Form 4: Interactive Brokers CAO Reports Stock Disposition

Chief Accounting Officer Denis Mendonca disposed of 11,157 shares of Interactive Brokers Group, Inc. to cover tax obligations.

Summary

• Denis Mendonca, Chief Accounting Officer of Interactive Brokers Group, Inc., reported the disposition of 11,157 shares of Class A common stock.
• The transaction occurred on May 8, 2026, at a price of $84.42 per share.
• The disposition was executed to satisfy tax withholding obligations related to the vesting of restricted stock units.
• Following this transaction, the reporting person maintains a beneficial ownership of 145,071 shares.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the share disposition is purely administrative and related to tax obligations rather than a change in investment outlook.

Positives

• The transaction was a routine administrative action related to tax withholding upon the vesting of equity awards, rather than a discretionary market sale.

Negatives

• The transaction results in a reduction of the officer's direct equity stake in the company.

Risks

• None identified; this is a standard regulatory disclosure for executive compensation tax compliance.

Future Outlook

No forward-looking guidance or strategic outlook was provided in this regulatory filing.

Industry Context

StockSavvy.ai notes that routine tax-related share withholdings by executives are standard industry practice and generally do not signal a change in management sentiment regarding company performance.

Comparison to Industry Standards

• The transaction aligns with standard corporate governance practices for equity-based compensation plans at major financial services firms like Charles Schwab or E*TRADE.

Stakeholder Impact

• Minimal impact on shareholders as the transaction is a standard tax-related equity adjustment.

Next Steps

• None indicated.

Key Dates

Keywords

Interactive Brokers, IBKR, Insider Trading, Form 4, Executive Compensation, Stock Vesting