Insider Trading - Slezak Mark - Portfolio Holdings (Majority Ownership)

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Sec Filings Insider Trading - Slezak Mark - Portfolio Holdings (Majority Ownership)

"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch ==>> What is insider trading>>

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Insider Trading Transactions for Slezak Mark

SLEZAK MARK: Insider Trading and Stock Options

Common stock purchase or sale:

Transaction & Date	Reported Date	Company	Symbol	Insider Relationship	Shares Traded	Average Price	Total Amount	Shares Ownership	Filing
2009-05-22 Purchase	2009-05-27 4:15 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	504,500	$3.05	$1,538,725	4,006,136 (Indirect)	View
2009-03-16 Purchase	2009-03-18 4:15 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	87,658	$4.98	$436,537	3,501,636 (Indirect)	View
2009-03-12- -2009-03-13 Purchase	2009-03-16 4:22 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	15,898	$4.55	$72,339	3,413,978 (Indirect)	View
2009-03-10- -2009-03-11 Purchase	2009-03-12 4:23 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	36,021	$3.689	$132,894	3,398,080 (Indirect)	View
2009-03-06- -2009-03-09 Purchase	2009-03-10 4:08 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	25,187	$2.972	$74,862	3,362,059 (Indirect)	View
2008-12-11- -2008-12-12 Purchase	2008-12-15 5:12 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	58,252	$4.574	$266,427	3,336,872 (Indirect)	View
2008-12-09- -2008-12-10 Purchase	2008-12-11 4:31 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	10,228	$4.177	$42,718	3,278,620 (Indirect)	View
2008-12-04- -2008-12-05 Purchase	2008-12-08 4:53 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	29,902	$3.61	$107,960	3,268,392 (Indirect)	View
2008-12-02 Purchase	2008-12-04 5:31 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	13,460	$3.498	$47,078	3,238,490 (Indirect)	View

Other transactions:

Transaction & Date	Reported Date	Company	Symbol	Insider Relationship	Shares Traded	Average Price	Total Amount	Shares Ownership	Filing
2007-11-06 Exercise Other Purchase	2007-11-08 4:53 pm	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	5,015,185	$0.2003	$1,004,579	36,486 (Direct Indirect)	View

Stock options: Exercise, Award, Grant, Conversion

Transaction & Date	Reported Date	Exercisable Expiration	Company	Symbol	Insider Relationship	Shares Traded	Conversion Price	Shares Ownership	Filing
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A N/A	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	22,857	$0	0 (Direct)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A N/A	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	1,190,706	$0	0 (Indirect)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A N/A	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	22,857	$0	0 (Indirect)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A N/A	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	411,428	$0	0 (Indirect)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A N/A	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	2,145,397	$0	0 (Indirect)	View
2007-11-06 Exercise	2007-11-08 4:53 pm	N/A 2007-11-06	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	114,809	$8.75	0 (Indirect)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A N/A	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	777,142	$0	0 (Indirect)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A 2011-04-12	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	136,340	$0	0 (Indirect)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A 2011-04-12	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	136,340	$0	136,340 (Indirect)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A N/A	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	34,285	$0	0 (Indirect)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A 2011-04-12	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	6,015	$0	0 (Indirect)	View
2007-11-06 Purchase	2007-11-08 4:53 pm	N/A 2011-04-12	NANOSPHERE INC	NSPH	SLEZAK MARK (Director 10% owner)	6,015	$0	6,015 (Indirect)	View