Lawrence E. Harris - 28 Apr 2026 Form 4 Insider Report for Interactive Brokers Group, Inc. (IBKR)

Reporting relationship: Director
Issuer ticker: IBKR
Reported as of: 28 Apr 2026
Net transaction value: -$2,000,180
SEC form: 4
Accepted by SEC: 29 Apr 2026, 16:01:03 UTC
Prior SEC filing: 26 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Raymond Bussiere as authorized signatory for Lawrence E Harris

Key filing fact

Lawrence E. Harris filed Form 4 for Interactive Brokers Group, Inc. (IBKR) on 29 Apr 2026.

Key facts

This page summarizes Lawrence E. Harris's Form 4 filing for Interactive Brokers Group, Inc. (IBKR).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 29 Apr 2026, 16:01.

Change

Previous filing in this sequence was filed on 26 Jan 2026.
Current net transaction value: -$2,000,180.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001406586 Primary reporting owner

Harris Lawrence E

Relationship: Director
Address: ONE PICKWICK PLAZA, GREENWICH
Signature: /s/ Raymond Bussiere as authorized signatory for Lawrence E Harris
Signature date: 29 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IBKR transaction

Class A common stock

Sale

Transaction value: $2,000,180
Shares: -26,000
Change %: -13%
Price: $76.93
Shares after: 173,482
Date: 28 Apr 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.87 to $77.04. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in this footnote (1).