SC 13D/A | SEC Filings Hub

Filing metadata

Accession number: 0001193125-13-020856
Form type: SC 13D
Filer: Interactive Brokers Group, Inc.
CIK: CIK 1381197
Filed: Jan 23, 2013
Reporting period: Jan 22, 2013
Description: Activist stake

Documents

0001193125-13-020856-index.htm

Complete submission

0001193125-13-020856.txt

directory listing

Filed by

Interactive Brokers Group, Inc.