International Bancshares Corporation
International Bancshares Corporation (IBOC) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · IBOC · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
3
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
International Bancshares Corporation insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
IBOC insider buying and selling by quarter
IBOC insider selling · IBOC insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · IBOC ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
IBOC executive sell shares · IBOC board member insider trading · IBOC insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| May 21, 2026 | Norton Larry A Director | Sale | 10,000 | $720K | Form 4 |
| Feb 6, 2026 | WAWROSKI JUDITH I TREASURER/PAO | Option | 300 | $5K | Form 4 |
| Feb 6, 2026 | WAWROSKI JUDITH I TREASURER/PAO | Option | 875 | $34K | Form 4 |
| Sep 5, 2025 | WAWROSKI JUDITH I TREASURER/PAO | Option | 600 | $24K | Form 4 |
| Sep 5, 2025 | WAWROSKI JUDITH I TREASURER/PAO | Other | 600 | $43K | Form 4 |
| Aug 14, 2025 | SANCHEZ ANTONIO R JR Director | Sale | 80,000 | $5.59M⚡ | Form 4 |
| Aug 15, 2025 | SANCHEZ ANTONIO R JR Director | Sale | 40,000 | $2.72M⚡ | Form 4 |
| Jun 5, 2025 | WAWROSKI JUDITH I TREASURER/PAO | Option | 300 | $5K | Form 4 |
| Jun 5, 2025 | WAWROSKI JUDITH I TREASURER/PAO | Option | 700 | $27K | Form 4 |
| Dec 17, 2024 | SANCHEZ ANTONIO R JR Director | Gift | 9,000 | — | Form 4 |
| Dec 17, 2024 | SANCHEZ ANTONIO R JR Director | Gift | 9,000 | — | Form 4 |
| Nov 12, 2024 | NIXON DENNIS E CEO · Director | Sale | 34,815 | $2.51M⚡ | Form 4 |
| Nov 13, 2024 | NIXON DENNIS E CEO · Director | Sale | 65,185 | $4.66M⚡ | Form 4 |
| Aug 13, 2024 | WAWROSKI JUDITH I TREASURER/PAO | Option | 500 | $19K | Form 4 |
| May 21, 2024 | SANCHEZ ANTONIO R JR Director | Sale | 30,112 | $1.80M⚡ | Form 4 |
| May 22, 2024 | SANCHEZ ANTONIO R JR Director | Sale | 49,888 | $2.91M⚡ | Form 4 |
| Mar 11, 2024 | SANCHEZ ANTONIO R JR Director | Sale | 40,000 | $2.17M⚡ | Form 4 |
| Jan 23, 2024 | MARTINEZ DALIA F VICE PRESIDENT | Option | 5,000 | $107K | Form 4 |
| Jan 23, 2024 | MARTINEZ DALIA F VICE PRESIDENT | Other | 1,969 | $107K | Form 4 |
| Dec 7, 2023 | SANCHEZ ANTONIO R JR Director | Sale | 25,000 | $1.23M⚡ | Form 4 |
| Dec 8, 2023 | SANCHEZ ANTONIO R JR Director | Sale | 25,000 | $1.22M⚡ | Form 4 |
| Dec 7, 2023 | SANCHEZ ANTONIO R JR Director | Sale | 50,000 | $2.45M⚡ | Form 4 |
| Dec 8, 2023 | SANCHEZ ANTONIO R JR Director | Sale | 50,000 | $2.44M⚡ | Form 4 |
| Nov 27, 2023 | SANCHEZ ANTONIO R JR Director | Sale | 45,000 | $2.02M⚡ | Form 4 |
| Nov 28, 2023 | SANCHEZ ANTONIO R JR Director | Sale | 15,000 | $669K | Form 4 |
SANCHEZ ANTONIO R JR
Director
Date
Aug 14
Shares
80,000
Price
$69.83
Value
$5.59M ⚡
SANCHEZ ANTONIO R JR
Director
Date
Aug 15
Shares
40,000
Price
$68.12
Value
$2.72M ⚡
NIXON DENNIS E
CEO · Director
Date
Nov 12
Shares
34,815
Price
$72.18
Value
$2.51M ⚡
NIXON DENNIS E
CEO · Director
Date
Nov 13
Shares
65,185
Price
$71.47
Value
$4.66M ⚡
SANCHEZ ANTONIO R JR
Director
Date
May 21
Shares
30,112
Price
$59.75
Value
$1.80M ⚡
SANCHEZ ANTONIO R JR
Director
Date
May 22
Shares
49,888
Price
$58.39
Value
$2.91M ⚡
SANCHEZ ANTONIO R JR
Director
Date
Mar 11
Shares
40,000
Price
$54.22
Value
$2.17M ⚡
MARTINEZ DALIA F
VICE PRESIDENT
Date
Jan 23
Shares
5,000
Price
$21.42
Value
$107K
SANCHEZ ANTONIO R JR
Director
Date
Nov 27
Shares
45,000
Price
$44.79
Value
$2.02M ⚡
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About IBOC insider trading
IBOC insider trades
International Bancshares Corporation (IBOC) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including WAWROSKI JUDITH I (TREASURER/PAO), SANCHEZ ANTONIO R JR (Director), Norton Larry A (Director). Over the past 12 months, 3 insiders have filed transactions with the SEC. IBOC insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For International Bancshares Corporation's institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
IBOC insider trading · 5 questionsThe insiders of International Bancshares Corporation (IBOC) include executives and directors such as WAWROSKI JUDITH I (TREASURER/PAO), SANCHEZ ANTONIO R JR (Director), Norton Larry A (Director), among others. Over the past 12 months, 3 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026