Harris Lawrence E 4

What Happened
Lawrence E. Harris, a director of Interactive Brokers Group, Inc. (IBKR), sold 26,000 shares on April 28, 2026 in an open-market/private sale. The weighted average sale price was $76.93 per share (range $76.87–$77.04), generating total proceeds of $2,000,180. This was a sale (code S) rather than a purchase or option exercise.

Key Details

• Transaction date: 2026-04-28; filing date: 2026-04-29 (timely filed)
• Shares sold: 26,000; weighted average price: $76.93; total proceeds: $2,000,180
• Reported price range: $76.87 to $77.04; footnote states the price is a weighted average and the reporter will provide breakdown by price on request
• Transaction type/code: Sale (S) — typically a disposition, not a purchase signal
• Shares owned after the transaction: Not specified in the information provided in this summary

Context
Sales by directors can be routine (e.g., portfolio rebalancing, tax needs) and do not by themselves indicate a change in company outlook. Purchases generally carry more weight as a positive signal. This filing documents a straightforward open-market sale; no option exercises, gifts, or 10b5-1 plan were disclosed in the provided details.