Groowe Groowe BETA / Newsroom
⏱ News is delayed by 15 minutes. Sign in for real-time access. Sign in

Form 8-K

sec.gov

8-K — INTERNATIONAL BANCSHARES CORP

Accession: 0001104659-26-056853

Filed: 2026-05-07

Period: 2026-05-07

CIK: 0000315709

SIC: 6022 (STATE COMMERCIAL BANKS)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — iboc-20260507x8k.htm (Primary)

EX-99 (iboc-20260507xex99.htm)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: iboc-20260507x8k.htm · Sequence: 1

INTERNATIONAL BANCSHARES CORPORATION_May 7, 2026

0000315709false00003157092026-05-072026-05-07

​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

​

​

FORM 8-K

​

CURRENT REPORT

Pursuant to Section 13 or 15 (d) of The Securities Exchange Act of 1934

​

Date of Report (Date of earliest event reported): May 7, 2026

​

​

INTERNATIONAL BANCSHARES CORPORATION

(Exact name of registrant as specified in its charter)

​

-

​

​

​

​

Texas

​

000-9439

​

74-2157138

(State or other jurisdiction

​

(Commission File

​

(IRS Employer

of incorporation)

​

Number)

​

Identification No.)

​

​

​

​

​

​

​

​

1200 San Bernardo, Laredo, Texas

​

78040-1359

​

​

(Address of principal executive offices)

​

(Zip Code)

​

​

​

Registrant's telephone number, including area code (956) 722-7611

​

​

None

(Former name or former address, if changed since last report)

​

​

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2.below):

​

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

​

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

​

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

​

☐ Pre-commencement communications pursuant to Rule 13e-4 (c ) under the Exchange Act (17 CFR 240.13e-4 (c))

​

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

​

Emerging growth company ☐

​

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

​

​

​

​

​

​

​

Title of Each Class:

​

Trading Symbol (s):

​

Name of each exchange on which registered:

​

Common Stock, $1.00 par value

​

IBOC

​

The Nasdaq Stock Market

​

​

​

​

​

​

Item 2.02          Results of Operations and Financial Condition.

On May 7, 2026, International Bancshares Corporation issued a news release announcing net income for the three months ended March 31, 2026.  The news release, attached hereto and filed herewith as Exhibit 99, is incorporated by reference.

All of the information furnished in Item 2.02 of this report, including the accompanying exhibits, is also intended to be included under “Item 7.01 – Regulation Fair Disclosure” and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, is not subject to the liabilities of that section and shall not be incorporated by reference in any filing under the Securities Act of 1933, as amended.

Item 9.01          Financial Statements and Exhibits

​

​

EXHIBIT INDEX

Exhibit Number

​ ​ ​

Description

​

​

​

99

​

News Release of International Bancshares Corporation dated May 7, 2026

104

​

Cover Page Interactive Data File (embedded within the Inline XBRL document)

​

​

​

2

​

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

​

​

​

​

​

​

INTERNATIONAL BANCSHARES CORPORATION

​

​

​

​

​

​

​

By:

/s/ Dennis E. Nixon

​

​

DENNIS E. NIXON, President

​

​

and Chief Executive Officer

​

Date: May 7, 2026

​

​

3

EX-99

EX-99

Filename: iboc-20260507xex99.htm · Sequence: 2

EXHIBIT 99

​

Contact:

Judith Wawroski,

Chief Financial Officer

International Bancshares Corporation

(956) 722-7611

​

FOR IMMEDIATE RELEASE:

​

IBC Reports Strong Earnings for the First Quarter of 2026

LAREDO, Texas—(BUSINESS WIRE)— May 7, 2026—International Bancshares Corporation (NASDAQ:IBOC), one of the largest independent bank holding companies in Texas, today reported net income for the three months ended March 31, 2026 of $102.2 million or $1.64 diluted earnings per common share ($1.64 per share basic) compared to $96.9 million or $1.56 diluted earnings per common share ($1.56 per share basic), which represents an increase of 5.5% in net income and 5.1% in diluted earnings per share over the corresponding period of 2025.

​

Net income for the first quarter of 2026 continued to be positively affected by interest earned on our investment and loan portfolios driven primarily by both an increase in the size of those portfolios and the current rate environment. Net interest income was affected by a decrease in interest expense, primarily driven by a redistribution in rates paid on deposits. We continue to closely monitor rates paid on deposits to remain competitive to grow and retain deposits.

​

“We are pleased with the consistency and sustainability of our industry-leading financial results in the first quarter of 2026. As we move through the rest of 2026, we will remain focused and vigilant on delivering superior customer service, continued execution of our long-standing practices of balance sheet, asset, liability and liquidity management, strong cost controls, and evaluating processes for efficiencies across our organization using, among other things, AI initiatives.  We believe that with continued focus on these established and long-standing practices, we will continue to deliver industry-leading financial results,” said Dennis E. Nixon, President and CEO.

​

Total assets at March 31, 2026, were approximately $16.8 billion compared to approximately $16.6 billion at December 31, 2025. Total net loans were approximately $9.5 billion at March 31, 2026, compared to approximately $9.3 billion at December 31, 2025. Deposits were approximately $12.6 billion at March 31, 2026, compared to approximately $12.4 billion at December 31, 2025.

IBC is a multi-bank financial holding company headquartered in Laredo, Texas, with 165 facilities and 247 ATMs serving 75 communities in Texas and Oklahoma.

“Safe Harbor” statement under the Private Securities Litigation Reform Act of 1995: The statements contained in this release which are not historical facts contain forward looking information with respect to plans, projections or future performance of IBC and its subsidiaries, the occurrence of which involve certain risks and uncertainties detailed in IBC’s filings with the Securities and Exchange Commission.

Copies of IBC’s SEC filings and Annual Report (as an exhibit to the 10-K) may be downloaded from the SEC filings site located at http://www.sec.gov/edgar.shtml.

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 7

v3.26.1

Document and Entity Information

May 07, 2026

Document and Entity Information

Document Type

8-K

Document Period End Date

May 07, 2026

Entity Registrant Name

INTERNATIONAL BANCSHARES CORPORATION

Entity Incorporation, State or Country Code

TX

Entity File Number

000-9439

Entity Tax Identification Number

74-2157138

Entity Address, Address Line One

1200 San Bernardo

Entity Address, City or Town

Laredo

Entity Address, State or Province

TX

Entity Address, Postal Zip Code

78040-1359

City Area Code

956

Local Phone Number

722-7611

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Title of 12(b) Security

Common Stock

Trading Symbol

IBOC

Security Exchange Name

NASDAQ

Entity Emerging Growth Company

false

Entity Central Index Key

0000315709

Amendment Flag

false

X

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration