Insider Trading activities of Supertex Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Supertex Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Supertex Inc since year 2005. Table 2 shows the detailed insider transactions of Supertex Inc since 2005. The reporting company's ticker symbol is SUPX. The reporting company's CIK number is 730000.
The total value of stock buying since 2005 is $157,471.
The total value of stock sales since 2005 is $12,941,929.
The total value of stock option exercises since 2005 is $5,375,155.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Supertex Inc (SUPX).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2013-07 0 $0 14,000 $374,500 14,000 $291,900
2012-08 800 $13,487 0 $0 0 $0
2012-06 0 $0 9,000 $165,275 0 $0
2012-03 0 $0 13,900 $250,285 0 $0
2012-02 0 $0 1,945 $37,028 0 $0
2012-01 0 $0 5,000 $95,000 5,000 $86,950
2011-08 600 $10,946 33,620 $641,289 34,000 $580,039
2011-07 400 $7,770 3,900 $76,128 14,000 $238,840
2010-11 0 $0 0 $0 8,000 $138,720
2010-08 1,000 $23,160 1,750 $46,375 1,750 $29,854
2010-07 0 $0 5,000 $128,500 5,000 $83,080
2010-06 0 $0 15,000 $386,475 26,000 $521,795
2009-05 0 $0 1,500 $36,525 1,500 $16,950
2008-05 0 $0 8,000 $204,888 78,000 $915,040
2008-03 1,000 $19,765 0 $0 1,600 $20,048
2008-02 4,000 $82,343 0 $0 0 $0
2008-01 0 $0 0 $0 9,000 $96,750
2007-12 0 $0 5,000 $159,554 3,000 $52,020
2007-11 0 $0 14,100 $493,093 2,000 $39,124
2007-09 0 $0 4,500 $168,350 4,500 $88,029
2007-08 0 $0 5,000 $174,715 0 $0
2007-06 0 $0 3,000 $100,340 4,000 $67,790
2007-05 0 $0 0 $0 29,000 $337,560
2007-02 0 $0 12,000 $488,904 0 $0
2006-12 0 $0 9,000 $414,903 36,000 $597,262
2006-11 0 $0 12,500 $567,000 19,786 $558,656
2006-10 0 $0 2,772 $122,938 2,500 $38,577
2006-06 0 $0 16,000 $648,577 16,000 $237,099
2006-05 0 $0 2,000 $79,000 2,000 $36,902
2006-03 0 $0 0 $0 5,000 $67,500
2006-02 0 $0 0 $0 7,000 $102,180
2006-01 0 $0 0 $0 7,000 $132,490
2005-12 0 $0 33,996 $1,511,964 0 $0
2005-11 0 $0 99,490 $4,066,663 0 $0
2005-10 0 $0 37,000 $1,368,010 0 $0
2005-08 0 $0 5,000 $135,650 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Supertex Inc insiders (SUPX)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2013-07-30 Tsang Michael (VP, Operations & Product Eng.) Sale 7,000 27.00 189,000
2013-07-30 Tsang Michael (VP, Operations & Product Eng.) Option Ex 7,000 20.85 145,950
2013-07-29 Tsang Michael (VP, Operations & Product Eng.) Sale 7,000 26.50 185,500
2013-07-29 Tsang Michael (VP, Operations & Product Eng.) Option Ex 7,000 20.85 145,950
2012-08-31 Kagel Phil (VP, Finance & CFO) Buy 400 17.14 6,856
2012-08-02 Kagel Phil (VP, Finance & CFO) Buy 400 16.58 6,631
2012-06-14 Choy Benedict C K (Sr. VP, Tech Development) Sale 3,895 18.01 70,152
2012-06-13 Choy Benedict C K (Sr. VP, Tech Development) Sale 5 18.04 90
2012-06-12 Choy Benedict C K (Sr. VP, Technology Development) Sale 2,000 18.38 36,756
2012-06-11 Choy Benedict C K (Sr. VP, Tech Development) Sale 100 18.57 1,857
2012-06-08 Choy Benedict C K (Sr. VP, Tech Development) Sale 1,000 18.80 18,800
