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.	Bank Of New York Mellon Corp	3,541,384	$146,604,349	0.03%
3.	Sumitomo Mitsui Trust Holdings, Inc.	2,159,880	$89,413,632	0.06%
4.	Timessquare Capital Management, Llc	1,569,000	$64,952,678	1.05%
5.	Principal Financial Group Inc	1,434,700	$59,392,992	0.03%