Insider Stock Trading History of Helwig David R


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 Helwig David R since year 2005. The trader's CIK number is 1289476. At the time of this reporting, Helwig David R is the Director of Quanta Services Inc . (stock ticker symbol PWR). See this page for all insider trading activities at Quanta Services Inc .

Note that in the past Helwig David R also reported insider trading activities as an insider of the following companies:
Stock purchases, sales, and option exercises reported by insider Helwig David R since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2008-05-15 PWR Quanta Services Inc Sale 143,059 29.76 4,257,006
2008-05-15 PWR Quanta Services Inc Option Ex 143,059 3.77 539,332
2008-05-15 PWR Quanta Services Inc Sale 84,008 29.55 2,482,436
2008-05-15 PWR Quanta Services Inc Option Ex 84,008 10.14 852,261
2008-05-07 PWR Quanta Services Inc Option Ex 51,691 13.72 709,200
2008-05-07 PWR Quanta Services Inc Sale 51,691 28.50 1,473,193
2008-05-01 PWR Quanta Services Inc Sale 18,900 26.39 498,733
2008-05-01 PWR Quanta Services Inc Option Ex 18,900 10.63 200,907
2008-04-02 PWR Quanta Services Inc Option Ex 27,700 10.63 294,451
2008-04-02 PWR Quanta Services Inc Sale 27,700 24.75 685,575
2008-04-01 PWR Quanta Services Inc Option Ex 10,100 10.63 107,363
2008-04-01 PWR Quanta Services Inc Sale 10,100 24.75 249,975
2008-01-02 PWR Quanta Services Inc Option Ex 18,900 16.81 317,709
2008-01-02 PWR Quanta Services Inc Sale 18,900 26.20 495,180
2007-12-03 PWR Quanta Services Inc Sale 18,900 27.57 521,129
2007-12-03 PWR Quanta Services Inc Option Ex 18,900 16.81 317,709
2007-11-29 PWR Quanta Services Inc Option Ex 2,975 16.81 50,009
2007-11-29 PWR Quanta Services Inc Sale 2,975 27.23 81,018
2007-11-01 PWR Quanta Services Inc Sale 15,924 32.22 513,007
2007-10-01 PWR Quanta Services Inc Sale 2,088 26.58 55,501
2007-10-01 PWR Quanta Services Inc Sale 12,088 26.71 322,882
2007-09-13 PWR Quanta Services Inc Sale 14,177 26.60 377,108
2006-09-01 IFS Infrasource Services Inc Sale 2,948 16.47 48,565
2006-08-15 IFS Infrasource Services Inc Sale 54,806 16.47 902,874
2006-04-12 IFS Infrasource Services Inc Sale 10,231 16.62 170,090
2006-03-24 IFS Infrasource Services Inc Sale 68,045 16.62 1,131,248

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 Helwig David R (Director of Quanta Services Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.