2012-06-07 Choy Benedict C K (Senior VP, Tech Development) Sale 1,000 18.92 18,920
2012-06-05 Choy Benedict C K (Senior VP, Tech Development) Sale 1,000 18.70 18,700
2012-03-14 Choy Benedict C K (Senior VP, Tech Development) Sale 2,694 17.92 48,273
2012-03-13 Choy Benedict C K (Senior VP, Tech Development) Sale 3,705 18.04 66,827
2012-03-12 Choy Benedict C K (Senior VP, Tech Development) Sale 5,500 18.02 99,087
2012-03-09 Choy Benedict C K (Senior VP, Tech Development) Sale 2,001 18.04 36,098
2012-02-13 Choy Benedict C K (Senior VP, Tech Development) Sale 1,945 19.04 37,028
2012-01-27 Tsang Michael (VP, Operations & Product Eng) Sale 5,000 19.00 95,000
2012-01-27 Tsang Michael (VP, Operations & Product Eng) Option Ex 5,000 17.39 86,950
2011-08-31 Schlam Elliott (Director) Sale 10,000 19.66 196,620
2011-08-31 Schlam Elliott (Director) Option Ex 10,000 17.06 170,600
2011-08-26 Feng Milton (Director) Sale 6,000 18.49 110,939
2011-08-26 Feng Milton (Director) Option Ex 6,000 17.06 102,359
2011-08-26 Ingram William P (VP, Wafer Fab Operations) Sale 1,000 19.22 19,217
2011-08-26 Ingram William P (VP, Wafer Fab Operations) Option Ex 1,000 17.06 17,060
2011-08-25 Petersen William (VP, Worldwide Sales) Sale 4,000 19.13 76,504
2011-08-25 Petersen William (VP, Worldwide Sales) Option Ex 4,000 17.06 68,240
2011-08-23 Loveless W Mark (Director) Sale 9,620 18.83 181,106
2011-08-23 Loveless W Mark (Director) Option Ex 10,000 17.06 170,600
2011-08-23 Ingram William P (VP, Wafer Fab Operations) Sale 2,000 19.04 38,090
2011-08-23 Ingram William P (VP, Wafer Fab Operations) Option Ex 2,000 17.06 34,120
2011-08-18 Kagel Phil (VP, Finance & CFO) Buy 300 18.22 5,466
2011-08-16 Ingram William P (Vice President Fab Operations) Sale 1,000 18.81 18,813
2011-08-16 Ingram William P (Vice President Fab Operations) Option Ex 1,000 17.06 17,060
2011-08-09 Kagel Phil (VP, Finance & CFO) Buy 300 18.27 5,480
2011-07-29 Kagel Phil (VP, Finance & CFO) Buy 300 19.40 5,820
2011-07-29 Pao Henry (President and CEO) Option Ex 10,000 17.06 170,600
2011-07-28 Ingram William P (VP, Wafer Fab Operations) Buy 100 19.50 1,950
2011-07-28 Ingram William P (VP, Wafer Fab Operations) Sale 3,900 19.52 76,128
2011-07-28 Ingram William P (VP, Wafer Fab Operations) Option Ex 4,000 17.06 68,240
2010-11-30 Lee Michael James (VP, IC Design) Option Ex 8,000 17.34 138,720
2010-08-12 Kagel Phil (VP, Finance & CFO) Buy 1,000 23.16 23,160
2010-08-02 Deguzman Hernan (VP, Marketing) Sale 1,750 26.50 46,375
2010-08-02 Deguzman Hernan (VP, Marketing) Option Ex 1,750 17.06 29,854
2010-07-30 Deguzman Hernan (VP, Marketing) Sale 1,000 26.00 26,000
2010-07-30 Deguzman Hernan (VP, Marketing) Option Ex 1,000 17.06 17,060
2010-07-29 Tsang Michael (VP, Standard Products) Sale 4,000 25.62 102,500
2010-07-29 Tsang Michael (VP, Standard Products) Option Ex 4,000 16.50 66,020
2010-06-14 Masood Ahmed (VP, Marketing) Sale 15,000 25.76 386,475
2010-06-14 Masood Ahmed (VP, Marketing) Option Ex 15,000 20.44 306,525
2010-06-11 Masood Ahmed (VP, Marketing) Option Ex 11,000 19.57 215,270
2009-05-26 Tsang Michael (VP, Standard Products) Sale 1,500 24.35 36,525
