Insider Stock Trading History of Smith John Alexander


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 Smith John Alexander since year 2005. The trader's CIK number is 1202768. At the time of this reporting, Smith John Alexander is the V.P. & Chief Tech Of of Mks Instruments Inc . (stock ticker symbol MKSI). See this page for all insider trading activities at Mks Instruments Inc .


Stock purchases, sales, and option exercises reported by insider Smith John Alexander since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2013-07-03 MKSI Mks Instruments Inc Option Ex 8,802 .00 0
2013-03-05 MKSI Mks Instruments Inc Sale 2,639 27.33 72,131
2013-03-04 MKSI Mks Instruments Inc Option Ex 3,917 .00 0
2013-02-28 MKSI Mks Instruments Inc Option Ex 2,418 .00 0
2013-03-01 MKSI Mks Instruments Inc Sale 1,629 26.75 43,575
2013-02-26 MKSI Mks Instruments Inc Sale 1,600 27.13 43,408
2013-02-25 MKSI Mks Instruments Inc Option Ex 2,354 .00 0
2012-05-01 MKSI Mks Instruments Inc Sale 1,913 27.68 52,951
2012-03-16 MKSI Mks Instruments Inc Option Ex 2,801 .00 0
2012-03-06 MKSI Mks Instruments Inc Sale 2,674 28.61 76,513
2012-03-05 MKSI Mks Instruments Inc Option Ex 3,917 .00 0
2012-02-29 MKSI Mks Instruments Inc Sale 1,651 30.35 50,107
2012-02-28 MKSI Mks Instruments Inc Option Ex 2,418 .00 0
2011-04-26 MKSI Mks Instruments Inc Sale 1,910 28.09 53,644
2011-03-16 MKSI Mks Instruments Inc Option Ex 2,800 .00 0
2011-03-10 MKSI Mks Instruments Inc Option Ex 2,824 .00 0
2011-03-11 MKSI Mks Instruments Inc Sale 1,926 29.24 56,316
2011-03-07 MKSI Mks Instruments Inc Sale 2,672 31.68 84,654
2011-03-04 MKSI Mks Instruments Inc Option Ex 9,916 9.98 98,931
2011-03-04 MKSI Mks Instruments Inc Sale 6,000 31.90 191,400
2011-02-17 MKSI Mks Instruments Inc Sale 24,000 30.45 730,800
2011-02-17 MKSI Mks Instruments Inc Option Ex 24,000 27.11 650,640
2011-02-07 MKSI Mks Instruments Inc Option Ex 55,000 24.75 1,361,250
2011-02-07 MKSI Mks Instruments Inc Sale 55,000 30.03 1,651,650
2010-04-26 MKSI Mks Instruments Inc Option Ex 2,649 16.58 43,920
2010-04-26 MKSI Mks Instruments Inc Sale 2,649 24.33 64,450
2010-03-16 MKSI Mks Instruments Inc Option Ex 2,799 .00 0
2010-03-17 MKSI Mks Instruments Inc Sale 1,909 19.17 36,595
2010-03-10 MKSI Mks Instruments Inc Option Ex 2,824 .00 0
2010-03-11 MKSI Mks Instruments Inc Sale 1,926 19.04 36,671
2010-03-01 MKSI Mks Instruments Inc Option Ex 3,156 .00 0
2010-03-02 MKSI Mks Instruments Inc Sale 1,960 18.50 36,260
2009-03-12 MKSI Mks Instruments Inc Sale 4,078 13.23 53,951
2009-03-10 MKSI Mks Instruments Inc Option Ex 2,822 .00 0
2009-03-02 MKSI Mks Instruments Inc Option Ex 3,156 .00 0
2009-03-02 MKSI Mks Instruments Inc Sale 1,003 11.89 11,925
2009-02-17 MKSI Mks Instruments Inc Sale 6,548 15.61 102,214
2008-05-21 MKSI Mks Instruments Inc Option Ex 2,187 14.72 32,192
2008-05-22 MKSI Mks Instruments Inc Sale 2,187 24.06 52,619
2008-03-17 MKSI Mks Instruments Inc Sale 2,457 20.00 49,140
2008-03-01 MKSI Mks Instruments Inc Option Ex 3,154 .00 0
2008-02-27 MKSI Mks Instruments Inc Option Ex 6,563 14.72 96,607
2008-02-27 MKSI Mks Instruments Inc Sale 6,563 21.00 137,823
2007-04-30 MKSI Mks Instruments Inc Option Ex 2,187 14.72 32,192
2007-04-30 MKSI Mks Instruments Inc Sale 2,187 27.51 60,164
2007-03-12 MKSI Mks Instruments Inc Option Ex 14,116 16.61 234,494
2007-03-12 MKSI Mks Instruments Inc Sale 14,116 24.90 351,488
2006-02-21 MKSI Mks Instruments Inc Sale 13,125 23.00 301,875
2006-02-21 MKSI Mks Instruments Inc Option Ex 13,125 14.72 193,200
2006-01-27 MKSI Mks Instruments Inc Option Ex 10,000 14.00 140,000
2006-01-27 MKSI Mks Instruments Inc Sale 10,000 22.00 220,000
2006-01-26 MKSI Mks Instruments Inc Option Ex 13,000 14.00 182,000
2006-01-26 MKSI Mks Instruments Inc Sale 13,000 21.50 279,500

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 Smith John Alexander (V.P. & Chief Tech Of of Mks Instruments Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.