Director Lori A. Conkling filed a Form 4 with the SEC on November 3, 2026, disclosing a purchase of 25 shares of Interactive Brokers Group, Inc. Class A common stock on November 2, 2026.

Key Highlights

  • Reporting person: Lori A. Conkling, listed as a Director of Interactive Brokers Group, Inc. (NASDAQ:IBKR)
  • Transaction: Purchase (Code P) of 25 shares of Class A common stock on November 2, 2026
  • Price per share: $78.44
  • Beneficial ownership following transaction: 2,609 shares, held directly
  • Rule 10b5-1 plan: The filing indicates the transaction was made pursuant to a contract, instruction, or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c)
  • Ownership composition: The 2,609-share total includes acquired securities, Class A shares attributable to vested restricted stock units under the 2007 Stock Incentive Plan as amended, and unvested restricted stock units under the same plan

Conkling's November 2026 Open-Market Purchase Under 10b5-1 Plan

According to the filing, Lori A. Conkling, a director of Interactive Brokers Group, Inc., purchased 25 shares of the company's Class A common stock on November 2, 2026, at a price of $78.44 per share. The transaction was coded "P," indicating an open-market purchase. The filing was signed on November 3, 2026, by Arthur Frye as authorized signatory for Lori A. Conkling.

The filing discloses that the transaction was made pursuant to a contract, instruction, or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c), as indicated by the checked box on the form. Following the reported transaction, Conkling's direct beneficial ownership stands at 2,609 shares of Class A common stock.

The filing includes a footnote clarifying that the 2,609-share total reflects not only securities directly acquired, but also Class A common stock attributable to vested restricted stock units awarded under the company's 2007 Stock Incentive Plan as amended, as well as unvested restricted stock units awarded under the same plan. No derivative securities transactions were reported in Table II of the filing.

What Was Disclosed

Director Lori A. Conkling reported the purchase of 25 shares of Interactive Brokers Group Class A common stock at $78.44 per share on November 2, 2026, under a Rule 10b5-1 plan, bringing her directly held beneficial ownership to 2,609 shares.