2009-05-26 Tsang Michael (VP, Standard Products) Option Ex 1,500 11.30 16,950
2008-05-30 Pao Henry (President and CEO) Option Ex 70,000 11.64 814,800
2008-05-28 Schlam Elliott (Director) Sale 8,000 25.61 204,888
2008-05-28 Schlam Elliott (Director) Option Ex 8,000 12.53 100,240
2008-03-11 Loveless W Mark (Director) Option Ex 1,600 12.53 20,048
2008-03-04 Kagel Phil (VP, Finance & CFO) Buy 1,000 19.76 19,765
2008-02-29 Kagel Phil (VP, Finance & CFO) Buy 1,000 20.87 20,867
2008-02-01 Lee Michael James (VP, IC Design) Buy 3,000 20.49 61,476
2008-01-25 Choy Benedict C K (Senior Vice President) Option Ex 9,000 10.75 96,750
2007-12-11 Gonzalez Franklin (VP, Process Technology) Sale 4,000 31.45 125,804
2007-12-11 Gonzalez Franklin (VP, Process Technology) Option Ex 2,000 17.34 34,680
2007-12-04 Kapur Dilip (VP, Standard Products) Sale 1,000 33.75 33,750
2007-12-04 Kapur Dilip (VP, Standard Products) Option Ex 1,000 17.34 17,340
2007-11-30 Schlam Elliott (Director) Sale 2,000 34.23 68,460
2007-11-30 Schlam Elliott (Director) Option Ex 2,000 19.56 39,124
2007-11-28 Choy Benedict C K (Senior Vice President) Sale 8,569 35.12 300,943
2007-11-14 Choy Benedict C K (Senior Vice President) Sale 3,531 35.03 123,690
2007-09-12 Loveless W Mark (Director) Sale 2,000 37.64 75,276
2007-09-12 Loveless W Mark (Director) Option Ex 2,000 19.56 39,124
2007-09-12 Ingram William P (VP, FAB OPERATIONS) Sale 2,500 37.23 93,074
2007-09-12 Ingram William P (VP, FAB OPERATIONS) Option Ex 2,500 19.56 48,905
2007-08-22 Choy Benedict C K (Senior Vice President) Sale 5,000 34.94 174,715
2007-06-12 Kapur Dilip (VP, Standard Products) Sale 1,000 32.50 32,500
2007-06-12 Kapur Dilip (VP, Standard Products) Option Ex 1,000 17.39 17,390
2007-06-05 Masood Ahmed (VP Marketing) Option Ex 1,000 17.39 17,390
2007-06-04 Tsang Michael (VP, Standard Products) Sale 2,000 33.92 67,840
2007-06-04 Tsang Michael (VP, Standard Products) Option Ex 2,000 16.50 33,010
2007-05-11 Choy Benedict C K (Senior Vice President) Option Ex 29,000 11.64 337,560
2007-02-26 Gonzalez Franklin (VP Process Technology) Sale 2,000 41.55 83,104
2007-02-22 Choy Benedict C K (Senior Vice President) Sale 10,000 40.58 405,800
2006-12-07 Tsang Michael (VP, Standard Products) Sale 1,000 43.76 43,765
2006-12-07 Tsang Michael (VP, Standard Products) Option Ex 1,000 15.67 15,670
2006-12-04 Kapur Dilip (VP Standard Products) Sale 1,000 45.75 45,750
2006-12-04 Kapur Dilip (VP Standard Products) Option Ex 1,000 17.34 17,340
2006-12-01 Masood Ahmed (VP Marketing) Sale 7,000 46.48 325,388
2006-12-01 Masood Ahmed (VP Marketing) Option Ex 7,000 20.30 142,072
2006-12-01 Pao Henry (President and CEO) Option Ex 25,000 15.50 387,500
2006-12-01 Gonzalez Franklin (VP Process Technology) Option Ex 2,000 17.34 34,680
2006-11-22 Choy Benedict C K (Senior Vice President, Technol) Option Ex 7,286 47.00 342,442
2006-11-20 Tsang Michael (VP, Standard Products) Sale 1,000 47.99 47,990
2006-11-20 Tsang Michael (VP, Standard Products) Option Ex 1,000 15.67 15,670
2006-11-20 Feng Milton (Director) Sale 4,000 45.75 183,000
