Aptose Biosciences Inc. (APTO)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Bleichroeder Lp	83,333.333,333,333	$563,250	0.14%
2.	Sigma Planning Corp	23,446.133,333,333	$158,472	0%
3.	Drw Securities, Llc	19,760.966,666,667	$133,564	0%
4.	Ubs Group Ag	1,927.5,666,666,667	$13,011	0%
5.	Cetera Investment Advisers	640.2	$4,402	0%