Insider Stock Trading History of Walker Clifford


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 Walker Clifford since year 2005. The trader's CIK number is 1182413. At the time of this reporting, Walker Clifford is the VP Corporate Development of Power Integrations Inc . (stock ticker symbol POWI). See this page for all insider trading activities at Power Integrations Inc .


Stock purchases, sales, and option exercises reported by insider Walker Clifford since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2017-11-03 POWI Power Integrations Inc Sale 157 81.11 12,734
2017-02-21 POWI Power Integrations Inc Sale 7,474 66.00 493,284
2017-02-22 POWI Power Integrations Inc Sale 10,240 66.00 675,840
2017-02-21 POWI Power Integrations Inc Option Ex 7,474 39.91 298,324
2017-02-22 POWI Power Integrations Inc Option Ex 10,240 39.91 408,729
2017-02-13 POWI Power Integrations Inc Sale 800 67.03 53,622
2017-02-13 POWI Power Integrations Inc Option Ex 800 42.88 34,304
2017-02-10 POWI Power Integrations Inc Sale 2,430 67.04 162,902
2017-02-10 POWI Power Integrations Inc Option Ex 2,430 42.88 104,198
2017-02-09 POWI Power Integrations Inc Sale 15,056 67.55 1,017,077
2017-02-09 POWI Power Integrations Inc Option Ex 15,056 39.30 591,700
2017-02-02 POWI Power Integrations Inc Sale 2,275 65.86 149,822
2017-02-01 POWI Power Integrations Inc Sale 560 71.15 39,845
2017-01-30 POWI Power Integrations Inc Sale 792 69.89 55,348
2017-01-27 POWI Power Integrations Inc Sale 848 71.62 60,737
2017-01-24 POWI Power Integrations Inc Sale 1,207 69.04 83,330
2016-11-04 POWI Power Integrations Inc Sale 157 63.38 9,951
2016-11-03 POWI Power Integrations Inc Sale 23,612 62.38 1,473,034
2016-11-02 POWI Power Integrations Inc Sale 1,434 63.00 90,342
2016-11-03 POWI Power Integrations Inc Option Ex 23,612 23.20 547,680
2016-11-02 POWI Power Integrations Inc Option Ex 1,434 25.25 36,208
2016-11-01 POWI Power Integrations Inc Sale 12,454 63.34 788,786
2016-11-01 POWI Power Integrations Inc Option Ex 12,454 25.25 314,463
2016-05-10 POWI Power Integrations Inc Sale 567 46.43 26,325
2016-02-05 POWI Power Integrations Inc Sale 245 43.99 10,778
2016-02-01 POWI Power Integrations Inc Sale 555 46.26 25,674
2016-01-28 POWI Power Integrations Inc Sale 741 44.35 32,861
2015-11-04 POWI Power Integrations Inc Sale 113 51.16 5,781
2015-05-11 POWI Power Integrations Inc Sale 565 50.05 28,279
2015-05-06 POWI Power Integrations Inc Sale 559 49.24 27,525
2015-01-30 POWI Power Integrations Inc Sale 569 53.42 30,393
2015-01-23 POWI Power Integrations Inc Sale 1,241 52.87 65,611
2014-02-06 POWI Power Integrations Inc Sale 40,000 57.05 2,282,160
2014-02-06 POWI Power Integrations Inc Option Ex 40,000 26.75 1,070,000
2014-02-04 POWI Power Integrations Inc Sale 1,910 60.26 115,098
2014-01-23 POWI Power Integrations Inc Sale 1,237 60.73 75,118
2013-08-09 POWI Power Integrations Inc Option Ex 7,954 27.22 216,507
2013-08-09 POWI Power Integrations Inc Sale 7,954 52.50 417,585
2013-08-07 POWI Power Integrations Inc Sale 100 53.30 5,330
2013-08-07 POWI Power Integrations Inc Option Ex 100 27.22 2,722
2013-08-06 POWI Power Integrations Inc Option Ex 36,946 27.22 1,005,670
