Filing excerpt
On July 31, 2026, Interactive Brokers Group, Inc. (the “Company”) filed a Prospectus Supplement under Rule 424(b)(5) to take down 2,499,567 shares of the Company’s common stock off its shelf Registration Statement on Form S-3 (Registration Statement No. 333-297857) (the “Registration Statement”) filed with the SEC on July 31, 2026.