Board of directors (9)
Directors with a Section 16 filing in the last 13 months. “Since” is the first filing as a director; SEC data sets start in 2016.
Executive officers (5)
Company facts
- Chair
- —
- In S&P 500 since
- Aug 2025
- Incorporated in
- DE
- Fiscal year ends
- December
- SEC industry
- Security Brokers, Dealers & Flotation Companies
- SEC filings
- EDGAR
Major holders (5% or more)
Latest Schedule 13D/13G filing per holder. Holders that reported falling below 5% are not shown. Index funds usually report once a year.
No 5% holder filings parsed yet for this company.
Insider trades
Open-market purchases and sales reported on Form 4. Grants, option exercises and tax withholding are excluded.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Nov 2, 2026 | Lori A. Conkling Director | Buy | 25 | $78.44 | $2K |
| Oct 28, 2026 | Lawrence E. Harris Director | Sale | 25,000 | $82.61 | $2.1M |
| Oct 1, 2026 | Lori A. Conkling Director | Buy | 25 | $85.42 | $2K |
| Sep 1, 2026 | Lori A. Conkling Director | Buy | 25 | $94.53 | $2K |
| Aug 3, 2026 | Lori A. Conkling Director | Buy | 25 | $87.03 | $2K |
| Jul 1, 2026 | Lori A. Conkling Director | Buy | 25 | $88.03 | $2K |
| Jun 1, 2026 | Lori A. Conkling Director | Buy | 25 | $86.10 | $2K |
| May 1, 2026 | Lori A. Conkling Director | Buy | 25 | $79.64 | $2K |
| Apr 28, 2026 | Lawrence E. Harris Director | Sale | 26,000 | $76.93 | $2.0M |
| Apr 1, 2026 | Lori A. Conkling Director | Buy | 25 | $68.38 | $2K |
| Mar 2, 2026 | Lori A. Conkling Director | Buy | 25 | $69.21 | $2K |
| Feb 25, 2026 | Lori A. Conkling Director | Buy | 50 | $73.21 | $4K |
| Jan 27, 2026 | Earl H. Nemser Vice Chairman | Sale | 39,731 | $75.07 | $3.0M |
| Jan 27, 2026 | Earl H. Nemser Vice Chairman | Sale | 20,469 | $75.75 | $1.6M |
| Jan 26, 2026 | Earl H. Nemser Vice Chairman | Sale | 60,882 | $75.83 | $4.6M |
| Jan 26, 2026 | Earl H. Nemser Vice Chairman | Sale | 30,817 | $76.72 | $2.4M |
| Jan 26, 2026 | Earl H. Nemser Vice Chairman | Sale | 3,101 | $77.98 | $242K |
| Jan 23, 2026 | Earl H. Nemser Vice Chairman | Sale | 60,065 | $78.14 | $4.7M |
| Jan 23, 2026 | Earl H. Nemser Vice Chairman | Sale | 84,935 | $77.65 | $6.6M |
| Jan 22, 2026 | Earl H. Nemser Vice Chairman | Sale | 100,000 | $76.81 | $7.7M |
| Oct 29, 2025 | Lawrence E. Harris Director | Sale | 10,645 | $69.00 | $735K |
| Oct 28, 2025 | Lawrence E. Harris Director | Sale | 6,855 | $69.15 | $474K |
| Oct 27, 2025 | Lawrence E. Harris Director | Sale | 7,500 | $69.73 | $523K |
| Oct 24, 2025 | Lawrence E. Harris Director | Sale | 8,000 | $68.50 | $548K |
| Oct 23, 2025 | Jill Bright Director | Buy | 400 | $65.95 | $26K |
Board and executive changes
Every 8-K with Item 5.02 (departure, election or appointment of directors and officers). The text is the first paragraph of the item.
- Jan 2, 2024
On October 17, 2023, the Board of Directors (the “Board”) of Interactive Brokers Group, Inc. (the “Company”) appointed Mr. Richard Repetto to serve as an independent director of the Company, effective January 1, 2024. Mr. Repetto is a renowned research analyst with over 25 years of experience covering electronic trading and financial technology companies. Mr. Repetto retired in June 2023 as Managing Director and Senior Research Analyst at Piper Sandler. Throughout his successful career, Mr. Repetto received many accolades, including the Financial Times/StarMine “Analyst of the Year” Award in 2010 and “Global Analyst of the Year” from the Financial Times in 2012. Mr. Repetto will receive the same compensation as the Company’s other non-employee directors. The compensation program is described in the Company’s Proxy Statement on Schedule 14A filed with the U.S.
Read the 8-K filing - Jun 29, 2020
On June 24, 2020, the Board of Directors (the “Board”) of Interactive Brokers Group, Inc. (the “Company”) appointed Ms. Nicole Yuen to serve as a director of the Company, effective July 1, 2020. Ms. Yuen is a seasoned investment banker with more than 20 years’ experience. Ms. Yuen most recently served as Managing Director, Head of Equities – North Asia and Vice Chairman – Greater China for Credit Suisse. During her 6-year tenure, she led the build-out of Credit Suisse’s brokerage business in mainland China and oversaw the bank’s equities business in North Asia. Ms. Yuen will receive the same compensation as the Company’s other non-employee directors. The compensation program is described in the Company’s Proxy Statement on Schedule 14A filed with the U.S. Securities and Exchange Commission (“SEC”) on March 11, 2020. The Board has determined that Ms.
