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Sec Filings Insider Trading - Choy Benedict C K - Portfolio Holdings (Majority Ownership)
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"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>>
Insider Trading Transactions for Choy Benedict C K
CHOY BENEDICT C K: 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
2007-11-28
Sale		 2007-11-28
6:44 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 8,569 $35.12 $300,943 159,455
(Direct)		 View
2007-11-14
Sale		 2007-11-16
4:14 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 3,531 $35.03 $123,691 168,024
(Direct)		 View
2007-08-22
Sale		 2007-08-23
3:50 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 5,000 $34.94 $174,716 171,555
(Direct)		 View
2007-02-22
Sale		 2007-02-22
6:04 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 10,000 $40.58 $405,809 147,555
(Direct)		 View
2005-12-07
Sale		 2005-12-09
8:13 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 25,000 $44.87 $1,121,872 167,341
(Direct)		 View
2005-10-31-
-2005-11-02
Sale		 2005-11-02
8:30 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 10,000 $37.36 $373,608 172,304
(Direct)		 View
2005-10-25-
-2005-10-26
Sale		 2005-10-27
9:34 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 10,000 $37.16 $371,630 182,304
(Direct)		 View
2005-08-23
Sale		 2005-08-25
9:52 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 1,000 $27.75 $27,750 202,605
(Direct)		 View
2005-08-17
Sale		 2005-08-19
5:53 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 2,000 $26.6 $53,200 203,605
(Direct)		 View
2005-08-01
Sale		 2005-08-02
9:53 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 2,000 $27.35 $54,700 196,981
(Direct)		 View
2005-03-03
Sale		 2005-03-07
9:17 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 2,000 $19.61 $39,220 198,891
(Direct)		 View
2005-02-28
Sale		 2005-03-02
5:53 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 1,000 $19.53 $19,530 200,891
(Direct)		 View
2005-02-11
Sale		 2005-02-15
7:43 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 1,000 $20.93 $20,930 201,891
(Direct)		 View
2005-02-04
Sale		 2005-02-08
9:20 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 5,000 $20.44 $102,200 199,590
(Direct)		 View
2005-02-01
Sale		 2005-02-03
7:25 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 3,000 $19.07 $57,200 204,590
(Direct)		 View
2005-01-28-
-2005-01-31
Sale		 2005-02-01
2:15 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 3,256 $18.81 $61,261 207,590
(Direct)		 View
2004-10-27
Sale		 2004-10-29
2:05 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 5,000 $20.85 $104,250 210,846
(Direct)		 View
2004-10-21
Sale		 2004-10-22
2:51 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 5,000 $20.65 $103,250 215,846
(Direct)		 View
2004-08-23-
-2004-08-24
Sale		 2004-08-24
9:16 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 4,000 $16.64 $66,560 220,846
(Direct)		 View
2004-02-10
Sale		 2004-02-11
7:07 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 700 $20.78 $14,546 224,846
(Direct)		 View
2004-01-22
Sale		 2004-01-23
6:50 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 1,700 $21.25 $36,123 219,561
(Direct)		 View
2004-01-20
Sale		 2004-01-21
6:53 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 1,500 $21.24 $31,864 221,261
(Direct)		 View
2004-01-16
Sale		 2004-01-20
6:25 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 2,800 $21.09 $59,048 222,761
(Direct)		 View
2004-01-15
Sale		 2004-01-16
7:06 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 2,200 $21.02 $46,250 225,561
(Direct)		 View
2003-11-07
Sale		 2003-11-12
2:44 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 400 $19.15 $7,660 227,761
(Direct)		 View
2003-11-06
Sale		 2003-11-10
7:08 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 100 $19.15 $1,915 228,161
(Direct)		 View
2003-11-03-
-2003-11-04
