Stock Trading History of Hessner Catherine

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 Hessner Catherine since year 2005. The trader's CIK number is 1270119. At the time of this reporting, Hessner Catherine is the Senior VP - Human Resources of Octel Corp . (stock ticker symbol OTL). See this page for all insider trading activities at Octel Corp .

Stock purchases, sales, and option exercises reported by insider *Hessner Catherine* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-05-12	IOSP	Octel Corp	Sale	1,330	22.84	30,374
2008-05-08	IOSP	Octel Corp	Option Exercise	1,330	.00	0
2008-03-11	IOSP	Octel Corp	Option Exercise	4,012	.00	0
2008-02-28	IOSP	Octel Corp	Purchase	1,200	19.40	23,274
2007-05-30	IOSP	Octel Corp	Option Exercise	606	23.00	13,938
2007-05-14	IOSP	Octel Corp	Option Exercise	1,622	.00	0
2007-05-14	IOSP	Octel Corp	Sale	1,622	60.10	97,477
2007-05-08	IOSP	Octel Corp	Option Exercise	10,620	.00	0
2007-05-08	IOSP	Octel Corp	Sale	6,620	55.67	368,544
2007-03-01	IOSP	Octel Corp	Purchase	177	51.10	9,045
2006-02-24	IOP	Octel Corp	Purchase	350	21.98	7,692

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 Hessner Catherine (Senior VP - Human Resources of Octel Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.