Interactive Brokers Group, Inc. filings document the regulatory record for an automated global broker with Class A common stock listed on the Nasdaq Global Select Market under IBKR. The company’s Form 8-K reports furnish quarterly results, operating and financial condition disclosures, dividend and capital-market actions, and exhibits tied to earnings releases or registration statements.
Proxy and annual-meeting filings cover board elections, auditor ratification, advisory executive-compensation votes, equity compensation disclosures and amendments to the 2007 Stock Incentive Plan. Registration-related filings and prospectus supplements describe common-stock issuance under shelf registration statements, while governance disclosures address shareholder voting outcomes, director terms, compensation tables and stock-based incentive plan administration.
Interactive Brokers Group, Inc. filed a Prospectus Supplement under Rule 424(b)(5) on July 31, 2026 to take down 2,499,567 shares of its common stock from its shelf Registration Statement on Form S-3 (Registration No. 333-297857).
The company also filed an opinion from Dechert LLP regarding the validity of these shares as Exhibit 5.2, and that opinion is incorporated by reference into the Form S-3 registration statement. An Inline XBRL cover page data file is included as Exhibit 104.
Interactive Brokers Group, Inc. has filed an automatic shelf registration on Form S-3 as a well-known seasoned issuer, allowing primary offerings of Class A common stock from time to time, with specific terms and amounts to be set in future prospectus supplements.
Net cash proceeds from sales of common stock are expected to be used to purchase IBG LLC membership interests from IBG Holdings LLC, maintaining alignment between outstanding IBG LLC interests and shares of common stock; alternatively, shares may be issued to IBG LLC for newly issued membership interests, in which case no cash proceeds are received. The company states that, under this structure, no material dilution is expected.
The capital structure includes up to 4,000,000,000 authorized shares of Class A common stock and a dual-class voting system in which IBG, Inc. owns approximately 26.5% of IBG LLC’s 1,701.4 million membership interests and IBG Holdings LLC owns approximately 73.5%, with IBG Holdings LLC holding about 1,251 million votes through Class B common stock as of June 30, 2026.
Interactive Brokers Group, Inc. reported Q2 2026 GAAP and adjusted diluted EPS of $0.69, up from $0.51 in the year-ago quarter. GAAP net revenues were $1.90 billion, with adjusted net revenues of $1.88 billion versus $1.48 billion a year earlier. Income before income taxes was $1.46 billion, or $1.44 billion on an adjusted basis, and the pretax profit margin was 77%.
Commission revenue rose 30% to $673 million on higher options, stock and futures trading, while net interest income increased 23% to $1.06 billion, driven by higher average customer margin loans and credit balances. Other fees and services grew 40% to $87 million; execution, clearing and distribution fees rose 22% to $142 million, including a $19 million increase in regulatory fees tied to a higher SEC Section 31 rate. Total equity was $22.3 billion.
Customer accounts increased 34% year over year to 5.19 million, customer equity 40% to $930.3 billion, Total DARTs 36% to 4.82 million, customer credits 27% to $182.4 billion and customer margin loans 67% to $108.5 billion. The Board declared a quarterly cash dividend of $0.0875 per share, payable September 14, 2026 to shareholders of record on September 1, 2026.
Interactive Brokers Group, Inc. director Lori A. Conkling purchased 25 shares of Class A common stock in an open-market transaction at $88.03 per share. Following this purchase, she directly owns 2,509 shares. This total includes shares from past awards of vested and unvested restricted stock units under the company’s 2007 Stock Incentive Plan.
Interactive Brokers Group, Inc. director Lori A. Conkling reported an open-market purchase of 25 shares of Class A common stock at $86.10 per share. After this transaction, she directly owns 2,484 shares. A footnote explains that this amount also reflects vested and unvested restricted stock units granted under the company’s 2007 Stock Incentive Plan.
Interactive Brokers Group, Inc. Chief Financial Officer Paul Jonathan Brody reported a tax-related share disposition involving 82,920 shares of Class A common stock. The shares were withheld on May 8, 2026 to cover tax obligations tied to vesting restricted stock units, using a reference price of $84.42 per share, the closing price on the vesting date.
These shares were not sold in an open-market transaction but delivered to satisfy tax liability associated with equity compensation under the company’s amended 2007 Stock Incentive Plan. Following this disposition, Brody directly holds 2,856,806 shares of Class A common stock, including both vested and unvested restricted stock units awarded under the plan.
Interactive Brokers Group, Inc. Chief Accounting Officer Denis Mendonca reported a tax-withholding disposition of 11,157 shares of Class A common stock on May 8, 2026. The shares were delivered to satisfy tax obligations at a reference price of $84.42 per share tied to a vesting date.
After this transaction, Mendonca directly holds 145,071 shares of Class A common stock, which the disclosure notes includes both shares attributable to vested restricted stock units and unvested restricted stock units granted under the amended 2007 Stock Incentive Plan.
Interactive Brokers Group, Inc. Chief Executive Officer Milan Galik reported a tax-related share disposition tied to equity compensation. On May 8, 2026, 255,039 shares of Class A common stock were withheld to satisfy tax obligations, using the stock’s $84.42 closing price as the reference value.
Following this tax-withholding disposition, Galik’s directly held position increased to a reported 3,215,389 shares, which the disclosure notes includes shares attributable to vested restricted stock units and unvested restricted stock units awarded under the amended 2007 Stock Incentive Plan. The transaction reflects share withholding for taxes rather than an open-market sale.
Interactive Brokers Group, Inc. Executive Vice President Frank Thomas AJ reported a tax-related share disposition tied to equity compensation. On May 8, 2026, 31,730 shares of Class A common stock were delivered at a reference price of $84.42 per share to cover tax obligations upon vesting of restricted stock units. This was a tax-withholding disposition, not an open-market sale. After this event, he directly held 251,518 shares of Class A common stock, a figure that includes both vested and unvested restricted stock units awarded under the amended 2007 Stock Incentive Plan.
Interactive Brokers Group, Inc. director and Vice Chairman Earl H. Nemser reported a tax-withholding share disposition tied to equity compensation. On May 8, 2026, 22,486 shares of Class A common stock were delivered at a reference price of $84.42 per share to cover tax obligations on vested awards.
After this non-market tax-withholding disposition, Nemser directly held 429,344 shares of Class A common stock. The reported holdings include shares attributable to vested and unvested restricted stock units granted under the company’s amended 2007 Stock Incentive Plan.