Welcome to our dedicated page for Interactive Brokers Group SEC filings (Ticker: IBKR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Interactive Brokers Group, Inc. (NASDAQ: IBKR) SEC filings page on Stock Titan provides access to the company’s regulatory disclosures as a Nasdaq Global Select Market issuer and S&P 500 member. Interactive Brokers is an automated global electronic broker whose affiliates provide trade execution and custody of securities, commodities, foreign exchange, and forecast contracts across more than 160 markets worldwide.
Key filing types for IBKR include annual reports on Form 10-K and quarterly reports on Form 10-Q, which describe the firm’s electronic brokerage operations, risk management, and financial condition. Current reports on Form 8-K disclose material events, such as the release of quarterly financial results or capital markets transactions. For example, the company has used Form 8-K to furnish earnings press releases and to report the filing of a prospectus supplement under a shelf registration statement to offer shares of common stock.
Investors can also review registration statements and related exhibits that detail securities offerings, as well as other filings that reflect Interactive Brokers’ status as a Delaware corporation with common stock listed under the symbol IBKR. These documents help explain how the company structures its capital, manages regulatory obligations, and communicates significant developments to the market.
On Stock Titan, AI-powered tools summarize lengthy filings, highlight important sections, and clarify complex language. Real-time updates from the SEC’s EDGAR system ensure that new IBKR filings, including 10-Ks, 10-Qs, 8-Ks, and other relevant forms, appear promptly. Users can also examine insider-related disclosures such as Form 4 filings to understand equity transactions by officers, directors, or significant shareholders. This combination of primary documents and AI-generated insights can help investors and researchers interpret Interactive Brokers’ regulatory reporting more efficiently.
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.
Interactive Brokers Group, Inc. (IBKR) Vice Chairman and director Earl H. Nemser reported several sales of Class A common stock executed through EN Holdings LLC. The Form 4 discloses those disposals and the resulting beneficial ownership figures held by EN Holdings LLC.
On 08/06/2025 Nemser sold 12,641 shares at a weighted average price of $63.47 and 200 shares at $64.16. On 08/07/2025 he sold 12,400 shares at a weighted average price of $63.94 and 441 shares at $64.35, a total of 25,682 shares sold. The filing lists the amounts of Class A shares beneficially owned following each reported transaction as 694,309, 694,109, 681,709, and 681,268, respectively.
Footnotes state that EN Holdings LLC is owned by the reporting person and his affiliates and that the reported prices are weighted averages across price ranges. The filing also notes 427,812 shares attributable to vested and unvested restricted stock units awarded under the company’s 2007 Stock Incentive Plan.
Form 4 filed 08/06/2025 reports insider sales by Earl H. Nemser (Vice Chairman and Director) of Interactive Brokers Group, Inc. (IBKR).
Nemser, through EN Holdings LLC, sold 12,841 Class A shares on 08/04/2025 at a weighted-average price of $64.54 and sold 11,041 and 1,800 Class A shares on 08/05/2025 at weighted-average prices of $63.64 and $64.84, respectively, for a total of 25,682 shares sold. Following these transactions, the filing shows EN Holdings LLC beneficially owning 706,950 Class A shares (down from 719,791). The filing also discloses direct ownership of 427,812 Class A shares attributable to vested and unvested restricted stock units under the amended 2007 Stock Incentive Plan. Footnotes provide transaction price ranges and offer to supply detailed breakdowns on request.
Interactive Brokers Group (IBKR) Form 4 highlights: Vice-Chairman & Director Earl H. Nemser, through affiliate EN Holdings LLC, sold 39,786 Class A shares on 30-Jul-2025 in two open-market transactions:
- 32,386 shares at a weighted average price of $66.32
- 7,400 shares at a weighted average price of $66.64
Following the sales, Nemser indirectly owns 360,114 shares via EN Holdings LLC and directly holds 427,812 shares (including vested and unvested RSUs), leaving him with an estimated total stake of 787,926 shares. The filing does not state that the trades were made under a Rule 10b5-1 trading plan.
The transactions reduce Nemser’s indirect position by roughly 10% but leave his overall economic interest substantial, suggesting liquidity rather than exit. No derivative activity was reported.
Insider: Earl H. Nemser, Vice Chairman & Director of Interactive Brokers Group (IBKR).
Transaction: On 07/28/2025 Nemser executed an open-market sale (Code S) of 100 Class A shares at $65.90 per share through his affiliate EN Holdings LLC.
Post-transaction holdings: 399,900 Class A shares held indirectly via EN Holdings LLC and 427,812 shares held directly (vested & unvested RSUs), totaling roughly 827,712 shares.
The sale represents <0.01 % of both IBKR’s outstanding shares and Nemser’s reported stake, signalling no meaningful change in ownership or control. No derivative security activity was disclosed.
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