8-K – 2026-07-31 – ibkr-20260731.htm

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8-K

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
 
FORM 8-K
 
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 31, 2026

 
 
Interactive Brokers Group, Inc.
(Exact name of Registrant as Specified in Its Charter)
 
 

Delaware

001-33440

30-0390693

(State or Other Jurisdiction
of Incorporation)

(Commission File Number)

(IRS Employer
Identification No.)

 

 

 

 

 

ONE PICKWICK PLAZA

 

GREENWICH , Connecticut

 

06830

(Address of Principal Executive Offices)

 

(Zip Code)

 

Registrant’s Telephone Number, Including Area Code: 203 618-5800

 

 

(Former Name or Former Address, if Changed Since Last Report)
 
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:

Title of each class

 

Trading
Symbol(s)

 

Name of each exchange on which registered

Common Stock, par value $.01 per share

 

IBKR

 

The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
 

Item 8.01 Other Events.
On July 31, 2026, Interactive Brokers Group, Inc. (the "Company") filed a Prospectus Supplement under Rule 424(b)(5) to register up to 920,000 shares of the Company's common stock from its shelf Registration Statement on Form S-3 (Registration Statement No. 333-297857) (the "Registration Statement") filed with the SEC on July 31, 2026. The legal opinion letter of Dechert LLP, counsel to the Company, regarding the validity of the shares is filed as Exhibit 5.3 to this Current Report on Form 8-K. The legal opinion letter is also hereby incorporated by reference into the Registration Statement, as Exhibit 5.3 thereto.
Item 9.01 Financial Statements and Exhibits.
 

 

 

 

Exhibit No.

Description

5.3

 

Opinion of Dechert

104

 

Cover Page Interactive Data File (the cover page XBRL tags are embedded within the Inline XBRL Document).

 

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

 

 

 

 

 

 

 

Date:

July 31, 2026

By:

/s/ Paul J. Brody

 

 

 

Paul J Brody
Chief Financial Officer, Treasurer and Secretary