Interactive Brokers Group, Inc. 4

Vice Chairman Earl H. Nemser indirectly acquired 803,568 shares of Interactive Brokers Group, Inc. Class A common stock (via EN Holdings LLC) in a non-open-market exchange transaction valued at about $70.7 million.

On July 31, 2026, Vice Chairman Earl H. Nemser reported an acquisition of 803,568 shares of Interactive Brokers Group, Inc. Class A common stock at a reference price of $87.99 per share, for an implied value of approximately $70.7 million. The shares were acquired indirectly by EN Holdings LLC, a limited liability company owned by Nemser and his affiliates, in connection with a partial redemption of its interest in IBG Holdings LLC, which received the shares from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC. Following this exchange transaction, Nemser’s indirect ownership stood at 803,568 Class A shares (valued at roughly $70.7 million at the referenced price), in addition to 429,344 Class A shares held directly, which include both vested and unvested restricted stock units granted under the amended 2007 Stock Incentive Plan.

Filing Facts

CIK

1381197

Ticker

IBKR

Form

4

Source Type

sec

Accession

0001381197-26-000143

Alert Tier

7