International Bancshares Corp

IBOC

Exchange: Nasdaq
Industry: State Commercial Banks
SEC CIK: 0000315709

SEC filings (opens in a new tab)

No open-market purchases or sales by International Bancshares Corp insiders were filed in the last 90 days; 301 institutions reported holding it in 13F filings for Q2 2026, worth $3.36B in total; no superinvestor holds it.

Q3 2025 vs. Q2 2025

How the institutions holding International Bancshares Corp changed between Q2 2025 and Q3 2025.

All holders in Q3 2025 All holders in Q2 2025

13F holders of IBOC: Q2 2025 compared with Q3 2025
Measure	Q2 2025	Of which not filed for Q3 2025	Q3 2025	Change
Holders	255	3	254	+2
Shares	42.7M	680.7K	42.3M	+257.3K (+0.6%)
Value	$2.84B	$45.3M	$2.90B	+$109.7M (+3.9%)

3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (27)

Institutions that held International Bancshares Corp at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to IBOC in Q3 2025
Institution	Shares	Value	% of portfolio
Freestone Grove Partners LP	266,620	$18.3M	0.14%
Elizabeth Park Capital Advisors, Ltd.	51,087	$3.51M	2.84%
Exencial Wealth Advisors, LLC	25,141	$1.73M	0.06%
HRT Financial LP	20,004	$1.38M	0.01%
Citadel Advisors LLC	19,391	$1.33M	0.00%
Inceptionr LLC	8,186	$562.8K	0.14%
Pacer Advisors, Inc.	7,120	$489.5K	0.00%
Two Sigma Advisers, LP	7,000	$481.3K	0.00%
ISAM Funds (UK) Ltd	6,332	$435.3K	0.09%
Engineers Gate Manager LP	6,175	$424.5K	0.00%
CIBC Bancorp USA Inc.	5,816	$399.9K	0.00%
Sequoia Financial Advisors, LLC	3,817	$262.4K	0.00%
SRS Capital Advisors, Inc.	3,647	$250.7K	0.00%
Centiva Capital, LP	3,410	$234.4K	0.02%
Two Sigma Securities, LLC	3,244	$223.0K	0.03%
Royce & Associates LP	3,082	$211.9K	0.00%
W.G. Shaheen & Associates DBA Whitney & Co	3,000	$206.3K	0.02%
Wealth Enhancement Advisory Services, LLC	2,956	$201.6K	0.00%
Aquatic Capital Management LLC	1,300	$89.4K	0.00%
Quadrant Capital Group LLC	283	$19.5K	0.00%
Root Financial Partners, LLC	214	$14.7K	0.00%
Simplex Trading, LLC	106	$7.00K	0.00%
Wealthspire Advisors, LLC	97	$6.67K	0.00%
Quarry LP	95	$6.53K	0.00%
Quent Capital, LLC	19	$1.31K	0.00%
Rockefeller Capital Management L.P.	10	$709	0.00%
Cloud Capital Management, LLC	9	$0	0.00%

Sold out (25)

Institutions that held International Bancshares Corp at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of IBOC in Q3 2025
Institution	Shares, Q2 2025	Value, Q2 2025
Dark Forest Capital Management LP	35,019	$2.33M
Wellington Management Group LLP	25,391	$1.69M
D. E. Shaw & Co., Inc.	16,785	$1.12M
XTX Topco Ltd	15,775	$1.05M
Beacon Pointe Advisors, LLC	14,777	$983.6K
Schonfeld Strategic Advisors LLC	14,376	$956.9K
AXA S.A.	10,557	$702.7K
Readystate Asset Management LP	10,516	$699.9K
Convergence Financial, LLC	7,442	$495.3K
Ontario Teachers Pension Plan Board	7,389	$491.8K
Summit Global Investments	5,249	$349.0K
Capstone Investment Advisors, LLC	5,232	$348.2K
SummitTX Capital, L.P.	4,248	$282.7K
Guggenheim Capital LLC	4,066	$270.6K
Renaissance Technologies LLC	3,700	$246.3K
Monument Capital Management	3,483	$231.8K
M&T Bank Corp	3,014	$200.1K
Raymond James Financial Inc	1,911	$127.2K
Skopos Labs, Inc.	141	$9.38K
Peterson Wealth Services	16	$1.06K
NewSquare Capital LLC	8	$532
UMA Financial Services, Inc.	7	$466
Bell Investment Advisors, Inc	7	$466
Twin Peaks Wealth Advisors, LLC	3	$213
LGT Financial Advisors LLC	3	$200

Not filed for Q3 2025 yet (3)

Institutions that held International Bancshares Corp at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IBOC in Q2 2025 that haven't filed for Q3 2025
Institution	Shares, Q2 2025	Value, Q2 2025
Norges Bank	674,019	$44.9M
CIBC World Markets Corp	6,723	$447.5K
Parkworth Wealth Management, Inc.	3	$200