Interactive Brokers Group Inc. (IBKR)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Vanguard Group Inc	52,859,085	$3,637,233,639	0.05%
2.	Blackrock, Inc.	30,968,967	$2,130,974,642	0.04%
3.	State Street Corp	18,648,758	$1,283,221,038	0.04%
4.	Kayne Anderson Rudnick Investment Management Llc	12,174,526	$837,729,181	2.04%
5.	Wellington Management Group Llp	10,901,171	$750,109,576	0.13%