Stock Trading History of Renfield Miller Douglas 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 Renfield Miller Douglas C since year 2005. The trader's CIK number is 1276034. At the time of this reporting, Renfield Miller Douglas C is the Executive Vice President of Ambac Financial Group Inc . (stock ticker symbol ABK). See this page for all insider trading activities at Ambac Financial Group Inc .

Stock purchases, sales, and option exercises reported by insider *Renfield Miller Douglas C* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-03-07	ABK	Ambac Financial Group Inc	Purchase	10,000	6.75	67,500
2007-05-04	ABK	Ambac Financial Group Inc	Sale	349	94.16	32,861
2007-05-01	ABK	Ambac Financial Group Inc	Sale	7,100	92.38	655,928
2007-05-01	ABK	Ambac Financial Group Inc	Option Exercise	10,000	48.66	486,599
2006-07-28	ABK	Ambac Financial Group Inc	Sale	8,240	83.16	685,238
2006-07-28	ABK	Ambac Financial Group Inc	Option Exercise	12,000	33.00	396,000
2006-03-15	ABK	Ambac Financial Group Inc	Option Exercise	8,000	33.00	264,000
2006-03-15	ABK	Ambac Financial Group Inc	Sale	5,580	79.50	443,610

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 Renfield Miller Douglas C (Executive Vice President of Ambac Financial Group Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.