Stock Trading History of Caldwell Thomas G

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 Caldwell Thomas G since year 2005. The trader's CIK number is 1223976. At the time of this reporting, Caldwell Thomas G is the President/Chief Executive Offi of Middlefield Banc Corp . (stock ticker symbol MBCN). See this page for all insider trading activities at Middlefield Banc Corp .

Stock purchases, sales, and option exercises reported by insider *Caldwell Thomas G* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-07-22	MBCN	Middlefield Banc Corp	Purchase	200	23.75	4,750
2008-02-12	MBCN	Middlefield Banc Corp	Purchase	100	37.25	3,725

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 Caldwell Thomas G (President/Chief Executive Offi of Middlefield Banc Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.