Read the 8-K filing - Jan 28, 2019
On January 22, 2019, Interactive Brokers Group, Inc.’s (the “Company”) Board of Directors appointed Mr. Milan Galik to serve as the Company’s Chief Executive Officer effective October 1 , 2019. Mr. Galik, age 52 , joined us in 1990 as a software developer and has served as President of the Company and IBG LLC , the holding company for our businesses, since October 2014. Mr. Galik served as Senior Vice President, Software Development of IBG LLC from October 2003 to October 2014. In addition, Mr. Galik has served as Vice President of Timber Hill LLC , a subsidiary of the Company, since April 1998 and serves as a member of the board of directors of the Boston Options Exchange. Mr. Galik received a Master of Science degree in electrical engineering from the Technical University of Budapest in 1990.
Read the 8-K filing - Jan 7, 2019
Interactive Brokers Group, Inc. (the “Company”), announced today that it will appoint Mr. Milan Galik as Chief Executive Officer of the Company, succeeding Mr. Thomas Peterffy in this role. Mr. Peterffy, will continue as Chairman of the Board. These changes will occur in the third quarter of 2019, concurrently with Mr. Peterffy’s 75 th birthday. It is expected that the Company’s Board will formalize these changes at its meeting on January 22, 2019. A copy of the press release issued by the Company is furnished as Exhibit 99.1 to this Current Report on Form 8-K and incorporated herein by reference.
Read the 8-K filing - Dec 3, 2018
On November 30 , 2018 , the Board of Directors (the “Board”) of Interactive Brokers Group, Inc. (the “Company”) appointed Mr. John M. Damgard to serve as a director of the Company, effective December 1 , 2018 , to fill an upcoming vacancy on the Board created by the resignation of Dr. Kenneth Winston , effective December 31, 2018 . Mr. Damgard was the president of the Futures Industry Association and founder, past president and a member of the Institute for Financial Markets . Mr. Damgard has no family relationships with directors or other executive officers of the Company and is not a party to any transactions requiring disclosure under Item 404(a) of Regulation S-K. Mr. Damgard will receive the same compensation as the Company’s other non-employee directors. The compensation program is described in the Company’s Proxy Statement on Schedule 14A filed with the U.S.
Read the 8-K filing - Oct 23, 2018
On October 17, 2018, Dr. Kenneth Winston notified Interactive Brokers Group, Inc. the (“Company”) that he will be resigning as a director of the Company, effective December 31, 2018. ***
Read the 8-K filing - Dec 20, 2016
On December 14 , 2016, the Board of Directors (the “Board”) of Interactive Brokers Group, Inc. (the “Company”) appointed Mr. Gary Katz to serve as a director of the Company, effective January 4, 2017, to fill an upcoming vacancy on the Board created by the resignation of Dr. Hans Stoll, who will be retiring at the end of this year . The Board also elected Mr. Katz to serve as a member of the Audit Committee , effective January 4, 2017. Mr. Katz is a co-founder and the former President and Chief Executive Officer of the International Securities Exchange. Mr. Katz has no family relationships with directors or other executive officers of the Company and is not a party to any transactions requiring disclosure under Item 404(a) of Regulation S-K. Mr. Katz will receive the same compensation as the Company’s other non-employee directors.
Read the 8-K filing - Oct 24, 2016
On October 18, 2016, Dr. Hans Stoll notified Interactive Brokers Group, Inc. the (“Company”) that he will be resigning as a director of the Company, effective December 31, 2016 . Dr. Stoll resigned for personal reasons and not as a result of a disagreement with the Company. ***
Read the 8-K filing - Jan 21, 2016
On January 20 , 2016, Interactive Brokers Group, Inc.’s (the “Company”) Board of Directors elected Mr. Denis Mendonca to serve as the Company’s Chief Accounting Officer. Mr. Mendonca, age 41, has been the Group Controller of IBG LLC since September 2014. Prior to joining the Company, Mr. Mendonca served as Executive Director - Head of U.S. Financial Reporting for UBS, a global financial services company, from December 2000 to September 2014. Prior to joining UBS, Mr. Mendonca worked for five years as an auditor for PricewaterhouseCoopers. Mr. Mendonca is a Certified Public Accountant licensed with the Massachusetts Board of Public Accountancy, and has a Bachelor’s degree in Accounting from the Paulista University (Brazil) and a Bachelor’s degree in Business Administration from the Mackenzie University (Brazil).
Read the 8-K filing
Proxy statements (DEF 14A): 2026 · 2025 · 2024 · 2023 · 2022 · 2021
Share price
Annual financials
From the company's 10-K XBRL data (SEC companyfacts).
| Fiscal year | Revenue | Net income | Margin | Diluted EPS | Total assets |
|---|---|---|---|---|---|
| FY2025 | $2.4B | $4.4B | 178.6% | $2.22 | $203.2B |
| FY2024 | $2.0B | $3.4B | 172.3% | $1.73 | $150.1B |
| FY2023 | $1.6B | $2.8B | 180.6% | $1.42 | $128.3B |
| FY2022 | $1.5B | $1.8B | 122.3% | $3.75 | $115.1B |
| FY2021 | $1.6B | $1.6B | 104.3% | $3.24 | $109.1B |
| FY2020 | $1.3B | $1.2B | 91.6% | $2.42 | $95.7B |
| FY2019 | $2.6B | $1.1B | 42.2% | $2.10 | $71.7B |
| FY2018 | $2.4B | $1.1B | 47.5% | $2.28 | $60.5B |
Former directors and officers (5)
People who stopped filing as an insider of this company. “Last filing” is the last Form 3/4/5, an upper bound on when they left.