Interactive Brokers Group, Inc. (IBKR)
Financial: Investment Brokerage - National
Schedule 13D and 13G filings submitted since 09/30/2011
| Filing Company | Date of Filing |
Total Reported Shares Owned |
Shares Reported on 13F |
|
|---|---|---|---|---|
| SC 13G/A | BAMCO INC /NY/ | 06/10/2011 | 995,758 | 108,100 |
| SC 13G/A | BLACKROCK INC. | 02/09/2012 | 4,238,008 | 58,890 |
*Shares are split adjusted
