Stock Trading History of Mckeithen R L Smith

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 Mckeithen R L Smith since year 2005. The trader's CIK number is 1181478. At the time of this reporting, Mckeithen R L Smith is the Sr. VP, General Counsel & Sec. of Cadence Design Systems Inc (stock ticker symbol CDN).

Stock purchases, sales, and option exercises reported by insider *Mckeithen R L Smith* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-02-11	CDNS	Cadence Design Systems Inc	Sale	4,819	10.67	51,418
2008-02-05	CDNS	Cadence Design Systems Inc	Sale	6,078	10.63	64,609
2007-08-01	CDNS	Cadence Design Systems Inc	Sale	1,600	21.25	34,000
2007-08-02	CDNS	Cadence Design Systems Inc	Sale	5,935	21.20	125,799
2007-02-15	CDNS	Cadence Design Systems Inc	Option Exercise	21,000	12.59	264,469
2007-02-15	CDNS	Cadence Design Systems Inc	Sale	21,000	20.55	431,523
2007-02-09	CDNS	Cadence Design Systems Inc	Sale	4,819	20.51	98,841
2007-02-01	CDNS	Cadence Design Systems Inc	Option Exercise	20,000	12.59	251,874
2007-01-31	CDNS	Cadence Design Systems Inc	Option Exercise	10,000	12.59	125,937
2007-02-01	CDNS	Cadence Design Systems Inc	Sale	28,909	19.62	567,127
2007-02-02	CDNS	Cadence Design Systems Inc	Sale	1,800	19.49	35,082
2007-01-31	CDNS	Cadence Design Systems Inc	Sale	10,000	18.90	189,000
2007-01-16	CDNS	Cadence Design Systems Inc	Option Exercise	10,000	12.59	125,937
2007-01-16	CDNS	Cadence Design Systems Inc	Sale	10,000	18.13	181,300
2006-08-02	CDNS	Cadence Design Systems Inc	Sale	9,042	15.98	144,491
2006-05-04	CDNS	Cadence Design Systems Inc	Option Exercise	24,000	12.59	302,248
2006-05-04	CDNS	Cadence Design Systems Inc	Sale	24,000	19.50	468,000
2006-03-14	CDNS	Cadence Design Systems Inc	Sale	112,500	18.09	2,035,406
2006-03-14	CDNS	Cadence Design Systems Inc	Option Exercise	112,500	17.69	1,989,843
2006-02-02	CDNS	Cadence Design Systems Inc	Sale	10,489	16.82	176,424
2005-12-02	CDN	Cadence Design Systems Inc	Sale	1,083	17.45	18,898
2005-02-12	CDN	Cadence Design Systems Inc	Sale	1,083	17.45	18,898
2005-06-14	CDN	Cadence Design Systems Inc	Sale	100	14.00	1,400
2005-06-09	CDN	Cadence Design Systems Inc	Sale	120	14.00	1,680

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 Mckeithen R L Smith (Sr. VP, General Counsel & Sec. of Cadence Design Systems Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.