International Bancshares Corp (IBOC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

62,284,483Shares Outstanding

346,750Shares held by institutions

$25,160,180Value of institutional holdings

67.91%Institutional ownership %

1.64%Shares Changed QoQ

249No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

International Bancshares Corp (NASDAQ:IBOC) currently has 249 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

Institutional ownership in International Bancshares edged up to 67.9% in December 2025, compared to 67.9% in September 2025.
The company experienced a 1.64% quarterly change in institutional shares held, alongside an increase of 4.18% in total owners annually.
A review of institutional activity for International Bancshares shows 110 of 249 filers increasing their positions, while 96 reduced their stake, and 43 remained unchanged.
The aggregate institutional position in International Bancshares now stands at 42.29Mn shares as of December 2025, after investors increased their holdings (up by 683.75K shares quarter on quarter which is up 320.06K shares year over year).
With 6.71Mn shares, BlackRock, Inc. commands the largest institutional position in International Bancshares as of December 31, 2025, equating to 10.77% of the company.
Among the most significant buyers of International Bancshares during December 2025 were NORGES BANK (686.30K), Azora Capital LP (395.98K), AMERICAN CENTURY COMPANIES INC (108.18K), FIRST TRUST ADVISORS LP (93.61K), REINHART PARTNERS, LLC. (72.03K).
Leading sellers of International Bancshares stock in December 2025 included T. Rowe Price Investment Management, Inc. (420.98K), Freestone Grove Partners LP (175.90K), AQR CAPITAL MANAGEMENT LLC (113.35K), JANE STREET GROUP, LLC (84.36K), VANGUARD GROUP INC (83.80K).
The top 10 institutional holders of International Bancshares for the quarter ending December 2025 included BlackRock, Inc. (6.71Mn), VANGUARD GROUP INC (6.22Mn), AMERICAN CENTURY COMPANIES INC (3.20Mn), DIMENSIONAL FUND ADVISORS LP (3.18Mn), STATE STREET CORP (2.46Mn), CHARLES SCHWAB INVESTMENT MANAGEMENT INC (2.28Mn), Azora Capital LP (1.52Mn), GEODE CAPITAL MANAGEMENT, LLC (1.44Mn), FIRST TRUST ADVISORS LP (1.36Mn), Boston Trust Walden Corp (1.19Mn).

249 Institutional Holders

346,750 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	6,709,927	-5,613	-0.08%	$445,807,565.00
VANGUARD GROUP INC	31 Dec, 2025	6,219,187	-83,799	-1.33%	$413,202,784.00
AMERICAN CENTURY COMPANIES INC	31 Dec, 2025	3,198,405	108,182	3.50%	$212,502,028.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	3,177,352	-28,879	-0.90%	$211,105,205.00
STATE STREET CORP	31 Dec, 2025	2,463,011	-13,410	-0.54%	$163,642,451.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	2,277,879	45,980	2.06%	$151,342,281.00
Azora Capital LP	31 Dec, 2025	1,524,345	395,984	35.09%	$101,277,482.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,435,471	9,496	0.67%	$95,385,162.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	1,364,148	93,610	7.37%	$90,633,993.00
Boston Trust Walden Corp	31 Dec, 2025	1,191,816	-57,583	-4.61%	$79,184,259.00
REINHART PARTNERS, LLC.	31 Dec, 2025	739,340	72,025	10.79%	$49,122,844.00
Tamar Securities, LLC	31 Dec, 2025	738,357	5,521	0.75%	$49,056,421.00
NORGES BANK	31 Dec, 2025	686,300	686,300	0.00%	$45,597,772.00
NORTHERN TRUST CORP	31 Dec, 2025	646,450	-46,813	-6.75%	$42,950,138.00
T. Rowe Price Investment Management, Inc.	31 Dec, 2025	600,375	-420,981	-41.22%	$39,889.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	590,291	48,699	8.99%	$39,218,917.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	553,612	-49,962	-8.28%	$36,781,981.00
ProShare Advisors LLC	31 Dec, 2025	502,770	-13,517	-2.62%	$33,404,038.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	501,566	-113,352	-18.43%	$33,324,062.00
Polaris Capital Management, LLC	31 Dec, 2025	477,304	-68,700	-12.58%	$31,712,078.00

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