StockData
IBOCTXSEState Commercial BanksFiscal year ends December 31

INTERNATIONAL BANCSHARES CORP

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026
$66.04−1.30 (-1.93%)

Close on Oct 19, 2026

Market cap
$4.11B
P/E (TTM)
9.9
Dividend yield
2.12%

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
71.2%
44M of 62M shares
Institutional holders
300
38 new, 26 sold out
Net institutional buying
1M
In Q2 2026
Insider trades, 12 months
0 buys · 1 sales
Net sold $720.00K

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
BlackRock, Inc.6,861,20111.10%13G (passive) amendmentDec 31, 2023
Vanguard Portfolio Management3,428,4345.51%13G (passive)Mar 31, 2026
Dimensional Fund Advisors LP3,206,2315.20%13G (passive) amendmentSep 30, 2025
American Century Investment Management, Inc.3,198,4055.20%13G (passive)Dec 31, 2025

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of IBOCValueChange% of portfolio
BlackRock, Inc.7,048,19411.33%$535.31M+403,1020.01%
Vanguard Portfolio Management LLC3,350,1985.39%$254.45M−51,4110.01%
Dimensional Fund Advisors LP3,258,6565.24%$247.50M+71,8360.04%
American Century Companies Inc3,128,4165.03%$237.60M−100,1620.11%
State Street Corp2,810,7764.52%$213.48M+185,8820.01%
Vanguard Capital Management LLC2,495,9094.01%$189.56M+21,3950.00%
Geode Capital Management, LLC1,573,3782.53%$119.51M+82,4810.01%
Boston Trust Walden Corp1,306,6052.10%$99.24M+218,9440.76%
T. Rowe Price Investment Management, Inc.1,161,1061.87%$88.19K−1,3760.06%
Goldman Sachs Group Inc1,035,7451.67%$78.66M+111,8260.01%
Azora Capital LP885,7681.42%$67.27M−426,9062.83%
Price T Rowe Associates Inc /Md/839,8501.35%$63.79K+295,0360.01%
First Trust Advisors LP820,8401.32%$62.34M−316,7320.04%
Northern Trust Corp750,8641.21%$57.03M+83,8900.01%
Reinhart Partners, LLC.749,7611.21%$56.95M+4,0651.30%
Tamar Securities, LLC721,2111.16%$54.78M−35,7295.12%
Norges Bank700,3741.13%$53.19MNew0.01%
Charles Schwab Investment Management Inc694,6161.12%$52.76M−9,4170.01%
Millennium Management LLC650,7751.05%$49.43M−61,6600.02%
Aqr Capital Management LLC587,6100.94%$44.63M+91,7440.02%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 202630044M71.2%38 / 12686 / 264M2M
Q1 202629443M68.9%52 / 11477 / 1910M4M
Q4 202526644M70.9%32 / 87102 / 183M2M
Q3 202525442M68.3%27 / 8781 / 262M2M
Q2 202525543M68.6%32 / 10079 / 262M2M
Q1 202525142M68.2%35 / 8788 / 253M2M
Q4 202424242M67.5%31 / 9975 / 243M2M
Q3 202423541M66.5%38 / 7288 / 108M3M
Q2 202420942M68.1%27 / 7072 / 152M4M
Q1 202419844M71.6%16 / 7668 / 174M1M
Q4 202320041M66.7%34 / 7567 / 163M2M
Q3 202318541M65.2%16 / 6079 / 192M2M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of IBOCValue% of fundAs of
iShares Core S&P Mid-Cap ETF1,849,5832.97%$140.48M0.11%Jun 30, 2026
Vanguard Total Stock Market Index Fund1,780,3712.86%$135.22M0.01%Jun 30, 2026
Avantis U.S. Small Cap Value ETF1,715,3852.76%$123.78M0.46%May 31, 2026
iShares Russell 2000 ETF1,439,9662.32%$109.37M0.13%Jun 30, 2026
Vanguard Small-Cap Index Fund1,284,2292.06%$97.54M0.05%Jun 30, 2026
Vanguard Small-Cap Value Index Fund813,0181.31%$61.75M0.09%Jun 30, 2026
First Trust SMID Cap Rising Dividend Achievers ETF642,3951.03%$48.79M0.43%Jun 30, 2026
Vanguard Extended Market Index Fund619,1161.00%$47.02M0.05%Jun 30, 2026
Fidelity Small Cap Index Fund605,5970.97%$46.35M0.14%Jul 31, 2026
U.S. Targeted Value Portfolio566,8080.91%$43.38M0.26%Jul 31, 2026
Small Cap Value Fund545,0000.88%$41.39M1.36%Jun 30, 2026
State Street(R) SPDR(R) S&P(R) Regional Banking ETF483,8280.78%$36.75M0.78%Jun 30, 2026
T. Rowe Price Small-Cap Value Fund, Inc.476,2050.77%$36.17M0.34%Jun 30, 2026
iShares Russell 2000 Value ETF473,1990.76%$35.94M0.25%Jun 30, 2026
U.S. Small Cap Portfolio435,1300.70%$33.30M0.17%Jul 31, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Dennis E. NixonCEO, Director1,832,7532.95%Nov 14, 2024
Judith I. WawroskiTREASURER/PAO12,0470.02%Feb 10, 2026
Larry A. NortonDirector112,8470.18%May 22, 2026
Antonio R. Sanchez JrDirector, 10% owner3,494,2385.62%Aug 15, 2025

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Larry A. Norton
Director
May 21, 2026Sale−10,000$72.00$720.00K111,917
Judith I. Wawroski
TREASURER/PAO
Feb 6, 2026Option exercise+875$38.30$33.51K12,047
Judith I. Wawroski
TREASURER/PAO
Feb 6, 2026Option exercise+300$16.84$5.05K12,347
Judith I. Wawroski
TREASURER/PAO
Sep 5, 2025Option exercise+600$39.33$23.60K11,772
Judith I. Wawroski
TREASURER/PAO
Sep 5, 2025Returned to company−600$71.58$42.95K11,172
Antonio R. Sanchez Jr
Director, 10% owner
Aug 15, 2025Sale−40,000$68.12$2.72M447,439
Antonio R. Sanchez Jr
Director, 10% owner
Aug 14, 2025Sale−80,000$69.83$5.59M487,439
Judith I. Wawroski
TREASURER/PAO
Jun 5, 2025Option exercise+700$38.30$26.81K10,872
Judith I. Wawroski
TREASURER/PAO
Jun 5, 2025Option exercise+300$16.84$5.05K11,172
Antonio R. Sanchez Jr
Director, 10% owner
Dec 17, 2024Gift−9,000––1,805,554
Antonio R. Sanchez Jr
Director, 10% owner
Dec 17, 2024Gift+9,000––9,000
Dennis E. Nixon
CEO, Director
Nov 13, 2024Sale−65,185$71.47$4.66M900,000
Dennis E. Nixon
CEO, Director
Nov 12, 2024Sale−34,815$72.18$2.51M965,185
Judith I. Wawroski
TREASURER/PAO
Aug 13, 2024Option exercise+500$38.30$19.15K10,172
Antonio R. Sanchez Jr
Director, 10% owner
May 22, 2024Sale−49,888$58.39$2.91M1,232,245
Antonio R. Sanchez Jr
Director, 10% owner
May 21, 2024Sale−30,112$59.75$1.80M1,282,133
Antonio R. Sanchez Jr
Director, 10% owner
Mar 11, 2024Sale−40,000$54.22$2.17M1,312,245
Dalia F. Martinez
VICE PRESIDENT
Jan 23, 2024Tax withholding−1,969$54.39$107.09K8,845
Dalia F. Martinez
VICE PRESIDENT
Jan 23, 2024Option exercise+5,000$21.42$107.10K10,814
Antonio R. Sanchez Jr
Director, 10% owner
Dec 8, 2023Sale−50,000$48.86$2.44M567,439
Antonio R. Sanchez Jr
Director, 10% owner
Dec 8, 2023Sale−25,000$48.86$1.22M1,814,554
Antonio R. Sanchez Jr
Director, 10% owner
Dec 7, 2023Sale−50,000$49.06$2.45M617,439
Antonio R. Sanchez Jr
Director, 10% owner
Dec 7, 2023Sale−25,000$49.06$1.23M1,839,554
Antonio R. Sanchez Jr
Director, 10% owner
Nov 28, 2023Sale−15,000$44.63$669.45K1,352,245
Antonio R. Sanchez Jr
Director, 10% owner
Nov 27, 2023Sale−45,000$44.79$2.02M1,367,245
Antonio R. Sanchez Jr
Director, 10% owner
Nov 16, 2023Sale−30,000$46.62$1.40M1,412,245
Antonio R. Sanchez Jr
Director, 10% owner
Nov 15, 2023Sale−30,000$47.77$1.43M1,442,245
Antonio R. Sanchez Jr
Director, 10% owner
Oct 4, 2023Other−10,000––1,472,245
Judith I. Wawroski
TREASURER/PAO
Aug 7, 2023Option exercise+175$16.84$2.95K9,672
Judith I. Wawroski
TREASURER/PAO
Aug 7, 2023Option exercise+200$38.30$7.66K9,497
Antonio R. Sanchez Jr
Director, 10% owner
Mar 15, 2023Other−50,000––1,482,245
Diana G. Zuniga
Director
Feb 24, 2023Buy+30$46.70$1.40K13,003
Dennis E. Nixon
CEO, Director
Feb 7, 2023Gift−5,792––648,382
Antonio R. Sanchez Jr
Director, 10% owner
Nov 29, 2022Sale−50,000$51.78$2.59M667,439
Antonio R. Sanchez Jr
Director, 10% owner
Nov 28, 2022Sale−50,000$52.01$2.60M717,439
Dennis E. Nixon
CEO, Director
Nov 3, 2022Gift−3,355––654,174
Antonio R. Sanchez Jr
Director, 10% owner
Oct 5, 2022Other−100,000––1,532,245
Dennis E. Nixon
CEO, Director
Aug 30, 2022Gift−807––657,529
Dennis E. Nixon
CEO, Director
Aug 30, 2022Gift+807––284,371
Diana G. Zuniga
Director
Aug 25, 2022Buy+30$43.32$1.30K12,973
Judith I. Wawroski
TREASURER/PAO
Aug 11, 2022Option exercise+488$38.30$18.69K9,210
Judith I. Wawroski
TREASURER/PAO
Aug 11, 2022Option exercise+87$16.84$1.47K9,297
Antonio R. Sanchez Jr
Director, 10% owner
Aug 4, 2022Other−14,000––1,632,245
Dennis E. Nixon
CEO, Director
Feb 25, 2022Gift−799––658,336
Dennis E. Nixon
CEO, Director
Feb 25, 2022Gift+799––283,564
Diana G. Zuniga
Director
Feb 24, 2022Buy+33$39.47$1.30K12,943
Judith I. Wawroski
TREASURER/PAO
Feb 8, 2022Option exercise+487$38.30$18.65K8,722
Judith I. Wawroski
TREASURER/PAO
Feb 8, 2022Option exercise+487$38.30$18.65K8,722
Dennis E. Nixon
CEO, Director
Sep 16, 2021Gift−400,000––659,135
Dennis E. Nixon
CEO, Director
Sep 16, 2021Other+400,000––1,400,000
Dennis E. Nixon
CEO, Director
Sep 9, 2021Gift−1,000,000––1,059,135
Dennis E. Nixon
CEO, Director
Sep 9, 2021Other+1,000,000––1,000,000
Dennis E. Nixon
CEO, Director
Aug 30, 2021Gift−797––2,059,135
Dennis E. Nixon
CEO, Director
Aug 30, 2021Other+797––282,765
Dennis E. Nixon
CEO, Director
Jul 7, 2021Gift−6,498––2,059,932
Antonio R. Sanchez Jr
Director, 10% owner
Mar 11, 2021Other−130,000––1,646,245
Judith I. Wawroski
TREASURER/PAO
Mar 4, 2021Option exercise+750$21.42$16.07K8,235
Dennis E. Nixon
CEO, Director
Mar 1, 2021Gift+755––281,968
Dennis E. Nixon
CEO, Director
Mar 1, 2021Gift−755––2,066,430
Dennis E. Nixon
CEO, Director
Jan 6, 2021Gift+105,000––281,213

