Stock Trading History of Chung Dong Chune Christopher

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 Chung Dong Chune Christopher since year 2005. The trader's CIK number is 1221306. At the time of this reporting, Chung Dong Chune Christopher is the Vice President Medical Affairs of Natus Medical Inc . (stock ticker symbol BABY). See this page for all insider trading activities at Natus Medical Inc .

Stock purchases, sales, and option exercises reported by insider *Chung Dong Chune Christopher* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-09-08	BABY	Natus Medical Inc	Sale	1,634	25.00	40,850
2008-08-04	BABY	Natus Medical Inc	Sale	866	24.15	20,913
2007-12-06	BABY	Natus Medical Inc	Sale	10,577	17.90	189,305

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 Chung Dong Chune Christopher (Vice President Medical Affairs of Natus Medical Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.