Insider Stock Trading History of Tsang Michael


The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Tsang Michael since year 2005. The trader's CIK number is 1351520. At the time of this reporting, Tsang Michael is the VP, Standard Product of Supertex Inc . (stock ticker symbol SUPX). See this page for all insider trading activities at Supertex Inc .


Stock purchases, sales, and option exercises reported by insider Tsang Michael since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2014-02-10 SUPX Supertex Inc Option Ex 10,500 20.85 218,925
2014-02-10 SUPX Supertex Inc Sale 10,500 33.00 346,500
2014-01-30 SUPX Supertex Inc Option Ex 3,500 20.85 72,975
2014-01-30 SUPX Supertex Inc Sale 3,500 27.00 94,500
2013-07-30 SUPX Supertex Inc Option Ex 7,000 20.85 145,950
2013-07-29 SUPX Supertex Inc Option Ex 7,000 20.85 145,950
2013-07-30 SUPX Supertex Inc Sale 7,000 27.00 189,000
2013-07-29 SUPX Supertex Inc Sale 7,000 26.50 185,500
2012-01-27 SUPX Supertex Inc Option Ex 5,000 17.39 86,950
2012-01-27 SUPX Supertex Inc Sale 5,000 19.00 95,000
2010-07-29 SUPX Supertex Inc Option Ex 4,000 16.50 66,020
2010-07-29 SUPX Supertex Inc Sale 4,000 25.62 102,500
2009-05-26 SUPX Supertex Inc Option Ex 1,500 11.30 16,950
2009-05-26 SUPX Supertex Inc Sale 1,500 24.35 36,525
2007-06-04 SUPX Supertex Inc Option Ex 2,000 16.50 33,010
2007-06-04 SUPX Supertex Inc Sale 2,000 33.92 67,840
2006-12-07 SUPX Supertex Inc Option Ex 1,000 15.67 15,670
2006-12-07 SUPX Supertex Inc Sale 1,000 43.76 43,765
2006-11-20 SUPX Supertex Inc Sale 1,000 47.99 47,990
2006-11-20 SUPX Supertex Inc Option Ex 1,000 15.67 15,670
2006-11-15 SUPX Supertex Inc Option Ex 2,000 17.34 34,680
2006-11-15 SUPX Supertex Inc Sale 2,000 45.50 91,010
2006-10-31 SUPX Supertex Inc Option Ex 2,500 15.43 38,577
2006-10-31 SUPX Supertex Inc Sale 2,772 44.35 122,938

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Tsang Michael (VP, Standard Product of Supertex Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.