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Supertex Inc (SUPX)

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Ticker: SUPX
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Tsang Michael
VP, Operations & Product Eng
1 sale — total 346,500 USD
Sale 10 Feb 2014
Value US$4,461,685.77 | Price 284.00 | Shares 50,680
Sale 30 Jan 2014
Value US$425,815.93 | Price 405.77 | Shares 54,647
Sale 25 Nov 2013
Value US$152,100.00 | Price 25.35 | Shares 6,000
Sale 7 Nov 2013
Value US$14,805.44 | Price 26.02 | Shares 569
Sale 6 Nov 2013
Value US$461,353.23 | Price 26.15 | Shares 17,645
Sale 5 Nov 2013
Value US$52,740.00 | Price 26.37 | Shares 2,000
Sale 30 Jul 2013
Value US$189,000.00 | Price 27.00 | Shares 7,000
Sale 29 Jul 2013
Value US$185,500.00 | Price 26.50 | Shares 7,000
Buy 31 Aug 2012
Value US$6,856.00 | Price 17.14 | Shares 400
Buy 2 Aug 2012
Value US$6,632.00 | Price 16.58 | Shares 400
Sale 13 Jun 2012
Value US$90.20 | Price 18.04 | Shares 5
Sale 12 Jun 2012
Value US$18,400.00 | Price 18.40 | Shares 1,000
Sale 12 Jun 2012
Value US$11,322.50 | Price 18.29 | Shares 619
Sale 12 Jun 2012
Value US$5,487.03 | Price 18.29 | Shares 300
Sale 12 Jun 2012
Value US$1,500.93 | Price 18.53 | Shares 81
Sale 11 Jun 2012
Value US$1,857.10 | Price 18.57 | Shares 100
Sale 8 Jun 2012
Value US$18,800.00 | Price 18.80 | Shares 1,000
Sale 7 Jun 2012
Value US$18,920.00 | Price 18.92 | Shares 1,000
Sale 5 Jun 2012
Value US$18,700.00 | Price 18.70 | Shares 1,000
Sale 14 Mar 2012
Value US$9,040.00 | Price 18.08 | Shares 500
Sale 14 Mar 2012
Value US$5,370.03 | Price 17.90 | Shares 300
Sale 14 Mar 2012
Value US$7,160.40 | Price 17.90 | Shares 400
Sale 14 Mar 2012
Value US$7,165.00 | Price 17.91 | Shares 400
Sale 14 Mar 2012
Value US$5,373.03 | Price 17.91 | Shares 300
Sale 14 Mar 2012
Value US$5,370.03 | Price 17.90 | Shares 300
Sale 14 Mar 2012
Value US$3,574.02 | Price 17.87 | Shares 200
Sale 14 Mar 2012
Value US$5,256.75 | Price 17.88 | Shares 294
Sale 13 Mar 2012
Value US$1,805.00 | Price 18.05 | Shares 100
Sale 13 Mar 2012
Value US$16,200.09 | Price 18.00 | Shares 900
Sale 13 Mar 2012
Value US$9,010.00 | Price 18.02 | Shares 500
Sale 13 Mar 2012
Value US$9,015.05 | Price 18.03 | Shares 500
Sale 13 Mar 2012
Value US$9,010.05 | Price 18.02 | Shares 500
Sale 13 Mar 2012
Value US$1,805.00 | Price 18.05 | Shares 100
Sale 13 Mar 2012
Value US$3,770.44 | Price 18.04 | Shares 209
Sale 13 Mar 2012
Value US$3,445.64 | Price 18.04 | Shares 191
Sale 13 Mar 2012
Value US$9,025.00 | Price 18.05 | Shares 500
Sale 13 Mar 2012
Value US$3,704.35 | Price 18.07 | Shares 205
Sale 12 Mar 2012
Value US$9,010.00 | Price 18.02 | Shares 500
Sale 12 Mar 2012
Value US$9,005.00 | Price 18.01 | Shares 500
Sale 12 Mar 2012
Value US$9,000.50 | Price 18.00 | Shares 500
Sale 12 Mar 2012
Value US$18,000.00 | Price 18.00 | Shares 1,000
Sale 12 Mar 2012
Value US$1,802.01 | Price 18.02 | Shares 100
Sale 12 Mar 2012
Value US$7,200.00 | Price 18.00 | Shares 400
Sale 12 Mar 2012
Value US$9,005.00 | Price 18.01 | Shares 500
Sale 12 Mar 2012
Value US$9,015.40 | Price 18.03 | Shares 500
Sale 12 Mar 2012
Value US$9,010.00 | Price 18.02 | Shares 500
Sale 12 Mar 2012
Value US$9,020.00 | Price 18.04 | Shares 500
Sale 12 Mar 2012
Value US$9,010.00 | Price 18.02 | Shares 500
Sale 9 Mar 2012
Value US$36,098.04 | Price 18.04 | Shares 2,001
Sale 13 Feb 2012
Value US$3,798.00 | Price 18.99 | Shares 200
Sale 13 Feb 2012
Value US$551.87 | Price 19.03 | Shares 29
Sale 13 Feb 2012
Value US$1,909.00 | Price 19.09 | Shares 100
Sale 13 Feb 2012
Value US$1,902.00 | Price 19.02 | Shares 100
Sale 13 Feb 2012
Value US$5,727.00 | Price 19.09 | Shares 300
Sale 13 Feb 2012
Value US$1,910.00 | Price 19.10 | Shares 100
Sale 13 Feb 2012
Value US$1,902.00 | Price 19.02 | Shares 100
Sale 13 Feb 2012
Value US$19,263.36 | Price 18.96 | Shares 1,016
Sale 27 Jan 2012
Value US$95,000.00 | Price 19.00 | Shares 5,000
Sale 31 Aug 2011
Value US$88,200.00 | Price 19.60 | Shares 4,500
Sale 31 Aug 2011
Value US$15,688.00 | Price 19.61 | Shares 800
Sale 31 Aug 2011
Value US$41,244.00 | Price 19.64 | Shares 2,100
Sale 31 Aug 2011
Value US$5,895.00 | Price 19.65 | Shares 300
Sale 31 Aug 2011
Value US$7,864.00 | Price 19.66 | Shares 400
Sale 31 Aug 2011
Value US$1,966.50 | Price 19.67 | Shares 100
Sale 31 Aug 2011
Value US$3,937.00 | Price 19.69 | Shares 200
Sale 31 Aug 2011
Value US$29,580.00 | Price 19.72 | Shares 1,500
Sale 31 Aug 2011
Value US$1,973.00 | Price 19.73 | Shares 100
Sale 26 Aug 2011
Value US$19,217.30 | Price 19.22 | Shares 1,000
Sale 26 Aug 2011
Value US$110,940.00 | Price 18.49 | Shares 6,000
Sale 25 Aug 2011
Value US$76,505.60 | Price 19.13 | Shares 4,000
Sale 23 Aug 2011
Value US$28,530.00 | Price 19.02 | Shares 1,500
Sale 23 Aug 2011
Value US$1,906.00 | Price 19.06 | Shares 100
Sale 23 Aug 2011
Value US$1,445.52 | Price 19.02 | Shares 76
Sale 23 Aug 2011
Value US$457.92 | Price 19.08 | Shares 24
Sale 23 Aug 2011
Value US$3,804.00 | Price 19.02 | Shares 200
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2014-02-11 2014-02-10 S Sale Tsang Michael

