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 | $60.09 | Mar 10, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $58.82 | Mar 8, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $62.72 | Mar 4, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $65.29 | Mar 2, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $66.03 | Feb 28, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $68.34 | Feb 24, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 43K | $71.12 | Feb 22, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 44K | $73.82 | Feb 17, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 33K | $73.61 | Feb 15, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $74.91 | Feb 11, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $73.52 | Feb 9, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $71.14 | Feb 7, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $69.78 | Feb 3, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $66.08 | Feb 1, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $66.28 | Jan 28, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $66.30 | Jan 26, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $72.09 | Jan 24, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $72.65 | Jan 20, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $75.28 | Jan 18, 2022 |
| Frank Thomas AJ | Chief Information … | SELL | $100K–$500K | 6K | $76.81 | Jan 18, 2022 |
| Frank Thomas AJ | Chief Information … | SELL | $1M+ | 33K | $76.93 | Jan 13, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $76.93 | Jan 13, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $76.49 | Jan 12, 2022 |
| Frank Thomas AJ | Chief Information … | SELL | $1M+ | 33K | $76.51 | Jan 12, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $77.47 | Jan 7, 2022 |
| Frank Thomas AJ | Chief Information … | SELL | $1M+ | 34K | $77.44 | Jan 7, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $79.24 | Jan 5, 2022 |
| Frank Thomas AJ | Chief Information … | SELL | $1M+ | 33K | $79.21 | Jan 5, 2022 |
| Peterffy Thomas | Chairman | SELL | $1M+ | 40K | $80.18 | Jan 3, 2022 |
| Frank Thomas AJ | Chief Information … | SELL | $1M+ | 33K | $80.15 | Jan 3, 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