Stock Trading History of Hoffman Robert

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 Hoffman Robert since year 2005. The trader's CIK number is 1166288. At the time of this reporting, Hoffman Robert is the VP, Finance and CFO of Arena Pharmaceuticals Inc . (stock ticker symbol ARNA). See this page for all insider trading activities at Arena Pharmaceuticals Inc .

Stock purchases, sales, and option exercises reported by insider *Hoffman Robert* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-09-02	ARNA	Arena Pharmaceuticals Inc	Sale	10,000	6.16	61,640
2006-07-31	ARNA	Arena Pharmaceuticals Inc	Sale	7,500	10.48	78,637
2006-07-31	ARNA	Arena Pharmaceuticals Inc	Option Exercise	5,000	.60	3,000

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 Hoffman Robert (VP, Finance and CFO of Arena Pharmaceuticals Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.