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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000080255-12-000347
Filing Date
2012-02-13
Accepted
2012-02-13 08:13:09
Documents
1

Document Format Files

Seq Description Document Type Size
1 IBKR AS OF 12/31/11 ibkr13gadec11.htm SC 13G/A 36173
  Complete submission text file 0000080255-12-000347.txt   37737
Mailing Address P.O. BOX 89000 BALTIMORE MD 21289
Business Address 100 EAST PRATT ST BALTIMORE MD 21202 (410)345-6603
PRICE T ROWE ASSOCIATES INC /MD/ (Filed by) CIK: 0000080255 (see all company filings)

IRS No.: 520556948 | State of Incorp.: MD | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6200 Security & Commodity Brokers, Dealers, Exchanges & Services

Mailing Address ONE PICKWICK PLAZA GREENWICH CT 06830
Business Address ONE PICKWICK PLAZA GREENWICH CT 06830 203-618-5800
Interactive Brokers Group, Inc. (Subject) CIK: 0001381197 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-82876 | Film No.: 12595290
SIC: 6211 Security Brokers, Dealers & Flotation Companies