Interactive Brokers Group, Inc.
IBKR- Exchange
- Nasdaq
- Industry
- Security Brokers, Dealers & Flotation Companies
- SEC CIK
- 0001381197
In the last 90 days, Interactive Brokers Group, Inc. insiders filed 2 open-market purchases and 0 sales; 1,119 institutions reported holding it in 13F filings for Q2 2026, worth $33.7B in total; 3 superinvestors hold it, including Viking Global Investors and Lone Pine Capital.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Interactive Brokers Group, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 2 filings
- 1 insider, $4.54K in total
- Open-market sells
- 0 filings
- Insiders trading
- 1
- Net value
- +$4.54K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Interactive Brokers Group, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Conkling Lori A | Director | 2,559 | Sep 2, 2026 | 9 |
| Nemser Earl H | Vice Chairman | 803,568Indirect | Aug 4, 2026 | 6 |
| Frank Thomas AJ | Executive Vice President | 251,518 | May 28, 2026 | 2 |
| Brody Paul Jonathan | Chief Financial Officer | 2,856,806 | May 28, 2026 | 5 |
| Galik Milan | Chief Executive Officer | 3,215,389 | May 28, 2026 | 4 |
| Mendonca Denis | Chief Accounting Officer | 145,071 | May 28, 2026 | 2 |
| Harris Lawrence E | Director | 173,482 | Apr 29, 2026 | 6 |
| Bright Jill | Director | 11,082 | Jan 26, 2026 | 3 |
| Peterffy William | Director | 10,126 | Jan 26, 2026 | 2 |
| Yuen Nicole | Director | 10,126 | Jan 26, 2026 | 2 |
| Repetto Richard H | Director | 3,046 | Jan 26, 2026 | 2 |
| Peterffy Thomas | Chairman | 1,516,182 | Feb 24, 2025 | 0 |
| Uhde Philip | Director | 2,572 | Jan 9, 2024 | 0 |
| Katz Gary | Director | 1,928 | Jan 6, 2023 | 0 |
| Damgard John M. | Director | 2,188 | Jan 6, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 11, 2021 (view filing) | Aug 9-10 | 2 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $63.67 | −$2.55M | −0.6%6.47M after | 4 lots |
| Aug 9, 2021 (view filing) | Aug 5-6 | 4 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $62.66 | −$2.51M | −0.6%6.51M after | 3 lots |
| Aug 9, 2021 (view filing) | Aug 5-6 | 4 days | Frank Thomas AJChief Information Officer | SSaleClass A common stock | −36.8K | $62.69 | −$2.31M | −1.6%2.27M after | 3 lots |
| Aug 5, 2021 (view filing) | Aug 3-4 | 2 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $61.70 | −$2.47M | −0.6%6.55M after | 5 lots |
| Aug 5, 2021 (view filing) | Aug 3-4 | 2 days | Frank Thomas AJChief Information Officer | SSaleClass A common stock | −36.4K | $61.72 | −$2.24M | −1.6%2.31M after | 5 lots |
| Aug 3, 2021 (view filing) | Jul 30-Aug 2 | 4 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $62.47 | −$2.50M | −0.6%6.59M after | 4 lots |
| Jul 30, 2021 (view filing) | Jul 28-29 | 2 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $61.48 | −$2.46M | −0.6%6.63M after | 4 lots |
| Jul 28, 2021 (view filing) | Jul 26-27 | 2 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $60.52 | −$2.42M | −0.6%6.67M after | 2 lots |
| Jul 26, 2021 (view filing) | Jul 22-23 | 4 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $61.73 | −$2.47M | −0.6%6.71M after | 3 lots |
| Jul 22, 2021 (view filing) | Jul 20-21 | 2 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $63.07 | −$2.52M | −0.6%6.75M after | 4 lots |
| Jul 20, 2021 (view filing) | Jul 16-19 | 4 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $62.93 | −$2.52M | −0.6%6.79M after | 3 lots |
| Jul 16, 2021 (view filing) | Jul 14-15 | 2 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $63.84 | −$2.55M | −0.6%6.83M after | 3 lots |
| Jul 14, 2021 (view filing) | Jul 12-13 | 2 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $64.72 | −$2.59M | −0.6%6.87M after | 3 lots |
| Jul 12, 2021 (view filing) | Jul 8-9 | 4 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $64.17 | −$2.57M | −0.6%6.91M after | 4 lots |
| Jul 8, 2021 (view filing) | Jul 6-7 | 2 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $64.29 | −$2.57M | −0.6%6.95M after | 4 lots |
| Jul 6, 2021 (view filing) | Jul 1-2 | 5 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $65.93 | −$2.64M | −0.6%6.99M after | 3 lots |
| Jul 1, 2021 (view filing) | Jun 29-30 | 2 days | Peterffy ThomasChairman | SSaleClass A common stock | −40.0K | $65.91 | −$2.64M | −0.6%7.03M after | 2 lots |