Insider Stock Trading History of Mikolajczyk Michael E


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 Mikolajczyk Michael E since year 2005. The trader's CIK number is 1224360. At the time of this reporting, Mikolajczyk Michael E is the Director of Rubicon Technology, Inc. . (stock ticker symbol RBCN). See this page for all insider trading activities at Rubicon Technology, Inc. .

Note that in the past MIKOLAJCZYK MICHAEL E also reported insider trading activities as an insider of the following companies:
Stock purchases, sales, and option exercises reported by insider Mikolajczyk Michael E since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2015-12-30 RBCN Rubicon Technology, Inc. Buy 41,300 1.20 49,560
2015-12-31 RBCN Rubicon Technology, Inc. Buy 38,700 1.19 46,053
2010-06-21 RBCN Rubicon Technology, Inc. Sale 20,000 28.41 568,200
2010-06-15 RBCN Rubicon Technology, Inc. Option Ex 23,653 8.45 199,867
2010-06-02 DTPI Diamondcluster International Inc Sale 20,000 10.20 204,060
2008-11-13 DTPI Diamondcluster International Inc Buy 15,000 3.94 59,130
2008-09-30 DTPI Diamondcluster International Inc Buy 10,000 4.62 46,160
2008-09-23 DTPI Diamondcluster International Inc Buy 20,000 5.13 102,540
2007-12-06 DTPI Diamondcluster International Inc Buy 575 7.45 4,284
2006-12-08 DTPI Diamondcluster International Inc Buy 306 11.75 3,595
2006-09-15 DTPI Diamondcluster International Inc Sale 16 9.70 155
2007-04-24 DTPI Diamondcluster International Inc Sale 25 12.27 306
2007-12-06 DTPI Diamondcluster International Inc Buy 575 7.45 4,284
2006-12-08 DTPI Diamondcluster International Inc Buy 306 11.75 3,595
2006-09-15 DTPI Diamondcluster International Inc Sale 16 9.70 155
2007-04-24 DTPI Diamondcluster International Inc Sale 25 12.27 306
2008-04-16 RBCN Rubicon Technology, Inc. Option Ex 10,961 4.94 54,147
2007-05-11 DTPI Diamondcluster International Inc Sale 15,000 13.00 195,030
2007-02-20 DTPI Diamondcluster International Inc Sale 22,248 15.02 334,276
2007-02-06 DTPI Diamondcluster International Inc Sale 15,000 14.07 211,005
2006-12-12 DTPI Diamondcluster International Inc Sale 7,500 12.01 90,075
2006-11-16 DTPI Diamondcluster International Inc Sale 7,500 12.00 90,000
2006-11-15 DTPI Diamondcluster International Inc Option Ex 15,417 10.16 156,575
2006-11-15 DTPI Diamondcluster International Inc Sale 5,000 12.00 60,000
2006-11-07 DTPI Diamondcluster International Inc Sale 5,000 10.97 54,840
2006-09-21 DTPI Diamondcluster International Inc Sale 5,000 10.00 50,000
2005-06-16 DTPI Diamondcluster International Inc Sale 10,000 15.00 150,050

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 Mikolajczyk Michael E (Director of Rubicon Technology, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.