Interactive Brokers Group, Inc.

General form for quarterly reports under Section 13 or 15(d)

Other Events

Other Events

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Prospectus Supplement for Primary Offering

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Submission of Matters to a Vote of Security Holders

Results of Operations and Financial Condition

Annual report pursuant to Section 13 or 15(d) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Annual report pursuant to Section 13 or 15(d)

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

Other Events

Prospectus Supplement for Primary Offering

Results of Operations and Financial Condition

Definitive information statement

General form for quarterly reports under Section 13 or 15(d)

No description available

Submission of Matters to a Vote of Security Holders

Results of Operations and Financial Condition

Annual Report Scanned (Paper)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d) (amendment)

Annual report pursuant to Section 13 or 15(d)

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

8.01,9.01

Prospectus Supplement for Primary Offering

2.02,9.01

General form for quarterly reports under Section 13 or 15(d)

5.07,9.01

2.02,9.01

Annual Report Scanned (Paper)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Annual report pursuant to Section 13 or 15(d)

2.02,9.01

5.02,9.01

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Automatic Shelf Registration

Prospectus Supplement for Primary Offering

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Prospectus Supplement for Primary Offering

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Prospectus Supplement for Primary Offering

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Prospectus Supplement for Primary Offering

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Prospectus Supplement for Primary Offering

Notification of the removal from listing and registration of matured redeemed or retired securities

Registration of Securities on Exchange

Certification of approval for listing and registration on a national securities exchange

Letter from the SEC

Correspondence with the SEC

Prospectus Supplement for Primary Offering

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Notification of the removal from listing and registration of matured redeemed or retired securities

Registration of Securities on Exchange

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Annual Report Scanned (Paper)

Annual Report Scanned (Paper)

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Annual Report Scanned (Paper)

Annual Report Scanned (Paper)

Letter from the SEC

Conkling Lori A

Conkling Lori A

Conkling Lori A

Nemser Earl H

Conkling Lori A

Conkling Lori A

Nemser Earl H

Frank Thomas AJ

Mendonca Denis

Brody Paul Jonathan

Galik Milan

Conkling Lori A

Harris Lawrence E

Harris Lawrence E

Conkling Lori A

Conkling Lori A

Nemser Earl H

Bright Jill