NASDAQ:IBOC

International Bancshares Stock Insider Trading

Financial Services > Banks - Regional

Buy IBOC

*Your capital is at risk

$75.11

+1.55 (+2.11%)

At Close: Jun 22, 2026

International Bancshares Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -99.29. In total, the insiders bought 70.54K and sold 1.79M IBOC shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-99.29
● Buy	70.54K shares
● Sell	1.79M shares
47% Buy Activity Moderate Negative Correlation
Sell Signal High Confidence May 21, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -99.29. Partially supported by a negative historical correlation. Confidence increased due to high data reliability score of 90.

Historical Insider Trades

Date	Type	Person	Role	Amount
Dec 08, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	25 000 Value: $1.22M
Dec 07, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	25 000 Value: $1.23M
Dec 07, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	50 000 Value: $2.45M
Dec 07, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	50 000 Value: $2.45M
Dec 07, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	25 000 Value: $1.23M
Nov 28, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	15 000 Value: $669.5K
Nov 28, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	15 000 Value: $669.5K
Nov 27, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	45 000 Value: $2.02M
Nov 27, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	45 000 Value: $2.02M
Nov 16, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	30 000 Value: $1.40M
Nov 16, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	30 000 Value: $1.40M
Nov 15, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	30 000 Value: $1.43M
Nov 15, 2023 Sell	Common Stock S-Sale	Sanchez Antonio R Jr	Director	30 000 Value: $1.43M
Oct 04, 2023 Sell	Common Stock J-Other	Sanchez Antonio R Jr	Director	10 000 Value: $0
Oct 04, 2023 Sell	Common Stock J-Other	Sanchez Antonio R Jr	Director	10 000 Value: $0
Aug 07, 2023 Buy	Common Stock M-Exempt	Wawroski Judith I Treasurer/pao	Officer	175 Value: $3K
Aug 07, 2023 Buy	Common Stock M-Exempt	Wawroski Judith I Treasurer/pao	Officer	200 Value: $8K
Aug 07, 2023 Buy	EMPLOYEE STOCK OPTION (RIGHT TO BUY) M-Exempt	Wawroski Judith I Treasurer/pao	Officer	200 Value: $8K
Aug 07, 2023 Buy	EMPLOYEE STOCK OPTION (RIGHT TO BUY) M-Exempt	Wawroski Judith I Treasurer/pao	Officer	175 Value: $3K
Aug 07, 2023 Buy	EMPLOYEE STOCK OPTION (RIGHT TO BUY) M-Exempt	Wawroski Judith I Treasurer/pao	Officer	175 Value: $3K
Aug 07, 2023 Buy	EMPLOYEE STOCK OPTION (RIGHT TO BUY) M-Exempt	Wawroski Judith I Treasurer/pao	Officer	200 Value: $8K
Aug 07, 2023 Buy	Common Stock M-Exempt	Wawroski Judith I Treasurer/pao	Officer	200 Value: $8K
Aug 07, 2023 Buy	Common Stock M-Exempt	Wawroski Judith I Treasurer/pao	Officer	175 Value: $3K
Mar 15, 2023 Sell	Common Stock J-Other	Sanchez Antonio R Jr	Director	50 000 Value: $0
Mar 15, 2023 Sell	Common Stock J-Other	Sanchez Antonio R Jr	Director	50 000 Value: $0

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks