Interactive Brokers Group Inc.
Last updated September 27, 2026
Organization details
- Legal name
- Interactive Brokers Group Inc.
- Ownership
- Public
- Status
- Active
- Headquarters country
- United States
- Ticker symbol
- IBKR
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001381197
Board of directors
-
Earl H. Nemser · Director · Vice ChairmanSince 2023
-
Gary Katz · DirectorSince 2023
-
Jill Bright · DirectorSince 2023
-
Lawrence E. Harris · DirectorSince 2023
-
Lori A. Conkling · DirectorSince 2025
-
Milan Galik · Director · Chief Executive OfficerSince 2023
-
Nicole Yuen · DirectorSince 2023
-
Paul Jonathan Brody · Director · Chief Financial OfficerSince 2023
-
Philip Uhde · DirectorSince 2023
-
Richard H. Repetto · DirectorSince 2024
-
Thomas Peterffy · Director · ChairmanSince 2023
-
William Peterffy · DirectorSince 2023
Chief executives
Milan Galik
· Chief Executive Officer
Dates unknown
Board connections
2 of this board's directors also sit on 2 other boards.
- via Jill Bright
- via Richard H. Repetto
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $42,000
- 8 purchases by 2 insiders
- Sold, last 12 months
- $37,948,128
- 19 sales by 3 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 3, 2026 | Lori A. Conkling Director | Open-market purchase | +25 | $87.03 | $2,176 |
| Jul 31, 2026 | Earl H. Nemser Director, Officer (Vice Chairman) | Grant or award | +803,568 | $87.99 | $70,705,948 |
| Jul 1, 2026 | Lori A. Conkling Director | Open-market purchase | +25 | $88.03 | $2,201 |
| Jun 1, 2026 | Lori A. Conkling Director | Open-market purchase | +25 | $86.10 | $2,153 |
| May 8, 2026 | Paul Jonathan Brody Director, Officer (Chief Financial Officer) | Shares withheld for tax | −82,920 | $84.42 | $7,000,106 |
| May 8, 2026 | Mendonca Denis Officer (Chief Accounting Officer) | Shares withheld for tax | −11,157 | $84.42 | $941,874 |
| May 8, 2026 | Milan Galik Director, Officer (Chief Executive Officer) | Shares withheld for tax | −255,039 | $84.42 | $21,530,392 |
| May 8, 2026 | Frank Thomas AJ Officer (Executive Vice President) | Shares withheld for tax | −31,730 | $84.42 | $2,678,647 |
| May 8, 2026 | Earl H. Nemser Director, Officer (Vice Chairman) | Shares withheld for tax | −22,486 | $84.42 | $1,898,268 |
| May 1, 2026 | Lori A. Conkling Director | Open-market purchase | +25 | $79.64 | $1,991 |
| Apr 28, 2026 | Lawrence E. Harris Director | Open-market sale | −26,000 | $76.93 | $2,000,180 |
| Apr 1, 2026 | Lori A. Conkling Director | Open-market purchase | +25 | $68.38 | $1,710 |
| Mar 2, 2026 | Lori A. Conkling Director | Open-market purchase | +25 | $69.21 | $1,730 |
| Feb 25, 2026 | Lori A. Conkling Director | Open-market purchase | +50 | $73.21 | $3,661 |
| Jan 27, 2026 | Earl H. Nemser Director, Officer (Vice Chairman) | Open-market sale | −39,731 | $75.07 | $2,982,606 |
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