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Stock Trading History of Barker Steven

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 Barker Steven since year 2005. The trader's CIK number is 1403429. At the time of this reporting, Barker Steven is the Director of Masimo Corp . (stock ticker symbol MASI). See this page for all insider trading activities at Masimo Corp .

Stock purchases, sales, and option exercises reported by insider *Barker Steven* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-08-21	MASI	Masimo Corp	Sale	8,770	37.95	332,810
2008-08-21	MASI	Masimo Corp	Option Exercise	20,000	8.11	162,234
2008-07-09	MASI	Masimo Corp	Option Exercise	20,000	11.56	231,134
2008-07-09	MASI	Masimo Corp	Sale	20,000	35.09	701,810

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 Barker Steven (Director of Masimo Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.