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.

Planned insider sales

Notices of proposed sale filed on Form 144 before shares are sold

SellerFiledSharesMarket valuePlanned saleAcquired through
Properties LTD Norton
Board Member
May 21, 202610,000$720.00KMay 21, 2026OPEN MARKET PURCHASE
Antonio R. Sanchez Jr
Director
Nov 21, 2025100,000$6.64MNov 21, 2025Annuity Payment
Antonio R. Sanchez Jr
Director, 10% Stockholder
Aug 14, 2025120,000$8.50MAug 14, 2025Partnership Contribution
Nixon Dennis
Director, President and Chief Executive Officer
Nov 14, 2024100,000$7.17MNov 12, 2024Transfer from Dennis E. Nixon, who originally acquired the shares from the Issuer upon the exercise of various stock options and stock dividends paid by the Issuer
Antonio R. Sanchez Jr
Director, 10% Stockholder
Aug 22, 2024100,000$6.04MAug 22, 2024Annuity Payment
Antonio R. Sanchez Jr
Director, 10% Stockholder
May 21, 202480,000$4.79MMay 21, 2024Gift
Antonio R. Sanchez Jr
Director, 10% Stockholder
Mar 11, 202440,000$2.16MMar 11, 2024Gift
Antonio R. Sanchez Jr
Director, 10% Stockholder
Dec 7, 2023150,000$7.35MDec 7, 2023Partnership Contribution
Antonio R. Sanchez Jr
Director, 10% Stockholder
Nov 21, 202360,000$2.73MNov 21, 2023Gift
Antonio R. Sanchez Jr
Insider
Nov 14, 202360,000$2.65MNov 14, 2023GIFT