Interactive Brokers Group Inc SEC Filings

Interactive Brokers Group, Inc. (IBKR) Form 4: Paul J. Brody, who serves as Chief Financial Officer and a director, reported multiple sales of Class A common stock on September 17-18, 2025. The filing lists five sale transactions totaling 223,382 shares sold at weighted-average prices ranging from about $61.28 to $65.54. The Form discloses that certain Class A shares are held indirectly through PJB Holdings LLC. The filing also reports a total beneficial ownership figure of 2,885,496 shares, which the footnote says includes both vested and unvested restricted stock units awarded under the company’s 2007 Stock Incentive Plan.

Paul J. Brody, Chief Financial Officer and director of Interactive Brokers Group, Inc. (IBKR), reported multiple sales of Class A common stock on September 15–16, 2025. The Form 4 lists disposals of 57,289, 37,506, 1,499, 98,601 and 587 shares at weighted-average prices shown in the filing (ranges provided in footnotes). Each line shows the shares are indirectly owned by PJB Holdings LLC, and the filing lists post-transaction beneficial ownership figures associated with those holdings (for example, 520,529 and 382,336 shares on different lines). The filing was signed by an authorized signatory on behalf of Mr. Brody on September 17, 2025.

Interactive Brokers Group, Inc. (IBKR) insider Paul J. Brody, who serves as Chief Financial Officer and a director, reported multiple sales of Class A common stock on 09/09/2025 and 09/10/2025 under a written plan intended to satisfy Rule 10b5-1. The Form 4 discloses three sell transactions totaling 212,399 shares at weighted-average prices ranging from about $60.68 to $62.92. The filing shows indirect beneficial ownership amounts after those transactions of 977,463, 892,507, and 787,601 shares in the listed rows, and references an aggregate holding related to restricted stock units. The Form 4 was signed by an authorized signatory on behalf of Mr. Brody.

Interactive Brokers Group, Inc. filing a Form 144 reports a proposed sale of 1,000,000 Class A common shares through Interactive Brokers LLC on 09/09/2025 for an aggregate market value of $61,110,000. The shares were acquired on 07/30/2025 in an in‑kind redemption from IBG Holdings LLC and the filing lists 445,246,976 shares outstanding, implying the proposed sale equals approximately 0.23% of outstanding shares. The filer reports no other securities sold in the past three months and includes the standard representation that the seller is not aware of any undisclosed material adverse information about the issuer.

The Vanguard Group reports beneficial ownership of 50,758,486 shares of Interactive Brokers Group Inc, representing 11.40% of the common stock. Vanguard indicates it has no sole voting power and 2,422,392 shares of shared voting power, while retaining 47,231,170 shares of sole dispositive power and 3,527,316 shares of shared dispositive power. The filing states these holdings are held in the ordinary course of business and are not intended to change or influence control of the issuer. The report identifies Vanguard as an investment-adviser type filer and provides its principal business address.

Interactive Brokers Group, Inc. (IBKR) Form 144 reports a proposed sale of 400,000 Class A common shares through Interactive Brokers LLC. The filing states the shares were acquired on 07/25/2024 in an in-kind redemption from IBG Holdings LLC and lists an aggregate market value of $24,716,000 (approx.) with 445,246,976 shares outstanding.

The filing shows a sale recorded on 07/28/2025 by Earl H Nemser of 400,000 shares for gross proceeds of $26,459,403. The filer represents no undisclosed material adverse information and the broker is Interactive Brokers LLC.

Interactive Brokers Group director and Vice Chairman Earl H. Nemser reported sales of Class A common stock on 08/14/2025. The Form 4 discloses two dispositions executed under a 10b5-1 plan: 33,379 shares sold at a weighted average price of $63.86 and 20,521 shares sold at a weighted average price of $64.22. The reporting tables show holdings attributable to EN Holdings LLC and list 427,812 Class A shares in total, including vested and unvested restricted stock units. The filing includes an explanatory note that EN Holdings LLC is owned by the reporting person and his affiliates and that sale prices reflect multiple transactions within the stated ranges.

Interactive Brokers Group director and Vice Chairman Earl H. Nemser reported multiple disposals of Class A common stock in a Form 4 filing. The transactions on 08/12/2025 and 08/13/2025 show sales executed by or attributed to EN Holdings LLC, an entity owned by the reporting person and affiliates. Total reported disposals include blocks of 153,000, 41,086, 4,600, 200, 200, 2,400, and 200 shares at weighted-average prices ranging roughly from $63.75 to $68.04. Following the transactions, EN Holdings LLC beneficially owned between 502,586 and 453,900 shares depending on line items; the filing also discloses 427,812 shares attributable to vested and unvested restricted stock units under the company plan.

Earl H. Nemser, Vice Chairman and director of Interactive Brokers Group, Inc. (IBKR), reported multiple sales of Class A common stock on this Form 4. The filing shows sales executed on 08/08/2025 and 08/11/2025 by EN Holdings LLC, an entity owned by the reporting person and his affiliates. The Form lists sales of 10,200 shares at a weighted average price of $65.60, 2,641 shares at $65.94, and 12,841 shares at $66.09, with price ranges disclosed in footnotes.

The filing reports post-transaction beneficial ownership figures associated with EN Holdings LLC including 671,068, 668,427 and 655,586 shares on the respective lines, and separately notes 427,812 shares attributable to vested and unvested restricted stock units awarded under the company plan. The form is signed by an authorized signatory on 08/12/2025.