Sale		 2003-11-05
3:18 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 1,344 $19.15 $25,738 228,261
(Direct)		 View
Other transactions:
Transaction
& Date		 Reported
Date		 Company Symbol Insider
Relationship		 Shares
Traded		 Average
Price		 Total
Amount		 Shares
Ownership		 Filing
2008-01-25
Exercise		 2008-02-01
9:42 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 9,000 $10.75 $96,750 168,455
(Indirect)		 View
2007-05-11
Exercise		 2007-05-15
8:36 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 29,000 $11.98 $347,350 176,555
(Direct)		 View
2006-12-29
Gift		 2007-01-12
6:47 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President, Technol
Director)		 2,500 $39.25 $98,125 157,555
(Direct)		 View
2006-11-22
Exercise		 2006-11-22
8:23 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President, Technol
Director)		 7,286 $47 $342,442 160,055
(Direct)		 View
2005-11-15
Exercise
Tax Withholding		 2005-11-17
9:18 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 33,963 $17.09 $580,468 192,341
(Direct)		 View
2005-08-03
Exercise
Tax Withholding		 2005-08-04
9:37 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 31,376 $19.76 $619,996 205,605
(Direct)		 View
2005-02-08
Exercise
Tax Withholding		 2005-02-08
9:20 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 10,609 $14.19 $150,498 202,891
(Direct)		 View
2004-02-09
Exercise		 2004-02-11
7:07 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 22,015 $15.26 $335,994 225,546
(Direct)		 View
2003-10-31
Other		 2003-11-04
7:53 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 301 $13.59 $4,091 229,605
(Direct)		 View
2003-10-16
Exercise		 2003-10-17
5:54 pm		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 12,000 $12 $144,000 229,304
(Direct)		 View
Stock options: Exercise, Award, Grant, Conversion
Transaction
& Date		 Reported
Date		 Exercisable
Expiration		 Company Symbol Insider
Relationship		 Shares
Traded		 Conversion
Price		 Shares
Ownership		 Filing
2008-12-01
Option Award		 2008-12-15
8:14 pm		 2009-12-01
2018-12-01		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Sr. VP, Technology Development
Director)		 50,000 $20.85 75,000
(Direct)		 View
2007-09-04
Option Award		 2008-02-12
8:48 pm		 2008-09-04
2017-09-04		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 15,000 $35.86 25,000
(Direct)		 View
2008-01-25
Exercise		 2008-02-01
9:42 pm		 2008-01-25
2008-06-01		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 9,000 $10.75 25,000
(Direct)		 View
2007-05-11
Exercise		 2007-05-15
8:36 pm		 2006-06-01
2008-06-01		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 9,000 $10.75 20,000
(Direct)		 View
2007-05-11
Exercise		 2007-05-15
8:36 pm		 2006-06-01
2008-06-01		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 20,000 $12.53 0
(Direct)		 View
2005-11-15
Exercise		 2005-11-17
9:18 pm		 2005-06-01
2008-06-01		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 27,000 $10.75 13,000
(Direct)		 View
2005-08-03
Exercise		 2005-08-04
9:37 pm		 2004-12-01
2006-12-01		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 20,000 $15.5 40,000
(Direct)		 View
2005-02-08
Exercise		 2005-02-08
9:20 pm		 2002-06-01
2005-06-01		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 7,000 $10.75 44,000
(Direct)		 View
2004-09-01
Option Award		 2004-09-02
7:35 pm		 2008-09-01
2011-09-01		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President)		 10,000 $17.06 5
(Direct)		 View
2004-02-09
Exercise		 2004-02-11
7:07 pm		 2000-03-03
2004-03-03		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 10,000 $12 5
(Direct)		 View
2004-02-09
Exercise		 2004-02-11
7:07 pm		 2001-03-03
2004-03-03		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 4,000 $12 4
(Direct)		 View
2003-10-16
Exercise		 2003-10-17
5:54 pm		 2001-03-03
2004-03-03		 SUPERTEX INC SUPX CHOY BENEDICT C K
(Senior Vice President
Director)		 12,000 $12 6
(Direct)		 View