Stock Trading History of General Business Finance & Investments, Ltd.

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 General Business Finance & Investments, Ltd. since year 2005. The trader's CIK number is 1299471. At the time of this reporting, General Business Finance & Investments, Ltd. is the Other of Cogent Communications Group Inc (stock ticker symbol COI).

Stock purchases, sales, and option exercises reported by *General Business Finance & Investments, Ltd.* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-03-23	CCOI	Cogent Communications Group Inc	Sale	2,861,217	23.41	66,981,089
2007-03-23	CCOI	Cogent Communications Group Inc	Sale	2,861,217	23.41	66,981,089
2006-11-14	COI	Cogent Communications Group Inc	Sale	1,000,000	14.64	14,640,000
2006-06-07	CCOI	Cogent Communications Group Inc	Sale	427,774	8.53	3,647,842

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 General Business Finance & Investments, Ltd. (Other of Cogent Communications Group Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.