Stock Trading History of Davidson Marc

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 Davidson Marc since year 2005. The trader's CIK number is 1279632. At the time of this reporting, Davidson Marc is the VP of Engineering of Aspect Medical Systems Inc (stock ticker symbol ASPM).

Stock purchases, sales, and option exercises reported by *Davidson Marc* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-12-24	ASPM	Aspect Medical Systems Inc	Sale	2,500	15.00	37,500
2007-12-24	ASPM	Aspect Medical Systems Inc	Option Exercise	2,500	10.20	25,500
2007-09-14	ASPM	Aspect Medical Systems Inc	Sale	1,138	12.34	14,042
2007-09-12	ASPM	Aspect Medical Systems Inc	Sale	4,739	12.41	58,827
2007-09-12	ASPM	Aspect Medical Systems Inc	Option Exercise	3,646	3.79	13,830
2006-04-28	ASPM	Aspect Medical Systems Inc	Sale	12,916	27.82	359,387
2006-04-28	ASPM	Aspect Medical Systems Inc	Option Exercise	9,583	5.84	55,996

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 Davidson Marc (VP of Engineering of Aspect Medical Systems Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.