2006-11-20 Feng Milton (Director) Option Ex 4,000 16.44 65,780
2006-11-20 Ingram William P (V.P. Fab. Operations) Sale 2,500 47.00 117,500
2006-11-20 Ingram William P (V.P. Fab. Operations) Option Ex 2,500 19.56 48,905
2006-11-15 Tsang Michael (VP, Standard Products) Sale 2,000 45.50 91,010
2006-11-15 Tsang Michael (VP, Standard Products) Option Ex 2,000 17.34 34,680
2006-11-14 Petersen William (VP Worldwide Sales) Sale 1,502 42.50 63,835
2006-11-07 Petersen William (VP Worldwide Sales) Sale 1,498 42.50 63,665
2006-11-07 Petersen William (VP Worldwide Sales) Option Ex 3,000 17.06 51,179
2006-10-31 Tsang Michael (VP, Standard Products) Sale 2,772 44.35 122,938
2006-10-31 Tsang Michael (VP, Standard Products) Option Ex 2,500 15.43 38,577
2006-06-06 Kapur Dilip (V.P. Standard Products) Sale 1,000 39.00 39,000
2006-06-06 Kapur Dilip (V.P. Standard Products) Option Ex 1,000 17.39 17,390
2006-06-01 Petersen William (VP Worldwide Sales) Sale 13,000 40.63 528,177
2006-06-01 Petersen William (VP Worldwide Sales) Option Ex 13,000 14.80 192,335
2006-06-01 Kapur Dilip (VP Standard Products) Sale 2,000 40.70 81,400
2006-06-01 Kapur Dilip (VP Standard Products) Option Ex 2,000 13.69 27,374
2006-05-25 Kapur Dilip (V.P. Standard Products) Sale 2,000 39.50 79,000
2006-05-25 Kapur Dilip (V.P. Standard Products) Option Ex 2,000 18.45 36,902
2006-03-09 Lee Michael James (VP I.C. Design) Option Ex 5,000 13.50 67,500
2006-02-24 Lee Michael James (VP I.C. Design) Option Ex 5,000 13.50 67,500
2006-02-22 Gonzalez Franklin (VP Process Technology) Option Ex 2,000 17.34 34,680
2006-01-27 Lee Michael James (VP I.C. Design) Option Ex 5,000 19.56 97,810
2006-01-24 Lee Michael James (VP I.C. Design) Option Ex 2,000 17.34 34,680
2005-12-07 Choy Benedict C K (Senior Vice Presiden) Sale 25,000 44.94 1,123,625
2005-12-05 Gonzalez Franklin (VP Process Technolog) Sale 8,996 43.17 388,339
2005-11-22 Pao Henry (President and CEO) Sale 15,729 44.23 695,693
2005-11-18 Pao Henry (President and CEO) Sale 12,300 44.28 544,644
2005-11-17 Siegel Richard E (Executive Vice Presi) Sale 10,549 43.50 458,881
2005-11-17 Gonzalez Franklin (VP Process Technolog) Sale 1,912 42.74 81,718
2005-11-09 Gonzalez Franklin (VP Process Technolog) Sale 10,000 40.00 400,000
2005-11-08 Gonzalez Franklin (VP Process Technolog) Sale 31,000 38.87 1,200,781
2005-11-02 Choy Benedict C K (Senior Vice Presiden) Sale 10,000 37.18 371,850
2005-10-26 Choy Benedict C K (Senior Vice Presiden) Sale 10,000 37.16 371,629
2005-10-25 Siegel Richard E (Executive Vice Presi) Sale 27,000 36.90 996,381
2005-08-23 Choy Benedict C K (Senior Vice Presiden) Sale 1,000 27.75 27,750
2005-08-17 Choy Benedict C K (Senior Vice Presiden) Sale 2,000 26.60 53,200
2005-08-01 Choy Benedict C K (Senior Vice Presiden) Sale 2,000 27.35 54,700

Insider trading activities including stock purchases, stock sales, and option exercises of SUPX listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Supertex Inc (symbol SUPX, CIK number 730000) see the Securities and Exchange Commission (SEC) website.