International Bancshares Ownership | Who Owns International Bancshares?

International Bancshares Ownership Summary

International Bancshares is owned by 71.71% institutional investors, 13.08% insiders, and 15.20% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 11.28% of IBOC shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 2.99% of its assets in International Bancshares shares.

IBOC Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	International Bancshares	71.71%	13.08%	15.20%
Sector	Financial Services Stocks	493.55%	13.79%	-407.34%
Industry	Regional Banks Stocks	56.79%	12.57%	30.64%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	7.05M	11.28%	$535.31M
Blackrock	6.76M	10.88%	$386.83M
Vanguard group	6.22M	10.01%	$413.20M
Dimensional fund advisors lp	3.26M	5.21%	$247.50M
American century companies	3.13M	5.01%	$237.60M
State street	2.81M	4.50%	$213.48M
Vanguard capital management	2.50M	3.99%	$189.56M
Geode capital management	1.57M	2.52%	$119.51M
Boston trust walden	1.31M	2.09%	$99.24M
T. rowe price investment management	1.16M	1.86%	$88.19M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Tamar securities	721.21K	5.12%	$54.78M
Elizabeth park capital advisors	62.49K	3.28%	$4.75M
Azora capital lp	885.77K	2.83%	$67.27M
Polaris capital management	321.10K	2.30%	$24.39M
Eldred rock partners	127.46K	2.08%	$9.68M
Maltese capital management	127.11K	1.76%	$9.65M
Cresta advisors	56.89K	1.55%	$4.32M
Reinhart partners	749.76K	1.30%	$56.95M
Siena capital partners gp	45.73K	0.84%	$3.47M
Denali advisors	108.48K	0.83%	$8.24M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	700.37K	0.01%	700.37K
Sixth street partners management company	694.62K	0.01%	694.62K
Blackrock funding, inc. /de	7.05M	0.01%	403.10K
Price t rowe associates inc /md/	839.85K	0.01%	295.04K
Boston trust walden	1.31M	0.76%	218.94K

Top Sellers

Holder	Shares	% Assets	Change
Azora capital lp	885.77K	2.83%	-426.91K
First trust advisors lp	820.84K	0.04%	-316.73K
Sol capital management	-	-	-200.26K
Polaris capital management	321.10K	2.30%	-141.90K
Qube research	-	-	-138.11K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	700.37K	0.01%	700.37K	$53.19M
Sixth street partners management company	694.62K	0.01%	694.62K	$52.76M
Walleye capital	200.78K	0.05%	200.78K	$15.25M
Capital fund management	33.25K	0.01%	33.25K	$2.53M
North reef capital management lp	25.00K	0.07%	25.00K	$1.90M

Sold Out

Holder	Change
Toronto dominion bank	-1.00
Twin peaks wealth advisors	-3.00
Curio wealth	-3.00
Simplex trading	-4.00
Tfo-tdc	-4.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2026	297	1.37%	44,824,010	4.63%	71	1.52%	161	-3.59%	86	13.16%
Mar 31, 2026	150	-43.40%	15,669,429	-63.94%	25	0.51%	77	-34.75%	36	-64.71%
Dec 31, 2025	180	-28.85%	31,454,350	-25.63%	50	1.09%	67	-42.24%	73	-6.41%
Sep 30, 2025	242	-2.02%	42,208,786	3.26%	67	1.57%	113	-10.32%	75	-3.85%
Jun 30, 2025	251	1.21%	42,645,516	4.42%	68	1.59%	130	7.44%	78	-10.34%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Mid-Cap ETF	1.86M	2.99%	57.00
Vanguard MStar Total Stk Mkt Idx Invest	1.79M	2.87%	6.92K
Avantis US Small Cap Value ETF	1.78M	2.87%	1.63K
Vanguard Morn Total Stk Mkt Idx Investor	1.78M	2.86%	-4.96K
Vanguard Total Stock Mkt Idx Inv	1.78M	2.86%	-4.96K
Vanguard US Total Market Shares ETF	1.77M	2.85%	1.22K
Schwab US Dividend Equity ETF™	1.67M	2.69%	9.07K
iShares Russell 2000 ETF	1.44M	2.31%	-25.54K
Vanguard Small Cap Index	1.29M	2.07%	2.63K
Vanguard MStar Small Cap Value Index	817.10K	1.31%	2.67K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 21, 2026	Norton Larry A	-	Sell	$720.00K
Aug 14, 2025	SANCHEZ ANTONIO R JR		Sell	$5.59M
Aug 15, 2025	SANCHEZ ANTONIO R JR		Sell	$2.72M
Nov 12, 2024	NIXON DENNIS E	CEO	Sell	$2.51M
Nov 13, 2024	NIXON DENNIS E	CEO	Sell	$4.66M

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	1
2026 Q1	-	-
2025 Q3	-	2
2025 Q2	-	-
2024 Q4	-	2

IBOC Ownership FAQ

Who Owns International Bancshares?

International Bancshares shareholders are primarily institutional investors at 71.71%, followed by 13.08% insiders and 15.21% retail investors. The average institutional ownership in International Bancshares's industry, Regional Banks Stocks, is 56.79%, which International Bancshares exceeds.

Who owns the most shares of International Bancshares?

International Bancshares’s largest shareholders are Blackrock funding, inc. /de (7.05M shares, 11.28%), Blackrock (6.76M shares, 10.88%), and Vanguard group (6.22M shares, 10.01%). Together, they hold 32.16% of International Bancshares’s total shares outstanding.

Does Blackrock own International Bancshares?

Yes, BlackRock owns 10.88% of International Bancshares, totaling 6.76M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 386.83M$. In the last quarter, BlackRock increased its holdings by 26.72K shares, a 0.40% change.

Who is International Bancshares’s biggest shareholder by percentage of total assets invested?

Tamar securities is International Bancshares’s biggest shareholder by percentage of total assets invested, with 5.12% of its assets in 721.21K International Bancshares shares, valued at 54.78M$.

Who is the top mutual fund holder of International Bancshares shares?

iShares Core S&P Mid-Cap ETF is the top mutual fund holder of International Bancshares shares, with 2.99% of its total shares outstanding invested in 1.86M International Bancshares shares.

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