VP, Operations & Product Eng

Officer
50,680 +11.9%
284.00
US$4,461,686 		50,680 +11.9% 284.00 US$4,461,686
2014-01-30 2014-01-30 S Sale Tsang Michael

VP, Operations & Product Eng

Officer
54,647 +45.2%
405.77
US$425,816 		54,647 +45.2% 405.77 US$425,816
2013-11-25 2013-11-25 S Sale FENG MILTON Non-Executive Director
81,332 +40.4%
155.06
US$2,489,104 		81,332 +40.4% 155.06 US$2,489,104
2013-11-08 2013-11-07 S Sale CHOY BENEDICT C K

Sr. VP, Technology Development

Executive Director
569 -0.9%
26.02
US$14,805 		569 -0.9% 26.02 US$14,805
2013-11-08 2013-11-06 S Sale CHOY BENEDICT C K

Sr. VP, Technology Development

Executive Director
17,645 -21.5%
26.15
US$461,353 		17,645 -21.5% 26.15 US$461,353
2013-11-07 2013-11-05 S Sale CHOY BENEDICT C K

Sr. VP, Technology Development

Executive Director
2,000 -2.4%
26.37
US$52,740 		2,000 -2.4% 26.37 US$52,740
2013-07-31 2013-07-30 S Sale Tsang Michael

VP, Operations & Product Eng.

Officer
7,000 -100.0%
27.00
US$189,000 		7,000 -100.0% 27.00 US$189,000
2013-07-31 2013-07-29 S Sale Tsang Michael

VP, Operations & Product Eng.

