | 67,584,274 | 27 | 62 | 64 | 0.1% |
| Q4 2021 | 177 | $2.7B | 62,833,443 | 10 | 65 | 57 | 0.1% |
| Q3 2021 | 186 | $3.6B | 85,697,215 | 22 | 55 | 72 | 0.1% |
| Q2 2021 | 182 | $4.7B | 110,490,503 | 17 | 58 | 69 | 0.0% |
| Q1 2021 | 177 | $3.0B | 64,115,233 | 27 | 40 | 72 | 0.0% |
| Q4 2020 | 163 | $2.4B | 63,442,666 | 20 | 48 | 63 | 0.1% |
| Q3 2020 | 168 | $1.7B | 63,251,464 | 17 | 46 | 70 | 0.0% |
| Q2 2020 | 167 | $2.1B | 67,134,177 | 25 | 51 | 65 | 0.0% |
| Q1 2020 | 159 | $3.4B | 127,912,679 | 11 | 54 | 57 | 0.0% |
| Q4 2019 | 176 | $3.1B | 73,136,465 | 21 | 52 | 62 | 0.0% |
| Q3 2019 | 170 | $2.8B | 72,270,132 | 13 | 73 | 45 | 0.0% |
| Q2 2019 | 174 | $2.7B | 71,808,876 | 23 | 52 | 52 | 0.1% |
| Q1 2019 | 166 | $2.7B | 71,663,079 | 20 | 45 | 59 | 0.0% |
| Q4 2018 | 167 | $3.0B | 86,931,259 | 5 | 2 | 4 | 0.0% |
