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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000902664-19-002034
Filing Date
2019-04-25
Accepted
2019-04-25 14:54:44
Documents
1
Period of Report
2019-04-18

Document Format Files

Seq Description Document Type Size
1 ownership.html 3  
1 ownership.xml 3 4383
  Complete submission text file 0000902664-19-002034.txt   6242
Mailing Address ONE PICKWICK PLAZA GREENWICH CT 06830
Business Address ONE PICKWICK PLAZA GREENWICH CT 06830 203-618-5800
Interactive Brokers Group, Inc. (Issuer) CIK: 0001381197 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 6211 Security Brokers, Dealers & Flotation Companies

Mailing Address 63 CROSBY STREET 4TH FLOOR NEW YORK NY 10012
Business Address 63 CROSBY STREET 4TH FLOOR NEW YORK NY 10012 6467597903
Echinus Advisors, LLC (Reporting) CIK: 0001602970 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-33440 | Film No.: 19767030

Mailing Address 63 CROSBY STREET, 4TH FLOOR NEW YORK NY 10012
Business Address
Uhde Philip (Reporting) CIK: 0001772442 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-33440 | Film No.: 19767029