Interactive Brokers Group, Inc. (IBKR)
$95.50-$1.05 (-1.09%) Today
Interactive Brokers is a large, automated, retail and institutional brokerage that boasted nearly $780 billion in customer equity at the end of 2025. The company cut its teeth as a market maker, introducing US financial markets to automated and algorithmic training before expanding into brokerage services in 1993. The firm has a wide-ranging client base, with its best-in-class order execution and extremely low margin lending rates catering to a sophisticated audience of hedge funds, proprietary traders, and introducing brokers that account for about 45% of the firm's commissions. With operations spanning more than 170 electronic exchanges, 40 countries, and 29 currencies, Interactive Brokers caters to a global clientele, with more than 80% of active accounts sitting outside the US.
https://www.interactivebrokers.comSEC filings for IBKR on EDGAR
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 3 | 75 | $7K |
| Grant or award | 1 | 803,568 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
58 Form 4 filings on record, the earliest from Oct 2, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Denis Mendonca - Officer | Grant or award | Class A common stock | 11,156 | $0.00 | - | |
| Lori A. Conkling | Grant or award | Class A common stock | 1,167 | $0.00 | - | |
| Lori A. Conkling | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| William Peterffy | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Nicole Yuen | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Milan Galik - Officer | Other | Class A common stock | 895,688 | $0.00 | - | |
| Lawrence E. Harris | Open-market sale | Class A common stock | 10,645 | $69.00 | $735K | |
| Lawrence E. Harris | Open-market sale | Class A common stock | 7,500 | $69.73 | $523K | |
| Lawrence E. Harris | Open-market sale | Class A common stock | 6,855 | $69.15 | $474K | |
| Lawrence E. Harris | Open-market sale | Class A common stock | 22,000 | $67.63 | $1.49M | |
| Lawrence E. Harris | Open-market sale | Class A common stock | 8,000 | $68.50 | $548K | |
| Jill Bright | Open-market purchase | Class A common stock | 400 | $65.95 | $26K | |
 Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 7,414 | $67.16 | $498K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 8,792 | $68.27 | $600K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 2,021 | $68.70 | $139K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 1,979 | $69.30 | $137K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 1,155 | $70.00 | $81K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 1,182 | $63.81 | $75K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 8,866 | $64.76 | $574K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 4,248 | $65.19 | $277K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 15,477 | $65.74 | $1.02M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 1,581 | $66.15 | $105K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 6,227 | $64.90 | $404K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 12,798 | $65.49 | $838K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 13,464 | $64.76 | $872K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 927 | $65.54 | $61K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 6,928 | $64.66 | $448K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 61,794 | $62.06 | $3.83M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 44,727 | $62.48 | $2.79M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 7,937 | $63.43 | $503K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 37,905 | $64.40 | $2.44M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 71,019 | $65.05 | $4.62M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 57,289 | $62.66 | $3.59M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 37,506 | $63.79 | $2.39M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 1,499 | $64.26 | $96K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 98,601 | $62.24 | $6.14M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 587 | $62.62 | $37K | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 57,851 | $62.94 | $3.64M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 54,723 | $63.54 | $3.48M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 35,592 | $63.84 | $2.27M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 61,617 | $64.19 | $3.96M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 22,537 | $61.30 | $1.38M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 84,956 | $62.02 | $5.27M | |
| Paul Jonathan Brody - Officer | Open-market sale | Class A common stock | 104,906 | $62.51 | $6.56M | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 33,379 | $63.86 | $2.13M | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 20,521 | $64.22 | $1.32M | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 153,000 | $67.39 | $10.31M | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 41,086 | $67.88 | $2.79M | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 4,600 | $63.75 | $293K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 200 | $64.19 | $13K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 200 | $66.09 | $13K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 2,400 | $66.77 | $160K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 200 | $67.20 | $13K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 10,200 | $65.60 | $669K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 2,641 | $65.94 | $174K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 12,841 | $66.09 | $849K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 12,641 | $63.47 | $802K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 200 | $64.16 | $13K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 12,400 | $63.94 | $793K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 441 | $64.35 | $28K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 12,841 | $64.54 | $829K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 11,041 | $63.64 | $703K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 1,800 | $64.84 | $117K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 12,441 | $66.18 | $823K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 2,200 | $66.71 | $147K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 1,200 | $62.79 | $75K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 7,441 | $63.94 | $476K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 3,200 | $64.71 | $207K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 1,000 | $65.66 | $66K | |
| Earl H. Nemser - Officer | Grant or award | Class A common stock | 400,000 | $66.22 | $26.49M | |
| Paul Jonathan Brody - Officer | Grant or award | Class A common stock | 1,000,000 | $66.22 | $66.22M | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 100 | $65.90 | $7K | |
| Milan Galik - Officer | Other | Class A common stock | 223,922 | $47.83 | $42.84M | |
| Milan Galik - Officer | Other | Class A common stock | 223,922 | $47.83 | $42.84M | |
 Thomas Peterffy - Officer | Gift | Class A common stock | 79,975 | $0.00 | - |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR |
Interactive Brokers Group, Inc. (IBKR) had 4 insider filings in the last 90 days, with the most recent on 2026-08-04. The full record for IBKR runs to 58 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
3 insider purchases of IBKR were filed in the last 90 days, totaling $7K.
No insider sales of IBKR were filed in the last 90 days. 69 sales are on record for this company.
This page tracks IBKR Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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