Stock Trading History of Davisson William

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 Davisson William since year 2005. The trader's CIK number is 1332761. At the time of this reporting, Davisson William is the Director of Cf Industries Holdings, Inc. . (stock ticker symbol CF). See this page for all insider trading activities at Cf Industries Holdings, Inc. .

Stock purchases, sales, and option exercises reported by insider *Davisson William* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-08-26	CF	Cf Industries Holdings, Inc.	Sale	1,500	147.50	221,250
2007-11-26	CF	Cf Industries Holdings, Inc.	Sale	1,772	85.00	150,620

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 Davisson William (Director of Cf Industries Holdings, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.