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Filing Details

Accession Number:: 0001195897-11-000001
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2011-08-24 21:50:52
Reporting Period:: 2011-08-23

Filing Date:: 2011-08-24
Accepted Time:: 2011-08-24 21:50:52
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
730000	Supertex Inc	SUPX	Semiconductors & Related Devices (3674)	942328535

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1195897	Mark W Loveless	1235 Bordeaux Dr. Sunnyvale CA 94089		Yes	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2011-08-23	10,000	$17.06	11,600	No	4	M	Direct
Common Stock	Disposition	2011-08-23	100	$18.85	11,500	No	4	S	Direct
Common Stock	Disposition	2011-08-23	200	$18.87	11,300	No	4	S	Direct
Common Stock	Disposition	2011-08-23	300	$18.85	11,000	No	4	S	Direct
Common Stock	Disposition	2011-08-23	410	$18.89	10,590	No	4	S	Direct
Common Stock	Disposition	2011-08-23	300	$18.86	10,290	No	4	S	Direct
Common Stock	Disposition	2011-08-23	100	$18.80	10,190	No	4	S	Direct
Common Stock	Disposition	2011-08-23	500	$18.81	9,690	No	4	S	Direct
Common Stock	Disposition	2011-08-23	710	$18.80	8,980	No	4	S	Direct
Common Stock	Disposition	2011-08-23	700	$18.87	8,280	No	4	S	Direct
Common Stock	Disposition	2011-08-23	800	$18.80	7,480	No	4	S	Direct
Common Stock	Disposition	2011-08-23	100	$18.86	7,380	No	4	S	Direct
Common Stock	Disposition	2011-08-23	200	$18.81	7,180	No	4	S	Direct
Common Stock	Disposition	2011-08-23	200	$18.80	6,980	No	4	S	Direct
Common Stock	Disposition	2011-08-23	400	$18.83	6,580	No	4	S	Direct
Common Stock	Disposition	2011-08-23	19	$18.85	6,561	No	4	S	Direct
Common Stock	Disposition	2011-08-23	84	$18.83	6,477	No	4	S	Direct
Common Stock	Disposition	2011-08-23	300	$18.80	6,177	No	4	S	Direct
Common Stock	Disposition	2011-08-23	100	$18.83	6,077	No	4	S	Direct
Common Stock	Disposition	2011-08-23	1,097	$18.80	4,980	No	4	S	Direct
Common Stock	Disposition	2011-08-23	300	$18.81	4,680	No	4	S	Direct
Commmon Stock	Disposition	2011-08-23	38	$18.82	4,642	No	4	S	Direct
Common Stock	Disposition	2011-08-23	100	$18.81	4,542	No	4	S	Direct
Common Stock	Disposition	2011-08-23	1,000	$18.80	3,542	No	4	S	Direct
Common Stock	Disposition	2011-08-23	7	$18.83	3,535	No	4	S	Direct
Common Stock	Disposition	2011-08-23	1,275	$18.80	2,260	No	4	S	Direct
Common Stock	Disposition	2011-08-23	100	$18.81	2,160	No	4	S	Direct
Common Stock	Disposition	2011-08-23	180	$18.80	1,980	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	ISO stock options (to exercise common stock)	Disposition	2011-08-23	2,000	$17.06	2,000	$17.06
Common Stock	ISO stock options (to exercise common stock)	Disposition	2011-08-23	2,000	$17.06	2,000	$17.06
Common Stock	ISO stock options (to exercise common stock)	Disposition	2011-08-23	2,000	$17.06	2,000	$17.06
Common Stock	ISO stock options (to exercise common stock)	Disposition	2011-08-23	2,000	$17.06	2,000	$17.06
Common Stock	ISO stock options (to exercise common stock)	Disposition	2011-08-23	2,000	$17.06	2,000	$17.06

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
28,000	2005-09-01	2011-09-01	No	4	M	Direct
26,000	2006-09-01	2011-09-01	No	4	M	Direct
24,000	2007-09-01	2011-09-01	No	4	M	Direct
22,000	2008-09-01	2011-09-01	No	4	M	Direct
20,000	2009-09-01	2011-09-01	No	4	M	Direct

Footnotes

NQ Option (to exercise common stock). Exercise Price: $35.86. Shares granted: 5,000. Shares Exercisable: 4,000. 1,000 shares exercisable on 9/4/2011. Expiration Date: 9/4/2017. Held Direct.
NQ Option (to exercise common stock). Exercise Price: $29.70. Shares granted: 5,000. Shares Exercisable: 3,000. 1,000 shares exercisable on 9/2/2011. 1,000 shares exercisable on 9/2/2012. Expiration Date: 9/2/2018. Held Direct.
NQ Option (to exercise common stock). Exercise Price: $25.84. Shares granted: 5,000. Shares Exercisable: 2,000. 1,000 shares exercisable on 9/1/2011. 1,000 shares exercisable on 9/1/2012. 1,000 shares exercisable on 9/1/2013. Expiration Date: 9/1/2019. Held Direct.
NQ Option (to exercise common stock). Exercise Price: $22.01. Shares granted: 5,000. Shares Exercisable: 1,000. 1,000 shares exercisable on 9/1/2011. 1,000 shares exercisable on 9/1/2012. 1,000 shares exercisable on 9/1/2013. 1,000 shares exercisable on 9/1/2014. Expiration Date: 9/1/2020. Held Direct.