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 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Earl H. Nemser - Officer | Grant or award | Class A common stock | 803,568 | $87.99 | $70.71M | |
| Lori A. Conkling - Director | Open-market purchase | Class A common stock | 25 | $87.03 | $2K | |
| Lori A. Conkling | Open-market purchase | Class A common stock | 25 | $88.03 | $2K | |
| Lori A. Conkling | Open-market purchase | Class A common stock | 25 | $86.10 | $2K | |
 Paul Jonathan Brody - Officer | Tax withholding / forfeiture | Class A common stock | 82,920 | $84.42 | $7.00M | |
| Denis Mendonca - Officer | Tax withholding / forfeiture | Class A common stock | 11,157 | $84.42 | $942K | |
| Milan Galik - Officer | Tax withholding / forfeiture | Class A common stock | 255,039 | $84.42 | $21.53M | |
| Thomas Aj Frank - Officer | Tax withholding / forfeiture | Class A common stock | 31,730 | $84.42 | $2.68M | |
| Earl H. Nemser - Officer | Tax withholding / forfeiture | Class A common stock | 22,486 | $84.42 | $1.90M | |
| Lori A. Conkling | Open-market purchase | Class A common stock | 25 | $79.64 | $2K | |
| Lawrence E. Harris | Open-market sale | Class A common stock | 26,000 | $76.93 | $2.00M | |
| Lori A. Conkling | Open-market purchase | Class A common stock | 25 | $68.38 | $2K | |
| Lori A. Conkling | Open-market purchase | Class A common stock | 50 | $73.21 | $4K | |
| Lori A. Conkling | Open-market purchase | Class A common stock | 25 | $69.21 | $2K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 60,882 | $75.83 | $4.62M | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 30,817 | $76.72 | $2.36M | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 3,101 | $77.98 | $242K | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 39,731 | $75.07 | $2.98M | |
| Earl H. Nemser - Officer | Open-market sale | Class A common stock | 20,469 | $75.75 | $1.55M | |
| William Peterffy | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Earl H. Nemser - Officer | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Paul Jonathan Brody - Officer | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Milan Galik - Officer | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Lawrence E. Harris | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Lori A. Conkling | Grant or award | Class A common stock | 389 | $0.00 | - | |
| Lori A. Conkling | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Jill Bright | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Nicole Yuen | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Richard H. Repetto | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Paul Jonathan Brody - Officer | Grant or award | Class A common stock | 53,452 | $0.00 | - | |
| Paul Jonathan Brody - Officer | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Lawrence E. Harris | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Jill Bright | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Richard H. Repetto | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Milan Galik - Officer | Grant or award | Class A common stock | 224,650 | $0.00 | - | |
| Milan Galik - Officer | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Earl H. Nemser - Officer | Grant or award | Class A common stock | 23,240 | $0.00 | - | |
| Earl H. Nemser - Officer | Grant or award | Class A common stock | 389 | $64.31 | $25K | |
| Thomas Aj Frank - Officer | Grant or award | Class A common stock | 13,944 | $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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