Officer
7,000 -100.0%
26.50
US$185,500 		7,000 -100.0% 26.50 US$185,500
2012-09-04 2012-08-31 B Purchase Kagel Phil

VP, Finance & CFO

Officer
400 +8.7%
17.14
US$6,856 		400 +8.7% 17.14 US$6,856
2012-08-06 2012-08-02 B Purchase Kagel Phil

VP, Finance & CFO

Officer
400 +9.5%
16.58
US$6,632 		400 +9.5% 16.58 US$6,632
2012-06-19 2012-06-13 S Sale CHOY BENEDICT C K

Sr. VP, Tech Development

Executive Director
5 -0.0%
18.04
US$90 		5 -0.0% 18.04 US$90
2012-06-14 2012-06-12 S Sale CHOY BENEDICT C K

Sr. VP, Technology Development

Executive Director
1,000 -0.7%
18.40
US$18,400 		1,000 -0.7% 18.40 US$18,400
2012-06-14 2012-06-12 S Sale CHOY BENEDICT C K

Sr. VP, Technology Development

Executive Director
619 -0.4%
18.29
US$11,323 		619 -0.4% 18.29 US$11,323
2012-06-14 2012-06-12 S Sale CHOY BENEDICT C K

Sr. VP, Technology Development

Executive Director
300 -0.2%
18.29
US$5,487 		300 -0.2% 18.29 US$5,487
2012-06-14 2012-06-12 S Sale CHOY BENEDICT C K

Sr. VP, Technology Development

Executive Director
81 -0.1%
18.53
US$1,501 		81 -0.1% 18.53 US$1,501
2012-06-19 2012-06-11 S Sale CHOY BENEDICT C K

Sr. VP, Tech Development

Executive Director
100 -0.1%
18.57
US$1,857 		100 -0.1% 18.57 US$1,857
2012-06-19 2012-06-08 S Sale CHOY BENEDICT C K

Sr. VP, Tech Development

Executive Director
1,000 -0.7%
18.80
US$18,800 		1,000 -0.7% 18.80 US$18,800
2012-06-11 2012-06-07 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
1,000 -0.7%
18.92
US$18,920 		1,000 -0.7% 18.92 US$18,920
2012-06-11 2012-06-05 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
1,000 -0.7%
18.70
US$18,700 		1,000 -0.7% 18.70 US$18,700
2012-03-15 2012-03-14 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.08
US$9,040 		500 -0.3% 18.08 US$9,040
2012-03-15 2012-03-14 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
300 -0.2%
17.90
US$5,370 		300 -0.2% 17.90 US$5,370
2012-03-15 2012-03-14 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
400 -0.3%
17.90
US$7,160 		400 -0.3% 17.90 US$7,160
2012-03-15 2012-03-14 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
400 -0.3%
17.91
US$7,165 		400 -0.3% 17.91 US$7,165
2012-03-15 2012-03-14 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
300 -0.2%
17.91
US$5,373 		300 -0.2% 17.91 US$5,373
2012-03-15 2012-03-14 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
300 -0.2%
17.90
US$5,370 		300 -0.2% 17.90 US$5,370
2012-03-15 2012-03-14 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
200 -0.1%
17.87
US$3,574 		200 -0.1% 17.87 US$3,574
2012-03-15 2012-03-14 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
294 -0.2%
17.88
US$5,257 		294 -0.2% 17.88 US$5,257
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
100 -0.1%
18.05
US$1,805 		100 -0.1% 18.05 US$1,805
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
900 -0.6%
18.00
US$16,200 		900 -0.6% 18.00 US$16,200
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.02
US$9,010 		500 -0.3% 18.02 US$9,010
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.03
US$9,015 		500 -0.3% 18.03 US$9,015
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.02
US$9,010 		500 -0.3% 18.02 US$9,010
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
100 -0.1%
18.05
US$1,805 		100 -0.1% 18.05 US$1,805
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
209 -0.1%
18.04
US$3,770 		209 -0.1% 18.04 US$3,770
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
191 -0.1%
18.04
US$3,446 		191 -0.1% 18.04 US$3,446
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.05
US$9,025 		500 -0.3% 18.05 US$9,025
2012-03-15 2012-03-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
205 -0.1%
18.07
US$3,704 		205 -0.1% 18.07 US$3,704
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.02
US$9,010 		500 -0.3% 18.02 US$9,010
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.01
US$9,005 		500 -0.3% 18.01 US$9,005
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.00
US$9,000 		500 -0.3% 18.00 US$9,000
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
1,000 -0.6%
18.00
US$18,000 		1,000 -0.6% 18.00 US$18,000
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
100 -0.1%
18.02
US$1,802 		100 -0.1% 18.02 US$1,802
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
400 -0.2%
18.00
US$7,200 		400 -0.2% 18.00 US$7,200
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.01
US$9,005 		500 -0.3% 18.01 US$9,005
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.03
US$9,015 		500 -0.3% 18.03 US$9,015
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.02
US$9,010 		500 -0.3% 18.02 US$9,010
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.04
US$9,020 		500 -0.3% 18.04 US$9,020
2012-03-13 2012-03-12 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
500 -0.3%
18.02
US$9,010 		500 -0.3% 18.02 US$9,010
2012-03-13 2012-03-09 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
2,001 -1.2%
18.04
US$36,098 		2,001 -1.2% 18.04 US$36,098
2012-02-14 2012-02-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
200 -0.1%
18.99
US$3,798 		200 -0.1% 18.99 US$3,798
2012-02-14 2012-02-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
29 -0.0%
19.03
US$552 		29 -0.0% 19.03 US$552
2012-02-14 2012-02-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
100 -0.1%
19.09
US$1,909 		100 -0.1% 19.09 US$1,909
2012-02-14 2012-02-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
100 -0.1%
19.02
US$1,902 		100 -0.1% 19.02 US$1,902
2012-02-14 2012-02-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
300 -0.2%
19.09
US$5,727 		300 -0.2% 19.09 US$5,727
2012-02-14 2012-02-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
100 -0.1%
19.10
US$1,910 		100 -0.1% 19.10 US$1,910
2012-02-14 2012-02-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
100 -0.1%
19.02
US$1,902 		100 -0.1% 19.02 US$1,902
2012-02-14 2012-02-13 S Sale CHOY BENEDICT C K

