Form 4: Interactive Brokers CFO Sells $12.25M in Stock

Interactive Brokers Group CFO Paul J. Brody sold 195,482 shares of Class A common stock for approximately $12.25 million under a Rule 10b5-1 plan.

Summary

• Paul Jonathan Brody, Chief Financial Officer and Director of Interactive Brokers Group, Inc. (IBKR), reported the sale of Class A common stock.
• A total of 195,482 shares of Class A common stock were sold across multiple transactions on September 15 and September 16, 2025.
• The sales generated approximately $12,253,959 in proceeds.
• All reported sales were conducted indirectly by PJB Holdings LLC, an entity owned indirectly by Mr. Brody.
• The transactions were made pursuant to a Rule 10b5-1(c) contract, instruction, or written plan, indicating a pre-arranged sale.
• Following these transactions, Mr. Brody indirectly beneficially owns 382,336 shares of Class A common stock through PJB Holdings LLC.
• Mr. Brody also directly beneficially owns 2,885,496 shares of Class A common stock, which includes vested restricted stock units and unvested restricted stock units awarded under the 2007 Stock Incentive Plan.

Sentiment

Score: 5

Explanation: The filing reports a routine insider transaction under a pre-arranged plan, which is a neutral event for the company's operational or financial performance. It does not indicate any positive or negative shifts in the company's fundamentals.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future outlook.

Industry Context

Insider stock sales, particularly those executed under a Rule 10b5-1 plan, are a common practice among corporate executives for personal financial planning, diversification, and liquidity management. These pre-arranged plans help executives avoid accusations of trading on material non-public information.

Comparison to Industry Standards

• The use of a Rule 10b5-1 plan for insider stock sales is considered a best practice in corporate governance, aligning with industry standards for transparency and mitigating potential insider trading concerns.
• The reported transaction volume and value are within typical ranges for executive liquidity events at companies of similar market capitalization, and do not suggest an unusual or alarming divestment.

Corporate Governance

Related Party Transactions

• The shares sold by PJB Holdings LLC were acquired in a partial redemption of its interest in IBG Holdings LLC. These securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interest in IBG LLC.

Stakeholder Impact

• Shareholders: May note the executive's sale, but given it's a pre-planned transaction, it is unlikely to signal a change in company fundamentals or strategy.
• Employees, Customers, Suppliers, Creditors: No direct impact from this routine insider transaction.

Key Dates

Recommendation

The filing details a routine insider stock sale by the CFO under a pre-arranged Rule 10b5-1 plan. Such transactions are common for executive compensation and liquidity management and do not typically signal a change in the company's fundamental outlook or performance. Therefore, the filing itself does not provide a basis for a change in investment recommendation, suggesting a 'hold' position based solely on this disclosure.

Keywords

Interactive Brokers, IBKR, Insider Sale, Form 4, Paul J. Brody, CFO, Director, Stock Sale, Rule 10b5-1