Interactive Brokers Group, Inc.
Total Trades
180
Buys
1
Sells
179
Largest Trade
$1M+
Insiders
7
Institutional Funds
832
Inst. Value
$1M+
Activist Filings
18
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $76.35 | Oct 25, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $75.30 | Oct 21, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $58.09 | Aug 1, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $56.54 | Jul 28, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $56.57 | Jul 26, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $56.60 | Jul 22, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $56.27 | Jul 20, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $53.65 | Jul 18, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $54.34 | Jul 14, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $55.50 | Jul 12, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $56.23 | Jul 8, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $55.28 | Jul 6, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $56.15 | Jul 1, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $58.02 | Jun 29, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $57.23 | Jun 27, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $57.36 | Jun 23, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $55.62 | Jun 21, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $56.01 | Jun 16, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $55.40 | Jun 14, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $58.69 | Jun 10, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $60.46 | Jun 8, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $60.81 | Jun 2, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $59.82 | May 31, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $56.46 | May 26, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $56.61 | May 24, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $54.87 | May 20, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $55.25 | May 18, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $54.12 | May 16, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $54.20 | May 12, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $54.29 | May 10, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $57.99 | May 6, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $59.52 | May 4, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $61.15 | May 2, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $61.76 | Apr 28, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $61.38 | Apr 26, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $65.76 | Apr 22, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $64.61 | Apr 20, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $65.42 | Apr 15, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $65.18 | Apr 13, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $64.02 | Apr 11, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $65.44 | Apr 7, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $66.69 | Apr 5, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $67.09 | Apr 1, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $66.84 | Mar 30, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $66.18 | Mar 28, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $67.20 | Mar 24, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 42K | $65.55 | Mar 22, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 38K | $64.54 | Mar 18, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $62.12 | Mar 16, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $61.44 | Mar 14, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 832 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| VANGUARD GROUP INC | 48.4M | $1M+ | SH |
| STATE STREET CORP | 18.8M | $1M+ | SH |
| Greenwich Wealth Management LLC | 9.2M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 8.9M | $1M+ | SH |
| CANTILLON CAPITAL MANAGEMENT LLC | 8.4M | $1M+ | SH |
| NORGES BANK | 7.0M | $1M+ | SH |
| Egerton Capital (UK) LLP | 6.9M | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 5.8M | $1M+ | SH |
| 1832 Asset Management L.P. | 5.0M | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 4.8M | $1M+ | SH |
| Neuberger Berman Group LLC | 4.2M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.4M | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 2.6M | $1M+ | SH |
| TD ASSET MANAGEMENT INC | 2.2M | $1M+ | SH |
| Progeny 3, Inc. | 2.1M | $1M+ | SH |
| KBC Group NV | 2.1M | $1M+ | SH |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 1.8M | $1M+ | SH |
| Empower Advisory Group, LLC | 1.8M | $1M+ | SH |
| Ensign Peak Advisors, Inc | 1.7M | $1M+ | SH |
| Ancient Art, L.P. | 1.6M | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Bares Capital Management, Inc.
SC 13G/A · Nov 7, 2025
0.0%
0 shares
SC 13G/A · Oct 17, 2025
6.2%
27.6M shares
SC 13G/A · Sep 8, 2025
11.4%
50.8M shares
ORBIS INVESTMENT MANAGEMENT LTD
SC 13G/A · Feb 14, 2025
4.8%
5.3M shares
SC 13G/A · Feb 5, 2025
9.5%
10.3M shares
SC 13G/A · Nov 14, 2024
6.0%
6.5M shares
Kayne Anderson Rudnick Investment Management, LLC 95-4575414
SC 13G/A · Nov 13, 2024
3.6%
3.9M shares
SC 13G · Feb 14, 2024
7.3%
7.7M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.1%
9.7M shares
Kayne Anderson Rudnick Investment Management, LLC 95-4575414
SC 13G/A · Feb 13, 2024
5.9%
6.3M shares
SC 13G/A · Jan 25, 2024
8.4%
9.0M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Feb 14, 2023
7.3%
7.5M shares
SC 13G/A · Feb 14, 2023
3.1%
3.2M shares
SC 13G/A · Jan 25, 2023
8.7%
8.9M shares
IBG Holdings LLC I.R.S. Identification No. 35-2296543
SC 13D/A · Aug 4, 2022
75.5%
316.6M shares
Bares Capital Management,Inc. 74-2961140
SC 13G/A · Feb 14, 2022
5.3%
5.2M shares
SC 13G · Feb 12, 2022
5.8%
5.7M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Feb 11, 2022
8.8%
8.7M shares