Thomas Peterffy
Chairman at Interactive Brokers Group Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Interactive Brokers Group Inc., 3 years.
Interactive Brokers Group Inc.
Director · Chairman
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.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Feb 20, 2025 | Interactive Brokers Group Inc. | Gift | −6,447 | — | — |
| Feb 18, 2025 | Interactive Brokers Group Inc. | Gift | −85,427 | — | — |
| Feb 18, 2025 | Interactive Brokers Group Inc. | Gift | −4,870 | — | — |
| Oct 1, 2024 | Interactive Brokers Group Inc. | Gift | −79,975 | — | — |
| Apr 23, 2024 | Interactive Brokers Group Inc. | Other | +62,296 | $114.69 | $7,144,728 |
| Jan 27, 2023 | Interactive Brokers Group Inc. | Open-market sale | −7,300 | $77.35 | $564,655 |
| Jan 27, 2023 | Interactive Brokers Group Inc. | Open-market sale | −11,700 | $77.93 | $911,781 |
| Jan 27, 2023 | Interactive Brokers Group Inc. | Open-market sale | −1,000 | $78.67 | $78,670 |
| Jan 26, 2023 | Interactive Brokers Group Inc. | Open-market sale | −19,700 | $78.72 | $1,550,784 |
| Jan 26, 2023 | Interactive Brokers Group Inc. | Open-market sale | −300 | $79.79 | $23,937 |
| Jan 25, 2023 | Interactive Brokers Group Inc. | Open-market sale | −10,400 | $78.15 | $812,760 |
| Jan 25, 2023 | Interactive Brokers Group Inc. | Open-market sale | −9,600 | $78.69 | $755,424 |
| Jan 24, 2023 | Interactive Brokers Group Inc. | Open-market sale | −18,600 | $79.08 | $1,470,888 |
| Jan 24, 2023 | Interactive Brokers Group Inc. | Open-market sale | −1,400 | $80.12 | $112,168 |
| Jan 23, 2023 | Interactive Brokers Group Inc. | Open-market sale | −5,200 | $78.36 | $407,472 |
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