Interactive Brokers Group Inc. (IBKR)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	41,652,024	$1,724,289,702	0.04%
2.	Vanguard Group Inc	41,406,084	$1,714,108,362	0.03%
3.	State Street Corp	15,083,076	$624,401,639	0.03%
4.	Kayne Anderson Rudnick Investment Management Llc	12,683,116	$525,049,414	1.29%
5.	Jpmorgan Chase & Co	12,386,864	$512,785,276	0.04%