Senior VP, Tech Development

Executive Director
1,016 -0.6%
18.96
US$19,263 		1,016 -0.6% 18.96 US$19,263
2012-02-01 2012-01-27 S Sale Tsang Michael

VP, Operations & Product Eng

Officer
5,000 -100.0%
19.00
US$95,000 		5,000 -100.0% 19.00 US$95,000
2011-09-02 2011-08-31 S Sale SCHLAM ELLIOTT Non-Executive Director
4,500 -100.0%
19.60
US$88,200 		4,500 -100.0% 19.60 US$88,200
2011-09-02 2011-08-31 S Sale SCHLAM ELLIOTT Non-Executive Director
800 -15.1%
19.61
US$15,688 		800 -15.1% 19.61 US$15,688
2011-09-02 2011-08-31 S Sale SCHLAM ELLIOTT Non-Executive Director
2,100 -28.4%
19.64
US$41,244 		2,100 -28.4% 19.64 US$41,244
2011-09-02 2011-08-31 S Sale SCHLAM ELLIOTT Non-Executive Director
300 -3.9%
19.65
US$5,895 		300 -3.9% 19.65 US$5,895
2011-09-02 2011-08-31 S Sale SCHLAM ELLIOTT Non-Executive Director
400 -4.9%
19.66
US$7,864 		400 -4.9% 19.66 US$7,864
2011-09-02 2011-08-31 S Sale SCHLAM ELLIOTT Non-Executive Director
100 -1.2%
19.67
US$1,966 		100 -1.2% 19.67 US$1,966
2011-09-02 2011-08-31 S Sale SCHLAM ELLIOTT Non-Executive Director
200 -2.4%
19.69
US$3,937 		200 -2.4% 19.69 US$3,937
2011-09-02 2011-08-31 S Sale SCHLAM ELLIOTT Non-Executive Director
1,500 -15.2%
19.72
US$29,580 		1,500 -15.2% 19.72 US$29,580
2011-09-02 2011-08-31 S Sale SCHLAM ELLIOTT Non-Executive Director
100 -1.0%
19.73
US$1,973 		100 -1.0% 19.73 US$1,973
2011-08-30 2011-08-26 S Sale INGRAM WILLIAM P

VP, Wafer Fab Operations

Officer
1,000 -100.0%
19.22
US$19,217 		1,000 -100.0% 19.22 US$19,217
2011-08-30 2011-08-26 S Sale FENG MILTON Non-Executive Director
6,000 -100.0%
18.49
US$110,940 		6,000 -100.0% 18.49 US$110,940
2011-08-29 2011-08-25 S Sale PETERSEN WILLIAM

VP, Worldwide Sales

Officer
4,000 -100.0%
19.13
US$76,506 		4,000 -100.0% 19.13 US$76,506
2011-08-24 2011-08-23 S Sale INGRAM WILLIAM P

VP, Wafer Fab Operations

Officer
1,500 -100.0%
19.02
US$28,530 		1,500 -100.0% 19.02 US$28,530
2011-08-24 2011-08-23 S Sale INGRAM WILLIAM P

VP, Wafer Fab Operations

Officer
100 -6.2%
19.06
US$1,906 		100 -6.2% 19.06 US$1,906
2011-08-24 2011-08-23 S Sale INGRAM WILLIAM P

VP, Wafer Fab Operations

Officer
76 -4.5%
19.02
US$1,446 		76 -4.5% 19.02 US$1,446
2011-08-24 2011-08-23 S Sale INGRAM WILLIAM P

VP, Wafer Fab Operations

Officer
24 -1.4%
19.08
US$458 		24 -1.4% 19.08 US$458
2011-08-24 2011-08-23 S Sale INGRAM WILLIAM P

VP, Wafer Fab Operations

Officer
200 -10.5%
19.02
US$3,804 		200 -10.5% 19.02 US$3,804
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