2013-08-06 POWI Power Integrations Inc Sale 36,946 53.51 1,976,906
2013-05-09 POWI Power Integrations Inc Sale 798 42.35 33,798
2013-05-06 POWI Power Integrations Inc Sale 796 42.44 33,782
2013-05-07 POWI Power Integrations Inc Sale 793 42.31 33,555
2013-02-12 POWI Power Integrations Inc Option Ex 13,710 21.14 289,829
2013-02-12 POWI Power Integrations Inc Sale 13,710 43.24 592,779
2013-02-11 POWI Power Integrations Inc Sale 12,000 43.04 516,504
2013-02-11 POWI Power Integrations Inc Option Ex 12,000 21.14 253,680
2013-02-08 POWI Power Integrations Inc Sale 1,402 44.08 61,793
2013-02-07 POWI Power Integrations Inc Sale 11,790 44.32 522,497
2013-02-07 POWI Power Integrations Inc Option Ex 11,790 21.14 249,240
2012-05-08 POWI Power Integrations Inc Sale 50,565 42.21 2,134,247
2012-05-08 POWI Power Integrations Inc Option Ex 50,000 17.18 859,000
2012-05-04 POWI Power Integrations Inc Sale 485 42.74 20,728
2012-02-28 POWI Power Integrations Inc Sale 23,438 38.55 903,534
2012-02-28 POWI Power Integrations Inc Option Ex 23,438 18.95 444,150
2011-11-08 POWI Power Integrations Inc Option Ex 10,000 14.82 148,200
2011-11-08 POWI Power Integrations Inc Sale 10,000 36.15 361,500
2011-08-31 POWI Power Integrations Inc Option Ex 10,000 14.82 148,200
2011-08-31 POWI Power Integrations Inc Sale 10,000 32.22 322,209
2011-05-04 POWI Power Integrations Inc Sale 551 37.45 20,637
2011-02-10 POWI Power Integrations Inc Sale 3,281 41.20 135,177
2010-11-22 POWI Power Integrations Inc Sale 13,683 39.05 534,321
2010-11-22 POWI Power Integrations Inc Option Ex 13,683 12.10 165,564
2010-11-19 POWI Power Integrations Inc Sale 920 39.25 36,110
2010-11-18 POWI Power Integrations Inc Sale 16,751 39.30 658,314
2010-11-18 POWI Power Integrations Inc Option Ex 16,751 12.10 202,687
2010-11-19 POWI Power Integrations Inc Option Ex 920 12.10 11,132
2010-11-01 POWI Power Integrations Inc Sale 1,374 34.50 47,403
2010-08-13 POWI Power Integrations Inc Sale 3,200 31.37 100,377
2009-08-21 POWI Power Integrations Inc Sale 15,000 32.74 491,055
2009-08-21 POWI Power Integrations Inc Option Ex 15,000 15.06 225,945
2009-08-06 POWI Power Integrations Inc Option Ex 15,000 15.06 225,945
2009-08-06 POWI Power Integrations Inc Sale 15,000 29.77 446,625
2009-08-04 POWI Power Integrations Inc Sale 10,000 30.01 300,100
2009-08-04 POWI Power Integrations Inc Option Ex 10,000 14.82 148,200
2008-12-08 POWI Power Integrations Inc Option Ex 6,891 14.82 102,124
2008-12-08 POWI Power Integrations Inc Sale 6,891 16.75 115,431
2008-02-21 POWI Power Integrations Inc Option Ex 100 14.82 1,482
2008-02-21 POWI Power Integrations Inc Sale 100 27.51 2,751
2007-12-07 POWI Power Integrations Inc Sale 1,968 30.04 59,110
2007-12-07 POWI Power Integrations Inc Option Ex 1,968 14.82 29,165
2007-12-07 POWI Power Integrations Inc Sale 3,546 29.90 106,018
2007-12-07 POWI Power Integrations Inc Option Ex 3,546 12.10 42,906
2007-08-28 POWI Power Integrations Inc Option Ex 100 12.10 1,210
2007-08-28 POWI Power Integrations Inc Sale 100 26.86 2,686

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 Walker Clifford (VP Corporate Development of Power Integrations Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.