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Stock Trading History of Chang David C

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 Chang David C since year 2005. The trader's CIK number is 1188184. At the time of this reporting, Chang David C is the of Axt Inc (stock ticker symbol AXTI).

Stock purchases, sales, and option exercises reported by *Chang David C* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2006-08-21	AXTI	Axt Inc	Purchase	1,500	3.05	4,575
2006-08-28	AXTI	Axt Inc	Purchase	1,000	3.40	3,400
2006-08-23	AXTI	Axt Inc	Purchase	550	3.15	1,732
2006-02-24	AXTI	Axt Inc	Purchase	2,800	2.97	8,316

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 Chang David C ( of Axt Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.