Stock Trading History of Hamlin Clay W Iii

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 Hamlin Clay W Iii since year 2005. The trader's CIK number is 1048456. At the time of this reporting, Hamlin Clay W Iii is the of Corporate Office Properties Trust (stock ticker symbol OFC).

Stock purchases, sales, and option exercises reported by *Hamlin Clay W Iii* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-02-22	OFC	Corporate Office Properties Trust	Option Exercise	11,400	9.25	105,450
2007-02-21	OFC	Corporate Office Properties Trust	Option Exercise	188,600	9.25	1,744,550
2007-02-22	OFC	Corporate Office Properties Trust	Sale	11,400	54.04	616,056
2007-02-21	OFC	Corporate Office Properties Trust	Sale	188,600	54.01	10,186,286
2006-08-08	OFC	Corporate Office Properties Trust	Sale	112,500	46.95	5,281,875
2006-08-07	OFC	Corporate Office Properties Trust	Sale	112,500	47.20	5,310,000
2006-08-08	OFC	Corporate Office Properties Trust	Option Exercise	112,500	7.62	857,812
2006-08-07	OFC	Corporate Office Properties Trust	Option Exercise	112,500	7.62	857,812

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 Hamlin Clay W Iii ( of Corporate Office Properties Trust at the time of this reporting) see the Securities and Exchange Commission (SEC) website.