Interactive Brokers Group, Inc. insider trading
IBKR$88.30+2.49 (+2.90%)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+24.5%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Unlock quarterly net flowKey players
- TPThomas Peterffy1.3386%
- MGMilan Galik0.7097%
- PJPaul Jonathan Brody0.6305%
- EHEarl H. Nemser0.2721%
- TAThomas Aj Frank0.0555%
- LELawrence E. Harris0.0383%
- DMDenis Mendonca0.032%
- JBJill Bright0.0024%
- NYNicole Yuen0.0022%
- WPWilliam Peterffy0.0022%
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| IBKR | Lori A. Conkling | Open market purchase$2.36K | +1.0% | $94.53 | $2.36K | Sep 1, 2026 | Sep 2, 2026 |
| IBKR | Lori A. Conkling | Open market purchase$2.18K | +1.0% | $87.03 | $2.18K | Aug 3, 2026 | Aug 4, 2026 |
| IBKR | Lori A. Conkling | Open market purchase$2.2K | +1.0% | $88.03 | $2.2K | Jul 1, 2026 | Jul 1, 2026 |
| IBKR | Lori A. Conkling | Open market purchase$2.15K | +1.0% | $86.10 | $2.15K | Jun 1, 2026 | Jun 2, 2026 |
| IBKR | Lori A. Conkling | Open market purchase$1.99K | +1.0% | $79.64 | $1.99K | May 1, 2026 | May 4, 2026 |
| IBKR | Lawrence E. Harris | Open market sell$2M | -13.0% | $76.93 | $2M | Apr 28, 2026 | Apr 29, 2026 |
| IBKR | Lori A. Conkling | Open market purchase$1.71K | +1.0% | $68.38 | $1.71K | Apr 1, 2026 | Apr 2, 2026 |
| IBKR | Lori A. Conkling | Open market purchase$1.73K | +1.1% | $69.21 | $1.73K | Mar 2, 2026 | Mar 26, 2026 |
| IBKR | Lori A. Conkling | Open market purchase$3.66K | +2.1% | $73.21 | $3.66K | Feb 25, 2026 | Mar 26, 2026 |
| IBKR | Earl H. Nemser | Open market sell$1.55M | -4.3% | $75.75 | $1.55M | Jan 27, 2026 | Jan 28, 2026 |
| IBKR | Earl H. Nemser | Open market sell$2.98M | -7.8% | $75.07 | $2.98M | Jan 27, 2026 | Jan 28, 2026 |
| IBKR | Earl H. Nemser | Open market sell$242K | -0.6% | $77.98 | $242K | Jan 26, 2026 | Jan 28, 2026 |
| IBKR | Earl H. Nemser | Open market sell$2.36M | -5.6% | $76.72 | $2.36M | Jan 26, 2026 | Jan 28, 2026 |
| IBKR | Earl H. Nemser | Open market sell$4.62M | -10.0% | $75.83 | $4.62M | Jan 26, 2026 | Jan 28, 2026 |
| IBKR | Earl H. Nemser | Open market sell$4.69M | -9.0% | $78.14 | $4.69M | Jan 23, 2026 | Jan 26, 2026 |
| IBKR | Earl H. Nemser | Open market sell$6.6M | -11.3% | $77.65 | $6.6M | Jan 23, 2026 | Jan 26, 2026 |
| IBKR | Earl H. Nemser | Open market sell$7.68M | -11.7% | $76.81 | $7.68M | Jan 22, 2026 | Jan 26, 2026 |
| IBKR | Lawrence E. Harris | Open market sell$735K | -5.1% | $69.00 | $735K | Oct 29, 2025 | Oct 31, 2025 |
| IBKR | Lawrence E. Harris | Open market sell$474K | -3.2% | $69.15 | $474K | Oct 28, 2025 | Oct 29, 2025 |
| IBKR | Lawrence E. Harris | Open market sell$523K | -3.4% | $69.73 | $523K | Oct 27, 2025 | Oct 29, 2025 |
| IBKR | Lawrence E. Harris | Open market sell$548K | -3.5% | $68.50 | $548K | Oct 24, 2025 | Oct 27, 2025 |
| IBKR | Jill Bright | Open market purchase$26.4K | +4.0% | $65.95 | $26.4K | Oct 23, 2025 | Oct 27, 2025 |
| IBKR | Lawrence E. Harris | Open market sell$1.49M | -8.7% | $67.63 | $1.49M | Oct 23, 2025 | Oct 27, 2025 |