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Stock Trading History of Porter William

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 Porter William since year 2005. The trader's CIK number is 1181479. At the time of this reporting, Porter William is the EVP, Chief Financial Officer of Cadence Design Systems Inc (stock ticker symbol CDN).

Stock purchases, sales, and option exercises reported by Porter William since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2007-11-16 CDNS Cadence Design Systems Inc Option Exercise 5,000 10.10 50,525
2007-11-16 CDNS Cadence Design Systems Inc Sale 5,000 17.12 85,600
2007-10-15 CDNS Cadence Design Systems Inc Option Exercise 5,000 10.10 50,525
2007-10-15 CDNS Cadence Design Systems Inc Sale 5,000 21.61 108,050
2007-09-17 CDNS Cadence Design Systems Inc Option Exercise 5,000 10.10 50,525
2007-09-17 CDNS Cadence Design Systems Inc Sale 5,000 21.77 108,859
2007-08-15 CDNS Cadence Design Systems Inc Option Exercise 5,000 10.10 50,525
2007-08-15 CDNS Cadence Design Systems Inc Sale 5,000 20.72 103,610
2007-07-16 CDNS Cadence Design Systems Inc Option Exercise 5,000 10.10 50,525
2007-07-16 CDNS Cadence Design Systems Inc Sale 5,000 22.06 110,275
2007-06-15 CDNS Cadence Design Systems Inc Option Exercise 5,000 10.10 50,525
2007-06-15 CDNS Cadence Design Systems Inc Sale 5,000 23.29 116,450
2007-05-15 CDNS Cadence Design Systems Inc Option Exercise 10,000 14.94 149,375
2007-05-15 CDNS Cadence Design Systems Inc Sale 10,000 21.82 218,201
2007-04-16 CDNS Cadence Design Systems Inc Option Exercise 10,000 14.94 149,375
2007-04-16 CDNS Cadence Design Systems Inc Sale 10,000 22.34 223,400
2007-03-15 CDNS Cadence Design Systems Inc Option Exercise 10,000 14.94 149,375
2007-03-15 CDNS Cadence Design Systems Inc Sale 10,000 20.22 202,240
2007-02-15 CDNS Cadence Design Systems Inc Option Exercise 10,000 14.94 149,375
2007-02-15 CDNS Cadence Design Systems Inc Sale 10,000 20.47 204,724
2006-11-15 CDNS Cadence Design Systems Inc Option Exercise 10,000 10.10 101,050
2006-11-15 CDNS Cadence Design Systems Inc Sale 10,000 18.82 188,183
2006-10-16 CDNS Cadence Design Systems Inc Option Exercise 50,000 10.10 505,250
2006-10-16 CDNS Cadence Design Systems Inc Sale 50,000 17.73 886,676
2006-05-15 CDNS Cadence Design Systems Inc Sale 10,000 19.06 190,565
2006-05-15 CDNS Cadence Design Systems Inc Option Exercise 10,000 10.10 101,050
2006-04-17 CDNS Cadence Design Systems Inc Option Exercise 10,000 10.10 101,050
2006-04-17 CDNS Cadence Design Systems Inc Sale 10,000 18.13 181,279
2006-03-15 CDNS Cadence Design Systems Inc Sale 10,000 18.18 181,800
2006-03-15 CDNS Cadence Design Systems Inc Option Exercise 10,000 10.10 101,050
2006-02-15 CDNS Cadence Design Systems Inc Option Exercise 10,000 10.10 101,050
2006-02-15 CDNS Cadence Design Systems Inc Sale 10,000 17.04 170,375
2006-01-17 CDNS Cadence Design Systems Inc Option Exercise 10,000 10.10 101,050
2006-01-17 CDNS Cadence Design Systems Inc Sale 10,000 17.16 171,600

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 Porter William (EVP, Chief Financial Officer of Cadence Design Systems Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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